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ANDO ELECTRIC AQ7250 Instruction Manual

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AQ7250
mini-OTDR
Instruction Manual
ANDO ELECTRIC CO., LTD
©Copyright ANDO ELECTRIC CO., LTD. JAPAN 1999
AS-62488-1
Rev.2.1

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  • Page 1 AQ7250 mini-OTDR Instruction Manual ANDO ELECTRIC CO., LTD ©Copyright ANDO ELECTRIC CO., LTD. JAPAN 1999 AS-62488-1 Rev.2.1...

  • Page 2: Preface

    Before using the AQ7250 mini-OTDR (hereafter called the instrument), be sure to read this manual thoroughly. Especially, read the “Safety precautions” in the opening section of this manual and familiarize yourself with the contents, then use the instrument.

  • Page 3: Warranty

    • ANDO ELECTRIC products posses certificates which guarantee quality. • ANDO ELECTRIC products are shipped after strict inspection has been carried out according to the ANDO ELECTRIC quality assurance system. If a defect occurs during manufacturing, or if a defect is caused by an accident during transportation, contact the nearest office in charge of sales, given at the end of the instruction manual.

  • Page 4: Marks And Symbols

    Marks and symbols Marks and symbols Marks and symbols Marks and symbols Marks and symbols Safety mark and symbol The following marks are used as guides for the safe handling of the instrument, to prevent you or other people from being harmed, and to prevent the instrument from being damaged. Familiarize yourself with these symbols, then read the manual.

  • Page 5: Safety Precautions

    Safety precautions Safety precautions Safety precautions Safety precautions Safety precautions To use the instrument safely, read this instruction manual, especially the section “Safety precautions” thoroughly. After you have read the manual, be sure to store it in an easily accessible place. For the safety operation This instrument is a Class I measuring instrument.

  • Page 6: Laser Safety

    Safety precautions LASER SAFETY Initial Safety Information for Laser Source Unit. The Specifications for these Units are as follows. AQ7254 AQ7255 AQ7259 FP-Laser FP-Laser FP-Laser Laser Type InGaAsP InGaAsP AlGaAsP/InGaAsP Laser Class According to 21 CFR 1040.10 (Canada, USA) Laser Class According to EN60825-1:1994+A11:1996 (Europe)
  • Page 7 Safety precautions NOTE Canada, USA The Laser safety warning labels are fixed on the optical unit NOTE Europe A sheet of laser safety warning labels are included with the optical unit. You MUST stick the labels in the local language onto the outside of the mainframe, in a position where they are clearly visible to anyone using the instrument.
  • Page 8 Safety precautions LASER SAFETY Informations et Consignew de Sécurité Relatives à l’Utilisation des Lasers. Les Spécifications des Modules Laser sont les Suivantes: AQ7254 AQ7255 AQ7259 FP-Laser FP-Laser FP-Laser Laser Type InGaAsP InGaAsP AlGaAsP/InGaAsP Laser Class According to 21 CFR 1040.10 (Canada, USA) Laser Class According to...
  • Page 9 Safety precautions Remarque Canada, USA Les etiquettes de sécurité sont affichées sur le module laser. Remarque Europe Les etiquettes de sécurité sont incluses dans le module laser. Il est obligatoire de coller une etiquette en langage local à l’exterieur de l’appareil de telle sorte qu’elle soit parfaitement visible par l’utilisateur.
  • Page 10 Safety precautions Il est obligatoire de retourner tout appareil présentant un défaut de fonctionnement du laser uniquement à un centre de réparation. radiations WARNING L’utilisation du laser en dehors de ses limites de performances et des procédures définies par peut conduire à une exposition dangereuse de l’utilisateur aux radiations.

  • Page 11: Laser Safety

    Safety precautions LASER SAFETY Sicherheitsinformation für Laser Quellen Die Spezifikationen für die Lasereinschübe sind wie folgt: AQ7254 AQ7255 AQ7259 FP-Laser FP-Laser FP-Laser Laser Type InGaAsP InGaAsP AlGaAsP/InGaAsP Laser Class According to EN60825-1:1994+A11:1996 (Europe) 0.02, 0.1, 0.2, 0.5, 1, 4, 0.01, 0.02, 0.1, 0.2, 0.5, 0.01, 0.02, 0.1, 0.2, 0.5, Pulse Width 1, 4, 10, 20...
  • Page 12 Safety precautions Hinweis Europe Ein Blatt mit Laser Warnaufklebern ist jedem Lasereinschub beigefügt. Die Aufkleber müssen in der Landessprache, für den Anwender gut sichtbar, an der Aussenseite des Grundgerätes angebracht werden. Defekte Lasereinschübe müssen zur Reparatur oder zur Kalibration an ein Service Büro geschickt werden.

  • Page 13: Precautions For The Power Supply

    Safety precautions Precautions for the power supply Three types of the power supply can be used for the instrument. Use each power supply after reading the precautions thoroughly. Special AC adapter WARNING Be sure to provide grounding before operation. Not grounding may cause an electric shock or damage to the equipment.
  • Page 14 • Please remove a battery pack, when you do not use AQ7250 for a long period of time. Please keep the removed battery pack in the place with little humidity of -20°C and +30°C.

  • Page 15: Precautions For The Operating Environment And Conditions

    Safety precautions Precautions for the operating environment and conditions Rule for the operating environment WARNING Be careful not to let the instrument get wet. A fire, electric shock, or damage to the equipment may occur. Rule for the operating conditions WARNING Be sure to use the authorized battery pack and AC adapter.
  • Page 16 Safety precautions Rules and prohibitions relating to the installation environment and conditions WARNING Do not insert a metal bar into the interior from the opening. A fire, electric shock, or an accident may occur. CAUTION Keep the power cord away from the heat sources. An uncoated cord may cause a fire or electric shock.

  • Page 17: Precaution When Handling The Instrument

    Safety precautions Precaution when handling the instrument For the procedure for handling the instrument, refer to the instruction manual. If an alert symbol (combined with “WARNING” or “CAUTION”) is found, use the instrument according to the instructions in the manual. WARNING Do not place containers with water or other liquids, or any small metal pieces above or close to the instrument.

  • Page 18: Precautions For Maintenance

    Safety precautions Precautions for maintenance Regular maintenance is recommended. Contact the nearest office in charge of sales, given at the end of the instruction manual. CAUTION If dust has acculumated in the instrument for a long time without being cleaned, a fire or damage to the equipment may occur.

  • Page 19: How The Manual Is Structured

    How the manual is structured How the manual is structured How the manual is structured How the manual is structured How the manual is structured Chapter 1 Introduction Describes the names and functions of each part of this instrument, the setup procedure before using the instrument, and daily maintenance.

  • Page 20: Table Of Contents

    Contents Contents Contents Contents Contents Preface ..................I Warranty ...................II Marks and symbols ..............III Safety mark and symbol............... III Other symbols ................III Safety precautions ..............IV For the safety operation..............IV LASER SAFETY................V LASER SAFETY................VII LASER SAFETY................X Precautions for the power supply ..........XII Precautions for the operating environment and conditions ..

  • Page 21: Contents

    Contents 1.8 Optical connector and optical adapter notes ....1-26 The optical connector..............1-26 The optical adapter..............1-26 1.9 Notes before measurement ........... 1-27 AQ7254,55,56,54B,55B,56B,59 is used........1-27 Chapter2 Basic Measurement ......2-1 2.1 Measurement flow ............2-2 2.2 Connecting the optical fiber ..........2-3 2.3 Setting CONDITIONS ............
  • Page 22 Contents Chapter3 Inputting Text ........3-1 3.1 Inputting text ..............3-2 3.2 Using the soft keys............3-4 3.3 Using the USER DICTIONARY ........3-5 Registering a word ..............3-5 Retrieving a registered word ............3-7 Clearing a registered word ............3-9 Chapter4 Storing and Recalling of the Measured Data ...
  • Page 23 Contents 6.2 DISPLAY setting............6-10 Setting TRACE VIEW...............6-11 Setting INFORMATION............6-16 Setting AVERAGE..............6-18 Setting the basic screen COLOR ..........6-19 6.3 INSTRUMENT setting............ 6-20 Displaying the INSTRUMENT menu........6-20 Setting RS-232C ............... 6-21 Setting DATE/TIME..............6-23 Setting MOUSE ................ 6-25 6.4 EXPANSION setting ............
  • Page 24 Contents 8.4 Setting CONDITIONS ............. 8-7 8.5 The label number is Auto Increment......8-10 8.6 Connect the external printer .......... 8-13 XXIII...
  • Page 25 Contents XXIV...
  • Page 26 1 Introduction Chapter 1 Introduction 1.1 AQ7250mini-OTDR........1-2 1.2 Name and function of each part ....1-2 1.3 Screen display ..........1-8 1.4 Turning on/off the power......1-16 1.5 Changing the optical unit......1-19 1.6 Using the battery pack ......1-20 1.7 Daily maintenance ........

  • Page 27: Chapter1 Introduction

    1 Introduction 1.1 AQ7250mini 1.1 AQ7250mini- - - - OTDR 1.1 AQ7250mini 1.1 AQ7250mini OTDR OTDR OTDR The AQ7250mini-OTDR is a measuring instrument, which detects reflected light at the connection and fracture points, and backscattered light due to the Rayleigh scattering. Thereby, event localization and transmission loss measurement from one side of the optical fiber can be performed efficiently.

  • Page 28: Main Body (Top)

    1 Introduction Main body (Top) Main body (Right side) Floppy disk drive Write data to the floppy disk, and Floppy disk ejection button read data from the floppy disk. Press this to eject the floppy disk. Do not press this while the floppy disk access light is lit.

  • Page 29: Main Body (Back)

    1 Introduction Main body (Back) Main body (Bottom) Frame Frame Frame Frame Ground Ground Ground Ground...

  • Page 30: Accessories

    1 Introduction Accessories The accessories for this instrument are as follows: For details about the optional items, refer to page 7-65 “Specifications”. AC adapter Battery pack Power cable Shoulder strap Instruction manual...

  • Page 31: Optional Items

    1 Introduction Optional items The optional items for this instrument are as follows: For details about the optional items, refer to page 7-65 “Specifications”. Optical unit Spare battery pack Keyboard Mouse Soft carrying case Hard carrying case IC memory card AQ9441(*) universal adapter WARNING Unfasten shoulder credit belt.
  • Page 32 1 Introduction Sub unit Optical power meter Visual light source unit GP-IB unit Centronics unit Extension unit Printer unit Optical switch unit...

  • Page 33: Screen Display

    1 Introduction 1.3 Screen display 1.3 Screen display 1.3 Screen display 1.3 Screen display This section explains the screen display and the trace. Screen display TRACE TRACE FILE SPECIAL SETUP :CURSOR(COARSE) MODE LEVEL 1 MENU MARKER MARKER LABEL CONDITIONS MULTI TRACE AUTO SEARCH 0.000dB LABEL: 40km...
  • Page 34 1 Introduction (15) Distance : Distance from the reference point to the cursor is displayed. (16) WAVELENGTH : Wave length for the measurement and measurement fiber type is displayed. (17) PW : Width of the optical pulse which is sent from the light source unit is displayed.

  • Page 35: Operation On The Screen

    1 Introduction Operation on the screen Moving the cursor This section explains the procedure for moving the cursor displayed on the screen. Move the cursor Turn the rotary knob while the distance field is displayed with its color inverted. The cursor moves to right by turning the knob clockwise. When the screen is enlarged and the cursor moves to the extreme right, the screen is scrolled.
  • Page 36 1 Introduction Enlarging/Reducing the display This section explains the procedure, by which the measured trace displayed on the screen is enlarged/reduced. Select the area to enlarge/reduce the display Position the cursor at the area to be enlarged/reduced by turning the rotary knob.
  • Page 37 1 Introduction Y-axis enlarge/reduce Press the [UP/DOWN] key once while the distance field is selected. The Y-axis scale is displayed with its color inverted. Each time the [UP/DOWN] key is pressed, the next field in the following sequence is displayed with its color inverted: “Distance” → “Y-axis scale” → “Y-axis display starting level”...
  • Page 38 1 Introduction Adjusting the top/bottom position This section explains the procedure, by which the top/bottom position of the displayed trace is adjusted. Adjust the top/bottom position of the displayed trace Press the [UP/DOWN] key twice while the distance field is selected. The Y-axis display starting level field is displayed with its color inverted.

  • Page 39: Reading The Trace

    1 Introduction Reading the trace This section explains how to read each trace. MODE TRACE FILE SPECIAL SETUP :CURSOR(COARSE) LEVEL 1 MENU MARKER LABEL CONDITIONS MULTI TRACE AUTO SEARCH MARKER 0.000dB LABEL: 40km MARKER Near end LABEL Splice Loss Far end Reflection CONDITIONS MULTI...
  • Page 40 1 Introduction Dynamic range Represents the level difference between the fiber end connected to the instrument, and the noise level (RMS). The noise level (RMS) is 2.6dB lower than the noise peak. Dynamic range (SNR=1) Noise peak Noise level (RMS) Secondary reflection When an excessive Fresnel reflection occurs, the first reflection is returned and then the second reflection may be detected in the middle of the optical fiber cable.

  • Page 41: Turning On/Off The Power

    1 Introduction 1.4 Turning on/off the power 1.4 Turning on/off the power 1.4 Turning on/off the power 1.4 Turning on/off the power Turning on the power This instrument operates by AC power supply, or by battery pack. This section explains the procedure for turning on the power using each power source. Using the AC power supply Connect the AC adapter to this instrument (1) Connect the AC adapter plug to this instrument, and then insert the power...
  • Page 42 1 Introduction Using the battery pack Turn ON the power Open the cover on the right side of this instrument. Turn ON the power by turning the power switch clockwise. The power flows into the instrument and the POWER LED turns on. WARNING Do not connect the AC adapter when the power switch is turned ON.

  • Page 43: Turning Off The Power

    1 Introduction Turning off the power This section explains the procedure for turning off the power. Turn off the power WARNING Ensure that the laser light has stopped before turning OFF the power switch. The optical unit may be damaged. Open the cover on the right side of this instrument.

  • Page 44: Changing The Optical Unit

    1 Introduction 1.5 Changing the optical unit 1.5 Changing the optical unit 1.5 Changing the optical unit 1.5 Changing the optical unit This section explains the procedure for changing the optical unit. Turn off the power For the procedure for turning off the power, refer to page 1-17 “Turning off the power”.

  • Page 45: Using The Battery Pack

    1 Introduction 1.6 Using the 1.6 Using the battery 1.6 Using the 1.6 Using the battery battery battery pack pack pack pack The AQ7250mini-OTDR can be used as a portable instrument. The battery pack, rather than the AC adapter, can be used for the power supply. In the case of a brand new battery pack with a full charge, the battery running time is approximately seven hours.

  • Page 46: Charging The Battery Pack

    Please remove a battery pack, when you do not use AQ7250 for a long period of time. Please keep the removed battery pack in the place with little humidity of -20°C and +30°C.

  • Page 47: Daily Maintenance

    1 Introduction 1.7 Daily maintenance 1.7 Daily maintenance 1.7 Daily maintenance 1.7 Daily maintenance Daily maintenance is necessary in order to prevent troubles in advance and ensure optimum performance of the instrument over a long period. This section explains the daily maintenance of the main body exterior, optical fiber cable connector and optical fiber cable adapter.
  • Page 48 1 Introduction Cleaning the optical fiber cable connector Clean the end of the optical fiber cable connector Ensure that the end of the optical fiber cable connector is cleaned. If any dust accumulates, it damages the optical fiber cable adapter of this instrument and then normal measurement can not be carried out.
  • Page 49 1 Introduction Cleaning the optical fiber cable adapter (AQ9441(*) universal adapter) Open the cover of the optical fiber cable connector Open the cover of the optical fiber cable connector on the top of this instrument. Clean the optical fiber cable adapter using the special stick Clean the inside and outside surfaces of the front shell using the special stick.

  • Page 50: Cleaning The Fd Drive

    1 Introduction Install a new front shell Clean the inside and outside surfaces of the new front shell, using the special stick. Clean the rear shell and the end of the optical fiber using the special stick. The special cleaning stick for the optical fiber cable adapter is as follows: “CLETOP Stick-Type”...

  • Page 51: Optical Connector And Optical Adapter Notes

    1 Introduction Optical connector and optical adapter notes Optical connector and optical adapter notes Optical connector and optical adapter notes Optical connector and optical adapter notes This section explains how to handle the optical connector and the optical adapter to this instrument, using the FC connector, FC adapter as an example.

  • Page 52: Notes Before Measurement

    1 Introduction 1.9 Notes before measurement Notes before measurement Notes before measurement Notes before measurement This section describes the notes when communication system is measured. AQ7254,55,56,54B,55B,56B,59 is used Each unit uses the same wave length as the communication light. The measurement light might influence the communication when there is communication light in the measured fiber, and the measurement may not be correct.
  • Page 53 1 Introduction 1-28...

  • Page 54: Chapter2 Basic Measurement

    2 Basic Measurement Chapter 2 Basic Measurement 2.1 Measurement flow ........2-2 2.2 Connecting the optical fiber ....... 2-3 2.3 Setting CONDITIONS ........2-5 2.4 Measuring the trace........2-30 2.5 Measuring the distance......2-33 2.6 Analyzing the trace automatically.... 2-37 2.7 Analyzing the trace manually ....

  • Page 55: Measurement Flow

    2 Basic Measurement 2.1 Measurement flow Measurement of optical fiber cables is described in the following flow chart. For details of each process, refer to the appropriate pages. Carry out initial setting, or setting during continuous measurement. Various settings Refer to page 6-1 “6. Various Setting Procedures”. Connect the desired optical fiber cable to this instrument.

  • Page 56: Connecting The Optical Fiber

    2 Basic Measurement 2.2 Connecting the optical fiber Before starting measurement, connect the optical fiber cable to this instrument. This section describes how to connect the optical fiber cable to this instrument, using the FC connector as an example. WARNING Do not replace the optical fiber cable while laser light is being emitted.
  • Page 57 2 Basic Measurement Clean the optical fiber cable adapter For the procedure for cleaning the optical fiber cable adapter, refer to page 1-23 “Cleaning the optical fiber cable adapter”. Connect the optical connector to this instrument Open the optical adapter cover on the top of the instrument. Insert the optical connector into the optical adapter so that its protrusion matches the adapter notch.

  • Page 58: Setting Conditions

    2 Basic Measurement 2.3 Setting CONDITIONS 2.3 Setting CONDITIONS 2.3 Setting CONDITIONS 2.3 Setting CONDITIONS Before measuring traces of the optical fiber cable, it is necessary to set the conditions for measuring traces. Set the measurement conditions according to the procedure for each item. Setting AUTO SETUP This instrument adopts the function by which the optimal Dist.
  • Page 59 2 Basic Measurement Select the AUTO SETUP items Measurement conditions can also be set while checking the trace state using “preview”. For the procedures for previewing the trace state, refer to page 2-30 “Previewing the trace”. Press the [ENTER] key with “AUTO SETUP” selected (color inverted). Only the AUTO SETUP item is displayed with its color inverted.

  • Page 60: Setting Dist. Range

    2 Basic Measurement Setting Dist. RANGE This item describes how to set the measurement distance for the optical fiber cable. If “AUTO RANGE” or “ONE BUTTON” has been selected in “AUTO SETUP”, the distance range cannot be changed. Select “Dist. RANGE” Select the “Dist.
  • Page 61 2 Basic Measurement Turn the rotary knob and select the desired setting item. The selected distance width is displayed with its color inverted. Be sure set Dist. RANGE to a longer length than the optical fiber cable to be measured. The standard range is twice as long as the optical fiber cable.

  • Page 62: Setting Pulse Width

    2 Basic Measurement Setting PULSE WIDTH This item describes how to set the pulse width for the laser light which is used for measurement of the optical fiber cable. If “AUTO RANGE” or “ONE BUTTON” has been selected in “AUTO SETUP”, the pulse width cannot be changed.
  • Page 63 2 Basic Measurement Turn the rotary knob and select the desired setting item. The selected pulse width is displayed with its color inverted. Each pulse width has an advantage and a disadvantage as follows: • Short pulse width : Fine measurement is possible. Long distance measurement is impossible.

  • Page 64: Setting Attenuation

    2 Basic Measurement Setting ATTENUATION This item describes how to control amplification of the light to be measured. If “AUTO RANGE”, “ONE BUTTON”, or “AUTO ATT” has been selected in “AUTO SETUP”, the attenuation cannot be changed. Select “ATTENUATION” Select the “ATTENUATION” by turning the rotary knob while the CONDITIONS menu is being displayed.
  • Page 65 2 Basic Measurement Turn the rotary knob and select the desired setting item. The selected attenuation value is displayed with its color inverted. The trace can be measured sensitively when the highest attenuation value within the range where the trace is not saturated, is selected. Usable attenuation value for each pulse width (AQ7254,55) Pulse width Attenuation...

  • Page 66: Setting Average (Times/Time)

    2 Basic Measurement Setting AVERAGE (TIMES/TIME) Equalization can be set using either the number of equalizations or the equalization time. For the procedure to switch between the number of equalizations and the equalization time, refer to page 6-18 “Setting the equalization display”. This instrument improves the signal/noise ratio by making multiple signals from a signal mixed with noise, equalizing them, and then displaying the trace.
  • Page 67 2 Basic Measurement Turn the rotary knob and select the desired setting item. The selected number of equalizations or the equalization time is displayed with it color inverted. The maximum number of equalizations which can be carried out by this instrument is 2^20.

  • Page 68: Setting Avg. Method

    2 Basic Measurement Setting AVG. METHOD This item describes how to set the equalization method (AVG. METHOD) of the trace. Select “AVG. METHOD” Select the “AVG. METHOD” by turning the rotary knob while the CONDITIONS menu is being displayed. The AVG. METHOD is displayed with its color inverted. Hi-RETURN DIVISION TOTAL...
  • Page 69 2 Basic Measurement Setting items of “AVG. METHOD” TOTAL (Total calculation) The displayed trace is equalized without any processing. The dynamic range to be checked in one screen is up to approx. 28dB (PW=20 µs, 2^16, SNR=1). When there is sufficient dynamic range, use this item. Measured trace example DIVISION (Normal calculation by division) Equalization is carried out by dividing the calculated area into several parts and increasing...
  • Page 70 2 Basic Measurement Hi-RETURN (High reflection calculation by division) The equalization method is the same as “DIVISION”. Using this method, the trace cannot be saturated easily. However, measurement time is increased as the number of divisions is increased. Measured trace example 2-17...

  • Page 71: Setting Data Size

    2 Basic Measurement Setting DATA SIZE This item describes how to set the number of measuring points for the data loaded into the trace. Select “DATA SIZE” Select the “DATA SIZE” by turning the rotary knob while the CONDITIONS menu is being displayed. The DATA SIZE is displayed with its color inverted.

  • Page 72: Setting The Ior (Index Of Refraction)

    2 Basic Measurement Setting the IOR (Index of Refraction) This section describes how to set the IOR. The distance measured by this instrument is calculated based on the value of the IOR (index of refraction). If the IOR has not been set correctly, the measurement will be incorrect.

  • Page 73: Setting Back Scatter

    2 Basic Measurement Setting BACK SCATTER The back scatter level varies depending on the pulse width. Accordingly, the back scatter level input via this instrument is specific to a value of pulse width per 1 µs. If the pulse width is changed during measurement, calculate the back scatter level which meets the pulse width to be measured in the instrument.
  • Page 74 2 Basic Measurement (2) Turn the rotary knob and change the setting value. The following settings can be carried out using the rotary knob. By turning the rotary knob, the setting value can be changed by 0.01dB. By pressing the rotary knob once and turning it, the setting value can be changed by 1.00dB.

  • Page 75: Switching Wavelength

    2 Basic Measurement Switching WAVELENGTH This item describes how to switch the wavelength. Select “WAVELENGTH” Press the [F1] (WAVELENGTH) key while the CONDITIONS menu is being displayed. An “*” mark is displayed close to the selected wavelength (1.31 µ/1.55 µ). The longer the laser light wavelength becomes, the greater the distance range which can be measured.

  • Page 76: Carrying Out Filter Process

    2 Basic Measurement Carrying out FILTER process The FILTER process is used to reduce noise for the measured trace, and to make the trace smooth. The FILTER process is carried out for equalized traces or reproduced traces. Display the trace on the screen For the procedure to display the trace on the screen, Refer to page 2-30 “2.4 Measuring the trace”...

  • Page 77: Switching Approx

    2 Basic Measurement Switching APPROX. The approximation when a loss is measured consists of LSA and TPA. This section describes how to switch LSA to/from TPA. For outlines of LSA and TPA, refer to the next page. Switch the approximation Press the [F3] (APPROX.) key while the CONDITIONS menu is being displayed.
  • Page 78 2 Basic Measurement Least Squares Approximation is the method by which a loss measured between two points is approximated. Since this method uses all the data relating to a loss measured between two points and approximates the trace, measurement can be carried out where the number of errors is the least. Consequently, personal errors during setting are reduced, and measurement reproducibility is improved.
  • Page 79 2 Basic Measurement Two Point Approximation is the method by which a loss measured between two points is specified. If unnecessary reflection exists in the measurement area, this method is used to check only the loss measured between two points while ignoring the trace. However, the measured value may vary significantly depending on personal error during setting or marker position.

  • Page 80: Switching Opt Sw Channel

    2 Basic Measurement Switching OPT SW CHANNEL This section describes how to switch the optical switch channel when the optional optical switch or optical channel has been connected to this instrument. For the procedure for installing the optical switch unit, refer to page 7-8 “Installing and removing the expansion unit”.

  • Page 81: Carrying Out Plug Check

    2 Basic Measurement Carrying out PLUG CHECK This instrument is equipped with a function which automatically checks the connection to the optical connector. When the back scatter level for the connected area of the instrument’s optical adapter and the optical fiber cable is measured, the connection is checked to determine whether or not the value of the back scatter level is within the specified range, and an evaluation of good/acceptable/bad is made.
  • Page 82 2 Basic Measurement Measure the trace Press either the [REAL TIME] key or the [AVERAGING START/STOP] key. One of three messages appears on the top right of the screen in approx. 3 seconds, depending on the connection of the measured optical fiber cable. When equalization is executed in the preview display, the connection is not checked and the message does not appear even if “PLUG CHECK”...

  • Page 83: Measuring The Trace

    2 Basic Measurement 2.4 Measuring the trace 2.4 Measuring the trace 2.4 Measuring the trace 2.4 Measuring the trace This section describes how to display the measured trace of the optical fiber cable on the instrument’s display. More than one optical fiber cable can be measured simultaneously. Please note that there is possibility to influence the measurement result, when some instrument to generate strong electromagnetic field such as cellular phone is put near this instrument.

  • Page 84: Equalizing The Trace

    2 Basic Measurement Equalizing the trace Since this instrument detects faint signals mixed with noise, it can improve the S/N (signal/noise) ratio by making multiple signals from such faint signals. This process is referred to as equalization. This section explains how to carry out equalization. Set the measurement conditions For setting procedure of the measurement conditions, refer to page 2-5 “2.3 Setting CONDITIONS”.

  • Page 85: Carrying Out Additional Equalization Of The Trace

    2 Basic Measurement Carrying out additional equalization of the trace When the trace equalized in the previous step has been displayed, the trace may not be sharp due to noise. In this case, additional equalization can be carried out. Press the [AVERAGING START/STOP] key Press the [AVERAGING START/STOP] key again while the trace of “AVG’NG 100%”...

  • Page 86: Measuring The Distance

    2 Basic Measurement 2.5 Measuring the distance 2.5 Measuring the distance 2.5 Measuring the distance 2.5 Measuring the distance Measuring the distance using the cursor This section describes how to measure the distance using the cursor. When this instrument is set as the reference point Measure the distance from this instrument to the target point Turn the rotary knob while the trace is being displayed on the screen, and move the cursor to the target point.
  • Page 87 2 Basic Measurement When the reference point is to be changed Display the MARKER menu Press the [F1] (MARKER) key in TRACE mode. The MARKER menu is displayed. Display the 2nd FUNCTION screen Press the [F5] (2nd FUNCTION) key in the MARKER menu. The 2nd FUNCTION screen is displayed.
  • Page 88 2 Basic Measurement Move the cursor to the position to be set as the reference point Turn the rotary knob and move the cursor to the position to be set as the reference point. Determine the reference point Press the [F3] (SET REFERENCE) key in the 2nd FUNCTION screen. The arrow which indicates the distance reference point appears at the bottom of the screen, and “0 km”...
  • Page 89 2 Basic Measurement Measure the distance to the target point Turn the rotary knob and move the cursor to the target point. The distance from the changed reference point to the target point is displayed in the “Distance” field. When the reference point is to be cleared, press the [F3] (CLEAR REFERENCE) key in the 2nd FUNCTION screen.

  • Page 90: Analyzing The Trace Automatically

    2 Basic Measurement 2.6 Analyzing the trace automatically 2.6 Analyzing the trace automatically 2.6 Analyzing the trace automatically 2.6 Analyzing the trace automatically This section explains the procedures for analyzing the trace, which is displayed by recalling the previous data and measured traces, automatically.

  • Page 91: Displaying Event Information On The Trace

    2 Basic Measurement Displaying Event information on the trace This section explains the procedure in which the auto-searched event, from the event table, is displayed with Markers. Display the event with Markers Press the [F1] (EVENT display) key while the event table is being displayed. The auto-searched events are displayed with the event number and Markers.
  • Page 92 2 Basic Measurement Inserting an Event This section explains the procedure, in which an event which was not searched automatically is inserted into the trace, in the event display on the AUTO SEARCH menu. Position the cursor at the event Turn the rotary knob so that the cursor is positioned at the event which was not searched automatically.
  • Page 93 2 Basic Measurement Deleting an Event This section explains the procedure for deleting an event in the event display on the AUTO SEARCH menu. Select the event to delete Press the [F1] (NEXT EVENT) key or [F2] (PREVIOUS EVENT) key to select event to delete.
  • Page 94 2 Basic Measurement Editing Event Marker Markers may be marked at incorrect positions, due to noise influence. In this case, the Marker position can be changed. This section explains the procedures in which the Marker position is changed in the EVENT display of the AUTO SEARCH menu, using the Marker Y2 as an example.
  • Page 95 2 Basic Measurement Mark the position Press the [F4] (MARKER Y2) key. The MARKER Y2 moves to the cursor position. Deleting Markers 1. Press the [F5] (2nd FUNCTION) key. The 2nd FUNCTION is displayed. 2. Press the [F1] (CLEAR MAKER) key. All the Markers displayed on the screen are deleted.

  • Page 96: Editing The Event Note

    2 Basic Measurement Editing the event note A comment can be entered for each event displayed on the event table. This section explains the procedure for entering comments relating to the event. Select the event for which a comment is to be entered Select the desired event by turning the rotary knob.

  • Page 97: Printing The Event List

    2 Basic Measurement Printing the event list This section explains the procedure for printing the event list. Connect the printer Connect the printer to the instrument. For the procedure for connecting the printer, refer to page 7-8 “Installing the expansion unit” or page 7-14 “Installing the external printer”. Set the printer Set the printer using the EXPANSION menu in SETUP mode.

  • Page 98: Changing The Analytic Conditions

    2 Basic Measurement Changing the analytic conditions Displaying the CHANGE CONDITION screen This section explains the procedure for displaying the CHANGE CONDITION screen. Display the CHANGE CONDITION screen Press the [F4] (CHANGE CONDITION) key while the event table is being displayed.
  • Page 99 2 Basic Measurement Changing the analytic conditions If the threshold (Splice Loss, Return Loss, Fiber end) for automatic calculation is changed, the automatic search is restarted. Therefore, the contents indicated by marker, and the comment which has been input in the event note, are cleared.
  • Page 100 2 Basic Measurement Correcting DISTANCE The distance is determined using the IOR as usual. If the distance is available, the IOR can be determined by correcting the distance. Correct the distance Press the [F3] (ADJUST DISTANCE/IOR) key while the CHANGE CONDITION screen is being displayed.
  • Page 101 2 Basic Measurement Correcting SPAN DISTANCE This section explains the procedure for correcting the span distance without changing the IOR. Correct the span distance (When the span distance of event No. 2 is to be corrected to 40 km) Press the [F4] (ADJUST DISTANCE/SPAN IOR) key while the CHANGE CONDITION screen is being displayed.

  • Page 102: Carrying Out Span Analysis Of The Trace

    2 Basic Measurement Carrying out SPAN ANALYSIS of the trace This section explains the procedure for analyzing the distance, loss, and return loss only for the specified span necessary for measurement. Display the SPAN ANALYSIS screen Press the [F5] (SPAN ANALYSIS) key while the event table is being displayed.
  • Page 103 2 Basic Measurement Specify the SPAN END point Turn the rotary knob and move the cursor to SET SPAN END. For the procedure for enlarging the screen, refer to page 1-9 “Operations on the screen”. Press the [F1] (SET SPAN END) key. Marker E appears at the cursor position.
  • Page 104 2 Basic Measurement Changing the return base value. Normally, the reflectance is determined based on the near end. If measurement is carried out using a dummy fiber, the reflectance is determined based on the measurement starting point on the cable. Change the return base value Turn the rotary knob and move the cursor to the position for the return base value.

  • Page 105: Analyzing The Trace Manually

    2 Basic Measurement 2.7 Analyzing the trace manually 2.7 Analyzing the trace manually 2.7 Analyzing the trace manually 2.7 Analyzing the trace manually This section explains the procedures for measuring the Splice Loss and Return Loss of the event manually. Measuring the distance and loss between two points This section explains the procedures for measuring the distance and loss between two points, using...
  • Page 106 2 Basic Measurement Turn the rotary knob so that the cursor moves to the position where the measurement ends. Press the [F2] (MARKER 2) key in the MARKER menu display. Marker is displayed at the cursor position, and the loss (dB) and distance between Markers , and the loss per 1 km (dB/km) are displayed on the bottom of the screen.

  • Page 107: Measuring Return Loss

    2 Basic Measurement Measuring Return Loss This section explains the procedures for measuring the Return Loss of the position where the optical fiber cable is connected. In this section, the explanation starts from the screen display with the trace after equalization. Display the MARKER menu Press the [F1] (MARKER) key in TRACE mode.
  • Page 108 2 Basic Measurement Display the enlarged screen For the procedures for displaying an enlarged screen, refer to page 1-9 “Operations on the screen”. Mark the trace Turn the rotary knob so that the cursor moves to a position before the return point.

  • Page 109: Measuring Splice Loss (Four Point Method)

    2 Basic Measurement Measuring Splice Loss (Four point method) This section explains the procedure for measuring the Splice Loss of the optical fiber cable using the four point method. Two different measuring methods are available in the four point method: In the first method, set the Markers one by one and carry out the measurement.
  • Page 110 2 Basic Measurement Mark the positions Turn the rotary knob so that the cursor moves to the position where Marker 1 is to be. Press the [F1] (MARKER 1) key. Marker is displayed at the cursor position. Turn the rotary knob so that the cursor moves to the position where Marker 2 is to be.
  • Page 111 2 Basic Measurement The loss and the loss per 1 km vary depending on whether the approximation is set to LSA or TPA. Use the proper approximation (LSA or TPA) according to the trace. For outlines of LSA and TPA, refer to pages 2-25 and 2-26. Approximate line Loss Approximate line...
  • Page 112 2 Basic Measurement In the case of setting Markers in batches The procedures, in which Marker are set as a batch, and the Splice Loss is measured, are explained. The explanation starts from the screen display with the trace after equalization. Display the MARKER menu Press the [F1] (MARKER) key in TRACE mode.
  • Page 113 2 Basic Measurement Mark the positions Turn the rotary knob so that the cursor moves to the position where Marker 2 is to be. Press the [F2] (MARKER 2) key. Markers and Y2 are displayed at the cursor positions, and the measurement result is displayed on the bottom of the screen.
  • Page 114 2 Basic Measurement Measurement result display The calculation method for the measurement result, which is displayed on the bottom of the screen after four point method, is explained below. Distance Splice Loss: Return Loss: : 1.55 m SM WAVE LENGTH : 1 s Marker 1-2 Marker 2-3...

  • Page 115: Measuring Splice Loss (Six Point Method)

    2 Basic Measurement Measuring Splice Loss (Six point method) This section explains the procedure for measuring the Splice Loss of the optical fiber cable using the six point method. The explanation here starts from the screen display in which Makers and Y2 are marked to the trace.
  • Page 116 2 Basic Measurement Mark the positions Turn the rotary knob so that the cursor moves to the position where Marker Y1 is to be. Press the [F1] (MARKER Y1) key. Marker Y1 is displayed at the cursor position. Turn the rotary knob so that the cursor moves to the position where Marker Y3 is to be.
  • Page 117 2 Basic Measurement The loss and the loss per 1 km vary depending on whether the approximation is set to LSA or TPA. Use the proper approximation (LSA or TPA) according to the trace. For outlines of LSA and TPA, refer to pages 2-25 and 2-26. Approximate line Loss Approximate line...

  • Page 118: Distance : [A] Km Wave Length : 1.55 M Sm Pw : 1 S Ior : 1.48000

    2 Basic Measurement Measurement result display The calculation method for the measurement result, which is displayed on the bottom of the screen after six point method, is explained below. Distance Splice Loss: Return Loss: : 1.55 m SM WAVE LENGTH : 1 s Marker 1-2 Marker 2-3...

  • Page 119: Slope Fit Function

    2 Basic Measurement SLOPE FIT function When the optical fiber cable is measured, fine noises (a jagged trace line) are displayed. The straight line which is obtained by joining the Markers and thus equalizing the noise, is called SLOPE FIT. This SLOPE FIT is used to check that Marker position is set properly when measuring the Splice Loss using Markers.
  • Page 120 2 Basic Measurement Display the SLOPE FIT Press the [F4] (SLOPE FIT) key while Markers are displayed on the trace. An “*” is displayed close to the selected SLOPE FIT (ON) and the SLOPE FIT is displayed between the Markers. In addition, “SFT”...

  • Page 121: Cursor Link Function

    2 Basic Measurement CURSOR LINK function The CURSOR LINK function is a function in which all the markers displayed on the screen are fixed to the cursor and move with the cursor. This function is used to move all the markers with fixed distances between the markers, when markers are out of their positions.
  • Page 122 2 Basic Measurement Use CURSOR LINK Press the [F5] (CURSOR LINK) key in the ANALYSIS ASSISTANCE screen. An “*” is displayed close to the selected CURSOR LINK (ON) and all the markers are fixed to the cursor. In addition, “LNK” appears on the left of the screen. Turn the rotary knob so that the markers are moved to the correct position.

  • Page 123: Inputting Text Relating To The Measured Trace

    2 Basic Measurement 2.8 Inputting text relating to the measured trace 2.8 Inputting text relating to the measured trace 2.8 Inputting text relating to the measured trace 2.8 Inputting text relating to the measured trace COMMENT, CABLE ID, FIBER ID, ORIGINATING LCTN, TERMINATING LCTN, CABLE CODE and CURRENT DATA FLAG relating to the measured or recalled TRACE data are assigned and corrected via this instrument.
  • Page 124 2 Basic Measurement Assign text to the CABLE ID field Turn the rotary knob so that the CABLE ID field is selected. The selected CABLE ID field is displayed with its color inverted. When turning the rotary knob counterclockwise, the cursor (Inverted color block) moves downward, and vice versa, when turning the rotary knob clockwise, the cursor moves upward.
  • Page 125 2 Basic Measurement Select the CURRENT DATA FLAG Turn the rotary knob so that the CURRENT DATA FLAG field is selected. The selected CURRENT DATA FLAG field is displayed with its color inverted. Press the [ENTER] key when the CURRENT DATA FLAG field is selected. One of the selected CURRENT DATA FLAG field items is displayed with its color inverted.

  • Page 126: Printing The Data On The Screen

    2 Basic Measurement 2.9 Printing the data on the screen 2.9 Printing the data on the screen 2.9 Printing the data on the screen 2.9 Printing the data on the screen The displays (except for the Preview display and AVERAGE display) on the screen can always be printed out by pressing the [PRINT] key.
  • Page 127 2 Basic Measurement Printing sample When the print type (HORIZONTAL/VERTICAL/SCREEN) of the printer is changed using the EXPANSION menu in SETUP mode, the printed image will be changed. For the procedure for setting the print type, refer to page 6-30 “Selecting PRINT TYPE”.
  • Page 128 3 Inputting Text Chapter 3 Inputting Text 3.1 Inputting text ..........3-2 3.2 Using the soft keys........3-4 3.3 Using the USER DICTIONARY ....3-5...

  • Page 129: Chapter3 Inputting Text

    3 Inputting Text 3.1 Inputting text This section describes how to input text. An example is given here using the COMMENT field of the LABEL menu in TRACE mode. For details about the measured trace label, refer to page 2-70 “2.8 Inputting text relating to the measured trace”.

  • Page 130: Inputting Text

    3 Inputting Text Enter characters Move the cursor to the character to be entered by turning the rotary knob. The selected character is displayed with its color inverted. Press the [ENTER] key. The character is entered at the bottom of the input text box. Repeat procedures (1) and (2).

  • Page 131: Using The Soft Keys

    3 Inputting Text 3.2 Using the soft keys 3.2 Using the soft keys 3.2 Using the soft keys 3.2 Using the soft keys When the input characters are to be edited, use the soft keys. Soft keys used for the input text box Soft key Display Description...

  • Page 132: Using The User Dictionary

    3 Inputting Text 3.3 Using the USER DICTIONARY 3.3 Using the USER DICTIONARY 3.3 Using the USER DICTIONARY 3.3 Using the USER DICTIONARY If frequently used words are registered in the USER DICTIONARY, it makes character entry very easy. This section describes how to use the USER DICTIONARY function. Registering a word When a word is to be registered in the USER DICTIONARY, use the input text box to input the character.
  • Page 133 3 Inputting Text Display the USER DICTIONARY window After the characters have been input, press the [F5] (2nd FUNCTION) key. The soft keys on the 2nd FUNCTION screen become active. Press the [F5] (USER DICTIONARY) key again. The USER DICTIONARY window appears. Register a word CAUTION If the [F3] (WRITE) key is pressed after selecting a registered field, the word in...

  • Page 134: Retrieving A Registered Word

    3 Inputting Text Retrieving a registered word An example is given here using the COMMENT field of the LABEL menu in TRACE mode. For details about the measured trace label, refer to page 2-70 “2.8 Inputting text relating to the measured trace”. Display the input text box Select the desired “LABEL”...
  • Page 135 3 Inputting Text Retrieve the registered word Move the cursor to the desired word by turning the rotary knob. The selected word is displayed with its color inverted. Press the [F2] (READ) key. The word is retrieved and the input text box appears. After the word has been retrieved, it can be edited and corrected in the input text box.

  • Page 136: Clearing A Registered Word

    3 Inputting Text Clearing a registered word An example is given here using the COMMENT field of the LABEL menu in TRACE mode. For details about the measured trace label, refer to page 2-70 “2.8 Inputting text relating to the measured trace”. When all registered words are to be cleared Display the input text box Select the desired “LABEL”...
  • Page 137 3 Inputting Text When a specific word is to be cleared Display the input text box Select the desired “LABEL” item by turning the rotary knob. The selected item is displayed with its color inverted. Press the [ENTER] key while the item to be input is selected (color inverted).

  • Page 138: Chapter4 Storing And Recalling Of The Measured Data

    4 Storing and Recalling of the Measured Data Chapter 4 Storing and Recalling of the Measured Data 4.1 Storing the measured data ......4-2 4.2 Recalling the measured data ...... 4-7 4.3 Deleting saved data ........4-11 4.4 Printing out the saved data....... 4-16 4.5 Using the utility feature......

  • Page 139: Storing The Measured Data

    4 Storing and Recalling of the Measured Data 4.1 Storing the measured data 4.1 Storing the measured data 4.1 Storing the measured data 4.1 Storing the measured data This section describes how to save the measured data. For the procedure for displaying the trace on the screen, refer to page 2-30 “2.4 Measuring the trace”. Select FILE mode Press the [MODE] key while the trace is being displayed on the screen, then select FILE mode.
  • Page 140 4 Storing and Recalling of the Measured Data When files are to be sorted 1. Press the [F2] (FILE SORT) key. Each time the [F2] (FILE SORT) key is pressed, either “No.” or “USED” is selected, and the selection is indicated by an “*” mark. •...
  • Page 141 4 Storing and Recalling of the Measured Data Select a drive Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for “DRIVE” is displayed with its color inverted. If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 142 4 Storing and Recalling of the Measured Data Select a file type Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set item for “FILE TYPE” is displayed with its color inverted. .TRB (Standard) .SET (Setup File) .LST (Event List)
  • Page 143 4 Storing and Recalling of the Measured Data Save the data Turn the rotary knob and select a file in which to save the data, by inverting its color. “Unused File” indicates a file which has not been used yet. To change the page: •...

  • Page 144: Recalling The Measured Data

    4 Storing and Recalling of the Measured Data 4.2 Recalling the measured data 4.2 Recalling the measured data 4.2 Recalling the measured data 4.2 Recalling the measured data This section describes how to recall saved data. Select FILE mode Press the [MODE] key to select “FILE”. “FILE”...
  • Page 145 4 Storing and Recalling of the Measured Data Select the drive containing the data to be recalled Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for “DRIVE” is displayed with its color inverted. If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 146 4 Storing and Recalling of the Measured Data Select the data to be recalled by the file type Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set item for “FILE TYPE” is displayed with its color inverted. .TRB (Standard) .SET (Setup File) .LST (Event List)
  • Page 147 4 Storing and Recalling of the Measured Data Recall a particular data file Select the desired file by turning the rotary knob. The selected file is displayed with its color inverted. Press the [F1] (SELECT FILES) key. An “*” mark is displayed at the left of the selected file. Up to four files can be selected.

  • Page 148: Deleting Saved Data

    4 Storing and Recalling of the Measured Data 4.3 Deleting Deleting Deleting Deleting saved data saved data saved data saved data This section explains the procedures for deleting saved data. Select FILE mode Press the [MODE] key to select “FILE”. “FILE”...
  • Page 149 4 Storing and Recalling of the Measured Data Select the drive containing the data to be deleted Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for “DRIVE” is displayed with its color inverted. If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 150 4 Storing and Recalling of the Measured Data Select the data to be deleted by the file type Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set item for “FILE TYPE” is displayed with its color inverted. .TRB (Standard) .SET (Setup File) .LST (Event List)
  • Page 151 4 Storing and Recalling of the Measured Data Select the actual file to be deleted Select the desired file by turning the rotary knob. The selected file is displayed with its color inverted. Press the [F1] (SELECT FILES) key. An “*” mark is displayed at the left of the selected file. Up to 100 files can be selected.
  • Page 152 4 Storing and Recalling of the Measured Data Delete the data CAUTION If the [F5] (EXECUTE) key is pressed without selecting any file, all the files are deleted. Press the [F5] (EXCUTE) key. The delete confirmation window appears. Turn the rotary knob and select “YES”. When canceling the deletion, select “NO”...

  • Page 153: Printing Out The Saved Data

    4 Storing and Recalling of the Measured Data 4.4 Printing out the saved data 4.4 Printing out the saved data 4.4 Printing out the saved data 4.4 Printing out the saved data If a printer is connected to this instrument, the saved data can be printed out. This section explains the procedures for printing, using the optional printer unit.
  • Page 154 4 Storing and Recalling of the Measured Data Display the PRINT menu Press the [F4] (PRINT) key. The PRINT menu screen is displayed. When files are to be sorted 1. Press the [F2] (FILE SORT) key. Each time the [F2] (FILE SORT) key is pressed, “No.”, “LABEL” or “DATE” is selected, and the selection is indicated by an “*”...
  • Page 155 4 Storing and Recalling of the Measured Data Select the drive containing the desired data to be printed Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for “DRIVE” is displayed with its color inverted If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 156 4 Storing and Recalling of the Measured Data Select the data to be printed by the file type Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set item for “FILE TYPE” is displayed with its color inverted. .TRB (Standard) .SET (Setup File) .LST (Event List)
  • Page 157 4 Storing and Recalling of the Measured Data Select an actual file to be printed Select the desired file by turning the rotary knob. The selected file is displayed with its color inverted. Press the [F1] (SELECT FILES) key. An “*” mark is displayed at the left of the selected file. Up to 100 files can be selected.

  • Page 158: Using The Utility Feature

    4 Storing and Recalling of the Measured Data 4.5 Using the utility feature 4.5 Using the utility feature 4.5 Using the utility feature 4.5 Using the utility feature This section explains the procedures for using the utility features, such as formatting drives, making new directories, etc.
  • Page 159 4 Storing and Recalling of the Measured Data Select the drive Press the [F1] (FORMAT DRIVE) key. “DRIVE” is selected. Press the [ENTER] key. Only the set item for “DRIVE” is displayed with its color inverted If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 160 4 Storing and Recalling of the Measured Data Format the storage device Press the [F5] (EXCUTE) key. The format confirmation window is displayed. Turn the rotary knob and select “YES”. When canceling the format, select “NO” and press either the [ENTER] key. The screen will return to that in step 4.

  • Page 161: Copying The Data

    4 Storing and Recalling of the Measured Data Copying the data Display the COPY screen Press the [F2] (COPY) key in the UTILITY menu of File mode. The COPY screen is displayed. Switch to COPY FROM Ensure that “FROM” is displayed with the “*” mark beside it. Initially, “FROM”...
  • Page 162 4 Storing and Recalling of the Measured Data Select the drive containing the data to be copied Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for the drive is displayed with its color inverted. If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 163 4 Storing and Recalling of the Measured Data Select the file type to be copied Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set item for “FILE TYPE” is displayed with its color inverted. .TRB (Standard) .SET (Setup File) .LST (Event List)
  • Page 164 4 Storing and Recalling of the Measured Data Select an actual file to be copied Select the desired file to be copied by turning the rotary knob. The selected file is displayed with its color inverted. Press the [F1] (SELECT FILES) key. An “*”...
  • Page 165 4 Storing and Recalling of the Measured Data Switch to COPY TO Press the [F3] (COPY) key. “TO” is displayed with the “*” mark beside it. Select the drive to be copied to Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE”...
  • Page 166 4 Storing and Recalling of the Measured Data Select the directory to be copied to Select the “DIRECTORY” by turning the rotary knob. Press the [ENTER] key while “DIRECTORY” is selected (color inverted). The directory tree appears. Turn the rotary knob and select a directory. After the directory has been selected, press the [ENTER] key.

  • Page 167: Creating A New Directory

    4 Storing and Recalling of the Measured Data Creating a new directory Display the directory creation screen Press the [F3] (CREATE DIRECTORY) key in the UTILITY menu of FILE mode. The DIRECTORY creation screen is displayed. Select the desired drive in which to create a new directory Select the “DRIVE”...
  • Page 168 4 Storing and Recalling of the Measured Data Select the ‘mother’ directory in which to create a new directory Select the “DIRECTORY” by turning the rotary knob. Press the [ENTER] key while “DIRECTORY” is selected (color inverted). The directory tree appears. Turn the rotary knob and select a ‘mother’...
  • Page 169 4 Storing and Recalling of the Measured Data Enter the directory name. For the procedures for entering text, refer to page 3-2 “3.1 Inputting text”. The 2nd FUNCTION can not be used in the enter text box when creating a new directory.

  • Page 170: Deleting The Directory

    4 Storing and Recalling of the Measured Data Deleting the directory Display the directory delete screen Press the [F4] (DELETE DIRECTORY) key in the UTILITY menu of FILE mode. The directory delete screen is displayed. Select the drive containing the directory to be deleted Select the “DRIVE”...
  • Page 171 4 Storing and Recalling of the Measured Data Select the directory to be deleted Select the “DIRECTORY” by turning the rotary knob. Press the [ENTER] key while “DIRECTORY” is selected (color inverted). The directory tree appears. Turn the rotary knob and select a drive. After the drive has been selected, press the [ENTER] key.

  • Page 172: Chapter5 Helpful Information

    5 Helpful information Chapter 5 Helpful information 5.1 Comparing multiple traces ......5-2 5.2 Measuring the trace repeatedly....5-13 5.3 Using this instrument as a light source .. 5-26 5.4 Using this instrument as an OPT ..... 5-29...

  • Page 173: Comparing Multiple Traces

    5 Helpful information 5.1 Comparing multiple traces 5.1 Comparing multiple traces 5.1 Comparing multiple traces 5.1 Comparing multiple traces This section explains the procedures for analyzing and comparing each trace. Subtract and synthetic traces, which can be made by displaying multiple traces, are also explained. Basic comparison Recall multiple traces For the procedures for recalling the trace, refer to page 4-7 “4.2 Recalling the...
  • Page 174 5 Helpful information Moving the cursor from one trace to another Select TRACE mode Press the [MODE] key to select “TRACE”. “TRACE” under “MODE” is displayed with its color inverted. Display the MULTI TRACE menu Press the [F4] (MULTI TRACE) key. The MULTI TRACE menu is displayed.
  • Page 175 5 Helpful information Move the cursor to the other trace When moving the cursor to the next trace, press the [F1] (NEXT TRACE) key. When moving the cursor to the previous trace, press the [F2] (PREVIOUS TRACE) key. The file numbers and the label names of the traces on the screen, are displayed on the bottom right of the screen.
  • Page 176 5 Helpful information Changing the trace to enlarge/reduce Change the trace to enlarge/reduce If the data size, resolution and distance range are different, the “CHANGE SCALE” function for all traces can not be carried out. In this case, only the trace to which the cursor currently applies can be enlarged/reduced.

  • Page 177: Displaying A Subtract Trace Of Two Traces

    5 Helpful information Displaying a subtract trace of two traces When two or more traces are displayed on the screen, a subtract trace can be created by selecting 2 of these traces. This section explains the procedures for creating and analyzing a subtract trace. Recall multiple traces For the procedure for recalling the trace, refer to page 4-7 “4.2 Recalling the measured data”.
  • Page 178 5 Helpful information Changing the reference trace 1. Press the [F4] (CHANGE REF TRACE) key. Each time the [F4] (CHANGE REF TRACE) key is pressed, the selectable original trace is changed to the next in line, and a new subtract trace is created simultaneously. The original trace, which is currently an object trace, can be selected.
  • Page 179 5 Helpful information Measure the distance and loss Position the cursor at the place where the measurement will start by turning the rotary knob. Press the [F1] (MARKER A) key. Marker A is displayed at the cursor position, and Marker A distance information is also displayed on the bottom of the screen.

  • Page 180: Displaying A Synthetic Event List For Two Traces

    5 Helpful information Displaying a synthetic event list for two traces When two traces are displayed on the screen, event lists for the two traces can be synthesized. This section explains the procedures for making and analyzing a synthetic trace. Recall the two traces For the procedures for recalling the trace, refer to page 4-7 “4.2 Recalling the measured data”.
  • Page 181 5 Helpful information Display the event table of the synthetic trace Press the [F5] (2WAY TRACE) key while the MULTI TRACE menu under TRACE mode is selected. The synthetic trace event is searched automatically, and the Splice Loss, Return Loss, etc of each event are displayed on the event table.
  • Page 182 5 Helpful information Display the event with Markers Press the [F1] (VIEW EVENT) key. The automatically searched events are displayed with the event number. The “FAR Way Trace” is displayed by inverting left and right. The synthetic trace is created by using the “NEAR Way Trace” as the first trace and the “FAR Way Trace”...
  • Page 183 5 Helpful information Display other event information Press the [F1] (NEXT EVENT) key to display the next event information. When event “ ” is selected, if the [F1] key is pressed, event “ ” is selected and information for event “ ” is displayed. When event “...

  • Page 184: Measuring The Trace Repeatedly

    5 Helpful information 5.2 Measuring the trace repeatedly 5.2 Measuring the trace repeatedly 5.2 Measuring the trace repeatedly 5.2 Measuring the trace repeatedly This section explains the procedure for measuring the trace repeatedly. A repeated measurement has four different procedures as follows: •...
  • Page 185 5 Helpful information Set REPEAT MODE ON/OFF Press the [ENTER] key while the item in the REPEAT field is selected (color inverted). The selection box is displayed. Select “ON” by turning the rotary knob. Press either the [ENTER] key. The selected item in the REPEAT is displayed. 5-14...
  • Page 186 5 Helpful information Set AUTOMATIC SETUP ON/OFF Select the “AUTOMATIC SETUP” by turning the rotary knob. Press the [ENTER] key. The selection box is displayed. Select “ON” by turning the rotary knob. Press the [ENTER] key. The measuring condition is set automatically. When measuring the trace repeatedly, the distance range, pulse width and attenuator are set automatically.
  • Page 187 5 Helpful information Select the DRIVE containing the SOURCE FILE Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for “DRIVE” is displayed with its color inverted. If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 188 5 Helpful information Select the FILE TYPE of the SOURCE FILE Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set item for “FILE TYPE” is displayed with its color inverted. .TRB (Standard) .SET (Setup File) Select the desired FILE TYPE by turning the rotary knob.
  • Page 189 5 Helpful information Select the SOURCE FILE Turn the rotary knob to select the file starting position. The selected file is displayed with its color inverted. Press the [F1] (START FILE) key. An “*” mark is displayed on the left of the selected file. Turn the rotary knob to select the file stopping position.
  • Page 190 5 Helpful information Set the PRINT OUT type If the printer has not been connected, or an item other than “EXPANSION” has been selected in the PRINTER PORT setting of the “EXPANSION” menu under “SETUP” mode, the “PRINT OUT” setting can not be made. Ensure that the printer has been connected, and “EXPANSION”...
  • Page 191 5 Helpful information Set TRACE STORAGE (ON/OFF) Select the “STORAGE” by turning the rotary knob. Press the [ENTER] key. The selection box is displayed. Select the desired item by turning the rotary knob. Items in the TRACE STORAGE selection box Item Feature Trace is not stored.
  • Page 192 5 Helpful information Select the destination DRIVE for saving Select the “DRIVE” by turning the rotary knob. Press the [ENTER] key while “DRIVE” is selected (color inverted). Only the set item for “DRIVE” is displayed with its color inverted. If a memory card or a hard-disk card is not inserted in the PCMCIA SLOT, drives E and F are not displayed.
  • Page 193 5 Helpful information Set the destination FILE TYPE for saving Select the “FILE TYPE” by turning the rotary knob. Press the [ENTER] key while “FILE TYPE” is selected (color inverted). Only the set items in the “FILE TYPE” are displayed with its color inverted. .TRB (Standard) .LST (Event List) .BMP (Image)
  • Page 194 5 Helpful information Select the destination FILE for saving Turn the rotary knob to select the file to start saving. The selected FILE is displayed with its color inverted. A File indicated as “Unused File” is a file which is not in use. To change the page: •...
  • Page 195 5 Helpful information Set OPTICAL SW ON/OFF (Only when multiple optical fiber cables are to be measured) When the optical switch has not been connected, or an item other than “EXPANSION” has been selected in the OPTICAL SW type setting of the “EXPANSION” menu under “SETUP”...
  • Page 196 5 Helpful information Set MAX CHANNEL (Only when multiple optical fiber cables are to be measured) Select the “MAX CHANNEL” by turning the rotary knob. The “MAX CHANNEL” field is displayed with its color inverted. Press the [ENTER] key. The item can be set or changed. Change the numeric value by turning the rotary knob.

  • Page 197: Using This Instrument As A Light Source

    5 Helpful information 5.3 Using this instrument as a light source 5.3 Using this instrument as a light source 5.3 Using this instrument as a light source 5.3 Using this instrument as a light source The LD (Light source) of the optical unit can make CW and CHOP light emission. This section explains the procedure for using this instrument as a light source.
  • Page 198 5 Helpful information Set laser modulation frequency Press the [F2] (CW/270Hz/1kHz/2kHz) key. Each time the [F2] (CW/270Hz/1kHz/2kHz) key is pressed, an “*” mark is displayed beside one of the items in the following order: CW→270Ηz→1kHz→2kHz. Set OPT SW CHANNEL The setting can be carried out, only when an optical switch is used. The channel numbers vary depending on the optical switch in use.
  • Page 199 5 Helpful information Turn the LASER ON Press the [F1] (LASER) key. The LASER ON indication blinks and laser light is emitted. When the LIGHT SOURCE menu is closed, the laser light is automatically turned off. Press the [F1] (LASER) key again, or change the MODE to turn OFF the laser light. 5-28...

  • Page 200: Using This Instrument As An Opt

    5 Helpful information 5.4 Using 5.4 Using this instrument as an OPT 5.4 Using 5.4 Using this instrument as an OPT this instrument as an OPT this instrument as an OPT This instrument can be used as an Optical Power Meter (OPT) by installing the Optical Power Meter unit. This section explains the procedure for using this instrument as an Optical Power Meter.
  • Page 201 5 Helpful information Set WAVELENGTH Select the “WAVELENGTH” by turning the rotary knob. Press the [ENTER] key while “WAVELENGTH” is selected (color inverted). Only the setting item for WAVELENGTH is displayed with its color inverted. 850nm 1300nm 1310nm 1550nm 1625nm Select the desired item by turning the rotary knob.
  • Page 202 5 Helpful information Set AVERAGE Select the “AVERAGE” by turning the rotary knob. Press the [ENTER] key while “AVERAGE” is selected (color inverted). Only the set item for “AVERAGE” is displayed with its color inverted. Select the desired item by turning the rotary knob. After the item has been selected, press the [ENTER] key.
  • Page 203 5 Helpful information ZERO SET “ZERO SET” is the function by which the electrical regular noise element is removed from the inside of the optical power meter. This section explains the procedure for carrying out ZERO SET. Carry out ZERO SET when incoming light is blocked off. If the light is not sufficiently blocked off, ZERO SET can not be carried out.
  • Page 204 5 Helpful information Write HOLD DATA to memory Data can be written to memory while the POWER METER is being held. Select DATA HOLD Press the [F3] (DATA) key. An “*” mark is displayed beside HOLD and the data is hold. Display the MEMORY VIEW screen Press the [F5] (MEMORY VIEW) key.
  • Page 205 5 Helpful information Select the field to which the data is to be written Turn the rotary knob to select the desired field to which the data is to be written. The selected field number is displayed from memory with its color inverted. To delete specific data from memory: 1.
  • Page 206 5 Helpful information Saving the data in memory to a file The data in memory can be saved to a file. Display the FILE SAVE screen Press the [F5] (FILE SAVE) key while the MEMORY VIEW screen is being displayed. The FILE SAVE screen is displayed.
  • Page 207 5 Helpful information Select DIRECTORY Select the “DIRECTORY” by turning the rotary knob. Press the [ENTER] key while “DIRECTORY” is selected (color inverted). The directory tree appears. Select the desired DIRECTORY by turning the rotary knob. After the DIRECTORY has been selected, press the [ENTER] key. A FILE LIST of files in the selected drive saved with the file type “∗.CSV”...

  • Page 208: Chapter6 Setup

    6 Setup Chapter 6 Setup 6.1 GENERAL setting........6-2 6.2 DISPLAY setting ........6-10 6.3 INSTRUMENT setting......6-20 6.4 EXPANSION setting ......6-27...

  • Page 209: General Setting

    6 Setup 6.1 GENERAL setting 6.1 GENERAL setting 6.1 GENERAL setting 6.1 GENERAL setting This section explains the basic setting of this instrument related to general operation. Displaying the GENERAL menu This section explains the procedure for displaying the GENERAL menu. Each setting procedure explained on the page that follow, is accessed through the GENERAL menu.

  • Page 210: Setting Language

    6 Setup Setting LANGUAGE This section explains the procedure for setting the LANGUAGE to “ENGLISH/JAPANESE”. Display the LANGUAGE selection box Select the “LANGUAGE” by turning the rotary knob, while the GENERAL menu is being displayed. The LANGUAGE field is displayed with its color inverted. Press the [ENTER] key.

  • Page 211: Inputting Operator Name

    6 Setup Inputting OPERATOR NAME This section explains the procedure for inputting the OPERATOR NAME. Display the input text box Select the “NAME” field by turning the rotary knob, while the GENERAL menu is being displayed. The NAME field is displayed with its color inverted. Press the [ENTER] key.

  • Page 212: Setting Lockout

    6 Setup Setting LOCKOUT Use LOCKOUT, when the CONDITIONS under TRACE mode or the set values of SETUP mode need to be protected. It can be activated for the CONDITIONS menu under TRACE mode, and for the DISPLAY, INSTRUMENT, EXPANSION and REPEAT menus, under SETUP mode. Thereby, their set values are protected.
  • Page 213 6 Setup Press the [ENTER] key. The input text box is displayed again so that the LOCKOUT CODE can be checked. Repeat steps (3) and (4). Press the [ENTER] key. The LOCKOUT setting is completed. Be sure to enter the same code again. LOCKOUT will be activated when the same code is entered twice.

  • Page 214: Setting Beep (On/Off)

    6 Setup Setting BEEP (ON/OFF) This section explains the procedures, in which the BEEP, which alarms at incorrect operation, is set to ON/OFF. Display the BEEP selection box Select the “BEEP” by turning the rotary knob, while the GENERAL menu is being displayed.

  • Page 215: Setting Power Save

    6 Setup Setting POWER SAVE If no operation is carried out while the power is ON, the back light is automatically turned off (POWER SAVE setting). This section explains the procedures, by which the back light is turned off after a specified time. Select the POWER SAVE selection box Select the “POWER SAVE”...

  • Page 216: Setting Remote Command

    6 Setup Setting REMOTE COMMAND This section explains the procedure for setting the command system, when this instrument is connected to a personal computer. Display the REMOTE COMMAND selection box Select the “COMMAND SYSTEM” by turning the rotary knob, while the GENERAL menu is being displayed.

  • Page 217: Displaying The Display Menu

    6 Setup 6.2 DISPLAY setting 6.2 DISPLAY setting 6.2 DISPLAY setting 6.2 DISPLAY setting This section explains the settings related to the screen display. Displaying the DISPLAY menu This section explains the procedure for displaying the DISPLAY menu. Each setting procedure explained from the next page, is accessed through the DISPLAY menu. Select SETUP mode Press the [MODE] key to select “SETUP”.

  • Page 218: Setting Trace View

    6 Setup Setting TRACE VIEW Setting TRACE TYPE This section explains the procedure for setting the TRACE TYPE to LINE/DOT. Display the TRACE TYPE selection box Select the “TRACE TYPE” by turning the rotary knob, while the DISPLAY menu is being displayed. The TRACE TYPE field is displayed with its color inverted.
  • Page 219 6 Setup Setting CURSOR TYPE This section explains the procedure for setting the CURSOR TYPE to CROSS/LINE. Display the CURSOR TYPE selection box Select the “CURSOR TYPE” by turning the rotary knob, while the DISPLAY menu is being displayed. The CURSOR TYPE field is displayed with its color inverted. Press the [ENTER] key.
  • Page 220 6 Setup Setting GRID This section explains the procedure for setting the GRID to ON/OFF. Display the GRID selection box Select the “GRID” by turning the rotary knob, while the DISPLAY menu is being displayed. The GRID field is displayed with its color inverted. Press the [ENTER] key.
  • Page 221 6 Setup Setting GHOST CURSOR This section explains the procedure for setting the GHOST CURSOR to ON/OFF, for the purpose of checking the secondary reflection. Display the GHOST CURSOR selection box Select the “GHOST CURSOR” by turning the rotary knob, while the DISPLAY menu is being displayed.
  • Page 222 6 Setup Setting WAVEFORM This section explains the procedure for setting the WAVEFORM, by which the TRACE data sampling method is decided. Display the WAVEFORM selection box Select the “WAVEFORM” by turning the rotary knob, while the DISPLAY menu is being displayed. The WAVEFORM field is displayed with its color inverted.

  • Page 223: Setting Information

    6 Setup Setting INFORMATION Setting DISTANCE UNITS This section explains the procedure for setting the DISTANCE UNITS. Display the DISTANCE UNITS selection box Select the “DISTANCE UNITS” by turning the rotary knob, while the DISPLAY menu is being displayed. The DISTANCE UNITS field is displayed with its color inverted. Press the [ENTER] key.
  • Page 224 6 Setup Setting dB DIGITS This section explains the procedure for setting the dB DIGITS. The dB is used to indicate the Splice Loss and the Return Loss displayed in TRACE mode. Display the dB DIGITS selection box Select the “dB DIGITS” by turning the rotary knob, while the DISPLAY menu is being displayed.

  • Page 225: Setting Average

    6 Setup Setting AVERAGE This section explains the procedure for setting the AVERAGE TYPE to TIMES/TIME. Display the AVERAGE TYPE selection box Select the “AVERAGE TYPE” by turning the rotary knob, while the DISPLAY menu is being displayed. The AVERAGE TYPE field is displayed with its color inverted. Press the [ENTER] key.

  • Page 226: Setting The Basic Screen Color

    6 Setup Setting the basic screen COLOR This section explains the procedure for setting the basic screen COLOR. Display the COLOR TYPE selection box Select the “COLOR TYPE” by turning the rotary knob, while the DISPLAY menu is being displayed. The COLOR TYPE field is displayed with its color inverted.

  • Page 227: Instrument Setting

    6 Setup 6.3 INSTRUMENT setting 6.3 INSTRUMENT setting 6.3 INSTRUMENT setting 6.3 INSTRUMENT setting This section explains the settings related to the instrument. Displaying the INSTRUMENT menu This section explains the procedure for displaying the INSTRUMENT menu. Each setting procedure explained from the next page, is accessed through the INSTRUMENT menu.

  • Page 228: Setting Rs-232C

    6 Setup Setting RS-232C Setting BAUD RATE (communication speed) This section explains the procedures for setting the BAUD RATE when the RS-232C is used. Display the BAUD RATE selection box Select the “BAUD RATE” by turning the rotary knob, while the INSTRUMENT menu is being displayed.
  • Page 229 6 Setup Setting FLOW This section explains the procedures for setting the FLOW when the RS-232C is used. Display the FLOW selection box Select the “FLOW” by turning the rotary knob, while the INSTRUMENT menu is being displayed. The FLOW field is displayed with its color inverted. Press the [ENTER] key.

  • Page 230: Setting Date/Time

    6 Setup Setting DATE/TIME Setting DISPLAY TYPE This section explains the procedure for setting the DATE/TIME, displayed on the bottom right of the screen. Display the DISPLAY TYPE selection box Select the “DISPLAY TYPE” by turning the rotary knob, while the INSTRUMENT menu is being displayed.
  • Page 231 6 Setup Setting SYSTEM CLOCK This section explains the procedure for setting the SYSTEM CLOCK, displayed on the bottom right of the screen. Set the SYSTEM CLOCK Select the “SYSTEM CLOCK” by turning the rotary knob, while the INSTRUMENT menu is being displayed. The SYSTEM CLOCK is displayed with its color inverted.

  • Page 232: Setting Mouse

    6 Setup Setting MOUSE This section explains the procedure for setting the MOUSE (Optional). Setting the DOUBLE CLICK interval This section explains the procedures for setting the DOUBLE CLICK interval. Set the desired DOUBLE CLICK interval Select the “DOUBLE CLICK” by turning the rotary knob, while the INSTRUMENT menu is being displayed.
  • Page 233 6 Setup Setting the mouse MOVE speed This section explains the procedure for setting the mouse MOVE speed. Set the desired mouse MOVE Select the “MOVE” by turning the rotary knob, while the INSTRUMENT menu is being displayed. The MOVE field is displayed with its color inverted. Press the [ENTER] key.

  • Page 234: Expansion Setting

    6 Setup 6.4 EXPANSION setting 6.4 EXPANSION setting 6.4 EXPANSION setting 6.4 EXPANSION setting This section explains setting of the expansion units. Displaying the EXPANSION menu This section explains the procedure for displaying the EXPANSION menu. Each setting procedure explained on the pages that follow, is accessed through the EXPANSION menu.

  • Page 235: Setting Printer

    6 Setup Setting PRINTER This section explains the procedure for setting the PRINTER (optional). Setting PRINTER PORT This section explains the procedure for setting the PRINTER PORT. Though the printer port is automatically recognized at start up, it can be set manually. Display the PORT selection box Select the “PORT”...
  • Page 236 6 Setup Setting EXTERNAL PRINTER This section explains the procedure for setting the EXTERNAL PRINTER. The external printer can be selected only when the printer port is set to “RS-232C”. Display the EXTERNAL PRINTER selection box Select the “EXTERNAL PRINTER” by turning the rotary knob, while the EXPANSION menu is being displayed.
  • Page 237 6 Setup Setting PRINT TYPE This section explains the procedure for setting the PRINT TYPE by which the printer outputs the data. Display the PRINT TYPE selection box Select the “PRINT TYPE” by turning the rotary knob, while the EXPANSION menu is being displayed.

  • Page 238: Setting Optical Sw

    6 Setup Setting OPTICAL SW This section explains the procedure for setting the OPTICAL SW (optional). Setting OPTICAL SW type This section explains the procedure for setting the OPTICAL SW type. Though the optical switch type is automatically recognized at start up, it can be set manually.
  • Page 239 6 Setup Setting GP-IB ADDRESS This section explains the procedure for setting the GP-IB ADDRESS of the external OPTICAL SW which is connected to the instrument via the GP-IB unit. The GP-IB address of the external optical switch can be set only when “OPTICAL SW” is set to “EXTERNAL SW”.
  • Page 240 6 Setup Setting UNNSED CHANNEL This section explains the procedure for setting whether the OPTICAL SW channel is used or unused. Display either the USED or the UNUSED CHANNEL Select the “UNUSED CHANNEL” by turning the rotary knob, while the EXPANSION menu is being displayed.

  • Page 241: Setting Gp-Ib Address

    6 Setup Setting GP-IB ADDRESS This section explains the procedure for setting the GP-IB ADDRESS of the instrument. Setting GP-IB ADDRESS Select the “GP-IB ADDRESS” by tuning the rotary knob, while the EXPANSION menu is being displayed. The GP-IB ADDRESS field is displayed with its color inverted. Press the [ENTER] key.

  • Page 242: Chapter7 Appendix

    7 Appendix Chapter 7 Appendix 7.1 When a problem occurs ......7-2 7.2 Upgrading the software....... 7-5 7.3 Using optional items ........7-8 7.4 Operating the instrument using the PC... 7-24 7.5 Terminology ..........7-58 7.6 Specifications ..........7-66...

  • Page 243: When A Problem Occurs

    7 Appendix 7.1 When a problem occurs 7.1 When a problem occurs 7.1 When a problem occurs 7.1 When a problem occurs If there is any doubt that an error has occurred If there is any doubt that an error has occurred, check the instrument thoroughly. A simple action may resolve the problem.
  • Page 244 7 Appendix Symptom Check item Reference ①Has the optical fiber been connected Measurement cannot Page 2-3 be carried out. correctly? ②Is the optical fiber cable connector dirty? Page 1-21 ①Has the printer been connected securely to the The data cannot be Page 7-8 printed out.

  • Page 245: If The Problem Persists

    7 Appendix If the problem persists If the cause cannot be detected or if the problem cannot be cleared, contact the dealer from whom you made the purchase, or our business office which is given at the end of this manual. In this case, prepare the following information for the service personnel.

  • Page 246: Upgrading The Software

    7 Appendix 7.2 Upgrading the software 7.2 Upgrading the software 7.2 Upgrading the software 7.2 Upgrading the software When a new unit is supplied or the function is improved, a floppy disk containing new software may be provided. Depending on the software type, the main disk (FD No.1) or the sub disk (FD No.2) is used. Upgrade the instrument software according to the following procedures.
  • Page 247 7 Appendix Press the [F5] (UTILITY) key. The UTILITY menu is displayed. If “FD 1.44M(A:) ” is displayed in the DRIVE field, “VERSION UP” is displayed in the [F5] key field. If “VERSION UP” is not displayed in the [F5] key field, check that “FD 1.44M(A:)” is displayed in the DRIVE field.
  • Page 248 7 Appendix Install the sub disk into the instrument Insert the sub disk into the FD drive. Sub disk T I M IN G K S T T /S I N T Press the [ENTER] key. Installation of the sub disk starts. If the sub-disk is not inserted or the [ESC] key is pressed, the upgrade stops and then the operation stops.

  • Page 249: Using Optional Items

    7 Appendix 7.3 Using optional items 7.3 Using optional items 7.3 Using optional items 7.3 Using optional items Installing and removing the expansion unit This instrument has two expansion units: the printer unit, and the optical switch unit. This section explains the procedure for installing and removing the expansion units, using the printer unit as an example.
  • Page 250 7 Appendix Removing Turn off the power of the instrument For the procedure for turning off the power, refer to page 1-17 “Turning off the power”. If an item is installed or removed without turning off the power switch, the instrument may malfunction or be damaged.

  • Page 251: Setting A Roll Of Paper

    7 Appendix Setting a roll of paper Turn off the power of the instrument For the procedure for turning off the power, refer to page 1-17 “Turning off the power”. If an item is installed or removed without turning off the power switch, the instrument may malfunction or be damaged.
  • Page 252 7 Appendix Set the new roll of paper Set the new roll of paper. Release the lock-knob of the paper feed roller. Insert the front end of the paper into the clearance for the paper feed roller, and turn the knob clockwise. The front end of the inserted paper is fed by turning the knob.

  • Page 253: Installing And Removing The Sub Unit

    7 Appendix Installing and removing the sub unit This instrument has three sub units: the optical power meter, the visual light source unit, and the GP-IB unit. This section explains the procedure for installing and removing the sub units, using the visual light source unit as an example.
  • Page 254 7 Appendix When the GP-IB unit has been installed Turn on the power of the instrument. For the procedure for turning on the power, refer to page 1-15 “Turning on the power”. Set the GP-IB address in the EXPANSION menu of SETUP mode. For the procedure for setting the GP-IB address, refer to page 6-34 “Setting GP-IB ADDRESS”.

  • Page 255: Installing The External Printer

    7 Appendix Installing the external printer The data from this instrument can be printed out by connecting an external printer. This section explains the procedure for connecting an external printer. Turn off the power of the instrument For the procedure for turning off the power, refer to page 1-17 “Turning off the power”.
  • Page 256 7 Appendix Set the printer Set the baud rate in the INSTRUMENT menu of SETUP mode to the printer setting. For the procedure for setting the baud rate, refer to page 6-21 “Setting RS-232C”. Make sure that the printer port is set to “RS-232C” in the INSTRUMENT menu of SETUP mode.
  • Page 257 7 Appendix Setting the dip switches Settings for the dip switches when the DPU412 printer is being used, are described below. CAUTION Set the dip switches after the printer power has been turned off. The equipment may be damaged. Dip switch 1 Dip switch 2 SW1 2 SW1 2...

  • Page 258: Connecting The Optical Channel Selector

    7 Appendix Connecting the optical channel selector If the optional GP-IB unit is installed in this instrument, the optical channel selector which is sold individually can be connected. This section explains the procedure for connecting the optical channel selector. For the procedure for installing the GP-IB unit, refer to page 7-12 “Installing and removing the sub unit”.
  • Page 259 7 Appendix Turn on the power of the instrument For the procedure for turning on the power, refer to page 1-15 “Turning on the power”. Set the optical channel selector Set the optical channel selector in the EXPANSION menu of SETUP mode. For the procedure for setting the optical channel, refer to page 6-31 “Setting OPTICAL SW”.

  • Page 260: Using The Mouse

    7 Appendix Using the mouse This instrument can be operated with an optional mouse connected. This section explains the procedure for connecting and using the mouse. Turn off the power of the instrument For the procedure for turning off the power, refer to page 1-17 “Turning off the power”.
  • Page 261 7 Appendix Use the mouse Even with the mouse connected, normal operation of this instrument can also be carried out using the keys and rotary knob. Operation of each mode and menu Left-click a mode key or function key on the screen to execute the same operation as is executed when the corresponding mode key or function key is pressed.

  • Page 262: Using The Keyboard

    7 Appendix Using the keyboard Text can be entered in a label by using the keyboard, when an optional keyboard is installed. This section explains the procedure for connecting and using the keyboard. Turn off the power of the instrument For the procedure for turning off the power, refer to page 1-17 “Turning off the power”.

  • Page 263: Using The Ic Memory Card/Hard Disk Card

    7 Appendix Using the IC memory card/hard disk card A large quantity of measured data can be stored and recalled using the optional IC memory card or the hard disk card. This section explains the procedure for installing and removing cards, using the hard disk card as an example.
  • Page 264 7 Appendix Turn on the power of the instrument For the procedure for turning on the power, refer to page 1-15 “Turning on the power”. If a card has been inserted into the PCMCIA slot, it is automatically recognized when the instrument is started.

  • Page 265: Operating The Instrument Using The Pc

    7 Appendix 7.4 Operating the instrument using the PC 7.4 Operating the instrument using the PC 7.4 Operating the instrument using the PC 7.4 Operating the instrument using the PC The serial connector (RS-232C interface) is standard equipment with this instrument. When the instrument is connected to a personal computer (IBM PC/AT compatible computer), the instrument can be operated by entering commands via the personal computer.
  • Page 266 7 Appendix Turn on the power Turn on the power of the instrument. For the procedure for turning on the power, refer to page 1-15 “Turning on the power”. Turn on the power of the personal computer. Set RS-232C For the procedure for setting the RS-232C baud rate and flow control, refer to page 6-21 “Setting RS-232C”.
  • Page 267 7 Appendix When the command input screen of hyper terminal is displayed, the instrument screen is displayed in remote mode. If this remote screen is displayed, key operations via the instrument are invalid. Canceling the remote screen: Press the [F5](LOCAL) key to cancel the remote screen and validate key operations via the instrument.

  • Page 268: Connecting The Instrument To The Pc (Gp-Ib Cable)

    7 Appendix Connecting the instrument to the PC (GP-IB cable) This section explains the GP-IB interface function, and the procedure for connecting this instrument to a personal computer using a GP-IB cable. GP-IB Code Feature All functions of source handshake All functions of acceptor handshake Basic talker function Serial poll function...
  • Page 269 7 Appendix (5) Program codes Several program codes can be sent in connected form by using “,” for connection. However, the receive buffer capacity of this equipment is 512 bytes. The Optical Power Meter cannot control in GP-IB. Connect the GP-IB cable Turn off the power Turn off the power of the instrument, and all the devices to be connected.
  • Page 270 7 Appendix Command list Control Request Function command command Start/stop of OTDR measurement Current number of equalizations TIMR Cursor position X-axis (horizontal) scale (During REALTIME) X-axis (horizontal) scale HSPR (Other than REALTIME) Resolution RESR Y-axis (vertical) scale X-axis (horizontal) shift HPOS HPOSR Distance between the reference point and display start point...
  • Page 271 7 Appendix Control Request Function command command Auto search Next event Previous event Insertion of event Deletion of event Event marker setting Event auxiliary marker setting Acquisition of event data Event note 6-10 Printing of the event list 6-11 Span IOR setting SIORS SIORSR 6-12...
  • Page 272 7 Appendix Control Request Function command command 15-2 Operator setting 15-3 Beep setting BEEP BEEPR 16-1 Trace type TRCR Cursor type 16-2 CSRR Ghost cursor 16-3 Grid 16-4 Waveform DOTR 16-5 Distance units 16-6 dB digit FIGR 16-7 Average type (number of equalizations/equalization time) AVDR 17-1 PCMCIA slot1...
  • Page 273 7 Appendix Control commands Device message Function Explanation Header Num. field Start/stop of OTDR Starts or stops the OTDR measurement. m = 0: Measurement stop measurement 1: Preview start 2: Equalization start(Continue) 3: Equalization start(New) *Ver2.00 or more Current number of equalizations No control command is available.
  • Page 274 7 Appendix Device message Function Explanation Header Num. field Acquisition of various trace 1-11 No control command is available. information Initialization of the display scale 1-12 Initializes the display scale. Printing of the displayed screen Prints the displayed screen. 1-13 * Printing is interrupted if printing is being carried out.
  • Page 275 7 Appendix Device message Function Explanation Header Num. field Sub No. Assigns the Sub No. *Ver2.00 or more m,n,o m: Start Label No. = 001 to 999 n = 0: OFF (o=0) 4: e : a (o≠0) 5: f 1: b 6: g 2: c 7: h...
  • Page 276 7 Appendix Device message Function Explanation Header Num. field Attenuation Selects an attenuation from among: Return value m m = 0: 0.00 dB 11: 13.75 dB 1: 1.25 dB 12: 15.00 dB 2: 2.50 dB 13: 16.25 dB 3: 3.75 dB 14: 17.50 dB 4: 5.00 dB 15: 18.75 dB...
  • Page 277 7 Appendix Device message Function Explanation Header Num. field Deletion of event Deletes the event at the cursor position. Moves event marker m to the cursor position. Event marker setting m = 1, 2 or 3 Event auxiliary marker setting Moves event marker Y2 to the cursor position.
  • Page 278 7 Appendix Device message Function Explanation Header Num. field File list printing Prints the file list in the drive selected from among: m, n m: Drive m = 0: FD 1: － 2: － 3: PCMCIA1 4: PCMCIA2 n: Directory Designation of multiple traces Specifies multiple traces.
  • Page 279 7 Appendix Device message Function Explanation Header Num. field Directory creation Creates a directory in one of the following drives: 12-5 m, n m = 0: FD 1: － 2: － 3: PCMCIA1 4: PCMCIA2 n: Directory name Enter a full pathname for layering. Directory deletion Deletes the directory.
  • Page 280 7 Appendix Device message Function Explanation Header Num. field Trace type Selects one of the following trace display methods: 16-1 m = 0: DOT 1: LINE Cursor type Selects the cursor display method from among: 16-2 m = 0: ＋ CROSS (Ghost cursor OFF) Ghost cursor 1: ｜...
  • Page 281 7 Appendix Device message Function Explanation Header Num. field Selects an external printer from among: m = 0: ESC/P *Ver2.00 or more 1: LIPS *Ver2.00 or more 2: － 3: － External printer setting 18-2 4: PCL *Ver2.00 or more 5: －...
  • Page 282 7 Appendix Device message Function Explanation Header Num. field Setting of the file to be saved Sets the file save setting and type as follows: 19-6 m, n, o, p m: Drive m = 0: FD 3: PCMCIA1 1: － 2: －...
  • Page 283 7 Appendix Request commands Device message Function Explanation Header Num. field Start/stop of OTDR measurement Requests the OTDR measuring condition from among: Return value m m = 0: Stop 1: Previewing 2: Equalizing (Total calculation) 3: Equalizing (Calculation by division) Current number of equalizations Requests the current number of equalizations.
  • Page 284 7 Appendix Device message Function Explanation Header Num. field Y-axis (vertical) scale Requests a Y-axis scale for displaying the screen. Return value m m = 0: 5 dB/div 1: 2 dB/div 2: 1 dB/div 3: 0.5 dB/div 4: 0.2 dB/div 5: 7.5 dB/div X-axis (horizontal) shift Requests the display start point on the screen.
  • Page 285 7 Appendix Device message Function Explanation Header Num. field Cable ID Requests the cable ID. LCIDR Return value m m = XXX · · ·X Maximum of 36 characters (left justification) Fiber ID Requests the fiber ID. LFIDR Return value m m = XXX ·...
  • Page 286 7 Appendix Device message Function Explanation Header Num. field Automatic setup Requests an automatic measuring condition. ASUR Return value m m = 0: OFF 1: AUTO RANGE 2: AUTO ATT 3: ONE BUTTON 4: AUTO SEACH *Ver2.00 or more Distance range Requests a distance range.
  • Page 287 7 Appendix Device message Function Explanation Header Num. field IOR (Index of refraction) Requests the IOR for the currently specified wavelength. 4-13 IORR m = 1.00000 - 1.99999 0.00001 Back scattered light Requests a back scattered light. 4-14 m = 0: 1st wavelength of the unit (RLR) 1: 2nd wavelength of the unit 2: 3rd wavelength of the unit...
  • Page 288 7 Appendix Device message Function Explanation Header Num. field Transmission of auto searched Requests the auto searched result. 6-16 SPDR For the return value, refer to page 7-55. result Span start point setting Requests the span starting point. 6-17 SSPOSR Return value m m = SXXXX.XXXXXTT Numerical field containing a sign...
  • Page 289 7 Appendix Device message Function Explanation Header Num. field Number of traces which can be Requests the number of traces which can be recorded. m, n recorded m = 0: FD 1: － 2: － 3: PCMCIA1 4: PCMCIA2 n = 0: .TRB 4: .TIF 1: .SCR 5: .BMP...
  • Page 290 7 Appendix Device message Function Explanation Header Num. field Copy 12-4 No request command is available. Directory creation No request command is available. 12-5 Directory deletion No request command is available. 12-6 Storage medium condition Requests the currently specified storage medium status. 12-7 FERR Return value m...
  • Page 291 7 Appendix Device message Function Explanation Header Num. field Number of equalizations Requests the number of equalizations of the optical power 14-6 PMAVGR meter. Return value m m = 0: No equalization 1: 10 times 2: 100 times ZERO SET result Requests the ZERO SET result.
  • Page 292 7 Appendix Device message Function Explanation Header Num. field PCMCIA slot1 Requests PCMCIA slot1 status. 17-1 PCMAR Return value m m = 0: OFF 1: CARD 2: － 3: － PCMCIA slot2 Requests PCMCIA slot2 status. 17-2 PCMBR Return value m m = 0: OFF 1: CARD 2: －...
  • Page 293 7 Appendix Device message Function Explanation Header Num. field Printer port Requests the set printer port. 18-1 PROR Return value m m = 0: Expansion unit 1: Centronics *Ver2.00 or more 2: RS-232C 3: － 4: － External printer setting Requests the set external printer.
  • Page 294 7 Appendix Device message Function Explanation Header Num. field Source file setting Requests a source file. 19-3 ASFR Return value m, n, o, p and q m: Specifies a drive m = 0: FD 3: PCMCIA1 1: － 4: PCMCIA2 2: －...
  • Page 295 7 Appendix Device message Function Explanation Header Num. field Acquisition of file size Requests files specified by FDA, DIR and FF to be 20-6 FILESR indicated. Return value m m = XXXXX The unit is in dB. Acquisition of files Requests files specified by FDA, DIR and FF to be 20-7 FILER...
  • Page 296 7 Appendix Format of the return value This format is created by dividing the return value for each item using the delimiters. The GP-IB: Created by dividing the return value for each item using the delimiters (CR and LF), and outputting the items one after another.

  • Page 297: Sample Program(Gp-Ib)

    The company name, main body model (00000000), unit type (00000000), HMI software version, and SUB software version are separated by a ”，” and output. Sample program (GP-IB) This section explains a sample program . Equipment HP9836 controller AQ7250 mini-OTDR address:21 Sample program 10 ABORT 7 20 OUTPUT 721;”R3” 30 OUTPUT 721;”RR” 40 ENTER 721;A$...

  • Page 298: Control Command Input Example(Rs-232C)

    2 or more seconds. Device (instrument) check Input : IDER Enter (Acquires the instrument information) Return value : Ando Electric Co., LTD,AQ7250(********),AQ725X(********),HMI Ver.1.00,SUB Ver.1.00 Measuring configuration Input : LAM0 Enter (Wavelength 1.31um)

  • Page 299: Terminology

    7 Appendix 7.5 Terminology 7.5 Terminology 7.5 Terminology 7.5 Terminology Attenuation Deadzone Indicates the distance between the leading point of the reflected trace where the return loss is 40dB, and the point where the back scattered light is within ±0.5dB of the normal level. The value depends on the measured pulse width.
  • Page 300 7 Appendix Distance resolution Refer to “Space resolution”. Distance range Indicates the distance which can be displayed via this instrument. Select a distance range longer than the fiber length to be measured. The longer the distance range, the longer the measuring time. Near end Indicates the connecting point of this instrument and the optical fiber cable or its vicinity.
  • Page 301 7 Appendix Fresnel reflection If two continuous reflection points exist, the second reflection point can be identified by this distance. Definition A reflection point of –30 [dB] should not be saturated due to the return loss. This represents the distance between the peak and the point for 1.5 [dB] lower than the peak. The standard value represents the distance when the IOR is approx.
  • Page 302 7 Appendix Back scattered light Scattering, called Rayleigh scattering, develops with the light propagating in the optical fiber due to minute fluctuations in the IOR in the fiber. A part of the scattered light returns to the incidence end. This minute light is called the back scattered light. When 1.31 [µm] single mode fibers are used, the standard back scattered light is approx.
  • Page 303 7 Appendix Connecting point Indicates the fusion connection of optical fibers, or the plug to plug connection using the connector (mechanical connection). Dynamic range Represents the level difference between the fiber end connected to the instrument, and the noise level (RMS). The noise level (RMS) is 2.6dB lower than the noise peak. Dynamic range (SNR=1) Noise peak Noise level (RMS)

  • Page 304: Return Loss

    7 Appendix Secondary reflection If a large Fresnel reflection occurs, the reflection of the point may return again and some smaller reflections will also be passed along through the fiber. Instrument First reflection Second reflection Distance L Distance L Secondary reflection Two Point Approximate Calculates the loss between two points by using the level difference of the setting points.
  • Page 305 7 Appendix Pulse width Indicates the width of the optical pulse sent from this instrument. Normally, it is regulated in the half-value width. File Indicates the media in which the traces and the measurement conditions of this instrument are stored. Media includes floppy disks and PCMCIA card. Filter Digital processing of the trace improves S/N.
  • Page 306 7 Appendix Equalization This instrument can detect faint signals mixed with noise. Thereby, it can improve the S/N (signal/noise) ratio by calculating and equalizing the trace. This process is equalization. Reading resolution Refer to the sampling resolution. List When the AUTO SEARCH function of the connection points is executed via this instrument, the lists of the splice loss, the distance to the point and the return loss are displayed.

  • Page 307: Specifications

    7 Appendix 7.6 Specifications 7.6 Specifications 7.6 Specifications 7.6 Specifications Main body 7.2 inch color LCD (640 × 480) Display LCD display X-axis Resolution Sampling resolution: Minimum 50 cm (NOTE 1) Sampling data number Maximum 20,000 points ±(5.0 × 10 ×...

  • Page 308: Optical Unit

    7 Appendix Optical unit Model type AQ7254 AQ7255 AQ7259 Product name Single mode fiber unit Multi mode fiber unit Measured wave length 1.31/1.55±0.03 1.31/1.55±0.025 0.85/1.30±0.03 (µm) SM (10/125 µm) GI (50/125 µm, Measuring fiber 62.5/125 µm) (NOTE 1) (NOTE 2) Distance range (km) 2, 5, 10, 20, 40, 80, 160, 240 2, 5, 10, 20, 40, 80,...
  • Page 309 7 Appendix Optical unit Model type AQ7254B AQ7255B AQ7256B Product name Single mode fiber unit Measured wave length 1.31/1.55±0.03 1.31/1.55±0.025 1.31/1.55/1.625±0.025 (µm) SM (10/125 µm) Measuring fiber (NOTE 1) Distance range (km) 2, 5, 10, 20, 40, 80, 160, 240 (NOTE 2) 10n, 20 n, 100 n, 200 n, 500 n, 1 µ, 4 µ, 10 µ, 20 µ...

  • Page 310: Other Units

    ● Hard carrying case ● AQ7931B OTDR Emulation Software Data can be read on a PC from the floppy disk in which the measured data by AQ7250 is recorded, and the trace can be analyzed. Reports can be created easily using the report-creating function.
  • Page 311 7 Appendix 7-70...
  • Page 312 8 Additional functions Chapter 8 Additional functions 8.1 Registering the event ........8-2 8.2 Correcting the return loss......8-4 8.3 Making the USER DICTIONARY file ... 8-5 8.4 Setting CONDITIONS ........8-7 8.5 The label number is Auto Increment..8-10 8.6 Connect the external printer.....

  • Page 313: Registering The Event

    8 Additional functions 8.1 Registering the event 8.1 Registering the event 8.1 Registering the event 8.1 Registering the event This section explains the procedure for registering the event using the event table, and how to use the registered event. This corresponds since software version Ver1.25. For the procedure for displaying the event table, refer to page 2-37 "2.6 Analyzing the trace automatically".
  • Page 314 8 Additional functions Using the registered events This section explains how to use the registered events. Since one of the most effective usage examples is the case in which multiple optical fiber cables are measured under the same measurement condition, this is the example which is used. Register the events Measure the first optical fiber cable and then execute AUTO SEARCH.

  • Page 315: Correcting The Return Loss

    8 Additional functions 8.2 Correcting the return loss 8.2 Correcting the return loss 8.2 Correcting the return loss 8.2 Correcting the return loss This section explains the procedure for correcting the return loss using the event table. This corresponds since software version Ver1.25. For the procedure for displaying the event table, refer to page 2-37 "2.6 Analyzing the trace automatically".

  • Page 316: Making The User Dictionary File

    8 Additional functions 8.3 Making the 8.3 Making the USER DICTIONARY file 8.3 Making the 8.3 Making the USER DICTIONARY file USER DICTIONARY file USER DICTIONARY file This section explains the procedures for converting the USER DICTIONARY to a text file, and for incorporating a text file into the USER DICTIONARY.
  • Page 317 000.TXT to 999.TXT Example LABEL, USER DICTIONARY text file CRLF 00,TOKYOCRLF 01,Shin YOKOHAMACRLF 02,ODAWARACRLF 03,ATAMICRLF 04,MISHIMACRLF 05,Shin FUJICRLF 06,SHIZUOKACRLF 07,KAKEGAWACRLF 08,HAMAMATSUCRLF 09,TOYOHASHICRLF 10,MIKAWA ANJYOCRLF 11,NAGOYACRLF 12,GIFU HASHIMACRLF 13,MAIBARACRLF 14,KYOTOCRLF 15,Shin OSAKACRLF 16,ANDO ELECTRIC CO.,LTD.CRLF 17,AQ7250 mini - OTDRCRLF 18,KAMATA,Ota-Ku,TokyoCRLF 19,WASHIZU,Kosai-Si ShizuokaCRLF...

  • Page 318: Setting Conditions

    8 Additional functions 8.4 Setting CONDITIONS 8.4 Setting CONDITIONS 8.4 Setting CONDITIONS 8.4 Setting CONDITIONS This section explains an additional function of the measurement condition. This corresponds since software version Ver2.00. Setting CONTINUE AVG. This section explained the method of continuing the processing of the equalization of the trace. Set the instrument to TRACE mode Press the [MODE] key to select TRACE.
  • Page 319 8 Additional functions Select the “CONTINUE AVG.” Select the “CONTINUE AVG.” by turning the rotary knob while the CONDITIONS menu is being displayed. The CONTINUE AVG. is displayed with its color inverted. Set the continue average Press the [ENTER] key with “CONTINUE AVG.” selected (color inverted). Only the CONTINUE AVG.
  • Page 320 8 Additional functions Setting AUTO SEARCH This item describes how to set the measurement distance for the optical fiber cable. Select “AUTO SEARCH” Select the “AUTO SEARCH” by turning the rotary knob while the CONDITIONS menu is being displayed. The AUTO SEARCH is displayed with its color inverted. AUTO RANGE AUTO ATT ONE BUTTON...

  • Page 321: The Label Number Is Auto Increment

    8 Additional functions 8.5 The label number is Auto Increment 8.5 The label number is Auto Increment 8.5 The label number is Auto Increment 8.5 The label number is Auto Increment This section explains the proceduress for Auto Increment of the label number. This corresponds since software version Ver2.00.
  • Page 322 8 Additional functions Select the desired Auto Increment Select the “Auto Increment” by turning the rotary knob. Press the [ENTER] key while “Auto Increment” is selected(color inverted). The selection box is displayed. Auto Increment items are as follows: Item Function The increment of the label number is carried out at every measurement, and a label number is displayed on the end of a label.
  • Page 323 8 Additional functions Select the desired Start Label No. Select the “Start Label No.” by turning the rotary knob. Press the [ENTER] key while “Start Label No.” is selected(color inverted). Only the Start Label No. item is displayed with its color inverted. Start Label No.

  • Page 324: Connect The External Printer

    8 Additional functions 8.6 Connect the external printer 8.6 Connect the external printer 8.6 Connect the external printer 8.6 Connect the external printer The data from this instrument can be printer out by connecting an externalprinter. This corresponds since software version Ver2.00. Using the Centronics unit This section explains the procedure for connecting and using the Centronics unit.
  • Page 325 8 Additional functions Set the printer Make sure that the printer port is set to “CENTRONICS” in the INSTRUMENT menu of SETUP mode. Change the EXTERNAL PRINTER field to the connected external printer type in the INSTRUMENT menu of SETUP mode. Select the desired PRINT TYPE in the INSTRUMENT menu of SET UP menu.

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