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HST-3000 Copper Testing User’s Guide Communications Test and Measurement Solutions One Milestone Center Court Germantown, Maryland 20876-7100 USA Toll Free 1-855-ASK-JDSU (1-855-275-5378) Tel +1-240-404-2999 Fax +1-240-404-2195 www.jdsu.com...
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Government purposes only. Patents This product is covered by the following patent(s): (6,653,844 B2). Trademarks JDS Uniphase, JDSU, and HST-3000 are trademarks or reg- istered trademarks of JDS Uniphase Corporation in the United States and/or other countries. Specifications, terms, and conditions are subject to change without notice.
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JDSU could void the user's authority to operate the equipment. Industry Canada This Class B digital apparatus complies with Canadian Requirements ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. HST-3000 Copper Testing User’s Guide...
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Instructions for returning waste equipment and batteries to JDSU can be found in the Environmental section of JDSU’s web site at www.jdsu.com. If you have questions concerning disposal of your equipment or batteries, contact JDSU’s WEEE Program Management team at WEEE.EMEA@jdsu.com. HST-3000 Copper Testing User’s Guide...
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Table of Contents Glossary Index HST-3000 Copper Testing User’s Guide...
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Table of Contents HST-3000 Copper Testing User’s Guide...
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“Assumptions” on page xiv – “Terminology” on page xiv – “Application-oriented user guide” on page xv – “HST-3000 Base Unit User’s Guide” on page xv – “Safety and compliance information” on page xv – “Technical assistance” on page xvi –...
Assumptions This guide is intended for novice, intermediate, and experi- enced users who want to use the HST-3000 effectively and efficiently. We are assuming that you have basic computer experience and are familiar with basic telecommunication concepts, terminology, and safety.
About This Guide Application-oriented user guide Application-oriented user guide The HST-3000 Copper Testing User’s Guide is an application- oriented user’s guide containing information relating to the basic use of the device and includes detailed procedures for testing and troubleshooting copper services.
Before you contact JDSU for technical assistance, please have the serial numbers for the service interface module (SIM) and the base unit handy (see “Locating the serial number” in the HST-3000 Base Unit User’s Guide). Table 1 Technical assistance centers...
A vertical bar | means “or”: platform [a|b|e] only one option can appear in a single command. Square brackets [ ] indicate login [platform name] an optional argument. Slanted brackets < > group <password> required arguments. xvii HST-3000 Copper Testing User’s Guide...
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This symbol, located on the equipment or its packaging indicates that the equipment must not be disposed of in a land-fill site or as municipal waste, and should be disposed of according to your national regulations. xviii HST-3000 Copper Testing User’s Guide...
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. HST-3000 Copper Testing User’s Guide...
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About This Guide Conventions HST-3000 Copper Testing User’s Guide...
Getting Started Chapter 1 This chapter provides a general description of the HST-3000’s copper testing feature. Topics discussed in this chapter include the following: – “About copper testing” on page 2 – “What’s new in this release” on page 2 –...
(PI), noise, balance, time domain reflectometer (TDR), resistive fault locate (RFL), load coil detect, loss, wideband transmission impairment measurement set (WBTIMS), caller ID, and POTS dialer. The HST-3000 provides process customization through on-board auto tests and allows work- flow improvements via connectivity to craft access terminals and back-office systems.
You can expand your testing capability by purchasing addi- tional Copper Testing options. Table 6 lists the copper options. NOTE: For additional information about HST-3000 options, SIMs, and services, contact your local JDSU representative or contact JDSU through the company web site, www.jdsu.com. HST-3000 Copper Testing User’s Guide...
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Spectral Analysis Allows you to detect radio fre- HST3000-SPE quency interference from digital services or AM radios that can reduce the performance of a cop- per wire. Available for the HST-3000c only. a. Wideband only. HST-3000 Copper Testing User’s Guide...
– Solid green indicates that a data connection has been established with the network (so that the HST-3000 may send and receive data on the network). – Solid red indicates that a data connection error.
Off hook and on hook icons appear in the upper right corner of the menu bar indicating the state of the phone. Table 8 describes these status icons. For descriptions of other status icons, see the HST-3000 Base Unit User’s Guide. Table 8 Status icons Icon Function Indicates the phone is on hook.
Electrical shock may result in serious injury or death. Use care when connecting to telecommunications circuits, to be sure that you do not come in contact with exposed conduc- tors or power mains. Connect TNV signals to TNV ports only. HST-3000 Copper Testing User’s Guide...
The following sections describe these features and how to use them. NOTE: Some of the features listed above are optional. This man- ual assumes that all options are installed. Some of your menu selections may vary, depending on your installed options. HST-3000 Copper Testing User’s Guide...
– “Measuring voltage” on page 10 – “Measuring resistance” on page 12 – “Measuring insulation resistance” on page 15 – “Measuring the distance to a short” on page 16 – “Measuring current” on page 17 HST-3000 Copper Testing User’s Guide...
Chapter 2 DVOM Testing About the DVOM About the DVOM Using the Digital Volt/Ohm Meter (DVOM) feature, the HST-3000 measures AC and DC voltage, resistance, distance to a short, and current. To access the DVOM feature Access the Copper Measurements menu (see page Press the 1 key to access the DVOM.
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– 1MEG-ohm Term – 100K-ohm Term Press the Display soft key and then select DC Volts. NOTE: You can also press the up or down arrow key to move between AC volts and DC volts. HST-3000 Copper Testing User’s Guide...
To measure resistance Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test. Press the Display soft key and then select Resistance Snapshot or Resistance Continuous. HST-3000 Copper Testing User’s Guide...
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Snapshot or Resistance T-G menu. e Press the Refresh soft key. If you selected Resistance Continuous in step 2, you can specify the pair to measure by doing the following: a Press the Actions soft key HST-3000 Copper Testing User’s Guide...
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Press the Actions soft key and then select FED Open All. b Specify a duration, in seconds. This is how long the leads will remain open. The screen displays a duration timer during the test. HST-3000 Copper Testing User’s Guide...
NOTE: The Insulation Resistance measurement is only available when the Country is set to UK on the System>Instru- ment>International Settings menu. To test insulation resistance 1 Select DVOM from the main Copper Measurements menu. HST-3000 Copper Testing User’s Guide...
Tip and Ring (A and B), the measurement will be inaccurate. To measure distance Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test. Press the Display soft key and then select Distance to Short. HST-3000 Copper Testing User’s Guide...
Short Calculator. Press the Leakage soft key to use the high-voltage ohmmeter. Results appear on the screen. Measuring current Using the DVOM, you can test for continuity, and check for proper loop current for POTS lines. HST-3000 Copper Testing User’s Guide...
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HST automatically looks at both A and B for the -48v to Ground current results, just in case A and B are reversed. It shows all results in the upper section of the screen, in addition to the “Good, Bad, Marginal” result. HST-3000 Copper Testing User’s Guide...
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25 ohms or less. To turn off the FED (return to Through mode), press the Actions soft key and then select FED Off/Thru. To learn what your results mean, see “DC current” Chapter 12 “Interpreting Test Results”. HST-3000 Copper Testing User’s Guide...
“About opens” on page 22 – “Compensating the measurement” on page 22 – “Connecting and specifying the cable” on page 23 – “Testing with a UFED” on page 25 – “Measuring ringers” on page 26 HST-3000 Copper Testing User’s Guide...
Chapter 3 Measuring opens About opens About opens The HST-3000 measures the total electrical (capacitive) length of a pair using the opens feature. To access the opens feature – From the Copper Measurements menu (see page press the 2 key.
To specify the fill type or change the capacitance based on a type of cable, do the following (otherwise proceed step a Press the up and down arrows, or press the Display soft key and select the appropriate type. b Proceed to step HST-3000 Copper Testing User’s Guide...
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(A) to Ground (E), and Ring (B) to Ground (E), in µF/ mile (or other units depending on your configuration). The HST-3000 uses this value for Tip (A) or Ring (B) to Ground (E) capacitance. d Press the OK key.
Verify you are testing with a FED. Press the Actions soft key and then select FED Open All. Specify a duration, in seconds. This is how long the leads will remain open. The screen displays a duration timer during the test. HST-3000 Copper Testing User’s Guide...
To measure ringers Press the Display soft key, and then select Ringers. Press the Results soft key to clear or save the results. To learn what your results mean, see “Opens” Chapter 12 “Interpreting Test Results”. HST-3000 Copper Testing User’s Guide...
Measuring PI and Noise Chapter 4 This chapter provides task-based instructions for measuring power influence, noise, and balance. The HST-3000 performs longitudinal balance, power (mains) influence (PI) and noise measurements to calculate balance. Topics discussed in this chapter include the following: –...
Wideband background noise is covered in the WBTIMS section. To measure longitudinal balance From the Copper Measurements menu (see page press the 3 key. The Longitudinal Balance menu appears. HST-3000 Copper Testing User’s Guide...
To measure PI and noise Press the Display soft key, and then select PI/Noise. NOTE: This test excites the line and is sometimes referred to as a “stress test.” HST-3000 Copper Testing User’s Guide...
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Specify a duration, in seconds. This is how long the leads will be terminated or shorted. The screen displays a duration timer during the test. Press the Display soft key, and then select Power Harmonics. HST-3000 Copper Testing User’s Guide...
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Press the Results soft key to clear or save the results. To learn what your results mean, see “PI/Noise/Balance” Chapter 12 “Interpreting Test Results”. Measuring power influence and noise is complete. HST-3000 Copper Testing User’s Guide...
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Chapter 4 Measuring PI and Noise Measuring PI and noise HST-3000 Copper Testing User’s Guide...
Chapter 5 Locating cable faults About locating cable faults About locating cable faults There are two optional features on the HST-3000 that help locate cable faults. – TDR — The Time Domain Reflectometer (TDR) identifies bridged taps, wet sections, load coils, shorts, opens, and splices on the span.
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Actions soft key then 2. c Use the left and right arrows to move the cursor to the beginning of the fault, or enter a distance directly on the keypad to move the cursor and display to a desired HST-3000 Copper Testing User’s Guide...
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– Auto Range enables the “automatic TDR” feature. This allows you to progress through all TDR settings by pushing one button (repeatedly). If you selected Auto Range, press the up arrow key to move to the next among the Auto TDR selections. HST-3000 Copper Testing User’s Guide...
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Essentially, it is a different way of doing pulse-based TDR, but it can give better resolution on short lines. However, the signature of the faults is very different than the normal (traditional TDR) traces. HST-3000 Copper Testing User’s Guide...
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13 If you are testing toward a FED, UFEDII, or UFEDIIB, use the Actions menu to select a command to send. a Press the Actions soft key. b Select FED Command. HST-3000 Copper Testing User’s Guide...
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Results key. For information on saving “Saving results” on your results in graphical form, see page 167. 16 To learn what your results mean, see “TDR” Chapter 12 “Interpreting Test Results”. Locating cable faults with the TDR is complete. HST-3000 Copper Testing User’s Guide...
Connect T, R, T1, and R1 (or A, B, A1, and B1) to the lines under test. Access the Copper Measurements menu (see page Press the 4 key to select TDR. Press the Display soft key, and then press the 7 key. HST-3000 Copper Testing User’s Guide...
Access the Copper Measurements menu (see page Press the 4 key. Press the Results soft key. Press 2 to view a saved trace. Select the file name of the trace and then press the OK key. The graph appears. HST-3000 Copper Testing User’s Guide...
Press the Display soft key, and then press 5. c Press the Start TDR soft key. d Press the Results soft key, and then select Load Reference Trace. The HST-3000 displays the reference trace simultane- ously with the live trace. HST-3000 Copper Testing User’s Guide...
167. Performing a dual trace is complete. Performing a peak TDR trace The HST-3000 can display minimum, maximum, and current TDR traces over a test period. This feature is useful for analyzing faults that occur intermittently. To perform a peak TDR trace...
The following procedure describes how to locate cable faults using the RFL. To locate a cable fault using RFL Access the Copper Measurements menu (see page Press the 8 key to select Resistive Fault Locate. The Resistive Fault Locate screen appears. HST-3000 Copper Testing User’s Guide...
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If you selected multi gauge, select the gauge and temper- ature for each cable section by performing the following steps. a Press the Configure navigation key. b Press the right arrow (>) to move to the RFL Multigage screen. HST-3000 Copper Testing User’s Guide...
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The Ground hookup function is available only if you have a Copper Measurement board rev 510. To verify, go to the System>Tools>Options>Revisions screen and look for “Copper”. The Change Ground Hookup selection is not available in K-Test. HST-3000 Copper Testing User’s Guide...
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Measurement board rev 510. To verify, go to the Sys- tem>Tools>Options>Revisions screen and look for “Copper”. The K-Test is typically used to test for fault location when there is no “known good” (reference) pair. HST-3000 Copper Testing User’s Guide...
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FED, specify the FED strap duration by pressing the Actions soft key, selecting Change FED Strap Duration, and then enter the number of seconds, between 60 and 900. A counter appears indicating the duration of the strap HST-3000 Copper Testing User’s Guide...
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The test runs then displays the results. The results for the specific fault appear. The HST-3000 assumes that the fault is on the red lead. If the fault is not on the red lead, it will automatically flip Tip (A) and Ring (B) and run the test again. Thus, your screen may show swapped leads.
Detecting load coils Detecting load coils The HST-3000 can detect up to five load coils that may exist on the line, out to 27,000 (8,200 meters) feet. It will also report a short, open, or a high noise condition, if detected. For accu- rate load coil detection, test on a pair without voltage (supplied by a battery).
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NOTE: The distance to first load measurement assumes no other impairments are present between the HST-3000 and the first load coil. If other impairments are present, accuracy is reduced. If voltage greater than 50V peak is present, the test will abort.
Topics discussed in this chapter include the following: – “About loop loss” on page 54 – “Receiving tones” on page 54 – “Transmitting tones” on page 55 – “Measuring transmission impairment in the voiceband” on page 57 HST-3000 Copper Testing User’s Guide...
Chapter 6 Measuring loop loss About loop loss About loop loss The HST-3000 can send and receive voiceband tones to measure loop loss, perform a 3-tone slope test, dial the tele- phone switch to receive a milliwatt tone, and measure trans- mission impairment (noise, impulse noise, return loss).
Chapter 6 Measuring loop loss Transmitting tones You should hear audio of the tone. The HST-3000 begins measuring the frequency and level of each tone. The loss appears in the bar graph. If testing toward a FED, press the Actions soft key and then select FED Commands.
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Transmit a trace tone the 5 key Press the Start soft key. You should hear audio of the tone. The tone graph appears. NOTE: Your display may look different, depending on your trans- mission selection. HST-3000 Copper Testing User’s Guide...
Transmitting tones is complete. Measuring transmission impairment in the voiceband With the transmission impairment measurement option, you can use the HST-3000 to perform the following voiceband tests: – Noise (O.41 method) — measures noise using the ITU-T O.41 method. Results include the minimum, maximum, and current noise levels displayed in decibels.
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“Noise testing (ITU-T O.41 method)” on page 59 – “Noise with tone testing (O.41 method)” on page 60 – “Signal to noise ratio testing” on page 62 – “Impulsive noise testing (ITU-T O.71 method)” on page 63 HST-3000 Copper Testing User’s Guide...
Options Action Enable or disable a filer Select Filter, and then select the type of filter you want to apply or disable. For information about fil- ters, see Table 18 on page 196. HST-3000 Copper Testing User’s Guide...
Ring (B) pair (T/R or A/B) to the line under test. The HST measures the signal to noise ration on the T/ R pair. The far end device transmits the holding tone. Select the Noise with Tone (O.41 method) test. See page HST-3000 Copper Testing User’s Guide...
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You should hear audio of the tone. Results appear in the TIMS Noise with Tone screen. To change the result measurement from dB to dBrn, press the Result soft key, and then select either dB or dBrn HST-3000 Copper Testing User’s Guide...
Ring (B) pair (T/R or A/B) to the line under test. The HST measures the signal to noise ration on the T/R (A/ B) pair. The far end device transmits the holding tone. Select the SNR test. See page The TIMS SNR screen appears. HST-3000 Copper Testing User’s Guide...
(ITU-T configure test parameters. O.71 method) To measure impulsive noise Connect the Tip (A) and Ring (B) pair (T/R or A/B) to the line under test. Select the Impulsive Noise (O.71 method) test. See page HST-3000 Copper Testing User’s Guide...
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Select Filter, and then select the type filer of filter you want to apply or disable. For information about filters, see Table 18 on page 196. To configure Select Impulse Items. The test parameters for the parameter options appear. test step HST-3000 Copper Testing User’s Guide...
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Test Tone Ampli- Select one of the following: tude – 3 dBrn – 0 dBrn – -10 dBrn Mute/Enable Sound When the sound is enabled, the Effects HST will beep each time an impulse event is detected. HST-3000 Copper Testing User’s Guide...
Connect the Tip (A) and Ring (B) pair (T/R or A/B) to the line under test. Select the Return Loss test. See page If the Return Loss Sweep screen appears, press the Actions soft key, and then select Return Loss. The TIMS Return Loss screen appears. HST-3000 Copper Testing User’s Guide...
Connect the Tip (A) and Ring (B) pair (T/R or A/B) to the line under test. Select the Return Loss measurement option. See page If the Return Loss screen appears, press the Actions soft key, and then select Return Loss Sweep. HST-3000 Copper Testing User’s Guide...
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2 key To begin the sweep, press the Start soft key. The HST begins measuring return loss across the frequency range. The current frequency and decibel measurement appear at the bottom of the screen. HST-3000 Copper Testing User’s Guide...
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Cursor Return loss at frequency Frequency indicated by cursor Use the left and right arrow keys to move the cursor and view return loss at different frequencies. You have completed the test. HST-3000 Copper Testing User’s Guide...
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Chapter 6 Measuring loop loss Measuring transmission impairment in the voiceband HST-3000 Copper Testing User’s Guide...
Testing voice service Chapter 7 This chapter provides task-based instructions for using the optional HST-3000 copper testing features. Topics discussed in this chapter include the following: – “Testing voice service and Caller ID” on page 72 HST-3000 Copper Testing User’s Guide...
Access the Copper Measurements menu (see page Press the 7 key. The POTS Phone menu appears. Place a call. a Dial the number using the speed-dial (Speed soft key) or manually enter the phone number using the keypad. HST-3000 Copper Testing User’s Guide...
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NOTE: For lines that support Caller ID Call Waiting, you can be on a call and the when the HST-3000 indicates an incoming call, the name and number information appears in the box. c Optional. To mute the microphone, press the Actions soft key, and then select Mute (or Un Mute) Micro- phone.
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Chapter 7 Testing voice service Testing voice service and Caller ID HST-3000 Copper Testing User’s Guide...
Chapter 8 This chapter provides task-based instructions for using the wideband testing features. Topics discussed in this chapter include the following: – “Performing WBTIMS measurements” on page 76 – “Performing WB2 measurements” on page 110 HST-3000 Copper Testing User’s Guide...
For best results, do not use the battery charger while per- forming WBTIMS measurements, especially when measur- ing very low amplitudes. Measuring The HST-3000 can send and receive tones to measure wide- band loss. wideband loss HST-3000 Copper Testing User’s Guide...
Press the Actions soft key, then the 1 key. The Loss Meter menu appears. Press the Start soft key. The HST-3000 begins measuring the frequency and level of each tone. The loss appears in the bar graph. To change the frequency range, do the following: a Press the Display soft key.
Transmitting The following procedure describes how to transmit wideband wideband tones tones. To transmit wideband tones Connect the Tip and Ring (A and B) leads to the line under test. Press the Actions soft key. HST-3000 Copper Testing User’s Guide...
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Optional. To change the amplitude of the signal, do the following: a Press the Actions soft key b Select Amplitude. c Type the new amplitude in the dialog box, and then press the OK key. HST-3000 Copper Testing User’s Guide...
DDS, which requires a transmit pair and a receive pair. You measurements can use the HST-3000 to test both pairs simultaneously. To measure loss on both pairs Connect the T, R, T1 and R1 to the pairs under test (a total of four connections for two lines).
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Type a value for the transmitted frequency in kHz. c Press the OK key. The Loss Meter menu appears. The HST-3000 begins measuring the frequency and level of each tone. The loss appears in the bar graph. Optional. To change the display view, do the following: a Press the Display soft key, and then select the view.
1 key F (HDSL, T1) the 2 key G (ADSL) the 3 key None the 4 key Optional. To change termination, do the following: a Press the Actions soft key. b Press the 2 key. HST-3000 Copper Testing User’s Guide...
The following procedure describes how to measure impulse noise. To measure impulse noise Connect the Tip and Ring (A and B) leads to the line under test. Press the Display soft key. Select Impulse Noise. HST-3000 Copper Testing User’s Guide...
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Press the Actions soft key. b Press the 4 key. c Select a filter. To select… Press… E (DDS, BRI) the 1 key F (HDSL, T1) the 2 key G (ADSL) the 3 key HST-3000 Copper Testing User’s Guide...
Radio frequency interference from digital services or AM radios can reduce the performance of a copper wire. With the spectral noise spectral noise option, the HST-3000 can detect and measure the existence of such interference. HST-3000 Copper Testing User’s Guide...
Chapter 8 Wideband testing Performing WBTIMS measurements Using the spectral The HST-3000 can display the noise on the line. analyzer To measure spectral noise Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test. Press the Display soft key, and then press the 2 key.
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Press the key corresponding to the interference. Optional. To change termination, do the following: a Press the Actions soft key. b Select Termination. c Select a termination. Your termination selections vary depending on the span. HST-3000 Copper Testing User’s Guide...
Spectral analysis is complete. Viewing a saved The following procedure describes how to view a saved trace. spectral analysis trace To view a saved trace Press the Results soft key. Press 2 to Load Reference Trace. HST-3000 Copper Testing User’s Guide...
DSL errors impacting performance. Another use for the comparison feature is to help identify the source of radio frequency interference (RFI) using the SDI-100. HST-3000 Copper Testing User’s Guide...
If set to a low number, the spectral measure- ments may look slightly erratic, because one measure- ment may be slightly higher or lower than the next. So, if you set this to a higher number, the measurement HST-3000 Copper Testing User’s Guide...
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However, the higher number will add latency. Therefore, specifying this setting as “1” will enable quicker responsiveness and easier location of the interferer. Start the test. The spectral graph will look similar to Figure Figure 2 Spectral trace HST-3000 Copper Testing User’s Guide...
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The selections vary depending on the selected span. Stop the test but do not exit. Save the spectral data. Select Results>Save graph data. Connect the SDI-100 to the test tool’s T, R, and Ground (A, B, earth) connectors. HST-3000 Copper Testing User’s Guide...
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10 View the difference of the saved and current trace by selecting Results>View Compared. The spectral graph will look similar to Figure Figure 3 Saved spectral trace compared to current HST-3000 Copper Testing User’s Guide...
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The point at which the signal drops will give you a bearing for the signal. 15 Move toward the signal. If it is increasing, you are going toward the disturbance. Modifying your bearing if the signal loses strength. You have located the signal. HST-3000 Copper Testing User’s Guide...
For this reason it is recommended that the initial approximate location of the radiating interferer be done with end of the antenna, searching for a peak signal. After an approximate bearing is established, the flat face of the antenna should be HST-3000 Copper Testing User’s Guide...
As you approach the interferer, the received signal will increase and be strongest right next to it. Measuring With the transmission impairment measurement option, you can use the HST-3000 to perform the following types of wide- transmission band tests: impairment in the wideband –...
“Far-end crosstalk (FEXT) testing” on page 108 Wideband noise To measure wideband noise testing Connect the primary Tip (T), Ring (R), and Ground leads to the line under test. Select the Noise test. See page HST-3000 Copper Testing User’s Guide...
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To begin the test, press the Start soft key. The noise result appears, in dBm, on the Wideband Noise screen. To view results in dBrn, press the Result soft key, and then select Display Results in dBrn. You have completed the measurement. HST-3000 Copper Testing User’s Guide...
– Select Termination, and then termination select a value, in ohms, for the ter- mination. Press the Start soft key to begin the test. Results appear in the SNR screen. You have completed the test. HST-3000 Copper Testing User’s Guide...
Press the Actions soft key. b Press the 3 key. c Type the noise threshold, and press the OK key. Select a filter by performing the following steps. a Press the Actions soft key. b Press the 5 key. HST-3000 Copper Testing User’s Guide...
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If an impulse noise “hit” occurs, a log file is generated that includes the date and time and the number of counts that occurred in that second. The log file also includes the termination, filter, threshold, and test start time. HST-3000 Copper Testing User’s Guide...
Actions soft key, and then select Return Loss. c Press the Configure soft key. The Return Loss Compensate screen appears. d Follow the on-screen instructions. e When compensation is complete, press the Home navigation key. HST-3000 Copper Testing User’s Guide...
To measure return loss over a range of frequencies Before you begin the test, JDSU recommends calibrating the HST: a Connect the Tip (A), Ring (B), and Ground (E) leads to the line under test. HST-3000 Copper Testing User’s Guide...
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To specify the termination (impedance), do the following. a Press the Actions soft key, and then select Termina- tion. b Select a value, in ohms, for the termination. To begin the test, press the Start soft key. HST-3000 Copper Testing User’s Guide...
You can specify the termination and tone frequency. To measure near-end crosstalk Connect both Tip (A) and Ring (B) pairs (T/R and T1/R1 or A/B and A1/B1) to the lines under test. Select the NEXT test (see page 96). HST-3000 Copper Testing User’s Guide...
This allows coupling from one pair to another to be detected. You can specify the termination, and the start and end frequencies for the sweep. HST-3000 Copper Testing User’s Guide...
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To specify the end of – Select NEXT Stop Frequency, the frequency range and then enter a value from 10 you want to view to 2000 kHz. – Press OK. Press the Start soft key to begin the test. HST-3000 Copper Testing User’s Guide...
To measure far-end cross talk Connect both Tip (A) and Ring (B) pairs (T/R and T1/R1 or A/B and A1/B1) to the lines under test. Select the FEXT test (see page 96). HST-3000 Copper Testing User’s Guide...
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10 to 2000 kHz. Press the Start soft key to begin the test. The noise measurement appears in decibels on the FEXT screen. You have completed the test. HST-3000 Copper Testing User’s Guide...
“WB2 Near-end cross talk (NEXT) sweep testing” on page 135) – Balance (See “WB2 Balance testing” on page 137) For additional information about HST options, contact your JDSU representative or contact JDSU through the company web site, www.jdsu.com. HST-3000 Copper Testing User’s Guide...
When performing WB2 tests, connect to the line as described in the following procedure. the line NOTE: For best results, do not use the battery charger while per- forming WB2 TIMS measurements, especially when mea- suring very low amplitudes. HST-3000 Copper Testing User’s Guide...
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Connect pair 1 using the black and red leads, placing 1 full twist in the cable. – Connect the black lead to Tip (T, or “A”). – Connect the red lead to Ring (R, or “B”). HST-3000 Copper Testing User’s Guide...
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Figure Pair 1 Pair 2 Ground 2 Full 2 Full Twists Twists This cable NOT used for Receive Tones Cabling for test connection Figure 7 Connecting to the line HST-3000 Copper Testing User’s Guide...
With the spectral noise measurement, the HST-3000 can detect and measure the existence of interference such as AM spectral radio. The HST-3000 can display the noise on the line. analyzer To measure WB2 spectral noise Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test, as described in “Connecting to the...
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So, if you set this to a higher number, the measurement appears more stable. However, the higher number will add latency. HST-3000 Copper Testing User’s Guide...
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Your termination selections vary depending on the span. 11 Optional. To superimpose a spectral mask for a specific technology, do the following: a Press the Display soft key and then press 7. b Select a technology. HST-3000 Copper Testing User’s Guide...
“Saving results” on page 167. 14 Press the Stop soft key. Spectral analysis is complete. Measuring The HST-3000 can send and receive tones to measure wide- band loss. wideband2 loss Receiving The following procedure describes how to receive wideband2 wideband2 tones tones.
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Performing WB2 measurements The Loss Meter menu appears. Press the Start soft key. The HST-3000 begins measuring the frequency and level of each tone. The loss appears in the bar graph. Optional. To change the display view, press the Display soft key, and then select Frequency List View or Frequency Meter View.
Press the 8 key A Tx Frequency field appears. Enter a value for the frequency (kHz). Press the Start soft key. The tone graph appears. NOTE: Your display may look different, depending on your trans- mission selection. HST-3000 Copper Testing User’s Guide...
HDSL-4, which requires a two pairs. You can use the measurements HST-3000 to test both pairs simultaneously. To measure loss on both pairs Connect the Tip (A), Ring (B), T1 (A1), R1 (B1), and Ground (E) leads to the line under test, as described in “Connecting to the line”...
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A Tx Frequency field appears. Enter a value for the frequency (kHz), and then press the OK key. The Loss Meter menu appears. The HST-3000 begins measuring the frequency and level of each tone. The loss appears in the bar graph.
Press the Display soft key, then select WB2 TIMS. Select Noise. The Noise Power menu appears. Optional. To apply a filter, do the following: a Press the Actions soft key. b Press the 1 key. HST-3000 Copper Testing User’s Guide...
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135 ohm the 2 key Press the Results soft key to save or clear the results. For information on saving your results in graphical form, “Saving results” on page 167. Measuring wideband2 noise is complete. HST-3000 Copper Testing User’s Guide...
To specify the – Select Termination, and then select termination a value, in ohms, for the termination. Press the Start soft key to begin the test. Results appear in the SNR screen. You have completed the test. HST-3000 Copper Testing User’s Guide...
Optional. To change the threshold units, do the following. a Press the Actions soft key. b Press the 3 key. This toggles between dBm and dBr n. HST-3000 Copper Testing User’s Guide...
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Optional. To change termination, do the following: a Press the Actions soft key. b Press the 6 key. c Select a termination. To select… Press… 100 ohm the 1 key 135 ohm the 2 key HST-3000 Copper Testing User’s Guide...
Measuring impulse noise is complete. Running a WB2 Impulse capture works like an oscilloscope. It provides a graphic display of the signal. impulse capture The following procedure describes how to run a WB2 impulse capture. HST-3000 Copper Testing User’s Guide...
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Press the 3 key. c Select a filter. To select… Press… G Filter the 1 key G2 Filter the 2 key J-20K8 the 3 key J-640K17 the 4 key J-17M25 the 5 key J-17M30 the 6 key HST-3000 Copper Testing User’s Guide...
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1 key 135 ohm the 2 key Press the Start soft key. Cursor As soon as the signal crosses the selected threshold, a time-domain graph will be displayed showing ±10 µs of when the impulse occurred. HST-3000 Copper Testing User’s Guide...
For information on saving your results in graphical form, “Saving results” on page 167. You have completed the procedure. WB2 Return This test measures return loss caused by impedance mismatches for a user-specified frequency. Results are loss testing displayed in decibels. HST-3000 Copper Testing User’s Guide...
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50 to 10000 kHz, and then press OK. Press the Start soft key to begin the test. The result appears in decibels (dB) in the Return Loss screen. You have completed the test. HST-3000 Copper Testing User’s Guide...
If the Return Loss screen appears, press the Actions soft key, and then select Return Loss Sweep. To specify the termination, press the Actions soft key, select Termination, and then select a value. To begin the test, press the Start soft key. HST-3000 Copper Testing User’s Guide...
This test detects coupling at the near end from one pair of wires to another. The HST transmits a tone on a pair of wires cross talk from the near end while noise is measured on another pair of (NEXT) testing HST-3000 Copper Testing User’s Guide...
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– Select Termination, and tion (impedance) then select a value in ohms. To specify the transmit – Select NEXT Frequency, tone frequency and then enter a value from 25 to 30000 kHz. – Press OK. HST-3000 Copper Testing User’s Guide...
“Connecting to the line” on page 113. Press the Display soft key, then select WB2 TIMS. Select the NEXT test. If the NEXT screen appears, press the Actions key, and then select NEXT Sweep. The NEXT Sweep screen appears. HST-3000 Copper Testing User’s Guide...
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Shift + left/right zooms on the X axis Shift + up/down zooms on the Y axis. Use the left and right arrow keys to move the cursor and change to different frequencies within the range. You have completed the test. HST-3000 Copper Testing User’s Guide...
Action To specify the termi- – Select Termination, and then nation select a value, in ohms, for the termination. To change the receive – Select RX Frequency, and frequency then enter a frequency, in kHz. HST-3000 Copper Testing User’s Guide...
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HST at the far end as shown on the screen. Press the Start soft key to begin the second step of the test. The results appear on the screen. You have completed the test. HST-3000 Copper Testing User’s Guide...
This chapter provides task-based instructions for using the optional far end device (FED) accessory for testing. Topics discussed in this chapter include the following: – “About controlling a Far End Device” on page 140 – “Manually commanding the FED” on page 140 HST-3000 Copper Testing User’s Guide...
After a technician has connected a FED (such as the JDSU UltraFED) to the far end of the pair under test and has connected the HST-3000 to the near end, the HST controls the FED using DTMF tones. JDSU's newer Far End Devices (the UFEDIIB and newer) are uniquely addressable.
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Connects a tone generator across tip (A) to ring (B) and sends a 577 Hz tone. Trace Tone 2 Connects a tone generator across tip (A) to ring (B) and sends a 1004 Hz tone. HST-3000 Copper Testing User’s Guide...
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R1. This is used primarily for RFL mea- surements on a known good pair. Multi Tone Connects the complex tone from tip (A) to ring (B). This is used for spectral tone tests when checking loss or cross- talk. HST-3000 Copper Testing User’s Guide...
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FEDs connected to the line, select All FEDs from the FED ID menu. Go to step – If you are using a newer UFEDIIB, you can select a specific FED to control, go to step HST-3000 Copper Testing User’s Guide...
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Press the SEND soft key. The command that you specified in step 4 – step 6 is sent and the test runs for the specified duration. You have completed the test. HST-3000 Copper Testing User’s Guide...
Chapter 10 Automated tests About the automatic tests About the automatic tests The Auto Test features of the HST-3000 allow automatic testing (scripts). Features include the following: – Good Pair Check — Out-of-service pair quality check – Closeout Test — A Bellcore (Telcordia) T.136 five-point test sequence –...
Connect the Tip (A), Ring (B), and Ground (E) leads to the line under test. Access the Copper Scripts menu (see page 146). Press the 2 key to select Good Pair Check. A list of configurations appears. HST-3000 Copper Testing User’s Guide...
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The purpose is to see if changes in the result are caused by the continuous testing of the circuit with the leakage mode ohm meter. HST-3000 Copper Testing User’s Guide...
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– Press the 1 key to save the configuration. Enter the file name for the configuration file then press the OK key. The HST-3000 saves the configuration and starts the test. – Press 2 to run the test without saving the configura- tion.
Go to step – If you want to edit the configu- ration, press the 2 key. – Select the item to change. – Press 1 to Accept Configs. Go to step New configuration Go to step HST-3000 Copper Testing User’s Guide...
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– Press the 1 key to save the configuration. Enter the file name for the configuration file then press the OK key. The HST-3000 saves the configuration and starts the test. – Press 2 to run the test without saving the configura- tion.
To run a wideband autotest Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test. Access the Copper Scripts menu (see page 146). Press the 4 key to select Wideband AutoTest with FED. HST-3000 Copper Testing User’s Guide...
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Select the cable gauge. Select a voltage termination (100K-ohms or 1M-ohm). 10 Edit the pass/fail threshold criteria for each test. Select Continue when finished. 11 Select the tests you want to include in the autotest. HST-3000 Copper Testing User’s Guide...
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– Press the 1 key to save the configuration. Enter the file name for the configuration file then press the OK key. The HST-3000 saves the configuration and starts the test. – Press 2 to run the test without saving the configura- tion.
For this test, it is recommended that you use a far end device (FED) at the far end of the circuit. The following procedure describes how to run the Copper Expert test. HST-3000 Copper Testing User’s Guide...
For information about creating, modifying and deleting test records, see the HST-3000 Base Unit User’s Guide. To associate a test record with test results After running the Auto Test, press the OK key to Continue.
Running the The following procedure describes how to run a Copper DSL test. script To run a Copper DSL test Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test. HST-3000 Copper Testing User’s Guide...
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– Voltage (VDC, VAC T-G/R-G, and VAC T-R) – Circuit Res (Resistance/Leakage) – Opens – Longitudinal Balance – Power Influence – Circuit Noise – WB Noise – WB NEXT – WB Impulse Noise HST-3000 Copper Testing User’s Guide...
– Press the 1 key to save the configuration. Enter the file name for the configuration file then press the OK key. The HST-3000 saves the configuration and starts the test. – Press 2 to run the test without saving the configura- tion.
Bridged tap test The Bridged Tap script runs a TDR test and then an Opens test toward a UFED to determine if the line under test has a bridged tap and the length of the tap. HST-3000 Copper Testing User’s Guide...
The True Length test measures the actual, or “true” length of the pair using results from opens, TDR & loop resistance. Since any one of these measurements on its own may be misleading, the combination of the three gives a better result HST-3000 Copper Testing User’s Guide...
In certain cases, the gauge of the tested pair can be deter- mined. That result is displayed as a soft key. Possible results for gauge are ‘22’, ‘24’, ‘26’, ‘Mixed’ and blank. The TDR uses HST-3000 Copper Testing User’s Guide...
To run a RFL PreTest Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test. Access the Custom Scripts menu. Select OneCheck RFL PreTest. Select the UFEDIIB pair. The test begins. HST-3000 Copper Testing User’s Guide...
Access the Custom Scripts menu. Select OneCheck Kick Test. The test begins. If the voltage test detects battery, a “open all” command is sent to the FED, and the test restarts. HST-3000 Copper Testing User’s Guide...
Access the Custom Scripts menu. Select OneCheck Shield Test. Select the UFEDIIB pair. The test begins. The test sets the FED to strap all leads, then runs either the RFL test, or leakage resistance. HST-3000 Copper Testing User’s Guide...
If you purchased custom scripts, you can access them by pressing the AutoTest navigation key. NOTE: For more information about purchasing customized test scripts, contact your JDSU sales representative. HST-3000 Copper Testing User’s Guide...
Press the OK key to save results to the file or press Cancel to exit. The test results are saved to the file. For information about managing files, see the HST-3000 Base Unit User’s Guide. To clear on-screen results From any result menu, press the Results soft key.
Press the OK key to save results to the file. The results are saved to the file. For information about managing files, see the HST-3000 Base Unit User’s Guide. Saving graphs If you want to save a graph or trace in text format, you can use the Save Graph feature.
Type the name of a file, or press the OK button to accept the default. The HST-3000 saves the graphic in BMP format. You can retrieve the files from the HST-3000 by connecting through a serial port. Table 12 lists the locations of the graphics.
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Chapter 11 Saving results Saving screen captures For more information about managing files, see the HST-3000 Base Unit User’s Guide. HST-3000 Copper Testing User’s Guide...
Application Ring voltage level can be checked by having the CO ring back on the line. Results should be either 85 volts (older switches) or 105 volts (newer switches). DC voltage The following section describes the DC voltage result. Question Why do you measure DC volts? HST-3000 Copper Testing User’s Guide...
ID boxes. DC current on Tip to Ring should be ≥ 23 mA at the NID. Anything less will not allow for differences in temperature and phone equipment will not operate during extremes. HST-3000 Copper Testing User’s Guide...
Application Loop resistance is measured with the pair short circuited (shorted) at one end, so a much lower resistance value is measured, as the current can readily flow down one lead and easily back up the other across the short. This “loop resis- HST-3000 Copper Testing User’s Guide...
– find wet sections, bridged taps or open faults. Opens/Capacitance: < 3% difference between Tip and Ring values indicate an acceptably balanced loop. Anything greater indicates an unbalanced line or open fault, which inhibit digital signals. HST-3000 Copper Testing User’s Guide...
If they do not cancel induced noise equally, the difference is realized as unwanted current, or metallic or mutual noise. If the imbalance of the leads is too great, the customer would hear noise. HST-3000 Copper Testing User’s Guide...
The following section describes the TDR result. Question Why do you use a TDR (Time Domain Reflectometer)? Answer You use a TDR to identify and locate buried splices, shorts and low resistance faults, opens, bridge taps, load coils, and wet cables. HST-3000 Copper Testing User’s Guide...
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Any impairment which creates a strong signal reflection creates a upward bump in the trace (such as the open end of a loop). Basic DVOM and capacitance meters can also determine impairments, whereas the TDR is used to locate the faults. HST-3000 Copper Testing User’s Guide...
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VP, Pulse Width, Gain, and Zoom. The examples above were not performed in TVG (Time Varying Gain) mode. HST-3000 Copper Testing User’s Guide...
Sometimes 404 Hz, 1004 Hz and 2804 Hz loss is measured to ensure attenuation is constant over the POTS frequency range. Load coils The following section describes the load coil result. Question Why do you check for load coils? HST-3000 Copper Testing User’s Guide...
Answer You use the POTS dialer to: – place calls to drop battery for opens testing, or to estab- lish a quiet termination for balance and noise tests. – place POTS calls or check caller ID. HST-3000 Copper Testing User’s Guide...
BRI or ADSL. Impulse Noise The following section describes impulse noise. Question Why do you measure impulse noise? Answer Impulse noise is used to check for the presence of noise spikes that disrupt digital services. HST-3000 Copper Testing User’s Guide...
The following section describes the RFL. Question Why do you use an RFL? Answer You use an RFL to find resistive faults such as poor splices, water, shorts, and battery crosses by cable damage (caused by rodents, the weather, etc.). HST-3000 Copper Testing User’s Guide...
– “Copper test problems” on page 188 About troubleshooting If you are having trouble with the HST-3000, the following sections describe common problems and solutions. You should verify whether your problem is listed here before contacting technical assistance. There are two sections included: –...
I am performing an Opens test. The mutual value looks good, but the Tip and Ring values are really short. Resolution Verify the ground. The module must be grounded to the same ground as the pair under test. HST-3000 Copper Testing User’s Guide...
10 to 50kft (157 to 786nF) 1 ft 50 to 100kft (0.78 to 1.6uF) 1 ft 10 % Power Influence 40 to 120 dBnrc 1 dB 2 dB Noise 0 to 50 dBnrc 1 dB 2 dB HST-3000 Copper Testing User’s Guide...
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± 2dB threshold E filter 35 to 100dBrn 1 count ± 2dB threshold WB TX Tones amplitude +5 to -10dBm ± 0.5dB -10 to -20dBm ± 1dB frequency 10kHz to 2.2 MHz 0.05% 100/135 Ω impedance HST-3000 Copper Testing User’s Guide...
@ +3, 0, or -10 dBm notch filters 820 or 1020 Hz 900/600 Ω and Bridge termination level 0 to 50 dB ± 2 dB frequency 820 and 1020 Hz filter C-message, Psophomet- ric, Channel, or No filter termination 900/600 HST-3000 Copper Testing User’s Guide...
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40 dB 100/135 Ω termination FEXT level 0 to 50 dB at 500 kHz ± 2 dB at 1 MHz and frequency 10 to 2000 kHz crosstalk of 40 dB 100/135 Ω termination HST-3000 Copper Testing User’s Guide...
5 kHz to 4 MHz Noise E Filter 1 kHz to 50 kHz IEEE Standard 743 Impulse Noise Noise F Filter 4.9 kHz to 245 kHz IEEE Standard 743 G Filter 20 kHz to 1.1 MHz IEEE Standard 743 HST-3000 Copper Testing User’s Guide...
51 kHz to 100 kHz 1 dB ±1.5 dB +14 to -40 dBm 100 kHz to 9.99 MHz 1 dB ±1.0 dB +14 to -40 dBm 10 MHz to 30 MHz 1 dB ±1.5 dB HST-3000 Copper Testing User’s Guide...
± 2 dB for results 100/135 Ω Termination between 5 dB and 40 dB Balance 0 dB to 60 dB 1 dB ± 2 dB WB2 Spectral Table 20 provides specifications for the WB2 spectral measurements. measurement specifications HST-3000 Copper Testing User’s Guide...
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17.6 MHz to 30 MHz 4.3125 kHz +15 to -90 dBm, -28 to -147 dBm/Hz 20 kHz to 30 MHz 8.625 kHz +15 to -90 dBm, -29 to -144 dBm/Hz 100 Ω, 135 Ω Terminations HST-3000 Copper Testing User’s Guide...
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Delay indicates how cation and troubleshooting of long it takes bits to find their way VDSL and ADSL2+ networks. through a network. Digital — Having only discrete values, such as 0 or 1. Gnd — Ground. HST-3000 Copper Testing User’s Guide...
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The of linking data devices together. discrepancy between the two help to trace the fault. TDR — Time domain reflectom- eter. HST-3000 Copper Testing User’s Guide...
Glossary WAN — Wide Area Network. A data communications network that spans any distance and is usually provided by a public carrier. HST-3000 Copper Testing User’s Guide...
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Opens test Auto interpret TDR Closeout test Auto TDR 36–37 Comparing traced TDRs Automatic tests 146–166 about Compensating RFL closeout Compliance information custom scripts Connections good pair check ground wideband 152, ring Conventions xvii HST-3000 Copper Testing User’s Guide...
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Dual traces DVOM 10–19 alarm Error LED battery data error loopback sync Far-end crosstalk Load coils detecting result description addressing controlling 140–144 Locating cable faults using the RFL FEXT test using the TDR 34, Loopback LED HST-3000 Copper Testing User’s Guide...
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Noise testing, wideband wideband 103, Noise with tone test, voice band compensating description locating cable faults result description Opens compensating for test lead effect Ringers custom cable 24–25 measuring result description ringers Safety information troubleshooting values Options HST-3000 Copper Testing User’s Guide...
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41, voice band return loss worldview voice band return loss sweep zooming voice band signal to noise ratio Technical assistance HST-3000 Copper Testing User’s Guide...
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