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Other product and brand names may be trademarks or registered trademarks of their respective owners. Documentation Disclaimer This document is provided “as-is” and is to be used only as a general guide. TC Communications disclaims all warranties, express or implied, regarding the accuracy of the information. TC Communications shall not be liable for any indirect, special, incidental, or consequential damages (including damages for loss of business, loss of profits, loss of business information, business interruption or other pecuniary loss) arising out of errors in this document.
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Guide to Alert Symbols These alert symbols are used in Caution, Warning, and Danger notes. Symbol Meaning Pinching or crushing hazard Electrical hazard. Equipment alert: be careful of damage from static electricity General alert: used for all other hazardous conditions (referring to people, not equipment).
Chapter 1 Introduction Introduction This manual contains a description of the TC8518 as a T1/E1, Data/Voice & Ethernet Fiber Optic Multiplexer that provides T1/E1, Data/Voice & Ethernet connectivity over fiber optics. It supports 8/12/16 channels of T1 or E1 and 3-port Ethernet switch over single mode (1300/1550nm), or multimode fiber (1300nm).
General Information General Information This manual is for the operation and maintenance of the TC8518. It is intended for TC Communications factory-trained personnel. TC8518 Product Description This manual contains a description of the TC8518 as a T1/E1, Data/Voice & Ethernet Fiber Optic Multiplexer that provides T1/E1, Data/Voice & Ethernet connectivity over fiber optics.
Chapter 1 Introduction TC8518 Product Description 1.3.1 Features • Integrates Multiple T1/E1 and Ethernet Over Fiber Optics • 8, 16, 20, or 24 Channels of T1 or 8, 16, 20 Channels of E1 • 3-Port Auto-Negotiating & Auto-Sensing Ethernet Switch (100Mbps total bandwidth) •...
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Chapter 1 Introduction TC8518 Product Description 1.3.1.1 TC8518 Front Panels The TC8518 front panel consists of: • Power Source A and B availability • Alarm Relay (ALM RLY) • Alarm (ALM) • ACO Button • Console Port (CON) • 3 Ethernet Ports and related status LEDs •...
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Chapter 1 Introduction TC8518 Product Description TC8518 Front Panel TC8518 Rev 2.2 User Manual...
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Chapter 1 Introduction TC8518 Product Description 1.3.1.2 TC8518 System Configuration TC8518 T1: Standard: 4CH T1, 8CH T1, 12CH T1 and 16CH T1 Options (Only one of the following can be selected): 1. Phone FXS: 4CH FXS or 8CH FXS 2. Phone FXO: 4CH FXO or 8CH FXO 3.
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Chapter 1 Introduction TC8518 Product Description TC8518 with T1/E1 Expansion (Back) TC8518 with FXS Expansion (Back) TC8518 with FXO Expansion (Back) TC8518 with RS-232/ RS-422/RS-485 (Back) *For Future Release TC8518 with 4 Channel 2 Wire or 4 Wire Analog (Back) Figure 1-3 TC8518 Expansion Options TC8518 Rev 2.2 User Manual...
Chapter 1 Introduction TC8518 Product Description 1.3.1.3 Hardware The TC8518 has these standard features: • Power, Fiber Redundancy • Full interoperability and compatibility combined with seamless, transparent integration with other Layer 2 Ethernet switches • Local Dry Contact Alarm Relay (DCAR) •...
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Chapter 1 Introduction TC8518 Product Description 1.3.4.2 Console Terminal Sessions A command-line interface (CLI) is a method for interacting with the system. It provides information to the user through the use of terminal interface via the console port. TC8518 Rev 2.2 User Manual...
Chapter 1 Introduction TC8518 Product Description Physical/Electrical Dimensions 19 x 1.75 x 11 in / 48.26 x 4.43 x 27.94 cm (W x H x D) Mounting Standalone, 19 or 23 inch rack mount Power Source (AC) 90 to 260 VAC, 50/ 60 Hz Power Source (DC) 24VDC 48VDC...
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Chapter 1 Introduction TC8518 Product Description Pin Assignments Console RJ-45 Port Pin Assignment Ethernet RJ-45 Port Pin Assignment Pin Number Signal Pin Number Signal Transmit Data TPTX+ Signal Ground TPTX+ Signal Ground TPRX+ Receive Data TPRX+ Chassis GND Chassis GND Alarm Relay Connector Pin Number Signal...
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Chapter 1 Introduction TC8518 Product Description T1/E1 RJ48 Line Connector Unassigned Console Port Configuration Option Default Baud Rate 9600 9600 Data Length 8-bits 8-bits Stop Bits 1-bit 1-bit Parity None None RJ-11 600Ω Analog Port Pin Assignment 4 Wire 2 Wire RJ-11 Jack (Pin Assignment) 1 - N/A...
Chapter 1 Introduction TC8518 Product Description 1.3.8 Default Unit Alarm Settings When the TC8518 reports an alarm condition, such as loss of synchronization, the alarm will cause the ALM LED on the front panel to flash RED . Each alarm can be individually enabled or disabled.
Chapter 2 Installation General Information The installation section describes how to: • Unpack the unit • Ensure an optimum site location • Install the power supply and dry contact connection Unpacking Before unpacking any equipment: • Inspect all shipping containers for evidence of external damage caused during transportation.
Chapter 2 Installation Mechanical Installation Mechanical Installation The TC8518 can either be stand-alone or rack-mounted. 2.4.1 19-Inch Rack Mounting All TC8518s can be mounted on standard 19-inch racks. Table 2-1: 19-Inch Configurations TC8518 mounted to 19- inch rack 2.4.2 Power Supplies The TC8518 offers several different power input options (12 VDC, 24 VDC, -48 VDC, 110V/220V).
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Chapter 2 Installation Mechanical Installation Determine if the front panel of PWR A and PWR B LED is green or ON. Then The LED is green on both power Proceed. A and B. The front LED is OFF. This indicates a problem with the power source, the power supply or the connector.
Chapter 2 Installation Unit Power DCAR Specifications Max Load Voltage 125 VAC, 60VDC Continuous Load Current Peak Load Current Power Rating AC: 62.5VA DC: 30W NOTE Use only uni-directional transmissions. NOTICE A dry contact is a set of two switch contacts, like a set of contacts from a relay or from a toggle switch, etc., that has both terminals available and neither contact is connected to power.
Chapter 2 Installation Quick-Start Guide • The phone ports (RJ-11) on the expansion card are accessed using 2-wire phone cable. Table 2-3: Cable Configurations RJ-45 Ethernet Connection RJ-45 to DB-9 (Included in the Package) RJ48-to-BNC Adapter (For E1 Only) Optional Quick-Start Guide This section describes the basic TC8518 configuration and setup.
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Chapter 2 Installation Quick-Start Guide 2. Set the Basic Settings to label and describe the TC8518. Please refer to Figure 3- 5, Web Application - Basic Settings. 3. Set up the new IP address for the TC8518. This page can be accessed from the "IP Settings"...
Management through the Web Introduction TC Communications’ web management application is integrated on your TC8518. This user friendly interface may be accessed through the Ethernet ports on the TC8518. The web management may also be accessed remotely over the network if the TC8518 has been integrated to your network.
Chapter 3 Management through the Web Home Page Home Page The Home Page displays an overall view of the TC8518. Please refer to Figure 3-2, Web Application - Home: Physical Status. Unit Uptime: Displays the time duration the TC8518 has been powered on. It separates the time into days, hours, minutes, and seconds.
Chapter 3 Management through the Web Home Page 3.3.1 Home: Physical Status The Physical Status page displays the internal temperature of the TC8518 and the power supply statuses. Please refer to Figure 3-2, Web Application - Home: Physical Status. Unit Temperature: The internal temperature of the TC8518 is regularly measured and displayed to provide the Network Administrator with the most current temperature status.
Chapter 3 Management through the Web Home Page 3.3.2 Home: Unit Alarm The Unit Alarm page displays the alarm status of the entire TC8518 unit. Alarm trigger criteria can be set on this page. Users must click on "Apply" for changes to take effect.
Chapter 3 Management through the Web Home Page Figure 3-3 Web Application - Home: Unit Alarm 3.3.3 Home: Unit Alarm: Alarm Trigger Criteria The Unit Alarm: Alarm Trigger Criteria page categorizes all possible alarm triggers for T1/E1, Optical, Loopback, and Physical Status alarms. The desired alarm triggers can be configured on this page.
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Chapter 3 Management through the Web Home Page T1/E1 Triggers TCLE Transmit Current-Limit Exceeded. TCLE indicates that there is a short on the T1/E1 channel's transmit pair. Common sources of this problem is damaged cables or a faulty receiver at the far end. Optical Triggers Loss of Signal (Optical) RXBER...
Chapter 3 Management through the Web Basic Settings Figure 3-4 Web Application - Home: Unit Alarm - Criteria Basic Settings The Basic Settings page allows the Network Administrator to label and describe the TC8518 in order to distinguish it fromother TC8518 units. Name, Location, Contact, Description #1-#3 All of these fields can be entered with descriptions useful to the Network Administrator.
Chapter 3 Management through the Web IP Settings Figure 3-5 Web Application - Basic Settings IP Settings The IP Settings page displays the current IP and Network Settings and allows for IP configurations. TC8518 Rev 2.2 User Manual...
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Chapter 3 Management through the Web IP Settings Figure 3-6 Web Application - IP Settings TC8518 Rev 2.2 User Manual...
Chapter 3 Management through the Web Advanced 3.5.1 IP Address Aliases IP Address Aliases feature allows the TC8518 to respond to different IP addresses. It is recommended that the alias IP address to not be in the same subnet as the Current IP Address.
Upgrade from a Network PC. Figure 3-8 Web Application - Advanced Page 3.6.1 Advanced: About TC8518 The About TC8518 page displays technical information regarding the TC8518 hardware and software. Contact information for TC Communications is also displayed. TC8518 Rev 2.2 User Manual 3-11...
Chapter 3 Management through the Web Advanced Figure 3-9 Web Application - Advanced - About TC8518 3.6.2 Advanced: Configuration File The Configuration File page allows the Network Administrator to save current TC8518 settings or load previously saved TC8518 settings. 3-12 TC8518 Rev 2.2 User Manual...
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Chapter 3 Management through the Web Advanced Figure 3-10 Web Application - Advanced - Configuration File Load Configuration File: This page allows the user to choose the location of where the configuration file is. Please refer to Figure 3-11, Web Application - Advanced - Load Configuration File.
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Chapter 3 Management through the Web Advanced Figure 3-11 Web Application - Advanced - Load Configuration File Save Configuration File: The Save Configuration File feature allows the current TC8518 settings to be saved into a file. The file will be a *.conf file. Please refer to Figure 3-12, Web Application - Advanced - Save Configuration File.
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Chapter 3 Management through the Web Advanced Figure 3-12 Web Application - Advanced - Save Configuration File The Date and Time page displays all time related fields and configurations. Localization: Displays the current date and time. The current Time Zone is displayed and can be selected from the drop table.
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Chapter 3 Management through the Web Advanced Figure 3-13 Web Application - Advanced - Date and Time 3-16 TC8518 Rev 2.2 User Manual...
Chapter 3 Management through the Web Advanced 3.6.3 Advanced: Reboot The Reboot page allows the user to reboot the unit. Figure 3-14 Web Application - Advanced - Reboot TC8518 Rev 2.2 User Manual 3-17...
Chapter 3 Management through the Web Advanced 3.6.4 Advanced: Restore Defaults The Restore Default page allows the user to reset all settings to his or her original default settings. Figure 3-15 Web Application - Advanced - Restore Defaults 3-18 TC8518 Rev 2.2 User Manual...
Chapter 3 Management through the Web Advanced 3.6.5 Advanced: Firmware Upgrade The Firmware Upgrade page allows the user to upgrade the firmware of the TC8518. Figure 3-16 Web Application - Advanced - Firmware Upgrade 3.6.6 Advanced: Upgrade From a Computer on the Network The Upgrade page allows the user to choose the file to use as the upgrade.
Chapter 3 Management through the Web Simple Network Management Protocol (SNMP) Settings Figure 3-17 Web Application - Advanced - Upgrade from a Network PC Simple Network Management Protocol (SNMP) Settings The SNMP page allows the user to enable/disable SNMP management and configure settings.
Chapter 3 Management through the Web Login Settings Figure 3-18 Web Application - Simple Network Management Protocol (SNMP) Page Login Settings The Login Settings page allows the user to define security access for the TC8518. Users: Displays the list of users with access to the TC8518. Users can be added or removed and usernames and passwords can be defined.
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Chapter 3 Management through the Web Login Settings Groups: A tool to assist users in organizing multiple TC8518 users. Figure 3-19 Web Application - Login Settings Page 3-22 TC8518 Rev 2.2 User Manual...
Chapter 3 Management through the Web T1/E1 Options T1/E1 Options 3.9.1 T1/E1 Options: Status The T1/E1 Status page displays the channel alarm status and signal strength of enabled T1/E1 channels. Channels that appear gray are disabled channels. Figure 3-20 Web Application - T1/E1 Options: Status Page 3.9.2 T1/E1 Options: Settings The T1/E1 Settings page displays the T1/E1 channel alarm status and summary.
Chapter 3 Management through the Web T1/E1 Options For example, Channel 1 is configured to have Mode T1 and Build-Out to 0-133ft. If the user would like other channels to share this configuration, the user can select multiple channels by clicking on the checkbox for each channel, choose "Copy Channel Settings From"...
Chapter 3 Management through the Web T1/E1 Options Clear Summaries on All Channels: Reset all error counters to zero. Each channel has its own respective history that can be accessed by clicking on the icon under "Action". Figure 3-22 Web Application - T1/E1 Options: Statistics 3.9.4 T1/E1 Options: Statistics Error Seconds Total The T1/E1 Statistics Error Seconds Total displays the time duration of each error for...
Chapter 3 Management through the Web T1/E1 Options Figure 3-23 Web Application - T1/E1 Options: Statistics Error Seconds Total 3.9.5 T1/E1 Options: Statistics History The T1/E1 Statistics History page displays the errors that occurred within defined time intervals for an individual channel. View: Displays previous rows of statistics history entries from the past.
Chapter 3 Management through the Web T1/E1 Options Figure 3-24 Web Application - T1/E1 Options: Statistics History 3.9.6 T1/E1 Options: Diagnostics This page displays the diagnostic options related to the T1/E1 channels. Loop Code Monitor: Selects which signal will be monitored for CSU Loop Up / Down codes.
Chapter 3 Management through the Web Optical Options Figure 3-25 Web Application - T1/E1 Options: Diagnostics 3.10 Optical Options 3.10.1 Optical Options: Optical Status The TC8518's Optical Status displays the current status of alarms in regards to optics. "Current" and "Since Last Cleared" indicate to the Network Administrator if there has been an error since the last time the TC8518 was cleared of alarms.
Chapter 3 Management through the Web Optical Options Figure 3-26 Web Application - Optical Options: Status 3.10.2 Optical Options: Optical Settings The TC8518's Optical Options displays the Optics Type, the Timing Mode, and Remote Optical Loopback time. Optics Type: Displays the type of fiber optic signal wavelength and mode. Timing Mode: Non-Looped means the TC8518 optics will transmit the signal clocked according to the local machine.
Chapter 3 Management through the Web Optical Options Figure 3-27 Web Application - Optical Options: Settings 3.10.3 Optical Options: Statistics The TC8518's Optical Statistics displays a summary of error types on the optics. Refresh Rate: The interval at which the optical statistics are updated. Range of 30 to 600 seconds.
Chapter 3 Management through the Web Ethernet Options Figure 3-28 Web Application - Optical Options: Statistics 3.11 Ethernet Options 3.11.1 Ethernet Options: Port Settings The TC8518's Ethernet Port Settings displays each Ethernet port's status and allows the configuration of port settings. Please refer to Figure 3-29, Web Application - Ethernet Options: Port Settings.
Chapter 3 Management through the Web Ethernet Options Figure 3-29 Web Application - Ethernet Options: Port Settings 3.11.2 Ethernet Options: Rate Limit The TC8518's Ethernet Rate Limit feature allows the Network Administrator to regulate the bandwidth of each of the 3 Ethernet ports. Transmitting and Receiving are separated to allow for extreme flexibility.
Chapter 3 Management through the Web Ethernet Options Figure 3-30 Web Application - Ethernet Options: Rate Limit 3.11.3 Ethernet Options: Port Statistics The Ethernet Port Statistics offers a comprehensive overview of the Ethernet traffic passing through the TC8518. It allows for a history of statistics that can be saved in regular intervals.
Chapter 3 Management through the Web Ethernet Options Figure 3-31 Web Application - Ethernet Options: Port Statistics 3.11.4 Ethernet Options: Port Statistics: Port History The TC8518 Port History offers a comprehensive list of the statistics of a specific port shown on the Ethernet Options: Port Statistics page. It is updated with an entry for each Save Rate increment on the Ethernet Options: Port Statistics link.
Chapter 3 Management through the Web Ethernet Options Figure 3-32 Web Application - Ethernet Options: Port Statistics: Port History 3.11.5 Ethernet Options: Port Statistics: Event Statistics The TC8518 Event Statistics offers a comprehensive list of the event statistics of a particular port since the unit was powered on.
Chapter 3 Management through the Web Ethernet Options Figure 3-33 Web Application - Ethernet Options: Port Statistics: Event Statistics 3.11.6 Ethernet Options: Ethernet over Fiber Ethernet over Fiber allows the user to temporarily enable Remote Ethernet Loopback without interrupting the T1/E1 signals. It is a feature to troubleshoot the TC8518's Ethernet function without interrupting the operation of the T1/E1 channels.
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Chapter 3 Management through the Web Ethernet Options Figure 3-34 Web Application - Ethernet Options: Ethernet over Fiber Settings TC8518 Rev 2.2 User Manual 3-37...
Chapter 3 Management through the Web Logout 3.12 Logout The Logout link on the left column will exit the user from the TC8518 Web Management. It will return the user to the Login page. Figure 3-35 Web Application - Logout 3-38 TC8518 Rev 2.2 User Manual...
Chapter 4 Command Line Interface Introduction Command Line Interface (CLI) is a text only interface integrated on-board the TC8518. This reference chapter defines commands, describes the parameter options, and shows examples you can choose using this tool. There are a few simple steps for using CLI.
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Chapter 4 Command Line Interface Setup Select the corresponding COM number from the pull-down menu and click on If you do not know your COM number, you can find out by going to: Control Panel/System. Under the Hardware tab, click “Device Manager”, and a new window will open.
Chapter 4 Command Line Interface Console/Telnet Management • Configuration - 9600 • Data bits - 8 • Parity - None • Stop bits - 1 • Flow Control - None Click “Apply” Console/Telnet Management The console management can be accessed through the RS-232 port on the front panel (RJ-45 connector) using a PC and terminal software (Hyper Terminal).
Chapter 4 Command Line Interface Console/Telnet Management Figure 4-1 Terminal Settings: Console Home 4.3.1 IP Settings The IP Settings allows the user to view (get) or to configure (set) IP settings. Figure 4-2 Terminal Settings: Console IP Settings 4.3.2 Login Settings The Login Settings allows the user to view or configure login details such as username, passwords, etc.
Chapter 4 Command Line Interface Console/Telnet Management Figure 4-3 Terminal Settings: Console Login Settings 4.3.3 Advanced Settings The Advanced Settings allows the user to enable Load Configuration, Reboot, and Restore to Default. Figure 4-4 Terminal Settings: Console Login Settings 4.3.4 Firmware Update The Firmware Update allows the user to update the firmware of the TC8518.
Chapter 4 Command Line Interface Console/Telnet Management Figure 4-5 Terminal Settings: Console Firmware Update 4.3.5 Serial Port Setting (Apply to Serial Expansion Card) CLI Commands Functions serial settings_get Shows serial ports current settings. serail status_get Shows serial ports current status. serial enable_set Enables/Disables serial ports.
Chapter 4 Command Line Interface Console/Telnet Management Figure 4-7 Terminal Settings: Serial Get Status 4.3.6 Phone Port Settings (Applies to Phone expansion card) FXO Expansion: CLI Commands Functions fxo port_status Shows phone lines status and caller ID settings. fxo caller_id_enable Enables/Disables caller ID feature in FXO-to-FXS mode.
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Chapter 4 Command Line Interface Console/Telnet Management CLI Commands Functions fxs caller_id_enable Enables/Disables caller ID feature in FXO-to-FXS mode. Figure 4-9 Terminal Settings: FXS Port Status TC8518 Rev 2.2 User Manual...
Chapter 5 SNMP Management Introduction The TC8518 comes standard with built-in SNMP Agent. Contact TC Communications Technical Support to get a copy of the MIB file. The TC Communications MIB file can be run on any 3rd party SNMP Management Software.
Chapter 5 SNMP Management SNMP Trap Management Figure 5-2 Third Party SNMP Manager SNMP Trap Management Figure 5-3, SNMP Trap Display shows two examples of Alarm Traps sent from the TC8518 to the SNMP Manager Software on the administrator’s desktop. Figure 5-3 SNMP Trap Display TC8518 Rev 2.2 User Manual...
Off. T1/E1 Port 1-16 Figure 6-1 TC8518 T1/E1 Port Status The Ethernet LINK/ACT LED is solid green when a port is connected and link signal is present (the signal will flash when activity is present). The FULL/COL LED will be lit depending on the incoming signal.
Warranty Breach Warning Note: Do not, for any reason, open the TC8518 unit. If you suspect of any problems with the unit, contact the Technical Support Department at TC Communications, Inc. for assistance. If the unit is opened without prior authorization from TC Communications, it will result in the loss of warranty.
Chapter 6 Troubleshooting Optic Cable Types Optic Cable Types Conventionally, fiber optic cable with yellow-colored insulation is used for Single Mode applications; gray or orange-colored insulated cable is for Multimode use. If Multimode cable is used in a Single Mode application, the test results could be erroneous and confusing.
Chapter 6 Troubleshooting Loopback Tests Figure 6-6 Loopback Unit Diagram 6.6.1 T1/E1 Local Loopback Test Local loopback is used to test wiring and the T1/E1 transceiver functionality. It can be enabled and disabled by sending a CSU Loop-up (10000) or Loop-down (100) pattern from the T1/E1 electrical side.
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Chapter 6 Troubleshooting Loopback Tests Figure 6-7 Ethernet Remote Loopback Test TC8518 Rev 2.2 User Manual...
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Chapter 6 Troubleshooting Loopback Tests Figure 6-8 Local Loopback Tests TC8518 Rev 2.2 User Manual...
Chapter 6 Troubleshooting T1/E1 CSU loop up & loop down codes Figure 6-10 Loopback Test - T1/E1 Remote T1/E1 CSU loop up & loop down codes The TC8518 supports CSU up (10000) and CSU down (100) codes by automatically enabling loopbacks. CSU line code monitoring is disabled by default and can be configured using CLI by issuing the following command: t1e1 loop_code_monitor_set Alternatively one can go to the T1/E1 Diagnostic webpage and set it up there.
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Chapter 6 Troubleshooting T1/E1 CSU loop up & loop down codes Figure 6-11 T1/E1 Remote Loop Back Signal Flow TC8518 Unit A TC8518 Unit B Functionality Loop Monitor Loop Monitor Disabled Enable Remote This setting allows the Telco to send loop codes that will enable/disable the remote loopback on Unit B for a specific T1 channel.
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Chapter 6 Troubleshooting T1/E1 CSU loop up & loop down codes Figure 6-13 T1/E1 Both Units Loop Back Signal Flow TC8518 Unit A TC8518 Unit B Functionality Loop Monitor Loop Monitor Enable Local Enable Local This setting allows the Telco to enable/disable Unit A's local loopback by sending loop codes from the CO side.
Buyer, or may give written authorization to Buyer to return the goods to TC Communications, Inc., transportation charges prepaid, for examination by TC Communications, Inc. Buyer shall bear the risk of loss until all goods authorized to be returned are delivered to TC Communications, Inc. TC Communications, Inc.
The shipping expense to TC Communications should be prepaid. The product should be properly packaged and insured. After the product is repaired, TC Communications will ship the product back to the shipper at TC's cost to U.S. domestic destinations. (Foreign customers are responsible for all shipping costs, duties and taxes [both ways].
Appendix B Safety Overview This manual contains instructions which must be observed to ensure your own personal safety and to avoid damage to devices and machinery. Certified Usage Please observe the following: the TC8518 may only be employed for the purposes described in the catalog and technical description, and only in conjunction with external devices and components recommended or approved by TC Communications.
B Safety Power Supply NOTE Appropriate testing has established that this device fulfills the requirements of a class A digital device in line with part 15 of the FCC regulations. These requirements are designed to provide sufficient protection against interference where the device is being used in a business environment.
B.3.0.2 Grounding All TC Communications products are fully grounded and are in compliance accordance with all regulations and Specifications (TC8518), on page 1-10. B.3.0.3 Housing Only technicians authorized by TC Communications are permitted to open the housing and break the seal.
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B Safety Environment • The installation location is to be selected so as to ensure compliance with the climatic limits listed in the Technical Data. • Ensure the following criteria in site selection; Room for adequate ventilation and cable routing. Reserve space at least 0.5 m at the front and rear of the unit for human access, cables, and air flow.
Glossary A front panel LED that indicates an alarm. See SNMP Query, on page 5-1. Bandwidth A range of frequencies available for signaling; the differences between the highest and lowest frequencies of a band are expressed in (Hz). Bridge A device used to connect two separate LANs or used to divide a large LAN into smaller LANs.
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Acronym for Electronic Industries Association. EIA, a standards body, has a set of standards which includes data communications and interface standards among others. Ethernet Product name for one of the first popular LAN technologies, later standardized as IEEE 802.3. Fiber Optic Thin filaments of glass or other transparent material sheathed in an insulator Cable through which a light beam may be transmitted for long distances by means of...
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A local area network is a group of PCs connected over a common medium within a building. An optical fiber that supports more than one propagating mode of light propagation. A management information base (MIB) stems from the OSI/ISO Network management model and is a type of database used for managing the devices in a communications network.
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(Open Data Interconnection Reference Model) - This is the International Standards Organization (ISO) model of how data communications systems can be interconnected. Communication is partitioned into seven function layers. Each layer builds on the services provided by those under it. Packet A grouping of data, usually consisting of data and an address header prior to being sent over a network.
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Router Similar to a bridge but provides more complex and flexible networking support. It usually also supports WANs. RS-232 An interface used between DTE and DCE employing serial binary data interchange, defined by EIA, aka. EIA-232. Similar to standard V.24 of CCITT. RSTP Rapid Spanning Tree Protocol.
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Unit status Provides the Administrator with overall report of the TC8518 JumboSwitch. Any alarm condition reported by an interface card installed in the unit monitored by this Management Interface card will not only generate an alarm local to the reporting interface card but also at the Unit Status page. This indicates that there is power supplied to the unit.
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802.1 IEEE 802.1 is a working group of the IEEE 802 project of the IEEE. It is concerned with: • 802LAN/MAN architecture • Internet working among 802 LANs, MANs and other wide area networks • 802 Link Security • 802 overall network management •...
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