TDU 120e User Manual Part Number 1202156L2 1202155L2 September 2001 61202156L2-1C
Trademarks: Windows is a registered trademark of Microsoft Corp. T-Watch is a trademark of ADTRAN, Inc. OpenViewR 901 Explorer Boulevard P.O. Box 140000 Huntsville, AL 35814-4000 Phone: (256) 963-8000 © 2001 ADTRAN, Inc. All rights reserved. Printed in USA.
The following conventions are used in this manual. Notes provide additional useful information. Cautions signify information that could prevent service interruption. Warnings provide information that could prevent damage to the equipment or endangerment to human life. Important Safety Instructions When using your telephone equipment, please follow these basic safety precautions to reduce the risk of fire, electrical shock, or personal injury: 1. 2. 3. 4.
FCC regulations require that the following information be provided to the customer in this manual. 1. This equipment complies with Part 68 of the FCC rules. The required label is attached to the bottom of the chassis. 2. An FCC compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant. See installation instructions for details. 3.
Affidavit Requirements for Connection to Digital Services • An affidavit is required to be given to the telephone company whenever digital terminal equipment without encoded analog content and billing protection is used to transmit digital signals containing encoded analog content which are intended for eventual conversion into voice band analog signal and transmitted on the network.
Affidavit for Connection of Customer Premises Equipment to 1.
( ) C. An independent training course (e.g., trade school or technical institution) recognized by the manufacturer/grantee of the equipment used to encode analog signals; or ( ) D. In lieu of the proceeding training requirements, the operator(s)/maintainer(S) is (are) under the control of a supervisor trained in accordance with _______________ (circle one) above.
Federal Communications Commission Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Canadian Equipment Limitations Notice: The Canadian Industry and Science Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company.
Limited Product Warranty ADTRAN warrants that for five (5) years from the date of shipment to Customer, all products manufactured by ADTRAN will be free from defects in materials and workmanship. ADTRAN also warrants that products will conform to the applicable specifications and drawings for such products, as contained in the Product Manual or in ADTRAN's internal specifications and drawings for such products (which may or may not be reflected in the Product Manual).
Customer Service, Product Support Information, and Training ADTRAN will replace or repair this product within five years from the date of shipment if the product does not meet its published specification, or if it fails while in service. A return material authorization (RMA) is required prior to returning equipment to ADTRAN. For service, RMA requests, training, or more information, see the tollfree contact numbers given below.
Repair and Return If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Custom and Product Service (CAPS) department to issue an RMA number.
Table of Contents List of Figures .......................................................................................................1-xxi List of Tables ...................................................................................................... 1-xxiii Chapter 1. Introduction...........................................................................................1-1 TDU 120e Overview .................................................................................................
Table of Contents Network Interface ...................................................................................... 2-6 Nx56/64 Serial Interface ........................................................................... 2-6 DS-1 (PBX) Interface .................................................................................. 2-7 Control In Port ............................................................................................ 2-7 Craft Port ...............................................
Table of Contents DS1 Monitor Jack ................................................................................................3-8 LEDs......................................................................................................................3-9 Network Status LEDs .................................................................................3-9 Port Status LEDs .......................................................................................3-10 Port 1.1 Option Card Monitor Jacks .
Table of Contents TX .......................................................................................................... 4-8 RX .......................................................................................................... 4-8 LNK ....................................................................................................... 4-8 CPU ....................................................................................................... 4-8 Chapter 5. Configuration Menu............
Table of Contents Editing the Temp Map ......................................................................5-20 Applying the Temp Map ..................................................................5-20 Copying Map .....................................................................................5-20 Reviewing Maps ................................................................................5-21 Review Map A (B) .............................................................................
Table of Contents Line ........................................................................................................ 7-3 Payload ................................................................................................. 7-3 Local Loopback ...........................................................................................7-3 Line On ................................................................................................. 7-3 Payload On ......................................
Table of Contents Management Configuration ....................................................................................8-1 Unit Access Table ......................................................................................................8-2 SNMP Read Community ...........................................................................8-4 SNMP Read/Write Community ...............................................................8-4 SNMP Trap Community ............................................
Table of Contents xx TDU 120e User Manual 61202156L2-1
List of Figures Figure 1-1. TDU 120e Option Modules ..................................................................1-5 Figure 1-2. Bridge, PBX, Video Conferencing Application Set-up.....................1-6 Figure 2-1. TDU 120e Rear Panels ..........................................................................2-5 Figure 2-2. TDU 120e Interfaces ..............................................................................2-6 Figure 2-3. Example of Chain-in ..............................................
List of Figures xxii TDU 120e User Manual 61202156L2-1
List of Tables Table 4-1. Alarm Message Display ........................................................................ 4-4 Table 5-1. Normal Mode of Operation................................................................ 5-25 Table 8-1. Unit Access Table Commands ............................................................ 8-3 Table B-1. Network Pinout of the 8-Pin Modular Connector ............................ B-1 Table B-2. Network Pinout of the Male 15-Pin D-Connector ............................
List of Tables xxiv TDU 120e User Manual 612022156L2-1
Introduction Chapter 1 TDU 120e OVERVIEW The TDU 120e is a T1/FT1 multiplexer with the following features: • Nx56/64 V.35 data port • DS-1 (PBX) interface • option slot • embedded SNMP management The TDU 120e’s option slot accepts one of many available option modules for voice and data applications.
Chapter 1. Introduction option modules provides a path for growth to accommodate future requirements. The TDU 120e offers a wide variety of network management options. The 10BaseT and control ports are compatible with both SNMP and T-Watch PRO management. An enhanced VT-100 terminal interface is also provided.
Chapter 1. Introduction Standard Features in the TDU 120e The following list describes the standard features in the enhanced TDU 120e. 61202156L2-1A • A single T1 interface. • An Nx/DBU V.35 port and a DS-1 (PBX) interface. • An inband communication channel requiring only 8k of bandwidth from a single DS0. • One option slot to house option modules with up to four additional ports, including voice and data. • Allows mix of port types to meet the data interface requirements.
Chapter 1. Introduction TDU 120e OPTION MODULES Some of the option modules available for the TDU 120e are: DSX-1 Provides a short haul T1 interface for operation with a PBX (Terminal Interface). Full Drop and Insert Permits the dropping of data and insertion of new data into the same DS0 time slot. This module includes a long haul DS-1 interface. It can also be used as a second DS-1 interface to provide an up to 3 MB aggregate throughput. Nx56/64 serial interface Provides a V.
Chapter 1. Introduction Option Module Architecture The TDU 120e features a unique architecture that allows the addition of one option module and plug-on board providing an opportunity for growth to accommodate another application. See Figure 1-1. DSX-1 Module TDU 120e REMOTE ACCESS ACO CRAFT NETWORK IN OUT MON PORT 0.2 IN OUT IN OUT MON IN OK RED OUT TEST ALARM YEL ERROR NETWORK OK TDU 120eAC TEST ALARM STATUS 0.1 0.2 PORT 1.1 1.1 PORT STATUS 1.2 1.3 1.
Chapter 1. Introduction TDU 120e CONFIGURATION APPLICATIONS The following examples illustrate possible configurations of TDU 120e applications. Router, PBX, Video Conferencing Application In this application, the Base Nx/DBU provides a V.35 interface to a router. The PBX is interfaced to the TDU 120e with the Base DS-1 interface. An OCU DP module and OCU DP plug-on board provide two switched 56 circuits for video conferencing. The 10BaseT port allows SNMP network management over the LAN. See Figure 1-2.
Installation Chapter 2 UNPACK, INSPECT, POWER UP Receipt Inspection Carefully inspect the TDU 120e for any shipping damages. If you suspect damage, file a claim immediately with the carrier and then contact ADTRAN Customer Service (see the front section of this manual for contact information). If possible, keep the original shipping container for use in shipping the TDU 120e back for repair or for verification of damage during shipment.
Chapter 2. Installation Customer Provides • Cables for any expansion modules to be used with the TDU 120e • 10BaseT cable for connection to a LAN or router (if you plan to use remote management features) POWER CONNECTION AC Powered Units Each TDU 120e AC unit is equipped with a captive eightfoot power cord, terminated by a three-prong plug which connects to a grounded power receptacle. Power to the TDU 120e AC unit must be from a grounded 90-120 VAC, 50/60Hz source.
Chapter 2. Installation GROUNDING INSTRUCTIONS Grounding instructions from the Underwriters' Laboratory UL 1950 3rd Edition are provided in this section. An equipment grounding conductor that is not smaller in size than the ungrounded branch-circuit supply conductors is to be installed as part of the circuit that supplies the product or system. 61202156L2-1 • Bare, covered, or insulated grounding conductors are acceptable.
Chapter 2. Installation • The connection to ground of the supplementary equipment grounding conductor shall be in compliance with the rules for terminating bonding jumpers at Part K or Article 250 of the National Electrical Code, ANSI/NFPA 70. • Termination of the supplementary equipment grounding conductor is permitted to be made to building steel, to a metal electrical raceway system, or to any grounded item that is permanently and reliably connected to the electrical service equipment ground.
Chapter 2. Installation IDENTIFICATION OF REAR PANEL LAYOUT Figure 2-1 shows the configuration of the rear panel of the TDU 120e (AC powered and DC powered units). TDU 120e AC TDU 120e DC Figure 2-1.
Chapter 2. Installation TDU 120e Interfaces The TDU 120e rear panel is equipped with an Nx/DBU data port, a DS-1 interface, an option slot, management interfaces, an external alarm connector, and a T1 interface. See Figure 2-2. 10BaseT PC or Modem Network Control Chain Input Output Chain Input NI TDU 120e NI TDU 120e DS-1 DS-1 Nx56/64 Option PBX V.35 Chain Output Nx56/64 Option DS-1 V.35 Figure 2-2.
Chapter 2. Installation DS-1 (PBX) Interface The DS-1 interface provides a T1 for a PBX or other equipment. This port complies with ANSI T1.102. It can be software configured for either long-haul or short-haul. Control In Port The control port input provides an RJ-45 input from a PC or a modem for control of the TDU 120e. You can also use it as a chain input from another TDU 120e or TSU 100. For more information, see Appendix B.
Chapter 2. Installation POWER UP TESTING When shipped from the factory, the TDU 120e is set to factory default conditions. At the first application of power, the unit automatically executes a memory self-test. A full self-test can be run from the terminal. A passcode and unit ID may be set using the UTILITY menu. See page 6-3. Self-Test When... Initiating a self-test Then... The terminal displays System Self-test Now Testing and Memory Test Now Testing. The test LEDs are illuminated.
Chapter 2. Installation INITIALIZATION Set User Passcode The TDU 120e is designed to operate with or without the use of a passcode. The default condition is without a passcode. If the unit is to be remotely accessed using T-Watch PRO, you must enter a passcode. When managing a number of units, the passcode can be the same for all the units. The passcode should be a number easily remembered. Once entered, the passcode is required to access any operation other than viewing.
Chapter 2. Installation Chain In (PC) The unit can be controlled from an external PC connected directly or via modem to the Chain-In port. When using Chain-In, the selection of the Control Port baud rate from 9600 (factory default), 1200, 2400, or 4800, 19200, or 38400 must be made using the UNIT CONFIGURATION menu. See Unit Menu on page 5-14 for details. Chain In/Chain Out TDU 120e units and other TDUs and TSUs can be linked together to form a chain.
Chapter 2. Installation At this point, the unit initialization procedure is concluded. If the unit is to be configured remotely, there are no additional items necessary to complete prior to executing remote configuration. The Passcode, the Unit ID, and the Control Port settings are stored in a nonvolatile memory. This ensures they are operable for subsequent power-up sequences.
Chapter 2.
Operation Chapter 3 MENU OPERATION The TDU 120e uses a VT-100 type terminal to display control and monitor menus. Initiate this mode by keying in PTT on the terminal once it is connected to the Control In or Craft port. When you begin the Telnet session, you will be prompted for a password. The default password is ADTRAN. You can change this password using the MANAGEMENT submenu. For detailed information on this method of control, see the Telnet/Terminal Main Menu on page 3-5.
Chapter 3. Operation Sample Terminal Screen with TDU 120e Menu An example of a PC screen with a TDU 120e menu is shown in Figure 3-1. Main Menu 1) Status 2) Config 3) Util 4) Test 5) Remote Menu Access 6) Management Config 7) Flash Download 8) Quit Session Command: Figure 3-1. Sample Terminal Screen with TDU 120e Menu General Menu Traversal The TDU 120e uses a multilevel menu structure containing both menu items and data fields. All menu operations and data are displayed on the terminal.
Chapter 3. Operation The following steps and Figure 3-2 describe how to activate the alarm list option from the Status Menu. Step Action Result 1 Activate the STATUS menu using The cursor will flash on the the arrow keys or by pressing 1. number next to the activated selection. 2 Press Enter. 3 Use the arrow keys to view submenu items. 4 Choose an item on the submenu The cursor will flash on the such as ACTIVE ALARMS. number next to the activated selection. 5 Press Enter.
Chapter 3. Operation Edit the Data Field You can edit data fields preceded by a colon (:). To edit a data field perform the following steps: Step Action Result 1 Position the cursor on the submenu The cursor moves to the data item number and press Enter. field (to the right of the submenu item name). 2 Using the space bar, scroll to scan the available value settings. The value settings display one-at-a-time in the data field position.
Chapter 3. Operation The Nx is located in the option slot and is the second port in that slot. The ports that are built into the TDU 120e are referenced as Slot 0. The Nx/DBU is designated as 0.1 and the DS-1 is referenced as 0.2. MENU STRUCTURE Telnet/Terminal Main Menu The TDU 120e uses a multilevel menu structure containing both menu items and data fields. All menu operations and data display in the terminal window.
Chapter 3. Operation Only one Telnet/terminal session may be active at a time. Menu Options The opening menu is the access point to all other operations. Each MAIN menu item has several functions and submenus to identify and access specific parameters. Status Displays all relevant information for the network and DTE interfaces. For detailed information on status options, see Chapter 4, Status Menu.
Chapter 3. Operation Management Configuration Displays management information. For detailed information, see Chapter 8, Remote/Management Menus. Flash Download Allows you to manually perform a Flash download. For detailed information, see Chapter 8, Remote/Management Menus. Quit Session Terminates the Telnet/terminal session. FRONT PANEL The TDU 120e front panel monitors operation and controls the configuration of the unit. The TDU 120e front panel is shown in Figure 3-4.
Chapter 3. Operation ACO Switch The Alarm Cut-Off (ACO) switch deactivates the alarm relay after an alarm condition has occurred. If the alarm that activated the alarm relay is cleared, then reoccurs, the alarm relay will re-energize. Remote LED The remote LED (yellow) indicates a management session (terminal mode or Telnet) is active. The LED does not activate (turn on) during SNMP sessions.
Chapter 3. Operation LEDs Network Status LEDs The network status LEDs display the operational condition of the network interface located on the controller board in the unit. LED Display Color Indicates that... OK Green The operation is in the normal mode and no errors have been detected. Test Yellow The network interface is operating in a test mode. This includes a self-test or a test loopback. When lighted, this LED also indicates that normal data flow is not occurring on the network interface.
Chapter 3. Operation Port Status LEDs LED Display Color Indicates that... OK Green The operation is in the normal mode and no errors have been detected. Test Yellow One of the interfaces is operating in a test mode. This includes a self-test or a test loopback. When lighted, also indicates that normal data flow is not occurring in at least one of the module ports. Alarm Red An alarm condition has been detected. Any alarm condition will activate the alarm relay for the external alarm device.
Chapter 3. Operation ALTERNATE METHODS OF CONTROL T-Watch PRO (ADTRAN PC Program) T-Watch PRO is the ADTRAN PC control program. It provides complete control over the configuration of the TDU 120e using a graphical interface. The T-Watch PRO program displays the same status and performance data as the terminal screen. This data is displayed in tables and graphs.
Chapter 3. Operation Setting up the TDU 120e to Work over an EIA-232 Connection To set up the TDU 120e to work with T-Watch PRO over a direct EIA-232 connection, follow these steps: Step Action 1 Set the Unit ID and set a passcode. See page 6-3. 2 Set the control port rate to the same setting as the PC Com port. 3 Connect the PC Com port to the Chain-In port on the TDU 120e using the DB-25 adapter and modular cable provided.
Chapter 4 Status Menu STATUS The STATUS menu branch allows you to view the status of the TDU 120e operation. See Figure 4-1. 1) NETWORK (NI) PERFORMANCE REPORTS 2) NETWORK (NI) ERRORS %AS %EF ES SES UAS NETWORK (NI) RED ALARM LOSS OF SIGNAL END OF LIST 1)STATUS 3) ACTIVE ALARMS 4)VIEW HISTORY (HISTORY LIST) END OF HISTORY 5) PORT STATUS Nx/DBU (0.1) 6) REMOTE PORT 7) CLEAR PORT ALARM DS-1 (0.
Chapter 4. Status Menu Network (NI) Performance Reports The NETWORK INTERFACE PERFORMANCE REPORTS (see Figure 4-2) display the performance data. The TDU 120e maintains this performance data on the network in compliance with ANSI T1.403 and AT&T document TR54016. The data displayed is data accumulated over the last 15 minutes and over the last 24 hours.
Chapter 4. Status Menu Network Interface (NI) Errors The NI Errors submenu displays the types of errors the Network Interface (NI) detects. A blinking CSU error LED indicates that network errors are detected. The asterisk (*) above an item indicates the type of errors detected. The error types are listed below: CRC CRC-6 bit errors based on the FDL. This is valid only in ESF mode.
Chapter 4. Status Menu Table 4-1. Alarm Message Display Active Alarms Network (Ni) Red Alarm Loss Of Signal End Of List View History This menu item both displays and clears the accumulated status changes of the unit. VIEW HISTORY displays a history of the last 20 status changes in the unit, including the date, time, and type of change. The unit also records for viewing the date and time an alarm became active and inactive, as well as the date and time of test activation and deactivation.
Chapter 4. Status Menu Nx/DBU (0.
Chapter 4.
Chapter 4. Status Menu DS-1 (0.2) Menu Items (DS-1 Errors) CRC An asterisk displays under the CRC if there are CRC errors in extended superframe format (ESF) mode. If the DS-1 is configured for D4 Frame format, the terminal displays N/A. BPV An asterisk displays under the BPV if the DS-1 detects bipolar violations. SLIP An asterisk displays under the SLIP if the DS-1 detects frame slips. This is caused by multiple clock sources in the application.
Chapter 4. Status Menu Clear Port Alarm Clears the LINK FAILED alarms on option modules that have been removed from the TDU 120e chassis. Ethernet Status TX Indicates that data is being transmitted from the 10BaseT port. RX Indicates that data is being received by the 10BaseT port. LNK Indicates the current status of the 10BaseT link integrity test (this should always be on when the unit is connected to a functional 10BaseT hub). CPU Active when the CPE is accessing the 10BaseT interface.
Chapter 5 Configuration Menu CONFIG The CONFIGURATION menu sets the TDU 120e operational configuration, including all network interface parameters, the allocation of the DS0s, and the port parameters. See the TDU 120e Config Menu Tree on page 5-2. Menu flow is depicted from left to right. At every level of the menu, pressing Escape returns the system to the previous menu level. Pressing Escape repeatedly returns the system to the MAIN menu.
Chapter 5. Configuration Menu 1) NETWORK (NI) See Figure 5-2 on page 5-3. 2) UNIT See Figure 5-3 on page 5-4.
Chapter 5. Configuration Menu 1) FORMAT ESF/D4/SLC96 2) CODE B8ZS/AMI 3) YELLOW ALARM ENA/DISA 4) TRANSMIT PRMS ON/OFF NORMAL (CSU) 5) TIMING MODE INTERNAL/NETWORK (NI) BASE DTE/U-BR1TE (SLOT 1) BASE DS-1/SECONDARY (SI) 1) NETWORK 6) SET LINE BUILD OUT 0.0/ 7.5/ 15.0/ 22.
Chapter 5. Configuration Menu 1) CONTROL PORT RATE 38400 / 19200 / 9600 / 2400 / 1200 2) TRAPS ENABLE/DISABLE 3) ACCESS DIRECT/DIAL NONE 4) INIT. MODEM CUSTOM HAYES MOTOROLA USR COURIER 2) UNIT 5) CONTROL PORT: NORMAL 6) IP ADDRESS 000.000.000.000 7) SUBNET ADDRESS: 000.000.000.000 8) DEFAULT ROUTER: 000.000.000.000 9) SLIP RATE: 38400 / 19200 / 9600 / 2400 / 1200 10)SLIP FLOW CONTROL NONE/HARDWARE 11) PROXY TRAPS ENABLE/DISABLE 12) EXTERNAL ALARMS ENA/DISA 13) EXIT Figure 5-3.
Chapter 5. Configuration Menu NETWORK (NI) This menu item accesses the configuration of parameters associated with the network interface in the base unit. There are nine submenu items that include setting the format, the line build out (LBO), and the timing mode. Submenu items do not include setting the parameters which may be necessary for a secondary interface (DS-1 Passthru, etc.). Network (NI) Menu Items FORMAT Sets the frame format for the NI. Choices: D4, ESF, SLC96.
Chapter 5. Configuration Menu TIMING MODE Selects the clock source for transmission toward the network from the NI. Choices: NETWORK, BASE DTE, BASE DS-1, NORMAL (CSU) (only with DSX-1 option card), U-BR1TE (only with U-BR1TE option card), INTERNAL, and SECONDARY (SI) (only with secondary port option card). The selected clock option always designates the clock source for transmission. Clocking necessary for receiving data is always recovered from incoming data.
Chapter 5. Configuration Menu Network Timed The network is the source of timing. The received data clocking is looped back to the network, where it is used to determine the transmission timing. This option is also referred to as loop timed as the transmission clock is derived from the received clock. See Figure 5-4. INTERNAL OSCILLATOR T1 Transmit SECONDARY INTERFACE NETWORK INTERFACE OPTION CARD T1 Receive BASE Nx56/64 BASE DS-1 DTE CLOCK PBX Figure 5-4.
Chapter 5. Configuration Menu Base DS-1 The PBX is the source of timing. The TDU 120e uses the clock derived by the Base DS-1 interface for transmission timing. See Figure 5-5. INTERNAL OSCILLATOR T1 Transmit SECONDARY INTERFACE NETWORK INTERFACE OPTION CARD T1 Receive BASE Nx56/64 BASE DS-1 DTE CLOCK PBX Figure 5-5.
Chapter 5. Configuration Menu Base DTE Timing The Base DTE is the source of timing. The TDU 120e uses the incoming DTE clock to determine the transmission timing. This is typically used in applications where it is necessary to have the DTE as the primary clock source (such as limited distance line drivers). See Figure 5-6. INTERNAL OSCILLATOR T1 Transmit SECONDARY INTERFACE NETWORK INTERFACE OPTION CARD T1 Receive BASE Nx56/64 BASE DS-1 DTE CLOCK PBX Figure 5-6.
Chapter 5. Configuration Menu Internal Timing The TDU 120e is the source of timing. The TDU 120e is configured to use its own internal oscillator as the source of timing. Applications include private line driver circuits where one end is set to network and the other to internal. See Figure 5-7. INTERNAL OSCILLATOR T1 Transmit SECONDARY INTERFACE NETWORK INTERFACE OPTION CARD T1 Receive BASE Nx56/64 BASE DS-1 DTE CLOCK PBX Figure 5-7.
Chapter 5. Configuration Menu Secondary Timing The secondary interface is the source of timing. The TDU 120e uses the clock derived by the secondary interface for transmission timing. See Figure 5-8. INTERNAL OSCILLATOR SECONDARY INTERFACE T1 Transmit NETWORK INTERFACE OPTION CARD T1 Receive BASE Nx56/64 BASE DS-1 DTE CLOCK PBX Figure 5-8.
Chapter 5. Configuration Menu Normal (CSU) Timing The typical timing option arrangement is shown in Figure 5-9. The PBX is looped timed sending data to the TDU 120e which is actually synchronous to the received data. The Network Interface (NI) is the actual source of all timings. This timing option is the same as that typically used for CSUs. It works equally well when the PBX is the source of timing. In that configuration the network would not be providing timing.
Chapter 5. Configuration Menu U-BR1TE The timing selection U-BR1TE works like NORMAL (CSU) except that timing is derived from the U interface on port 1.1. Set Line Buildout Selects the line buildout for the network interface. In AUTO mode, the TDU 120e sets the LBO based on the strength of the receive signal and displays the selected value. Choices: 0.0 dB, 7.5 dB, 15 dB, 22 dB, and Auto. To activate the -36 dB receiver sensitivity, set the LBO to AUTO.
Chapter 5. Configuration Menu Alarm Format Sets the alarm format to 13 frames or 16 frames. Choices: ORB-13, ORB-16 BPV Threshold Sets the threshold for BPVs to trigger an alarm. Choices: 10-4, 10-5, 10-6 Exit This selection will exit to the main configuration menu. Unit Menu The Unit menu changes the baud rate of the Control In port and the setup of the Dial Out port. The menu items are: Control Port Rate Sets the baud rate for communication with the PC or modem.
Chapter 5. Configuration Menu Control Port Selects the TCP/IP physical interface: Normal (10BaseT Ethernet) or SLIP using the RS-232 serial port. Choices: NORMAL or SLIP If the Control Port option is set to SLIP, the RS-232 port cannot be used as a terminal interface. IP Address This is the IP address that uniquely identifies the TDU 120e on a TCP/IP network. This address is composed of four decimal numbers, each in the range of 0 to 255, separated by periods.
Chapter 5. Configuration Menu SLIP Flow Control This is used to activate flow control on the Chain-In port when used as the SLIP interface. Hardware mode uses RTS and CTS. Choices: NONE, HARDWARE Proxy Traps This determines whether or not traps are forwarded to the IP Interface from units being “proxied” for. Choices: ENABLE, DISABLE External Alarm Sets unit to accept or reject external alarms attached to Pin 6 or Pin 7 of the Chain-In Port. A connection to ground indicates an alarm condition.
Chapter 5. Configuration Menu After editing Map A, press Enter to record the Map A settings and activate the selection fields for Map B. Use the same operation to edit switching time for Map B. When ESF is used with an FDL channel between units, the units automatically coordinate the automatic map switch by sending a map switch command from end-toend over the FDL. Only one end needs to be set to AUTO for this to work.
Chapter 5. Configuration Menu DS0 Maps Configuration Menu The DS0 maps configuration menu takes advantage of the 24-line VT-100 display. Upon entering this menu, the current Temp (temporary) map displays and is followed by nine selections that you can use for configuring and reviewing map information. See Figure 5-10.
Chapter 5. Configuration Menu Creating a DSO Map To configure a DS0 Map, perform the following steps: Step Explanation 1 Initialize the TEMP Map to one of three configurations (current Map A, current Map B, or all IDLE). This step is optional. 2 Edit the Temp Map so that it reflects the desired map configuration. 3 Replace the current DS0 Map A or B configuration with the Temp map configuration.
Chapter 5. Configuration Menu Editing the Temp Map If further changes to the TEMP map are needed, do the following: Step Action Explanation 1 Use selection 7 to enter the Upon entering this mode, the cursor Temp map edit mode. location moves to DS0 number one in the DS0 field of the Temp map. 2 Move the cursor from one Locate the DS0 number whose DS0 to another by using the assigned port needs to be changed. up and down arrows 3 Press Enter.
Chapter 5. Configuration Menu TEMP DS0 A DS0 B Figure 5-11. DS0 Map Designations Reviewing Maps Selections 4 through 6 give a summary of the number of ports assigned to Map A, Map B, and the Temp map, respectively. The menu items and their descriptions follow: Copy Map A (B) to Temp Map Copies the current map A (B) into a TEMP map area. This permits modification without disturbing the existing map.
Chapter 5. Configuration Menu Selecting APPLY TEMP MAP TO MAP A (B) will not disrupt the operation of unmodified ports. Review Map A (B) Permits a quick review of the number of DS0s assigned to each port and the number of unassigned DS0s (IDLE or TST) as defined in the currently applied Map A (B). Review Temp Map This menu item is operated the same as REVIEW MAP A (B). Edit Temp Map The map in the TEMP file can be edited to whatever configuration is desired.
Chapter 5. Configuration Menu The CONFIG menus for options ports are described in separate sections of the manual supplied with the option card. Nx/DBU (0.1) Menu Items The Nx/DBU port has two main menus: NX56/64 CONFIG -- Nx operation and DBU CONFIG -- DBU operation. Nx56/64 Config Under NX56/64 CONFIG, the menu items are: DS0 RATE This sets the base DS0 rate of the interface. The actual data rate depends on the number of DS0s assigned to the Nx port.
Chapter 5. Configuration Menu CTS Used to control characteristics of CTS. Choices: NORMAL, (see Table 5-1 on page 5-25) or FORCE ON DCD Data Carrier Detect. Indicates to the DTE when a valid signal is being received at the Network Interface. Choices: NORMAL (see Table 5-1 on page 5-25) or FORCE ON DSR Data Set Ready. This signal indicates to the DTE when the DCE is turned on and ready for operations.
Chapter 5. Configuration Menu Table 5-1. Normal Mode of Operation RTS V.54 511 TST Self Test Loopback ON Active CTS Follows OFF OFF DCD — — OFF DSR — OFF OFF Where “—” = don’t care Force On = On under all conditions Netwk Test Active OFF — OFF No DS0 Mapped OFF OFF OFF Network Alarm OFF OFF — This table indicates conditions which cause the PORT CONTROL SIGNALS to be deactivated.
Chapter 5. Configuration Menu NET/DATA FAIL Backup occurs on the same conditions as NET FAIL plus loss of data transitions on the data the Nx56/64 receives from the network. Pattern Verify Selects whether or not the DBU will use its pattern generator and receiver to authenticate backup attempts. When the local and remote units are both Nx/DBUs, set to ENABLE; otherwise set to DISABLE.
Chapter 5. Configuration Menu Backup Testing Selects the options for the automatic ISDN verification feature of the Nx/DBU. Verification of the backup circuit does not disrupt data on the T1. Backup Test: Selects the frequency of automatic backup circuit verification by the DBU. Choices: MANUAL, HOURLY, DAILY, WEEKLY Test Hour: Selects the hour of the day the Backup test will occur. Choices: 0 - 23 Test Day: If weekly Backup test is selected, selects which day to perform the test.
Chapter 5. Configuration Menu Trap in DBU: If traps are enabled (see UNIT CONFIGURATION), this parameter will send either a single trap upon going into a DBU session or send repeated traps for the duration of the DBU session. Choices: SINGLE, REPEATED DS-1 (0.2) Menu Items Format Format sets the frame format for the base DS-1 interface. Choices: D4, ESF Code CODE sets the line code for the base DS-1 interface.
Chapter 5. Configuration Menu Robbed Bit Signaling This menu option is used to enable/disable robbed-bit signaling. Whenever the base DS-1 interface is connected to terminal equipment (e.g., PBX/SW56) for voice or dialed data services, this option should be enabled. Exception: When the terminal equipment is using a form of common channel signaling (e.g., PRI). For applications requiring robbed-bit signalling as well as a messaging channel (e.g.
Chapter 5.
Utility Menu Chapter 6 UTIL The UTILITY menu displays and sets system parameters. See Figure 6-1. This includes setting the time and date, resetting all parameters to factory values, or reinitiating the unit. This menu also displays the unit software revision and the unit ID setting.
Chapter 6. Utility Menu Menu flow is depicted from left to right. At every level of the menu, press Escape to return the system to the previous menu level. Pressing Escape repeatedly returns the system to the Main menu. Time/Date This menu option displays or edits the current time and date. The TDU 120e maintains the time and date during power-off conditions. If you want to... Do this...
Chapter 6. Utility Menu Set Passcode Change/Set a Passcode The passcode can be changed or set at any time or eliminated altogether through the Utility menu item SET PASSCODE. The passcode can be numeric only. After entering the desired passcode, press Enter. Set a null passcode at the SET PASSCODE menu by pressing Enter without any numbers. This sets a null passcode and grants unlimited access.
Chapter 6. Utility Menu To Set the Unit Identification In the UNIT ID menu under the UTIL menu, enter any value between 2 and 999. The number 1 is reserved for the PC. Pressing Enter records the Unit ID number and establishes its availability for operation by remote control. The unit proceeds to the SET CONTROL PORT prompt. No Unit ID Desired Without entering any numbers at the Unit ID prompt, press Enter.
Chapter 7 Test Menu TEST The TEST menu initiates different types of unit tests and displays test results. The TEST menu contains four items. See Figure 7-1.
Chapter 7. Test Menu Executing tests will disrupt some of the normal operation. See individual menu items concerning tests before executing. Menu flow is depicted from left to right. At every level of the menu, pressing Escape returns the system to the previous menu level. Pressing Escape repeatedly returns the system to the MAIN menu. Network Tests Network tests control the activation of loopbacks and the initiation of data test patterns. Network tests are run on the Network Interface (NI).
Chapter 7. Test Menu Network Interface Loopbacks Network interface loopbacks affect the entire T1 data stream. See Figure 7-2. The two types of network loopbacks are: Line Loops all of the received data back toward the network. The transmitted data is the identical line code that was received, including any bipolar violations or framing errors. Payload Similar to line loopback, except that the framing is extracted from the received data and then regenerated for the transmitted data.
Chapter 7. Test Menu No Loopback Deactivates the loopback. Scroll to select a setting and press Enter to record the setting. Remote Loopback Activates the same loopbacks as LOCAL LOOPBACK, but at the far end. Uses either the inband loopup code as specified by ANSI T1.403 for line loopback (ATT In-Band LLB), or the FDL as specified in ANSI T1.403 for payload and line loopback codes. The following options are available: ATT In-Band LLB Activates the line loopback using inband code.
Chapter 7. Test Menu After a REMOTE LOOPBACK option is selected, the TDU 120e verifies that the far end is actually in a loopback by checking for the receipt of a code looped back from the far end. Once the REMOTE LOOPBACK type is selected, the terminal displays the loopback progress by displaying LOOPING until loopback is verified. Test Patterns All Ones Sends an all ones pattern to the network. All Zeros Sends an all zeros pattern to the network.
Chapter 7. Test Menu QRSS TST DS0s Inserts a QRSS pattern in those DS0s mapped as TST in the currently active map (A or B). None Terminates pattern generation. QRSS always runs at 64K/DS0. Instructions for Generating a QRSS Test Pattern Step Action 1 Select QRSS ALL DS0s. 2 Press Enter to record the selection. The TDU 120e starts to generate a QRSS test pattern and inserts the pattern into all DS0s. 3 To end the test, select None. Pattern Result Displays the results of the test currently active.
Chapter 7. Test Menu SES The number of seconds with more than 320 bit errors. *SYNC Indicates if pattern sync is (YES) or is not (NO) valid. The asterisk (*) indicates if pattern sync has been lost since the start of testing. Clear results by pressing C. The results are accumulated until the test pattern is set to NONE or CLEARED. Using TST DS0s for testing can be very useful, particularly in Fractional T1 applications.
Chapter 7. Test Menu Run Self-Test The self-test checks the integrity of the internal operation of the electronic components by performing memory tests and by sending and verifying data test patterns through all internal interfaces. Although actual user data cannot be passed during these tests, the self- test can be run with the network and DTE interfaces in place and will not disturb any external interface. The memory portion of the self-test automatically executes upon power-up.
Chapter 7. Test Menu A test pattern is sent from the controller through a loopback on all other boards and is checked on the controller. This verifies the data path, clocks, and control signals. If a failure is detected, note the failure number prior to contacting ADTRAN Technical Support (see page xi of this manual). The execution of the self-test will disrupt normal data flow and prevent remote communication until the self-test is completed.
Chapter 7. Test Menu OFF The loop is deactivated. REM V.54 Cont. The remote loopback causes a continuous V.54 code to be sent to the far end. The Nx at the far end activates a PORT/LOCAL loopback upon detection of the V.54 code. The TDU 120e checks the remote loopback activation by detecting a proper response from the remote end. While waiting for the response, the display shows Looping. If successful, the display changes to Looped-Up. If unsuccessful, the display shows Failed.
Chapter 7. Test Menu TEST OFF Turns off DBU tests. FORCE BACKUP Forces a backup regardless of time-of-day lockouts or network conditions. INTERFACE TST Causes the external DCE to dial its stored number. After the connection is established, the DBU sends a test pattern to verify the backup network. This test does not disrupt data or the primary network. DBU DATA/CNTRL Allows status of DCD and RI to be monitored while the INTERFACE TST is on.
Chapter 7.
Chapter 8 Remote/Management Menus The REMOTE/MANAGEMENT menu initiates Telnet/terminal sessions with remote devices and displays various management information. REMOTE MENU ACCESS This menu displays Telnet menus for a remote device (may be another TSU/TDU or any other ADTRAN product that supports Telnet via its EIA-232 chain port). After selecting this option, the user may choose to connect to a device entered in the Unit Access Table or enter a unit ID for a unit not in the Unit Access Table.
Chapter 8. Remote/Management Menus UNIT ACCESS TABLE This menu edits/creates the Unit Access Table and stores the Unit ID, Passcode, and Unit Type for units connected via chain ports or connected remotely to the TSU/TDU (see Figure 8-1). An entry in the table is required only to support proxy SNMP MIB access or polling. For MIB access, an entry is required only if the unit's passcode is not the same as the DEFAULT UNIT PASSCODE, or the unit is a single port TSU Standalone.
Chapter 8. Remote/Management Menus The following chart describes each command of the Unit Access Table. Table 8-1. Unit Access Table Commands Command Add New Unit What it does... Adds a new device to the table. You must enter a device Unit ID, passcode, Unit type, and polled flag. Unit type can be: Standard (which supports any TSU/TDU Multiplexer and the ISU 512), or TSU Standalone (a single port TSU with no option card slot).
Chapter 8. Remote/Management Menus SNMP Read Community SNMP READ COMMUNITY NAME defaults to public. NMSs using this community name have Read access for all supported MIB objects but do not have the ability to change MIB objects. This value must be set to the same value on both the TDU 120e and the NMS (OpenView®, etc.) in order for the NMS to have Read access to MIBs supported by the TDU 120e. This value must be a text string of 16 characters or less.
Chapter 8. Remote/Management Menus Host 2 Trap IP Address Defaults to 0.0.0.0. Second destination address for SNMP traps. Host 3 Trap IP Address Defaults to 0.0.0.0. Third destination address for SNMP traps. Host 4 Trap IP Address Defaults to 0.0.0.0. Fourth destination address for SNMP traps. System Name A text string that can uniquely identify an SNMP managed node.
Chapter 8. Remote/Management Menus Ping IP Host Allows the user to ping a specific IP address. Telnet/Terminal Timeout The TDU 120e terminates a Telnet or terminal session if no activity is detected for this length of time. Only one Telnet or terminal session may be active at one time. This timeout prevents an unattended session from blocking interactive access to the agent. The default value is five minutes.
Chapter 8. Remote/Management Menus TFTP Server IP Address: 0.0.0.0. Enter the IP address of the server where the upgrade file resides. The server address is not retained over a power cycle. TFTP Server File name: T120e.biz Enter the name of the upgrade file that resides on the TFTP Server. The default filename may already be correct. Begin Firmware update. Select this item and press Enter to begin the flash upgrade using TFTP.
Chapter 8.
Appendix A Understanding SNMP WHAT IS SNMP? The term SNMP broadly refers to the message protocols used to exchange information between the network and the managed devices, as well as to the structure of network management databases. SNMP came about as local area network (LAN) environments became standardized over the past ten years and multi-vendor equipment grew with competition. It became necessary to manage the various vendor equipment from a single control console.
Appendix A. Understanding SNMP MIB This is an index to the organized data within a network device. It defines the operating parameters that can be controlled or monitored. When requesting the network manager to retrieve or modify a particular piece of information about a network device, the network manager transmits the request to that network device. The agent in that device interprets the incoming request, performs the requested task, and sends its response to the network manager.
Appendix A. Understanding SNMP Message The network device issues two types of messages: GetResponse The response to a network manager GETREQUEST or GETNEXTREQUEST command. Trap An unsolicited message issued by a network device to report an operational anomaly or an alarm condition to the network manager. These messages are typically encased within informational packets and transported over the LAN or WAN (wide area network).
Appendix A. Understanding SNMP TDU 120e SNMP Access By default, SNMP MIB Browser access to the TDU 120e IP address with the configured community names, accesses the host. The TDU 120e can also act as an SNMP proxy agent for external units. To access MIB variables on externally chained devices, append a period and the Unit ID of the device to the Read and Read/Write community names. Example: If... Then... The Read community name Specify public.
Appendix A. Understanding SNMP SNMP Trap Configuration Traps received by the TDU 120e from external units and the host unit are converted into SNMP traps and forwarded to the configured NMS. The source of the trap is uniquely identified at the NMS by a combination of the IP address of the TDU 120e, and the Unit ID of the sending device. The Unit ID is present in the trap packet appended to the end of the trap community packet name, for example public.4.
Appendix A. Understanding SNMP SNMP MIB Browser Configuration The following steps are required to configure Network Manager MIB variable access through the TDU 120e: Step 1 Action Load the desired product MIBs on the network management station. Example: If the administrator is managing TDU 120e and ISU 512 devices, load TDU 120e.MIB, ISU512.MIB, and RFC1406.MIB. 2 Create device entries in the NMS database for all units that are to be managed through the TDU 120e.
Appendix A. Understanding SNMP SNMP MIB Files The TDU 120e supports several standard MIBs including: • MIB-II (RFC-1213), • DS1 T1/E1 MIB (RFC-1406), and • the Ethernet MIB (RFC-1643). It also supports several ADTRAN enterprise-specific MIBs including: • ADTRAN Product MIB (ADTRAN.MIB), • ADTRAN DS1 extensions MIB (ADS1.MIB), and • all TSU/TDU Enterprise MIBs, such as TDU 120e.MIB. The standard MIB files are usually included with most SNMP network management software.
Appendix A.
Connector Pinouts Appendix B WIRING Network On the rear of the TDU 120e are two connectors labeled NETWORK. These connectors are used for connecting to the network. See Table B-1 for the pinout for the 8-pin modular connector and Table B-2 on page B-2 for the pinout of the male 15-pin D-connector. Table B-1.
Appendix B. Connector Pinouts Table B-2.
Appendix B. Connector Pinouts Control-Out/Chain-Out This is used to connect to another TDU/TSU family multiplexer chain-in connector. See Table B-4 for the pinout for the chain-out connector. Table B-4. Chain-Out Pinout Pin Name 1 GND 2 UNUSED 3 TX DATA 4 UNUSED 5 RX DATA Description Ground - connected to unit chassis. Data transmitted to chained units by the TDU 120e. Connect to RX DATA of the next unit (chain-in pin 3). Data received from chained units by the TDU 120e.
Appendix B. Connector Pinouts Craft Port This is used as an RJ-45 port for connection to a computer or modem (Control In) or to another TSU/TDU family multiplexer or TSU 100 (Chain-In). See Table B-5 for the pinout for the craft port connector. Table B-5.
Appendix B. Connector Pinouts Nx56/64 DTE (V.35) See Table B-6 for the V.35 pinout Nx56/64 DTE pinout. Connector type V.35 Table B-6. V.
Appendix B. Connector Pinouts Base DS-1 (PBX) On the rear of the TDU 120e are two connectors labeled DS-1. These connectors are used for connecting to a PBX or other terminal equipment. See Table B-7 for the pinout of the 8-pin modular connector and Table B-8 on page B-7 for the pinout of the female 15-pin D-Connector. Table B-7.
Appendix B. Connector Pinouts Table B-8.
Appendix B. Connector Pinouts 10BaseT This is used to connect the TDU 120e to the local area network. See Table B-9. Connector type (USOC), Shielded 8-pin, module TDU 120e. Table B-9. 10BaseT Ethernet Connector Pin Name (To Nic) 1 TX1 2 TX2 3 RX1 6 RX2 Alarm This is used to connect the TDU 120e to an external alarm device. See Table B-10. Connector Type 4-pin, Eurostyle connector Table B-10.
Appendix C System Messages This appendix lists and defines the alarm and status messages that appear on the monitor screen. ALARM MESSAGES Network Interface (NI) Red Alarm NI unable to frame align with incoming signal. Yellow Alarm Remote alarm indication (RAI) being received from far end. Blue Alarm Unframed all ones (1s) (AIS) being received at NI. Loss of Signal No signal detected at NI.
Appendix C. System Messages PLL Alarm Unable to achieve Phase Locked Loop on the clock provided by the network interface. Zeros Alarm All zeros (0s) data being sent toward the network interface. FIFO Alarm Error in propagation of data through the FIFOs. No EXT Clock No external transmit clock at DTE (only appears if EXT CLK is selected).
Appendix C. System Messages Status Messages Network Interface (NI) Payload On Payload loopback activated. Line On Line Loopback activated. Loopback Off All loopbacks deactivated. Factory Restore Factory setting restored. Power On Unit powered on. Self-Test Internal self-test performed. Nx/DBU Interface The following messages indicate the status of the Nx/ DBU card: Loop Up Data is looped at both the network interface and DTE interface of the card. Remote Loop Up Sending V.
Appendix C. System Messages 511 Pattern Off No longer sending 511 pattern towards the network interface. DS-1 (PBX) Interface The following messages indicate the status of the DS-1 interface: Frame Slip Indicates a Frame Slip has occurred on the DS-1 interface. This is present in Alarm History only. Line Loop Up Line loopback activated. Port Loop Up Port loopback activated. Loopdown Loopback has been deactivated.
Appendix D Specifications ELECTRICAL SPECIFICATIONS T1/FT1 Interface T1 Line Rate 1.544 Mbits/s +/- 75bps Line Code Bipolar, RZ; AMI or B8ZS Framing D4(SF) or ESF FT1 Line Rate DS0 Channelized (multiple of 64 kbps) Transmit Timing Network, DTE, U-BR1TE, Secondary, NI, Normal (CSU) or Internal Input Signal 0 to -36 dB (DS-1) Line-Build-Out 0, -7.5, -15, -22.
Appendix D. Specifications Compatibility T1 Interface Pub 62411 ESF Format Interface TR. 194 ESF Performance Monitoring TR. 54016 and T1.403 Approvals FCC Part 15, FCC Part 68, UL 1950 Nx/DBU Interface - Port 0.1-Nx56/64 (V.35 Interface) DCE Interface CCITT V.35 Synchronous Rates 56kbps - 1.536Mbps in 56k or 64k increments Clock Options Normal/Inverted and internal/external Tests Local Loopback (bilateral); Remote Loopback (V.
Appendix D. Specifications Connector Winchester (V.35) female (on the Y cable) DS-1 Interface - Port 0.2 Line Rate 1.544 Mbps Capacity 1 to 24 DS0s Line Codes AMI, B8ZS Framing ESF per ANSI T1.403 and AT&T Pub.TR 54016 D4 per AT&T Pub. 62411 Line Length Short haul mode: -3 dBDsx to 655 feet in 110 ft steps Line Build-out Long haul mode: 0, -7.5,-15, -22.
Appendix D. Specifications Compatibility T1 Interface Pub 62411 ESF Format Interface TR.194 ESF Performance Monitoring TR. 54016 and T1.
Appendix D. Specifications 10BaseT Interface Interface IEEE 802.3 Compliant Rate 10 Mbps Connector shielded 8-pin, modular Receiver accepts signal > 300mV Protocols Network: IP Transport: TCP, UDP Services: SNMP, TELNET, ICMP, ARP, PING, T-Watch PRO Option Slot Interface Interface ADTRAN proprietary, accepts standard TSU/TDU Option Modules. Test Jacks Rx/Tx MON, Rx and Tx (toward incoming service, i.e., T1, FT1, PBX, etc.) This is for selected option modules only.
Appendix D. Specifications Chassis Specification 1 U High (1-3/4-inch), 19-inch rack mount, 12 inches deep. An adapter kit is available to mount the unit into a 23-inch rack (1200.171L1). Environmental Specifications Input Power AC powered devices: 90-120VAC, 47-63 Hz DC powered devices: + or + 48 VDC Fuse AC powered devices: 0.6A, 250V DC powered devices: 1.5 A, 250 V Operating Temperature 0 deg C to 45 deg C Max Power 15 Watts Max Current AC powered devices: 0.
Index Numerics 10BaseT Interface D-5 10BaseT, connectors B-8 511 Pattern Off, status Nx/DBU interface C-4 511 Pattern On, status Nx/DBU interface C-3 511 PATTRN 7-10 511 RESULTS 7-10 A AC powered units, TDU 120e 2-2 Active Alarms 4-3 ADTRAN Shipments Include 2-1 alarm messages C-1 Alarm, connectors B-8 All Ones, test pattern 7-5 All Zeros, test pattern 7-5 ANSI FDL LLB 7-4 ANSI FDL PLB 7-4 ANSI FT1 LLB 7-4 ATT In-Band LLB 7-4 Auth.
Index DS-1 (PBX) Interface, status messages C-4 DS-1 Interface - Port 0.
Index network interface alarms C-1 network interface errors 4-3 Network Interface Loopbacks 7-3 network interface, status messages C-3 network performance reports 4-2 Network Status LEDs 3-9 Network Tests 7-2 Network, wiring B-1 No EXT Clock, alarm message C-2 No Loopback 7-4 No Loopback, deeeactivates loopback 7-4 No Passcode Desired 6-3 No Unit ID Desired 6-4 None, QRSS test pattern 7-6 Nx/DBU (0.1) Menu Items 4-5, 7-9 Nx/DBU Interface - Port 0.1-Nx56/64 (V.
Index setting a passcode 6-3 Shipping damages 2-1 SNMP MIB Browser Configuration A6 SNMP MIB Files A-7 SNMP Read Community 8-4 SNMP Read/Write Community 8-4 SNMP Trap Community 8-4 SNMP Trap Configuration A-5 SNMP, basic components A-1 software revision 6-4 Status Menu Tree 4-1 status messages C-3 SYNC, test patern result 7-7 System Contact 8-5 System Location 8-5 System Name, for SNMP managed node ID 8-5 T T1 Line Rate D-1 T1/FT1 Interface D-1 TDU 120e Interfaces 2-6 TDU 120e, features 1-3 Telnet/Terminal
