ADTRAN TSU LT User Manual
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ADTRAN TSU LT User Manual

ADTRAN TSU LT User Manual

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TSU LT
User Manual
Part Number 1202060L2-1
Document Number 1202060L2-1
February 1999

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  • Page 1 TSU LT User Manual Part Number 1202060L2-1 Document Number 1202060L2-1 February 1999...
  • Page 2 901 Explorer Boulevard P.O. Box 140000 Huntsville, AL 35814-4000 Phone: (205) 963-8000 © 1999 ADTRAN, Inc. All rights reserved. Printed in USA.
  • Page 3 ADTRAN Year 2000 (Y2K) Readiness Disclosure ADTRAN has established a Year 2000 program to ensure that our products will correctly function in the new millennium. ADTRAN warrants that all products meet Y2K specifications regardless of model or revision. Information about ADTRAN’s Y2K compliance program is available at the fol-...
  • Page 4 This equipment complies with Part 68 of the FCC rules. The required label is attached to the bottom of the chassis. If your TSU LT causes harm to the telephone network, the telephone company may discontinue your service tempo- rarily. If possible, they will notify you in advance. If advance notice is not practical, you will be notified as soon as possible.
  • Page 5 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 equip- ment is operated in a commercial environment.
  • Page 6 CANADIAN EQUIPMENT LIMITATIONS The Industry Canada Certification label identifies certified equip- ment. 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.
  • Page 7 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: Do not use this product near water, such as near a bath tub, wash bowl, kitchen sink, laundry tub, in a wet base- ment, or near a swimming pool.
  • Page 8 Warranty and Customer Service ADTRAN will replace or repair this product within five years from the date of shipment if the product does not meet its published specifications or if it fails while in service. For detailed warranty, repair, and return information, see the ADTRAN Equipment Warranty and Repair and Return Policy Procedure.

  • Page 9: Table Of Contents

    T1 Service Offerings................... 1-1 Fractional T1......................1-2 TSU LT Overview....................1-2 Functional Description ................1-2 TSU LT Rear Panel ..................... 1-4 TSU LT Features ....................1-5 TSU LT Interfaces ....................1-5 Network Interface (NI) ................1-6 Nx56/64 Serial Interface ................1-6 Control Port Input ..................
  • Page 10 BIT STUFFING .................... 5-5 SET LBO ....................... 5-5 RX SENSITIVITY ..................5-5 Unit ........................5-6 CNTRL PORT ..................... 5-6 POSITION of TSU LT ................5-6 MODEM INIT ..................... 5-7 DATA RATE ....................5-7 ALARMS ..................... 5-7 TRAPS ......................5-7 OUTPUT ...................... 5-7 TEL NUM ....................
  • Page 11 Chapter 8. Example Operations ................8-1 Testing Examples ...................... 8-1 Far End Looped Back Test ................8-1 Network Interface Test ..................8-1 Appendix A. TSU LT Menu Tree ............... A-1 Appendix B. DTE Data Rate Chart ..............B-1 Appendix C. Pinouts..................... C-1 Wiring ........................C-1 Network......................
  • Page 12 Table of Contents Control-In/Chain-In ..................C-2 Chain-Out ......................C-3 Nx56K/64K DTE (V.35)..................C-4 Index ........................Index-1 TSU LT User Manual 61202060L2-1...
  • Page 13 List of Figures Figure 1-1. TSU LT Unit - Front View ..............1-3 Figure 1-2. TSU LT Rear Panel ................1-4 Figure 1-3. TSU LT Interfaces.................. 1-5 Figure 1-4. Network Loopback Tests ..............1-9 Figure 1-5. DTE Interface Loopback ..............1-10 Figure 1-6.
  • Page 14 Figure 8-5. Test Pattern Screen ................8-4 Figure 8-6. Clear Errors Screen ................8-5 Figure A-1. TSU LT Menu Tree (Status and Config) ........... A-1 Figure A-2. TSU LT Menu Tree (Util and Test) ............ A-2 TSU LT User Manual...
  • Page 15 Table B-1. DTE Data Rate vs. DS0s ................B-1 Table C-1. Network Pin Assignments ..............C-1 Table C-2. Control-In/Chain-In Pin Assignments ..........C-2 Table C-3. Chain-Out Pin Assignments ............... C-3 Table C-4. Primary V.35 Pin Assignment ............C-4 61202060L2-1 TSU LT User Manual...
  • Page 16 List of Tables TSU LT User Manual 61202060L2-1...

  • Page 17: Chapter 1. Introduction

    6000 feet. The T1 signal is divided into 24 time slots or digital signal level zeros (DS0s) which operate at 64 kilo bits per seconds (kbps). Each time slot is occupied by digitized voice or by data. 1202060L2-1 TSU LT User Manual...

  • Page 18: Fractional T1

    T1 circuit. The user pays for the individual 56K lines and the amount of the interoffice T1 utilized • Full T1 line - In T1 access, the user pays for a full T1 to the IXC POP and then only for the bandwidth utilized. TSU LT User Manual 1202060L2-1...

  • Page 19: Tsu Lt Overview

    24 possible data ports. TSU LT Figure 1-1. TSU LT Unit - Front View The TSU LT serves as the link between user data sources such as local area network (LAN) bridges and routers, computers, CAD systems, and teleconferencing equipment. The amount of bandwidth allocated to the port is custom programmable.

  • Page 20: Tsu Lt Rear Panel

    Chapter 1. Introduction TSU LT Rear Panel Number Identification for TSU LT Rear Panel Item Function Network T1-FT1 network interface Bantam test jack Bantam test jack MON (Monitor) Bantam test jack Chain-In Interface of chain-in Chain-Out Connects to chain-in of another TSU LT V.35 Nx56/64...

  • Page 21: Tsu Lt Features

    Extensive self-testing and monitoring ensures proper op- eration. • Flexible channel allocation (any starting channel and al- ternate or contiguous). TSU LT Interfaces The TSU LT is equipped with four interfaces: • Network DS1 interface per AT&T 62411 • Nx56/64 serial V.35 high speed interface •...

  • Page 22: Network Interface (Ni)

    Control Port Input Features of the control port input include: • EIA-232 input from a personal computer (PC) or a mo- dem for control of the TSU LT • Chain input from another TSU LT • Up to 9600 baud operation •...

  • Page 23: Chain Port Output

    T-Watch Pro Management Software Program T-Watch Pro is the ADTRAN management software program that allows the user to control the TSU LT from a PC. It provides complete control over the configuration of the TSU LT using a graphic interface. The T-Watch Pro program displays the same status and performance data as the front panel LCD.

  • Page 24: Tsu Lt Testing

    Chapter 1. Introduction TSU LT Testing The TSU LT offers three forms of testing: • Self-test • Loopback tests • Pattern generation and check 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.

  • Page 25: Figure 1-4. Network Loopback Tests

    Similar to line loopback, except that the framing is extracted from the received data and then regenerated for the transmit- ted data. Data Loopback Loops back all active DS0s and inserts idle code into unoccu- pied DS0s. Figure 1-4. Network Loopback Tests 1202060L2-1 TSU LT User Manual...

  • Page 26: Dte Interface Loopbacks

    (LL) input on the connector or by using the front panel or T-Watch commands. The DTE (or the external test equip- ment) must provide a test pattern to check the DTE interface. Figure 1-5. DTE Interface Loopback 1-10 TSU LT User Manual 1202060L2-1...

  • Page 27: Pattern Generation

    Chapter 1. Introduction Pattern Generation The TSU LT offers four available test patterns: 511, 1:8, All Ones, and All Zeros. The 511 pattern is generated and checked by the Nx56K/64K serial interface. It only appears in the DS0s assigned to the Nx56K/64K port.
  • Page 28 Chapter 1. Introduction 1-12 TSU LT User Manual 1202060L2-1...

  • Page 29: Chapter 2. Installation

    ADTRAN Customer Service. If possible, keep the original shipping container for use in shipping the TSU LT back for repair or for verification of damage during shipment. Items Shipped by ADTRAN The following items are included in the ADTRAN shipment: •...

  • Page 30: Power Connection

    Power to the TSU LT must be from a grounded 220-230 VAC, 60 Hz power source. Power Up Testing and Initialization When shipped from the factory, the TSU LT is set to factory default conditions. At the first application of power, the unit automatically executes self-tests followed by an initialization sequence which sets up the unit.

  • Page 31: Chapter 3. Operation

    Operation Chapter 3 OPERATION The TSU LT can be configured and controlled from either the local front panel or from a PC using the T-Watch Management Software Program. General Menu Operation The TSU LT uses a multilevel menu structure containing both menu items and data fields.

  • Page 32: Menu Structure

    (see Figure 3-1 on page 3- 1). All menu operations are displayed in the LCD window. The complete TSU LT menu diagram is shown in TSU LT Menu Tree on page A-1. Figure 3-2. TSU LT Main Menu Screen This menu structure diagram is a limited overview.

  • Page 33: Four Opening Menu Functions

    Used to set all of the parameters associated with the network interface. UNIT Used to control TSU LT control port baud rate and to set up the dial out function. PORT Used to configure the parameters associated with the V.35 port.

  • Page 34: Test

    SOFTWARE REV Displays the version number of the current software revision level. This information is required when requesting assistance from ADTRAN Customer Service or when updates are needed. REINIT UNIT Used to reinitialize the unit. This menu item is not used to restore the factory default settings for all parameters.

  • Page 35: Menu Features

    The unit responds by displaying the first two available sub- menu fields. The cursor is on the first field. If there are more than two menu fields, a is visible on the Down arrow lower right corner. See Figure 3-4 61202060L2-1 TSU LT User Manual...

  • Page 36: Figure 3-3. Cursor On Menu Item

    The cursor is on the number of the first item. When there are more than two data field items for the select- ed submenu, a is visible on the lower right cor- Down Arrow ner. TSU LT User Manual 61202060L2-1...
  • Page 37 LOSS OF SIGNAL INACTIVE/ACTIVE ing the current state of the alarm. To Exit Any Menu Field Operation or Display Press as many times as required to return to the Cancel desired menu level. 61202060L2-1 TSU LT User Manual...

  • Page 38: Front Panel

    LED ON when DTE data is being received. LED ON when request to send (RTS) active from DTE. LED ON when TSU LT has clear to send (CTS) active toward DTE. A 2X16 LCD window that displays menu items used in configuration and displays information useful in monitoring the unit.

  • Page 39: Chapter 4. Status Menu

    Status Menu Chapter 4 STATUS The S branch provides the ability to view the TATUS status of the TSU LT operation. See Figure 4-1. RESET PERF CNTRS NI PERF RPTS LOSS OF SIGNAL AIS ALARM CURR ERR/ALM OUT OF FRAME...

  • Page 40: Ni Perf Rpts

    Chapter 4. Status Menu NI PERF RPTS The Network Interface Performance Reports displays the user copy of the performance data. The TSU LT 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.

  • Page 41: Curr Err/Alm

    Chapter 4. Status Menu Since only the user’s copy of performance data is cleared by the TSU LT, the data displayed here might be different from the data being sent to the network as performance report mes- sage (PRM) data.

  • Page 42: Alarms And Errors

    (BPVs) in Superframe Format (SF) were received at Bipolar Violations BPVs in SF or ESF Bipolar Violations BPV's in SF or ESF Bit Errors Frame Bits received incorrectly at NI. PLL Alarm Unable to sync up to selected clock TSU LT User Manual 61202060L2-1...

  • Page 43: Err/Alm Hist

    (see Figure 4-4). Figure 4-4. Clear History Screen These conditions are the same as for the CURR ERR/ALM submenu except that these are history Alarm/Errors instead of current Alarm/Errors. 61202060L2-1 TSU LT User Manual...
  • Page 44 Chapter 4. Status Menu TSU LT User Manual 61202060L2-1...

  • Page 45: Chapter 5. Configuration Menu

    Configuration Menu Chapter 5 CONFIG The C is used to set the TSU LT ONFIGURATION operational configuration, including all of the network interface parameters, and the allocation of the DS0s and the port parameters. See Figure 5-1. 1) FORMAT 2) CODE...

  • Page 46: Network (Ni)

    Network (NI) This menu is used to access the configuration of parameters associated with the network interface in the TSU LT. There are eight submenu items that include setting the format, the line build-out (LBO), and the clock source. See Figure 5-2.

  • Page 47: Xmit Alrm

    NI. Choices: NETWORK, DTE, INTERNAL TSU LT Clock Sources The TSU LT is operable from various clock sources permitting it to perform properly in many different applications. The network interface clocking options are set by using the Network Configuration menu options. Three clock source options are available: •...

  • Page 48: Figure 5-3. Network Timed Clock Source

    See Figure 5-3. Figure 5-3. Network Timed Clock Source DTE Timing The DTE is the source of timing. The TSU LT uses the incoming DTE clock to determine the transmission timing. This is typically used in applications such as limited distance line drivers, where it is necessary to have the DTE as the primary clock source.

  • Page 49: Bit Stuffing

    Chapter 5. Configuration Menu Internal Timing The TSU LT is the source of timing. The TSU LT 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.

  • Page 50: Unit

    POSITION of TSU LT Determines if this TSU LT is at the head of a chain of units (directly connected to the modem or PC). The head of the chain is referred to as the master unit. Units down the chain are referred to as slaves or a slave unit.

  • Page 51: Modem Init

    MASTER unit. Prior to modem initialization it should be physically connected to the TSU LT and the power turned on. At this point, an industry-standard AT command string is used to initialize the modem. The string is also used following future power-up sequences.

  • Page 52: Tel Num

    When editing a specific character, the arrows are used to scroll from 0 to 9, then colon and semicolon . The new telephone number is entered into the TSU LT only upon pressing after typing the semicolon. Enter Choices: 20 digits (0-9, :, and ;)

  • Page 53: Dte Tx Clk

    AUTO AUTO DTE TX setting will allow the TSU LT to automatically detect the delay from the DTE device to the TSU LT and set the proper phase of the clock. This feature will automatically select between the settings. If the DTE...

  • Page 54: Cts

    , the first DS0 occupied operates in 56K mode and the DTE clock rate is reduced by 8 kbps. The TSU LT uses this 8 kbps channel to send and receive configuration data across a T1 span. As shown in...

  • Page 55: Figure 5-7. Inband Remote Configuration

    128 kbps. This menu option can also be set to which activates the Inband Channel only when AUTO commands are sent from T-Watch to the remote unit (TSU LT B in Figure 5-7). If no T-Watch activity is detected for 10 minutes, the Inband Channel is deactivated.
  • Page 56 Chapter 5. Configuration Menu 5-12 TSU LT User Manual 61202060L2-1...

  • Page 57: Chapter 6. Utility Menu

    TIME: HH:MM:SS 1) TIME/DATE DATE: MM/DD/YY 2) SOFTWARE REV Displays current software revision UTIL 3) REINIT UNIT 4) ADDRESS 5) SET PASSCODE (Returns all configurations to factory 6) FACT RESTORE settings) Figure 6-1. Utility Menu 61202060L2-1 TSU LT User Manual...

  • Page 58: Time/Date

    Cancel Software Rev Use the S submenu to access the display OFTWARE EVISION of the current software revision level. This information is required when requesting assistance from ADTRAN Customer Service or when updates are needed. TSU LT User Manual 61202060L2-1...

  • Page 59: Reinit Unit

    Set Passcode deleted. Fact Restore The F submenu is used to restore the ACTORY ESTORE factory default setting for all unit parameters. This restores all parameters to the factory settings. 61202060L2-1 TSU LT User Manual...
  • Page 60 Chapter 6. Utility Menu TSU LT User Manual 61202060L2-1...

  • Page 61: Chapter 7. Test Menu

    511 ACT. DS0s ALL ZEROS ALL ONES 4) CLR ERRS (and error display) 5) INSERT 511 ERRRORS RUN SELFTEST (Displays results) PORT TESTS 1) DTE LOOPBK: OFF 2) DATA LOOPBK: OFF Figure 7-1. Test Menu 61202060L2-1 TSU LT User Manual...

  • Page 62: Network Tests

    LCD window. See Figure 7-2. Figure 7-2. Local Loopback Screen LOCAL LOOPBCK There are three available choices for setting the local loopback: No Loopback Deactivates the loopback. Line On Activates the line loopback. Payload On Activates the payload loopback. TSU LT User Manual 61202060L2-1...

  • Page 63: Remote Loopbck

    Indicates the transmission of the PLB maintenance on the FDL. Only V.54 loopbacks can be used with fractional T1 since the full T1 stream including the FDL is not transported to the far end (un- less it is a private network). 61202060L2-1 TSU LT User Manual...

  • Page 64: Test Pattern

    Figure 7-3. Clear Errors Screen This menu function is very useful for testing end-to-end integrity of the network. First loop up the far end TSU LT. Then send a 511 pattern from the local TSU LT. The screen can then be used to determine if the link is...

  • Page 65: Insert 511 Errors

    Phase lock loop verify If a failure is detected, note the failure number and contact ADTRAN Technical Support. Executing self-test disrupts normal data flow and prevents remote communication until the self-test is completed (approximately five seconds) 61202060L2-1 TSU LT User Manual...

  • Page 66: Port Tests

    Port Tests Port Tests are used to control the activation of a DTE loopback. This test loops data received at the V.35 interface back towards the DTE. See Figure 7-5). Figure 7-5. Loopback Setting Screen TSU LT User Manual 61202060L2-1...

  • Page 67: Chapter 8. Example Operations

    Example Operations Chapter 8 TESTING EXAMPLES Before using the TSU LT to pass data, it is recommended to run tests on the circuit. Testing consists of sending a test pattern from end-to-end and checking for errors in the pattern. There are two types of tests used to accomplish this: •...

  • Page 68: Figure 8-1. Main Menu With Test Selected

    Down arrows NETWORK TESTS Press to select. Enter Press again to enter the Enter NETWORK TEST menu. Result: Beginning display of the submenu items. Each menu item can be selected with the Down arrows TSU LT User Manual 61202060L2-1...

  • Page 69: Figure 8-3. Local Loopback Test Menu

    Figure 8-4. Remote Loopback Test Menu The menu options for the R are: EMOTE OOPBACK • No Loopback • V.54 Inband PLB • ANSI FDL LLB • AT&T Inband LLB • ANSI FDL PLB • AT&T FDL PLB 61202060L2-1 TSU LT User Manual...

  • Page 70: Figure 8-5. Test Pattern Screen

    (Must use V.54 Inband PLB for Fractional T1 on Public Networks.) Press to activate a Enter Remote Payload Loop- back Results: This initiates the transmission of a loopup code toward the far end. TSU LT User Manual 61202060L2-1...

  • Page 71: Figure 8-6. Clear Errors Screen

    Down arrows Press to activate the selection. Enter Results: The TSU LT always checks for 511 errors. The results of this check are shown under submenu item 4 (see Figure 8-6). Figure 8-6. Clear Errors Screen When through viewing the results, do the following:...
  • Page 72 Chapter 8. Example Operations TSU LT User Manual 61202060L2-1...

  • Page 73: Appendix A. Tsu Lt Menu Tree

    TSU LT Menu Tree Appendix A The complete menu tree for the TSU LT is shown in Figures A-1 and A-2. NI PERF RPTS RESET PERF CNTRS LOSS OF SIGNAL AIS ALARM OUT OF FRAME CURR ERR/ALM YEL ALARM CLEAR HISTORY...

  • Page 74: Figure A-2. Tsu Lt Menu Tree (Util And Test

    AT&T PBL ALL ZEROS TEST ALL ONES CLR ERRS (and error display) INSERT 511 ERRORS RUN SELF-TEST (Displays Results) PORT TESTS DTE LOOPBK: OFF DATA LOOPBK: OFF Figure A-2. TSU LT Menu Tree (Util and Test) TSU LT User Manual 61202060L1-1...

  • Page 75: Appendix B. Dte Data Rate Chart

    728K 832K N=14 784K 896K N=15 840K 960K N=16 896K 1024K N=17 952K 1088K N=18 1008K 1152K N=19 1064K 1216K N=20 1120K 1280K N=21 1176K 1344K N=22 1232K 1408K N=23 1288K 1472K N=24 1344K 1536K 61202060L2-1 TSU LT User Manual...
  • Page 76 Appendix B. DTE Data Rate Chart TSU LT User Manual 61202060L2-1...

  • Page 77: Appendix C. Pinouts

    Pinouts Appendix C WIRING Network On the rear panel, the TSU LT has an eight-position modular jack labeled N . This connector is used for connecting ETWORK to the network. See Table C-1 for the network connector pin assignments. Connector Type...

  • Page 78: Control-In/Chain-In

    Table C-2. Control-In/Chain-In Pin Assignments Name Description Ground connected to unit chassis UNUSED — RXDATA Data received by the TSU UNUSED — TXDATA Data transmitted by the TSU UNUSED — Ring indicate from modem UNUSED — TSU LT User Manual 61202060L2-1...

  • Page 79: Chain-Out

    TSU. Connect to RX DATA of the next unit (chain-in pin 3) UNUSED — RXDATA Data received from chained units by the TSU. Connect to TX DATA of the next unit (chain-in pin 3) 6, 7, 8 UNUSED — 61202060L2-1 TSU LT User Manual...

  • Page 80: Nx56K/64K Dte

    Transmitted data (TD-A) from DTE Transmitted data (TD-B) from DTE TX clock (TC-A) TX clock (TC-B) External TX clock (ETC-A) from DTE External TX clock (ETC-B) from DTE NN&K — Test mode (TM) to DTE TSU LT User Manual 61202060L2-1...

  • Page 81: Index

    ADDRESS, util menu 3-4 CNTRL PORT, config menu 5-6 ADTRAN Management Software 1-7 code 5-2 ADTRAN Web Site iii code violations 4-4 ADTRAN Year 2000 (Y2K) Readi- Compliance, Y2K iii ness Disclosure iii CONFIG, menu 3-3 AIS alarm 4-4 Config, menu 5-1...
  • Page 82 8-3 exiting menus, how to 3-7 menu options, test pattern screen 8-4 menu tree, config menu 5-1 menu tree, TSU LT complete A-1 FACT RESTORE, util menu 3-4 menu tree, utility menu 6-1 factory restore, restoring factory de-...
  • Page 83 3-5 delete 6-3 self test, power up 2-2 passcode, on utility menu 6-3 self-test 1-8 pattern generation, TSU LT 1-11 self-test, test menu 7-4 payload loopback 1-9 SES 4-2 PC management 1-7 set LBO, config menu 5-5...
  • Page 84 Warranty and Customer Service viii traps, config alarm conditions 5-7 TSU LT overview 1-2 XMIT ALRM, config menu 5-3 TSU LT clock sources 5-3 TSU LT Features 1-5 TSU LT pattern generation 1-11 Y2K Compliance iii TSU LT testing 1-8...
  • Page 85 (800) 615-1176 Sales (800) 827-0807 Post-Sale Support Please contact your local distributor first. If your local distributor cannot help, please contact ADTRAN Technical Support and have the unit serial number available. Technical Support (888) 4ADTRAN Repair and Return If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Customer and Product Service (CAPS) depart- ment to issue an RMA number.

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