TSU LT 1202.060L2 USER MANUAL 61202.
901 Explorer Boulevard P.O. Box 140000 Huntsville, AL 35814-4000 Phone: (205) 963-8000 © 1997 ADTRAN, Inc. All rights reserved. Printed in USA.
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. If your TSU LT causes harm to the telephone network, the Telephone Company may discontinue your service temporarily. If possible, they will notify you in advance. If advance notice is not practical, you will be notified as soon as possible.
CANADIAN EQUIPMENT LIMITATIONS The Industry Canada Certification 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.
Table of Contents Chapter 1: Introduction .................................................................................................... T1/FT1 Overview............................................................................................................... T1 Service Offerings .................................................................................................... Fractional T1 ..........................................................................................................
Table of Contents Network ........................................................................................................................ Control-In/Chain-In.................................................................................................... Chain-Out ..................................................................................................................... Nx56K/64K DTE (V.35) ..............................................................................................
Table of Contents 1)Network (NI), Submenu of 2)Config..................................................................... 1)FORMAT ..................................................................................................... 2)CODE........................................................................................................... 3)YEL ALRM.................................................................................................. 4)XMIT ALRM ..........................................
Table of Contents Appendix A: TSU LT Menu Tree ................................................................................... 53 Appendix B: DTE Data Rate Chart ................................................................................ 55 iv TSU LT User Manual 61202.
List of Figures Figure 1-1: Figure 1-2: Figure 1-3: Figure 1-4: Figure 1-5: Figure 1-6: Figure 1-7: Figure 1-8: Figure 1-9: Figure 3-1: Figure 3-2: Figure 3-3: Figure 3-4: Figure 3-5: Figure 3-6: Figure 3-7: Figure 3-8: Figure 3-9: Figure 3-10: Figure 3-11: Figure 3-12: Figure 3-13: Figure 3-14: Figure 3-15: Figure 3-16: Figure 3-17: Figure 3-18: Figure 3-19: Figure 3-20: Figure 3-21: Figure 4-1: Figure 4-2: Figure 4-3: Figure 4-4: Figure 4-5: TSU LT Unit - Front View.......................................
List of Figures Figure 4-6: Figure A-1: vi Clear Errors Screen................................................................................... 52 TSU LT Menu Tree .................................................................................. 54 TSU LT User Manual 61202.
List of Tables Table 2-A: Table 2-B: Table 2-C: Table 2-D: Table 3-A Table B-A 61202.060L2-1 Network Pin Assignments ........................................................................ Control-In/Chain-In Pin Assignments ...................................................... Chain-Out Pin Assignments ..................................................................... Primary V.35 Pin Assignment.................................................................. Normal Mode Operation .................
List of Tables viii TSU LT User Manual 61202.
Chapter 1 Introduction T1/FT1 OVERVIEW T1 digital communication links have been used by the telephone companies (telcos) for voice transmission since the early sixties. The D4 channel bank is an example of a T1 digital carrier system that was introduced in the mid-seventies and is still widely used by the telcos. Communication demands of businesses continued to grow to the point that the telcos began offering T1 service directly to the public.
Chapter 1. Introduction Fractional T1 Fractional T1 (FT1) lets the buyer purchase less than a full T1 circuit between two points. Most carriers offer fractional T1 in increments of 56 or 64 kbps. Connection is made to the same network elements. The network allows multiple users to share the same interoffice T1 bandwidth. FT1 remains almost exclusively an inter-exchange carrier (IXC) service.
Chapter 1. Introduction ENTER TEST ALM ERR PWR CANCEL TSU LT TD RD RS CS 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. The data terminal equipment (DTE) data can occupy contiguous or alternate channels in the T1 stream, and the channels may start at any position. 61202.
Chapter 1. Introduction Number Identification Item Function 1. Network T1-FT1 network interface 2. In Bantam test jack 3. Out Bantam test jack 4. MON (Monitor) Bantam test jack 5. Chain-In Interface of chain-in 6. Chain-Out Connects to chain-in of another TSU LT 7. V.35 Nx56/64 DTE port 8. Power Switch Used to turn power on or off 9. Power Cord Captive 3 prong power cord 1 2 34 TEST JACKS NETWORK IN OUT MON 5 6 7 8 9 CONTROL CHAIN IN CHAIN OUT OFF V.
Chapter 1. Introduction Features Features of the TSU LT are the following: • • • • • • A DS1 interface and an Nx56/64 DTE serial interface port. Easy configuration capabilities using simplistic menus displayed in a liquid crystal display (LCD) window operated by a front panel keypad. Timing is selectable from the network, from the Nx56/64 DTE port, or internally. All ones, all zeros, 511, and 1:8 test patterns. Extensive self test and monitoring provides assurance of proper operation.
Chapter 1.
Chapter 1. Introduction Chain Port Output Features of the chain port output include: • • • RS-232 output to chain control to other TSU LTs Up to 9600 baud operation Automatic setup; no user input required TWO METHODS OF CONTROL Front Panel The front panel provides complete and easy control of all items that can be configured through menu guided options. The front panel LCD also displays the status of operation and performance reports for the unit.
Chapter 1. Introduction 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: • • • Network timed DTE timed Internal timing The clocking option selected always designates the clock source for transmission. Clocking necessary for receiving data is always recovered from incoming data.
Chapter 1. Introduction 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. See Figure 1-5. OSC T1 XMIT (DSU) T1 Receive Network Interface NX56K/64K DTE CLOCK DTE Figure 1-5 DTE Clock Source Internal Timing The TSU LT is the source of timing.
Chapter 1. Introduction OSC T1 XMIT (DSU) T1 Receive Network Interface NX56K/64K DTE CLOCK DTE Figure 1-6 Internal Clock Source 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.
Chapter 1. Introduction In addition to the specified self tests, background tests are also run on various parts of the internal electronics. These run during normal operation to confirm continued correct functioning. The background tests include: • • Monitoring the phase locked loop for lock Standard background network performance monitoring, as required by ANSI T1.
Chapter 1. Introduction TSU V.35 NI CSU DS1 Interface Data Loopback Payload Loopback Line Loopback Figure 1-7 Network Loopback Tests DTE Interface Loopbacks The Nx56K/64K serial interface offers a DTE loopback. See Figure 1-8. DTE Loopback Loops all data from the DTE back towards the DTE. This loopback may be initiated by the DTE asserting the local loopback (LL) input on the connector or by using front panel or T-Watch commands.
Chapter 1. Introduction Pattern Generation The TSU LT offers four available test patterns: 511, 1:8, All Ones, and All Zeros. 511 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. When used in conjunction with the payload loopback at the far end as previously described, an end-to-end integrity check can be made on the DTE ports. 1:8 The 1:8 is a stress pattern which places the maximum number of 0s in the transmitted data.
Chapter 1. Introduction WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within five (5) years from the date of shipment if it does not meet its published specifications or fails while in service. For detailed warranty, repair and return information refer to the ADTRAN Equipment Warranty and Repair and Return Policy Procedure. Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN.
Chapter 2 Installation UNPACK, INSPECT Carefully inspect the TSU LT for any shipping damage. If damage is suspected, file a claim immediately with the carrier and then contact 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.
Chapter 2: Installation WIRING Network On the rear panel, the TSU LT has an eight-position modular jack labeled Network. This connector is used for connecting to the network. See Table 2-A for the network connector pin assignments.
Chapter 2: Installation Control-In/Chain-In Use this as an RS-232 port for connection to a computer or modem (chain-in) or another TSU (chain-out). See Table 2-B for the pin assignment for this connector. Connector Type Product Number RJ-48 AMP# 555164-2 Table 2-B Control-In/Chain-In Pin Assignments 61202.
Chapter 2: Installation Chain-Out Use this to connect to another TSU LT chain-in connector. The pinout for this connector is shown in Table 2-C. Connector Type Product Number RJ-48 AMP# 555164-2 Table 2-C Chain-Out Pin Assignments 18 PIN NAME 1 GND 2 UNUSED 3 TXDATA 4 UNUSED 5 RXDATA 6, 7, 8 UNUSED DESCRIPTION Ground-connected to unit chassis. Connect to GND of next unit (pin 1) — Data transmitted to chained units by the TSU.
Chapter 2: Installation Nx56K/64K DTE (V.35) The pinout for this connector is shown in Table 2-D. Connector Type Product Number V.35 AMP# 92-4883-3-1 Table 2-D Primary V.35 Pin Assignment 61202.
Chapter 2: Installation 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. Self Test Upon a power-up or commanded self tests, the LCD displays ADTRAN TSU INITIALIZING and the LEDs illuminate sequentially.
Chapter 3 Operation 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. FRONT PANEL The TSU LT front panel is shown in Figure 3-1. Unit features are identified by call-outs. 10 12 1 2 3 4 PWR ERR ALM TEST TD RD RS CS 5 6 7 ENTER CANCEL TSU LT 9 11 13 8 Figure 3-1 Front Panel Layout 61202.
Chapter 3: Operation IDENTIFICATION OF NUMBERS Item Function Displays: 1. PWR LED ON when power is received by TSU LT. 2. ERR LED ON when errored events have happened in the last second. 3. ALM LED ON when an alarm condition exists. 4. TEST LED ON when unit is in test mode. 5. TD LED ON when DTE data is being received. 6. RD LED ON when DTE data is being received. 7. RS LED ON when request to send (RTS) active from DTE. 8. CS LED ON when TSU LT has clear to send (CTS) active toward DTE.
Chapter 3: Operation GENERAL MENU OPERATION The TSU LT uses a multilevel menu structure containing both menu items and data fields. All menu operations and data are displayed in the LCD window. The menu items are numbered and can be viewed by using the Up and Down arrows. Menu Features Data Field A menu item followed by a colon (:) identifies an editable data field. Display Field A menu field followed by alarm or error information.
Chapter 3: Operation With the cursor on the number 2: Press: Results: Enter The unit responds by displaying the first two available submenu fields. The cursor is on the first field. If there are more than two menu fields, a Down arrow is visible on the lower right corner. See Figure 3-3. Figure 3-3 Sub-Menu Fields To select the desired submenu item use the same operation used to select an opening menu item. Use: Results: The Up and Down keys to place the cursor on the desired menu item.
Chapter 3: Operation Press: Results: Enter to set the value. The unit is set for the value shown in the data field and the cursor moves back to the submenu item position indicating the operation is complete; another submenu field may be selected, or use Cancel to return to the submenu. Cancel is available any time during the operation. If used prior to pressing Enter after making a data change, the original data value is restored and the cursor returns to the submenu field.
Chapter 3: Operation This menu structure diagram is a limited overview. A detailed description of each menu item, presented in menu order, immediately follows. A complete menu diagram is shown in the appendix TSU LT Menu Tree.
Chapter 3: Operation 2)CURR ERR/ALM Used to view current errors/alarms which are being reported by the TSU LT. 3)ERR/ALM HIST Used to view and clear history errors and alarms. 2)CONFIG The Configuration menu is used to set the TSU LT operational configuration. This menu includes the following sub-items. 1)NETWORK (NI) Used to set all of the parameters associated with the network interface. 2)UNIT Used to control TSU LT control port baud rate and to set up the dial out function.
Chapter 3: Operation 5)SET PASSCODE Allows a passcode to be set. 5)FACT RESTORE Restores factory default settings for all unit parameters. 4)TEST The Test menu is used to initiate different types of tests of the unit and to view test results. Test results are displayed in the LCD window. The menu contains three sub-items. The execution of tests disrupts some normal operations. See individual menu items concerning tests before executing.
Chapter 3: Operation 1)STATUS Purpose The Status menu branch provides the ability to view the status of the TSU LT operation. See Figure 3-6.
Chapter 3: Operation These fields cannot be edited, only cleared as previously discussed. Only the user copy of performance data is cleared. See Figure 3-7. Data Values Figure 3-7 Severely Errored Seconds Screen SES Number of severely errored seconds ES Number of errored seconds %AV % of available seconds %EF % of error free seconds CVs Number of code violations Continue with standard operating procedures to exit the display.
Chapter 3: Operation Alarm Investigated State (Active/Inactive) Figure 3-8 Loss of Signal (Current Errors/Alarms) Screens The Up and Down arrows are used to access the complete display of the errors/alarms that are currently active. The following are alarms and errors which can be seen.
Chapter 3: Operation 3)ERR/ALM Hist, Submenu of 1)Status The Error/Alarm History menu is used for viewing history of errors and alarms. If an alarm has occurred since the last CLEAR HISTORY selection, the menu is active. If the condition has not occurred then the menu is inactive (see Figure 3-9). Figure 3-9 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.
Chapter 3: Operation 1) FORMAT 2) CODE 3) YEL ALRM 4) XMIT PRM 5) CLOCK SOURCE 1) NETWORK (NI) 6) BIT STUFFING 7) SET LBO 8) RX SENSITIVITY 1) POSITION 2) MODEM INIT 1) CNTRL PORT 3) DATA RATE 2) ALARMS 1) TRAPS 2) UNIT 2) CONFIG 2) OUTPUT 3) TEL NUM 1) RATE 56/64 2) CHANNELS 3) DTE TX CLK 4) START CHAN 3) PORT 5) # OF CHAN 6) DATA 7) CTS 8) DCD 9) DSR 10) INBAND Figure 3-10 Configuration Menu 1)Network (NI), Submenu of 2)Config This menu is used to access the configuration of parameters associ
Chapter 3: Operation Figure 3-11 Network Submenu The fields and parameters available are: 1)FORMAT Sets the frame format for the NI D4 ESF AUTO D4 is equivalent to Superframe Format (SF). 2)CODE Sets the line code for the NI. AMI B8ZS 3)YEL ALRM Enables and disables the transmitting of yellow alarms. ENA (enable) DISA (disable) 4)XMIT ALRM Enables and disables the transmitting of performance report messages (PRM) data on the facility data link (FDL).
Chapter 3: Operation 5)CLOCK SOURCE Selects the clock source for transmission toward the network from the NI. NETWORK DTE INTERNAL 6)BIT STUFFING When enabled, Bit Stuffing causes the TSU LT to monitor for ones (1s) density violations and insert a one (1) when needed to maintain ones at 12.5%. This option should be disabled if B8ZS is enabled, if Nx56 is selected, or if alternate channels are being used. All of these other options already ensure pulse density requirements.
Chapter 3: Operation Figure 3-12 Configuration Submenu 1)CNTRL PORT Used to set the unit up as the master or slave on a chain of units, and whether to initialize a modem and the control port data rate. 1)POSITION - 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.
Chapter 3: Operation 2)ALARMS Used to initialize the method by which the control port handles alarm conditions. 1)TRAPS - This setting determines if alarm conditions should automatically send alarm messages (traps) to the controlling PC/Proxy Agent. The setting is for this unit, or for slaves if this unit is a master. Choices - ENA DISA For applications where the AUTO Inband selection is not acceptable, Traps should only be enabled with the Inband selection set to On or Off.
Chapter 3: Operation 1)RATE 56/64 This sets the base rate of the interface. The actual data rate depends on the number of DS0s assigned to the Nx port. The DTE data rate vs. the number of DS0s appears in the appendix DTE Data Rate Chart. Choices - 56K or 64K 2)CHANNELS This sets the unit to use alternate or contiguous channels in the T1 data stream. If more than 12 channels are used, then contiguous must be used.
Chapter 3: Operation 6)DATA Used to control the inverting of the DTE data. This inversion can be useful when operating with an HDLC protocol. Often used as a means to ensure ones (1s) density. TSU LTs on both ends must have identical option settings. Choices - NORMAL or INVERT 7)CTS Used to control characteristics of CTS. Choices - NORMAL (see Table 3-A) or FORCE ON 8)DCD Data Carrier Detect - Indicates to the DTE when a valid signal is being received at the Network Interface.
Chapter 3: Operation The 8 kbps channel is only taken out of the first DS0. If two 64K DS0s are mapped, the DTE rate would be 120 kbps instead of 128 kbps. This menu option can also be set to AUTO which activates the Inband Channel only when commands are sent from T-Watch to the remote unit (TSU LT B in Figure 3-13). If no T-Watch activity is detected for 10 minutes, the Inband Channel is deactivated.
Chapter 3: Operation TIME: HH:MM:SS 1) TIME/DATE DATE: MM/DD/YY 2) SOFTWARE REV Displays current software revision 3) UTIL 3) REINIT UNIT 4) ADDRESS 5) SET PASSCODE (Returns all configurations to factory settings) 6) FACT RESTORE Figure 3-14 Utility Menu 1)Time/Date, Submenu of 3)Util This menu option is used to view or to edit the current time and date. The time and date are maintained during power off conditions (see Figure 3-15).
Chapter 3: Operation 2)Software Rev, Submenu of 3)Util Use the Software Revision submenu to access the display of the current software revision level. This information is required when requesting assistance from ADTRAN Customer Service or when updates are needed. 3)Reinit Unit, Submenu of 3)Util Reinit Unit submenu is used to re-initialize the unit. This menu item is not used to restore the factory default settings for all parameters.
Chapter 3: Operation 4)TEST Purpose The Test menu is used to initiate different types of tests of the unit and to view test results (see Figure 3-17). Test results are displayed in the LCD window. The menu contains three sub-items. The execution of tests will disrupt some of the normal operation. See individual menu items concerning tests before executing. NO LOOPBACK 1) LOCAL LOOPBK LINE ON NO LOOPBACK PAYLOAD ON V.
Chapter 3: Operation 1)Network Tests, Submenu of 4)Test Network tests are used to control the activation of loopbacks and the initiation of data test patterns. The network tests are run on the network interface (NI). Three different test configurations can be selected to determine the type of loopback and the pattern to run. Test results are displayed in the LCD window.
Chapter 3: Operation AT&T Inband LLB Activates the line loopback using inband code. AT&T Inband LLB Activates the line loopback using inband code. ANSI FDL LLB Initiates the transmission of an FDL line loop-up code toward the far end. AT&T PLB 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 (unless it is a private network).
Chapter 3: Operation work. First loop up the far end TSU LT. Then send a 511 pattern from the local TSU LT. The CLR ERRORS screen can then be used to determine if the link is functioning properly by verifying that no errors are being counted. 5)INSERT 511 ERRORS When running a 511 pattern test, press the Enter key to insert an error into the 511 pattern. 2)Run Selftest, Submenu of 4)Test This menu selection is used to execute an internal self test.
Chapter 3: Operation 3)Port Tests, Submenu of 4)Test 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 21). Figure 3-21 Loopback Setting Screen 61202.
Chapter 3: Operation 48 TSU LT User Manual 61202.
Chapter 4 Example Operations TESTING EXAMPLE Prior to actually 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: • • Send the pattern from one end and loop back the far end. Send the pattern from both ends and check at both ends. FAR END LOOPED BACK TEST Two types of tests can be executed with the far end looped.
Chapter 4: Example Operations Use: Press: Results: the arrows to place the cursor on 4)TEST ENTER to select display of the first two Test submenu items (see Figure 4-2) Figure 4-2 Test Menu with NETWORK TESTS Selected Use: Press: Press: Results: the arrows to place the cursor on 1)NETWORK TESTS ENTER to select ENTER again to enter the Network Test menu beginning display of the submenu items.; each menu item can be selected with the Up and Down arrows The Local Loopback test menu is shown in Figure 4-3.
Chapter 4: Example Operations Figure 4-4 Remote Loopback Test Menu The options the Remote Loopback menu offers are: • • • • • • No Loopback V.54 Inband PLB ANSI FDL LLB AT&T Inband LLB ANSI FDL PLB AT&T FDL PLB The Test Pattern screen is shown in Figure 4-5. Figure 4-5 Test Pattern Screen The options available for the Test Pattern Screen are: • • • • • 61202.
Chapter 4: Example Operations Use: Press: Use: the arrows to place the cursor on 2)REMOTE LOOPBK ENTER to select the Up and Down arrows to set PAYLOAD in data the field. (Must use V.54 Inband PLB for Fractional T1 on Public Networks.) Press: Results: Enter to activate a Remote Payload Loopback This initiates the transmission of a loopup code toward the far end.
Appendix A TSU LT Menu Tree The complete menu tree for theTSU LT is provided in Figure A-1. 61202.
Appendix A: TSU LT Menu Tree RESET PERF CNTRS SES ES % AV %EF CVs 1) NI PERF RPTS 2) CURR ERR/ALM 1) STATUS LOSS OF SIGNAL AIS ALARM OUT OF FRAME YELLOW ALARM RED ALARM CODE VIOLATIONS BIPOLAR VIOL FRAME BIT ERRORS PLL ALARM CLEAR HISTORY LOSS OF SIGNAL AIS ALARM OUT OF FRAME YELLOW ALARM RED ALARM CODE VIOLATIONS BIPOLAR VIOLATIONS FRAME BIT ERRORS PLL ALARM 3) ERR/ALM HIST 1) NETWORK (NI) 1) POSITION 2)MODEM INIT 3)DATA RATE 1) CNTRL PORT 2) UNIT 2) CONFIG MAIN MENU 1)TRAPS 2)OUTPUT 3)TEL NUM
Appendix B DTE Data Rate Chart The DTE data rate chart is shown in Table B-A. Table B-A DTE Data Rate vs. DS0s # OF DS0s (N) DTE RATE=56K DTE RATE=64K 61202.
Appendix A: DTE Data Rate Charts Table B-A DTE Data Rate vs. DS0s 56 N=20 1120K 1280K N=21 1176K 1344K N=22 1232K 1408K N=23 1288K 1472K N=24 1344K 1536K TSU LT User Manual 61202.
Acronyms AIS..................................................Alarm Indication Signal ALM ...............................................Alarm AMI ................................................Alternate Mark Inversion ANSI ..............................................American National Standards Institute AV...................................................Available Seconds B8ZS ...............................................Bipolar 8 Zero Suppression BPV ................................................
Acronyms kbps................................................ Kilo Bits Per Second LAN................................................ Local Area Network LBO ................................................ Line Build Out LCD ................................................ Liquid Crystal Display LEC................................................. Local Exchange Carrier LLB ................................................. Line Loopback LOS/OOF ......................................
Index Symbols # of chan %AV 30 %EF 30 38 Numerics 1-8 pattern 13 511 pattern 13 A acronyms 57 address 27, 42 AIS alarm 31 alarms 37 all ones 13 all zeros 13 ALM 22 AMI 34 AMP# 555164-2 16, 18 AMP# 92-4883-3-1 19 application 13 arrows 23 ASP# 555164-2 17 AUTO 34 B B8ZS 34 bipolar violations 31 bit errors 31 61202.
Index data carrier detect 39 data field 23 data loopback 11 data rate chart 55 data set ready 39 DCD 39 description 2 display field 23 DSR 39 DTE data rate chart 55 data rate vs.
Index loss of signal 31 O M operation 21 out of frame 31 output 37 chain port 7 overview T1/FT1 1 TSU LT 2 management from PC 7 menu config 27 configuration 32 status 26, 29 test 28, 43 util 27 utility 40 menu operation 23 example 23 menu structure 25 methods of control 7 P N network pin assignments 16 timing 35 Network (NI) 27 network (NI) 33 network interface 6 network interface performance reports 29 network interface test 49 network jack 16 network loopbacks 11 network tests 28, 44 network timin
Index R rate 56/64 38 RD 22 red alarm 31 reinit unit 27, 42 remote loopback 44 restore factory settings 28, RJ-48 18 RJ-48C 16 RS 22 RS-232 17 run self test 28 run selftest 46 RX sensitivity 35 S self test 10 power up 20 run 28 selftest 46 SES 30 set LBO 35 set passcode 28, 42 setting the data field 24 settings restore 42 shipping contents 15 software rev 27, 42 start chan 38 status menu 26, 29 T T1 overview 1 service offerings 1 42 test 10 far end loopbacked 49 loopback 11 self 10 test menu 28, 43 tes
Index V V.35 19 viewing display-only fields 25 W warranty 14 wiring 16 X XMIT ALRM 34 Y YEL ALRM 34 yellow alarm 31 61202.
Index 64 TSU LT User Manual 61202.
Product Support Information Presales Inquiries and Applications Support Please contact your local distributor, ADTRAN Applications Engineering, or ADTRAN Sales: Applications Engineering (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.