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About This Guide

7900-A2-GB20-00

March 1998

Section

Description

Chapter 6

MTU-M Maintenance Functions. Describes how to view and
change MTU-M operational parameters.

Chapter 7

MTU-M Front Panel. Describes how to monitor nest card
termination unit alarms using the MTU-M front panel LEDs.

Chapter 8

MTU-M Alarms. Describes how to access, display, and reset
MTU-M alarm functions.

Chapter 9

Testing. Provides procedures for performing loopback
testing on xTU-C/R pairs.

Appendix A

Cable Pin Assignments. Contains connector and interface
details.

Appendix B

Standards Compliance for SNMP Traps. Contains SNMP
trap information.

Appendix C

Netconfig and Sysconfig Menu Values Table. Contains a
table with default MTU-M settings and a column to record
your initial system configuration.

Glossary

Defines acronyms and terms used in this document.

Index

Lists key terms, acronyms, concepts, and sections in
alphabetical order.

Product-Related Documents

Document Number

Document Title

7900-A2-GN20

Hotwire Model 7900 Nest and Options Installation
Guide

7910-A2-GB20

Hotwire Model 7914 and 7915 T1 and E1 SDSL Nest
Card Termination Units User’s Guide

7914-A2-GB20

Hotwire Model 7914 Standalone T1 SDSL
Termination Unit User’s Guide

7915-A2-GB20

Hotwire Model 7915 Standalone E1 SDSL
Termination Unit User’s Guide

7920-A2-GB20

Hotwire Models 7924 and 7925 T1 and E1 HDSL
Nest Card Termination Units User’s Guide

7924-A2-GB20

Hotwire Model 7924 Standalone T1 HDSL
Termination Unit User’s Guide

7925-A2-GB20

Hotwire Model 7925 Standalone E1 HDSL
Termination Unit User’s Guide

7925-A2-GB22

Hotwire Model 7925 Standalone T1 HDSL
Termination Unit, G.703 Interface, User’s Guide

Contact your sales or service representative to order additional product
documentation.

Paradyne documents are also available on the World Wide Web at:

http://www.paradyne.com

Select

Service & Support

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Technical Manuals

Содержание HOTWIRE 7900

Страница 1: ...HOTWIRE MODEL 7900 BASIC MAINTENANCE PROCESSOR USER S GUIDE Document No 7900 A2 GB20 00 March 1998 ...

Страница 2: ...om time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes Changes and enhancements to the product and to the information herein will be documented and issued as a new release to this manual Trademarks All products and services mentioned herein are the trademarks service marks registered trademarks or registered service marks ...

Страница 3: ...ry requirements of the country in which it is installed If necessary consult with the appropriate regulatory agencies and inspection authorities to ensure compliance 7 A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings If products installed in separate buildings are interconnected the voltage potential may cause a hazardous condition Consult a quali...

Страница 4: ...t in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense The authority to operate this equipment is conditioned by the requirements that no modifications will be made to the equipment unless the changes or modifications are expressly approved by Paradyne Corporation In order to maintain compliance with FC...

Страница 5: ...ing the Primary Nest to Additional Nests 2 3 Expansion Nest Numbering Sequence 2 4 H Connecting External Alarms 2 4 3 Initial Setup Instructions H Accessing the System for the First Time 3 1 H Entering Initial Network Configuration Netconfig Parameters 3 2 H Entering Initial System Configuration Sysconfig Parameters 3 3 H Additional Sysconfig Setup Considerations 3 4 4 System Terminal Interface H ...

Страница 6: ...twork Parameters netconfig 6 7 Silencing External Alarms ACO 6 9 Clearing MTU M Alarms and Status Information clear 6 10 Clearing XTU C Alarms from the MTU M al_clear 6 11 Taking the xTU C out of the MTU M Polling Cycle stoppoll 6 12 Placing the xTU C Back into the MTU M Polling Cycle pollstart 6 12 7 MTU M Front Panel H What to Monitor 7 1 H MTU M Front Panel LEDs 7 2 H Alarm Cut Off ACO 7 2 H Re...

Страница 7: ...ck Test 9 4 Remote Loopback Test 9 5 H HDSL E1 Loopback Tests 9 6 Local Loopback Test 9 6 Remote Loopback Test 9 7 H SDSL E1 Loopback Tests 9 8 Local loopback Test 9 8 Remote Loopback Test 9 9 H SDSL T1 Loopback Tests 9 10 Local loopback Test 9 10 Remote Loopback Test 9 11 A Cable Pin Assignments H Terminal Connection Cable Pin Assignments A 1 B Netconfig and Sysconfig Menu Values C SNMP Traps H S...

Страница 8: ...Contents iv 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 9: ...private network environment Document Summary Section Description Chapter 1 About the Hotwire Model 7900 Basic Maintenance Processor Describes the features of the Model 7900 F1 500 and typical configurations Chapter 2 MTU M Installation Procedures Describes how to install the MTU M in the Hotwire Model 7900 Nest and connect multiple adjacent nests Chapter 3 Initial Setup Instructions Provides initi...

Страница 10: ...Index Lists key terms acronyms concepts and sections in alphabetical order Product Related Documents Document Number Document Title 7900 A2 GN20 Hotwire Model 7900 Nest and Options Installation Guide 7910 A2 GB20 Hotwire Model 7914 and 7915 T1 and E1 SDSL Nest Card Termination Units User s Guide 7914 A2 GB20 Hotwire Model 7914 Standalone T1 SDSL Termination Unit User s Guide 7915 A2 GB20 Hotwire M...

Страница 11: ... panel H A local asynchronous terminal through the MTU M s VT100 serial port located on the MTU M front panel The MTU M is installed in Slot 1 of the Hotwire Model 7900 Nest and monitors the performance and status of the following models of nest card termination units and their associated remote termination units Model Number Description 7914 B1 xxx SDSL T1 DSX 1 7915 B1 xxx SDSL E1 G 703 7924 B1 ...

Страница 12: ...L LOS BER LOOP 1 LOOP 2 NETWORK LOS AIS BER LOCAL REMOTE LOOP BK SYSTEM PWR FAIL HDSL LOS BER LOOP 1 LOOP 2 NETWORK LOS AIS BER LOCAL REMOTE LOOP BK SYSTEM PWR FAIL HDSL LOS BER LOOP 1 LOOP 2 NETWORK LOS AIS BER LOCAL REMOTE LOOP BK SYSTEM PWR FAIL HDSL LOS BER LOOP 1 LOOP 2 NETWORK LOS AIS BER LOCAL REMOTE LOOP BK SYSTEM PWR FAIL HDSL LOS BER LOOP 1 LOOP 2 NETWORK LOS AIS BER LOCAL REMOTE LOOP BK...

Страница 13: ... system MTU M or individual nest card termination units Refer to Chapter 8 MTU M Alarms H Connect external alarms to the Model 7900 nest Refer to Chapter 2 MTU M Installation Procedures User Interface Types There are three types of user interfaces to the MTU M card H System terminal refer to Chapter 4 System Terminal Interface Provides a menu driven interface to the MTU M that allows you to monito...

Страница 14: ...About the Hotwire Model 7900 Basic Maintenance Processor 1 4 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 15: ...l 7900 Nest and nest card termination units is described in separate user s guides Refer to Product Related Documents in About this Guide HANDLING PRECAUTIONS FOR STATIC SENSITIVE DEVICES This product is designed to protect sensitive components from damage due to electrostatic discharge ESD during normal operation When performing installation procedures however take proper static control precautio...

Страница 16: ...ary nest 1 Remove the MTU M from any protective packaging 2 Align the circuit board with the top and bottom card guides of Slot 1 NETWORK LOS AIS BER LOCAL REMOTE REMOTE LOOP BK SYSTEM POWER FAIL SDSL LOS BER LOOP OK FAIL SELECT NEXT ALARMS MAJOR MINOR ABNORM ACO ACTIVE 97 15598 MTU M Slot 1 MTU M POWER FAIL NMS LINK MODEMS ALARMS MAJOR MINOR ABNML ACO ACTIVE C O N S O L E RESET 3 Slide the MTU M ...

Страница 17: ...FROM 1 on Nest 2 2 Connect the primary nest and Nest 3 by connecting the nest expansion cable between J29 TO 3 on the primary nest to J26 FROM 1 on Nest 3 3 Connect the primary nest and Nest 4 by connecting the nest expansion cable between J27 TO 4 on the primary nest to J26 FROM 1 on Nest 4 97 15414 TO 4 TO 2 TO 3 FROM 1 POWER Bgnd 48vB Agnd 48vA TO 4 TO 2 TO 3 FROM 1 POWER J27 48vB Agnd 48vA P6 ...

Страница 18: ...r 23 inch nests could contain up to 80 nest cards a single MTU M and 79 termination units Connecting External Alarms The MTU M provides dry alarm contacts that allow you to connect external alarms to the nest rear panel at J21 The Alarm contacts are energized by the MTU M upon detection of an alarm condition Each alarm relay when closed connects your alarm power to your common to complete your Maj...

Страница 19: ...M for the first time you must enter network configuration and system operational parameters for the MTU M This chapter provides the setup procedures needed to initially configure the MTU M NOTE MTU M initial setup procedures must be performed locally from a VT100 connected through the DB9 Console port on the MTU M front panel ...

Страница 20: ...The Maintenance menu displays 2 At the maint prompt type net The Netconfig menu displays This screen contains the current network management information 3 At the netconfig prompt press Enter A prompt appears asking you if you wish to change the current values 4 Type y at the yes no prompt and press Enter The system displays the default settings 5 Type new at the password prompt You can change your...

Страница 21: ...nfig prompt press Enter A prompt appears asking you if you wish to change the current values 4 Type y at the yes no prompt and press Enter The system displays the default settings 5 Type new at the password prompt You can change your password from the Netcofig menu The changes you make at the Sysconfig menu are stored in a working buffer If you make an error or are unsure of your changes do not sa...

Страница 22: ...ot 2 H Polling Interval Denotes the time the MTU M waits between successive starts of the polling cycle If all of the nest cards can not be polled in this amount of time they may be skipped H Pollto Denotes the maximum amount of time in 256th seconds that the MTU M will wait between the polling of each line card For example if you have 51 nest cards 1 Set your polling range from 2 51 slot 1 is the...

Страница 23: ... M card that allows you to H Monitor the status of HDSL and SDSL nest card termination units xTUs configured as central site office CO xTU Cs H Monitor the status of associated customer premises CP termination units xTU R H Perform loopback testing on xTU C R pairs H Change MTU M operational and network parameters H Reset the unit NOTE The MTU M monitors only those nest card termination units conf...

Страница 24: ...ER LOCAL REMOTE LOOP BK SYSTEM POWER FAIL HDSL LOS BER LOOP A LOOP B 2 Plug the other end into the 9 pin jack on the MTU M front panel If your PC requires a 25 pin connector to the COM port see Appendix A Cable Pin Assignments for the correct cable pinouts 3 Set your terminal parameters as follows 9600 baud 8 bit no parity 1 stop bit no flow control 4 Press Enter to activate the MTU M Main Menu Th...

Страница 25: ...d cable accessories 79xx DB9 79xx Terminal Cable DB9F DB9 M M Gender Changer DB9F DB25M DB25F DB25M Null Modem Adapter or Cable Modem 97 15634 Terminal Cable Gender Change DB9 DB25 Null Modem DB9 DB9F DB9 M M DB9F DB25M DB25F DB25M 3 3 3 3 2 2 3 2 2 2 2 3 3 2 5 5 5 5 7 7 7 RXD TXD Gnd RXD TXD Gnd MTU M POWER FAIL NMS LINK MODEMS ALARMS MAJOR MINOR ABNML ACO ACTIVE C O N S O L E RESET NETWORK LOS A...

Страница 26: ...tus alarm on alarm off or can be abbreviated to the minimum number of characters that uniquely identify it from other options In most cases typing the first one or two characters of the command is sufficient for example s for status NOTE Throughout this document the menu path taken to access the screen is provided at the top of each screen sample The MTU M Main Menu screen appears as follows Menu ...

Страница 27: ... these menu options To suppress menu options type menu off at any MTU M prompt and press Enter Only MTU M prompts are displayed The current menu can be displayed at any time by typing at any MTU M prompt To restore menu options type menu on at any MTU M prompt and press Enter Menu option are restored to the terminal The Menu On Off feature default setting can be set to on or off using the Sysconfi...

Страница 28: ...System Terminal Interface 4 6 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 29: ...led status of a specific xTU C The status of the associated xTU R is monitored through the xTU C To access the MTU M Status menu from the MTU M Main menu type s at the MTU M prompt and press Enter The following menu appears Menu path Main Status Select Command COMMAND DESCRIPTION all enter ALL to select all valid xtu s 2 80 enter xtu id 2 80 Current polling range 2 to 76 Quit Quit Command For stat...

Страница 30: ...xTU C R pair If no remote unit is connected only status for the CO side is displayed Quit Takes you back to the MTU M Main Menu Viewing the General Status of all xTU Cs To access the status of all xTU Cs type a at the Status prompt and press Enter A table containing Alarm Polling and Circuit status information for all xTU Cs appears as follows Menu path Main Status all System Status xTU C R 3 7 9 ...

Страница 31: ...s between the MTU M and xTU C INS In service The xTU C is currently in the MTU M polling cycle Polling rate is selectable from the Maintenance menu OOS Out of service The xTU C R was previously detected and is currently out of service MOS Maintenance out of service The xTU C R has been manually taken out of the MTU M polling cycle The System Status screen example indicates that STU C R 9 is OOS an...

Страница 32: ...rvice In service Circuit state Loop A In service In service Circuit state Loop B In service In service Network input signal In service N A DTR Signal Active DSR Signal Active S N Ratio Loop A 42 0 dB 43 0 dB S N Ratio Loop B 42 5 dB 43 5 dB Hit return to continue The following table provides definitions of the fields contained on Screen 1 of the Circuit Status screen Status Function MTU M poll sta...

Страница 33: ...N Ratio Loop B HDSL only Displays the signal to noise ratio of Loop B Press Enter to view the remaining status of the termination unit Menu path Main Status 2 80 Screen 2 of 2 Status of xDSL Circuit 3 __________________________ xTU C______________ xTU R_____ Card type xDSL E1 G703 xDSL E1 V 35 Loop Mode Loops A B Loops A B Loopback OFF OFF Line encoding B8ZS B8ZS Line build out 0 to 133 feet 0 to ...

Страница 34: ... units H 120 ohm H 75 ohm For DSX 1 compatible units H 0 to 133 feet H 133 to 266 feet H 266 to 399 feet H 399 to 533 feet H 533 to 655 feet Frame type Indicates type of framing in use by the xTU C R pair H Framed H ESF H D4 H Unframed Starting time slot Specifies the starting tine slot for a V 35 to DSX 1 or V 35 to G 703 configuration V 35 Payload Rate Specifies the V 35 CP payload rate 64 throu...

Страница 35: ...nce functions 1 Type p at the MTU M prompt and press Enter A menu displays allowing you to select an xTU C 2 Enter an xTU C ID and press Enter The following menu displays Menu path Main Performance xDSL circuit 2 80 Select Time Period Menu Select Command COMMAND DESCRIPTION A Prev 1 min Select previous 1 minute time period B Curr 15 min Select current 15 minute time period C Prev 15 min Select pre...

Страница 36: ...f data captured is displayed Typing f Curr 1 hr displays from 1 59 minutes of the most current data NOTE If you take the xTU C out of the MTU M polling cycle stoppoll from the Maintenance Menu performance data is no longer collected by the MTU M You can view the most recently collected data by selecting a current time period options B D F I and K that is greater than the amount of time the xTU C h...

Страница 37: ...ted within the specified time period BPV Bipolar Violation Indicates the number of bipolar errors detected within the specified time period FAW A Frame Alignment Word Loop A Indicates the number of times a loss of synchronization error was detected in Loop A within the specified time period FEBE A Far End Bit Error Loop A Indicates the number of errors reported by the remote equipment for Loop A C...

Страница 38: ...MTU M Status and Performance Functions 5 10 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 39: ... Maintenance functions from the MTU M Main Menu type m at the MTU M prompt The Maintenance menu appears as follows Menu path Main Maintenance Maintenance Menu Select Command COMMAND DESCRIPTION time_set set date and time yy mm dd hh mm ss am pm date show date and time sysconfig Display modify MTU M system configuration parameters netconfig Display modify MTU M network configuration parameters aco ...

Страница 40: ...utoff relay on and off clear Clears all information about a specified xTU from the MTU M s status and alarm logs This command is useful when an xTU has been removed from the nest al_clear Clears the current alarm from the MTU M This command does not clear historical performance data stoppoll Stops the MTU M from polling a specified xTU C The operation of the xTU is not affected stoppoll only suspe...

Страница 41: ...ance time_set Maintenance Menu Select Command COMMAND DESCRIPTION time_set set date and time yy mm dd hh mm ss am pm date show date and time sysconfig Display modify MTU M system config parameters netconfig Display modify MTU M network config parameters aco turn on ACO alarm cut off clear clear xtu s status alarm al_clear clear xtu s alarms stoppoll Set status to polling maintenance out of service...

Страница 42: ...ges to MTU M operational parameters do not take effect until you Quit the MTU M Operations Parameters menu and save your changes Menu path Main Maintenance sysconfig MTU M Operations Parameters EEPROM values are VALID Polling Range 2 16 Polling interval 10 seconds Poll time out on 256th s second 30 Initial alarm on off setting ON Initial menu on off setting ON Console port baud rate 9600 baud Hit ...

Страница 43: ...ling time out Denotes the maximum amount of time in 256th seconds that the MTU M will wait between the polling of each line card Initial alarm on off setting Indicates whether or not alarms are automatically displayed on the system terminal as they occur Initial menu on off setting Indicates whether or not menus are displayed on the system terminal Console port baud rate Indicates the baud rate fo...

Страница 44: ... 2 MTu M Installation Procedure for the multiple nest numbering sequence polling interval Valid Values 0 to 255 seconds Default Setting 10 Indicates the amount of time the MTU M waits between successive starts of the polling cycle If all of the nest cards can not be polled in this amount of time they may be skipped pollto Valid Values 0 to 256 in 256th seconds Default Setting 30 Determines polling...

Страница 45: ...n Changes to MTU M Network parameters do not take effect until you Quit the MTU M Operations Parameters menu and save your changes Menu path Main Maintenance netconfig Screen 1 of 3 maint net MTU M Network Parameters Mac Address 000 000 000 000 1 My IP Address 000 000 000 000 2 Subnet Mask 255 255 255 0 3 Default Gateway 255 255 255 255 4 SNMP Manager Address 000 000 000 000 5 Default Gateway Addr...

Страница 46: ...cur System Contact Allows you to enter up to 128 ASCII characters This field is for informational purposes only System Name Allows you to enter up to 128 ASCII characters This field is for informational purposes only System Location Allows you to enter up to 128 ASCII characters This field is for informational purposes only Change Password Allows you to change your MTU M password The default passw...

Страница 47: ...l location of mtu 9 Change Password Change the administrator password Hit return to continue Silencing External Alarms ACO The Alarm Cut Off ACO option on the Maintenance menu is used to shut off an external alarm condition The MTU M front panel ACO LED lights to indicate ACO is on The MTU M front panel also contains an ACO push buton Procedure To turn on ACO 1 Type a at the maint prompt and press...

Страница 48: ...nce statistics as soon as possible after replacing or removing an xTU C to avoid displaying incorrect data Procedure To clear status and alarms 1 Type c at the maint prompt 2 Press Enter 3 Enter the ID of the xTU xtu id you wish to clear Menu path Main Maintenance clear Maint clear Select Command COMMAND DESCRIPTION 2 80 enter xtu id 2 80 Current polling range 2 to 16 Quit Quit Command enter xtu i...

Страница 49: ... specific xTU Procedure To clear alarms 1 Type al at the maint prompt 2 Press Enter 3 Enter the ID of the xTU xtu id you wish to clear Menu path Main Maintenance clear Maint al_clear Select Command COMMAND DESCRIPTION 2 80 enter xtu id 2 80 Current polling range 2 to 16 Quit Quit Command enter xtu id The following message appears maint I HTU C R 5 MUI TASK Wed mar 18 15 19 56 1998 alarms cleared ...

Страница 50: ...move from the MTU M polling cycle The following message appears Polling Maintenance Out of Service takes an xTU C R out of the MTU M s polling loop This does not affect xTU C R s operation but disables the MTU M s communications with the xTU C R 3 Press Enter The following message appears I HTU C R 3 MUI TASK Wed Jul 1 15 10 26 1997 xTU C R placed in Polling MOS Placing the xTU C Back into the MTU...

Страница 51: ...ists of H Major minor and abnormal alarm LEDs H Alarm Cut Off ACO push button and LED to shut off external alarms You can also monitor system and xTU C R status from a terminal connected to the MTU M refer to Chapter 4 System Terminal Interface and Chapter 5 MTU M Status and Performance Functions MTU M POWER FAIL NMS LINK MAJOR MINOR ABNML ACO ACTIVE 97 15665 C O N S O L E RESET MODEM ALARMS ...

Страница 52: ... the alarm condition is performed using the system terminal Minor alarm circuitry is not currently used Alarm Cut Off ACO The ACO push button and LED allow you to manually shut off external alarms generated by the MTU M After pressing ACO the ACO LED lights indicating ACO is active ACO does not prevent alarms from being reported to the MTU M system terminal Reset The RESET push button allows you t...

Страница 53: ...he MTU M monitors and stores alarms These alarms are then displayed automatically or manually from the MTU M front panel or VT100 compatible terminal MTU M front panel alarms are described in Chapter 7 MTU M Front Panel Alarms can be selected to be automatically displayed at the VT100 compatible terminal as they occur or suppressed from automatic display and displayed manually ...

Страница 54: ...e ALARM OFF Clear Reset Alarm Display Pointer Display Display MTU M alarms Redisplay Redisplay MTU M alarms Quit Quit Command Alarms Command Function Alarm on Allows alarms to display at the system terminal Alarm off Prevents alarms from displaying at the system terminal Clear Clears the current MTU M alarm buffer Display Allows you to group and view alarms by category view individual alarms or vi...

Страница 55: ... system terminal using the display alarm command from the MTU M Alarms menu The MTU M display alarm function allows you to H Select alarms by level all major abnormal H Select an individual xTU C alarm all alarms or system alarms MTU M H Select the number of alarms to view from 1 255 or all Display Alarm Option This section provides instructions on how to use the MTU M display alarm function To vi...

Страница 56: ... Display Alarms d Alarm Level Display Menu Select Command COMMAND DESCRIPTION All Select all alarm levels Major Select Major alarms only Minor Select Minor alarms only Info Select Info alarms only Both Select Major and Minor alarms Quit Quit Command select alarm level 2 Select an alarm category from the Alarm Level Display menu NOTE Minor alarms are not currently used ...

Страница 57: ...nter ALL to select all xtu s system enter SYSTEM to select MTU M 2 80 enter xtu id 2 80 Quit Quit Command enter xtu id or SYSTEM or ALL 3 Enter the alarm level from the id menu The following menu appears allowing you to select the number of alarms to display Menu path Main Alarms Display alarm level xtu id system all Select Command 3 COMMAND DESCRIPTION Quit Quit Command all enter ALL to select al...

Страница 58: ...ne 30 00 00 48 1997 status received from new card I HTU C R 8 HSTATUS TASK Wed June 30 00 00 53 1997 Polling state change detected for HTU 3 polling state HTU 3 I HTU C R 5 HSTATUS TASK Wed June 30 00 00 56 1997 status received from new card Hit q to quit or return to continue Alarm Definitions The following section defines major and abnormal alarms Minor alarms are not currently used Major Alarms...

Страница 59: ...r is restored H Manually by selecting the Clear option from the MTU M Maintenance menu Abnormal Alarms Abnormal alarms occur when an xTU C is placed in maintenance out of service MOS Placing an xTU C in MOS takes the xTU C out of the MTU M polling cycle allowing maintenance to be performed without continuously displaying alarms Clearing Abnormal Alarms Abnormal alarms are automatically cleared whe...

Страница 60: ...t the MTU M Y N 3 Type Y and press Enter The MTU M resets and clears all stored performance and alarm data After resetting the MTU M the status of each xTU C displays Resetting the xTU C R Procedure To reset an individual xTU C R pair 1 Type r at the MTU M prompt and press Enter The select command menu appears and prompts you enter an xTU id or system 2 Type the ID of an xTU C 2 80 at the Enter xt...

Страница 61: ...ion that enables a technician to isolate equipment on the DSL circuit to determine where on the circuit trouble may be occurring Loopback takes the system offline Data received from T1 or E1 application equipment is looped back as shown in the following sections Local and remote refer to the point at which the data is looped back In a local loopback the data is reflected back by the local unit the...

Страница 62: ...back functions type l for local at the MTU M prompt and press Enter The following menu appears allowing you to select local or remote loopback testing Menu path Main Loopback Select Command COMMAND DESCRIPTION Local Local xTU Remote Remote xTU Quit Quit Command Select local or remote ...

Страница 63: ...pback tests from being run for 1 minute after power is initially applied to the MTU M or system reset is performed Procedure To run a remote loopback 1 At the Select local or remote prompt type r for remote and press Enter A screen appears and you are prompted to enter an xTU id 2 Enter the number of the xTU C you want to perform loopback testing on and press Enter The following message appears I ...

Страница 64: ...nd remains lit until the loopback is disabled VT100 Terminal or Emulator 97 15630 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 1 Local Loopback Initiated at the CO Unit VT100 Terminal or Emulator 97 15631 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 2 Local Loopback Initiated at the CP Unit ...

Страница 65: ...ht A message appears on the remote end unit reporting that it has been put into loopback Terminal 97 15515 CO CP E1 HDSL 7900 7900 Diagnostic Equipment E1 HDSL 7900 7900 Diagnostic Equipment Loop Bk LED lights AIS AIS Alarm Indication Signal Figure 9 3 Remote Loopback Initiated at the CO Unit VT100 Terminal or Emulator 97 15629 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop...

Страница 66: ...ins lit until the loopback is disabled VT100 Terminal or Emulator 97 15630 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 5 Local Loopback Initiated at the CO Unit VT100 Terminal or Emulator 97 15631 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 6 Local Loopback initiated at the CP Unit ...

Страница 67: ...d The Loop Bk LED on the local initiating unit does not light VT100 Terminal or Emulator 97 15628 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 7 Remote Loopback initiated at the CO unit VT100 Terminal or Emulator 97 15629 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 8 Remote Loopback initiat...

Страница 68: ...ns lit until the loopback is disabled VT100 Terminal or Emulator 97 15630 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 9 Local Loopback Initiated by the CO Unit VT100 Terminal or Emulator 97 15631 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 10 Local Loopback Initiated by the CP Unit ...

Страница 69: ... The Loop Bk LED on the local initiating unit does not light VT100 Terminal or Emulator 97 15628 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 11 Remote Loopback Initiated by the CO unit VT100 Terminal or Emulator 97 15629 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 12 Remote Loopback Initia...

Страница 70: ...ns lit until the loopback is disabled VT100 Terminal or Emulator 97 15630 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 13 Local Loopback Initiated by the CO Unit VT100 Terminal or Emulator 97 15631 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 14 Local Loopback Initiated by the CP Unit ...

Страница 71: ... The Loop Bk LED on the local initiating unit does not light VT100 Terminal or Emulator 97 15628 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 15 Remote Loopback Initiated by the CO unit VT100 Terminal or Emulator 97 15629 CO CP E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED Lights Nest Figure 9 16 Remote Loopback Initia...

Страница 72: ...Testing 9 12 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 73: ...ion defines the pin assignments for the terminal cable from the front panel DB9 connector jack to your system terminal s COM port If your system terminal COM port requires a 9 pin D shell connector use the following pin assignments 97 15702 3 2 5 7 8 3 2 5 7 8 DB9 DB9 RXD TXD GND RTS CTS RXD TXD GND RTS CTS ...

Страница 74: ... pin D shell connector use the following pin assignments NOTE You can build a custom cable using industry standard cable accessories or connect a generic DB9 to DB25 adapter to the terminal cable supplied with the HTU M 97 15703 3 2 5 8 7 2 3 7 4 5 9 Pin RXD TXD GND CTS RTS RXD TXD GND RTS CTS 25 Pin ...

Страница 75: ... Initial alarm on off setting ON Initial menu on off setting ON Console port baud rate 9600 Record your network management configuration parameters Field Default Value Current Value IP Address 000 000 000 000 000 Subnet Mask 000 000 000 000 000 SNMP Manager Address 0 192 1 1 2 Default Gateway Address 000 000 000 000 000 Broadcast Address 255 255 255 255 255 System Contact who System Name what MTUM...

Страница 76: ...Netconfig and Sysconfig Menu Values B 2 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 77: ...ial operational features for the SNMP traps supported The unit supports the following traps H warmStart H linkUp H linkDown warmStart SNMP Trap Description Possible Cause warmStart The unit has reinitialized itself The trap is sent after the unit resets and stabilizes There are no variable bindings H Reset command H Power disruption ...

Страница 78: ...operational H linkDown The unit recognizes that one of the communication interfaces is not operational SNMP Trap Description Possible Cause linkUp The interface for the local or remote unit is up H Units are up H MTU M completed initial power up or reset linkDown The interface for the local or remote unit is down H One of the unit s network interfaces is down ...

Страница 79: ...munications network interface Cyclic Redundancy Check A mathematical method of confirming the integrity of received digital data Clear to Send An EIA lead standard for V 24 circuit CT 106 an output signal DCE to DTE Code Violation Detected when using HDB3 coding format this is equivalent to a BPV when using AMI coding Data Communications Equipment The equipment that provides the functions required...

Страница 80: ...module at the CO central office or central site end of an HDSL connection Also known as a Line Termination Unit LTU Host Termination Unit Maintenance A carrier mounted module used to perform maintenance operations on one or more HTU R and HTU C modules Host Termination Unit Remote The module at the CP customer premises end of an HDSL connection Also known as a Network Termination Unit NTU Host Ter...

Страница 81: ...L Termination Unit Remote The module at the CP customer premises end of an HDSL connection Also known as a Network Termination Unit NTU SDSL Termination Unit SNMP The SNMP compatible version of the Maintenance Processor Transmit Data Pin 2 of the EIA 232 interface that is used by the DTE to transmit data to the modem Conversely the modem uses Pin 2 to receive data from the DTE A term for a digital...

Страница 82: ...Glossary GL 4 7900 A2 GB20 00 March 1998 This page intentionally left blank ...

Страница 83: ...etwork Configuration Netconfig Parameters 3 2 System Configuration Sysconfig Parameters 3 3 Installation Procedures 2 1 Additional Nests 2 3 External alarms 2 4 MTU M 2 1 primary to expansion nests 2 3 L linkUp and linkDown traps C 2 local loopback test 9 6 loopback tests 9 1 Accessing 9 2 Ending a loopback 9 3 HDSL E1 Loopback 9 6 HDSL T1 Loopback 9 4 Local Loopback 9 3 Remote Loopback 9 3 SDSL E...

Страница 84: ...Resetting the MTU M 8 8 Resetting the xTU C R 8 8 S service information A Setup Instructions 3 1 SNMP linkUp and linkDown C 2 traps C 1 warmStart C 1 Sysconfig Menu Values B 1 T system terminal interface 4 1 testing 9 1 traps SNMP C 1 U User interfaces 1 3 W warmStart C 1 warranty telephone number A ...

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