Maintenance-Object Repair Procedures
555-233-143
8-266
Issue 1 May 2002
Figure 8-10.
Stratum-4 Synchronization with Unduplicated ATM PNC
NOTE:
The TN722 DS1 Interface circuit pack does not provide a synchronization
reference as reliably as the TN767 or TN464C circuit packs. Therefore,
administer the TN767 or TN464C circuit packs as the primary or secondary
sources.
Stratum-3 Synchronization
Stratum-3 synchronization is not supported in S8700 Multi-Connect with ATM
PNC.
Synchronization Troubleshooting
A significant part of the Synchronization Recovery Strategy for a S8700
Multi-Connect with ATM PNC resides in the ATM switch’s clock hardware,
firmware, and software. S8700 Multi-Connect monitors synchronization
performance and alarms any faulty components. See
Synchronization)’’ on page 8-1509
Clock
External T1/E1
External T1/E1
secondary
primary
ATM switch fabric
ATM timing distribution
Interface
module
Interface
module
Interface
module
ATM PNC
DEFINITY
PPN
DEFINITY
EPN
OC3
OC3
ATM-EI
ATM-EI
Tone clock
Tone clock
DS1
DS1
DS1
DS1
T1-splitter
T1-primary
T1-secondary
iodfst4 LJK 011998
Содержание S8700 Series
Страница 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Страница 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Страница 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Страница 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Страница 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Страница 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...
Страница 1121: ...CARR POW Carrier Power Supply Issue 1 May 2002 8 399 555 233 143 Figure 8 19 Power Distribution Unit J58890CH 1 ...
Страница 1447: ...E DIG RES TN800 reserve slot Issue 1 May 2002 8 725 555 233 143 E DIG RES TN800 reserve slot See ASAI RES ...
Страница 1735: ...LGATE AJ Issue 1 May 2002 8 1013 555 233 143 LGATE AJ See BRI SET LGATE BD See BRI BD LGATE PT See BRI PT ...
Страница 1846: ...Maintenance Object Repair Procedures 555 233 143 8 1124 Issue 1 May 2002 Figure 8 62 TN787 MMI MULTIMEDIA INTERFACE CIRCUIT PACK ...