TONE-BD (Tone-Clock Circuit)
Issue 1 May 2002
8-1661
555-233-143
Figure 8-98.
Duplex-Reliability Configuration
High-Reliability Configuration
The high-reliability configuration shown in
duplicated control network, and duplicated IPSIs in the IPSI-connected port
networks. With this configuration, every IPSI-connected EPN must have
duplicated IPSIs. The control network is duplicated so that a single fault in the
control network, such as a bad Ethernet switch, won’t bring the whole system
down. The non-IPSI-connected port networks have unduplicated Tone-Clock
boards. Each EPN’s Tone-Clock circuit is active for both tones and clock signals
for its port network.
EI
EPN 3
Server A
Server B
IPSI
EI
EPN 2
IPSI
EI
EPN 1
Control Network A
Bearer Network
T/C
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 ...