ATM PNC-DUP (ATM PNC Duplication)
Issue 1 May 2002
8-245
555-233-143
Steady State LEDs
The LEDs of PNC components in a stable duplicated system should appear as
follows:
■
For an active ATM EI (functioning as Archangel) in an EPN without IPSIs,
its amber LED’s flash pattern is 2 seconds on/200 ms off.
■
For a standby ATM EI in an EPN without IPSIs, it’s amber LED is off.
■
For an active ATM EI in an EPN with IPSIs, its amber LED is on steady.
■
For an standby ATM EI in an EPN with IPSIs, its amber LED is off.
PNC State of Health
PNC-DUP software monitors the health of the two PNCs as determined by their
state-of-health (SOH) vectors, and initiates an interchange when the health of the
active falls below that of the standby (unless prevented from doing so by a PNC
lock, busyout, or antithrashing mechanism). Potentially service-disrupting faults
that occur in a PNC’s components are reported to PNC-DUP and incorporated in
the affected PNC’s state of health. The SOHs of both PNCs are displayed on the
status pnc form, as shown in
.
Figure 8-9.
Status PNC form with standby PNC fully In-Service
status pnc page 1 of 1
PORT-NETWORK CONNECTIVITY
Duplicated? yes
Software Locked? no
Standby Busied? no
Standby Refreshed? yes
Interchange Disabled? no
A-PNC B-PNC
Mode: active Mode: standby
State of Health: functional State of Health: functional
Inter PN Index: 00.00.00.00 Inter PN Index: 00.00.00.00
Major Alarms: 0 Major Alarms: 0
Minor Alarms: 0 Minor Alarms: 0
Warning Alarms: 0 Warning Alarms: 0
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 ...