Avaya S8700 Maintenance Manual page 1674

Maintenance-Object Repair Procedures
Table 8-371. IPSI B is Active
Function
Tone-Clock
PKT-INT
Archangel
Table 8-372. IPSI A Provides Tone-Clock; Fall-Back to EI-EAL
Function
Tone-Clock
PKT-INT
Archangel
Table 8-373. IPSI B Provides Tone-Clock; Fall-Back to EI-EAL
Function
Tone-Clock
PKT-INT
Archangel
System Configurations with Duplicated IPSIs
The following two figures show two system configurations.
critical-reliability system (with duplicated IPSIs and directly connected PNCs).
Figure 8-50 on page 8-954
IPSIs and CSS-connected PNCs).
8-952 Issue 1 May 2002
IPSI A IPSI B
X
X
X
IPSI A IPSI B
X
IPSI A IPSI B
X
shows a critical-reliability system (with duplicated
IPSI in
EI Another PN
IPSI in
EI another PN
X
X
IPSI in
EI Another PN
X
X
Figure 8-49
555-233-143
shows a