Maintenance-Object Repair Procedures
555-233-143
8-1662 Issue 1 May 2002
Figure 8-99. High-Reliability Configuration
Critical-Reliability Configuration
The critical-reliability configuration shown in Figure 8-100 has full duplication of
the following options: servers, control networks, IPSIs and PNCs (bearer
networks). As with the high-reliability configuration, this configuration also
requires that IPSI-connected port networks have duplicated IPSIs. This
configuration also requires that the non-IPSI-connected port networks have
duplicated Tone-Clock boards (either TN2182 or TN780).
EI
EPN 3
Server A Server B
IPSI IPSI
EI
EPN 2
IPSI IPSI
EI
EPN 1
Control Network A Control Network B
Bearer Network
T/C
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