Avaya S8700 - Page 1310

Maintenance-Object Repair Procedures
555-233-143
8-588 Issue 1 May 2002
Figure 8-23. High-Level Overview Of Loop-Back Points
CPE
LPBK
JACK
NET
SMRT
JACK
CSU
MOD
NET
SMRT
JACK
CPE
LPBK
JACK
DS1
BRD
CSU
MOD
DS1
BRD
NET-
WORK
CSU module to CSU module
Remote end
NETWORK ENVIRONMENT
Local end
NETWORK
SMRT
JACK
BLB
R-LLB
CPE
LPBK
JACK
DS1
BOARD
Remote end loop backs (* CSU or External CSU)
NETWORK
SMRT
JACK
CSU*
MOD
CSU
MOD
CLJ-LB LLB RLB ELB
PLB
CPE
LPBK
JACK
DS1
BOARD
Local end loop backs