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Maintenance Object Repair Procedures
555-233-123
10-1840
Issue 4 May 2002
The Enhanced Integrated CSU is for use in the United States of America with
1.544 Mbps DS1 service. For further details on the 120A1 CSU Module refer to
DEFINITY Communications System Generic 1, Generic 2, and Generic 3 V1 and
V2 - Integrated CSU Module Installation and Operation.
The UDS1-BD and 120A1 CSU Module support on-demand loopback tests that
assist in the detection of faults between the UDS1-BD circuit pack and the CSU
Module, between the Integrated CSU and the optional Customer Premises
Loopback Jack, or between the Integrated CSU and remote CSU. These
loopback tests are explained in detail later in this UDS1-BD MO, but
gives a high level overview of the loopback points.
Figure 10-100.
High Level Overview Of Loopback 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
Содержание Definity SI
Страница 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Страница 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Страница 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Страница 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Страница 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Страница 2763: ...VC DSPPT Issue 4 May 2002 10 1977 555 233 123 Figure 10 107 VC Circuit Pack DSP Port Local TDM Loopback Test...
Страница 2776: ...Maintenance Object Repair Procedures 555 233 123 10 1990 Issue 4 May 2002 Figure 10 109 VC Circuit Pack Summer Port Loopback Test...
Страница 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...
Страница 2968: ...Index 555 233 123 IN 10 Issue 4 May 2002...