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Remote Loopback Test
7900-A2-GB20-00
When a remote loopback is enabled, the red Loop Bk LED on the front panel of
the remote (far-end) unit lights up and remains lit until the loopback is disabled.
The Loop Bk LED on the local (initiating) unit does not light.
Nest
Diagnostic
Equipment
VT100 Terminal
or Emulator
Figure 9-11. Remote Loopback Initiated by the CO unit
Diagnostic
Equipment
Nest
Figure 9-12. Remote Loopback Initiated by the CP Unit
March 1998
CO
Loop Bk
LED Lights
CO
Loop Bk
LED Lights
CP
Diagnostic
E1 HDSL
Equipment
7900
7900
97-15628
CP
Diagnostic
E1 HDSL
Equipment
7900
7900
VT100 Terminal
or Emulator
Testing
97-15629
9-9
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