Nortel Meridian 1 Option 11C Manual page 61

Coordinate the tests
1 When a technician at the far end requests a remote loopback on the local
Meridian 1:
• Disable the DCHI (for PRI DCHL or BCHL) using LD 96:
LD 96
DIS DCH N
• Disable the DTI/PRI card and activate remote loopback mode
using LD 60.
LD 60
DISL C
RLBK C
2 To run the remote self test (external loopback test) through a loopback on
the far end Meridian 1:
• Call a technician at the far end. Ask for remote loopback mode
on the facility that is to be tested.
• When loopback mode at the far end is confirmed, disable the
DCHI (for PRI DCHL or BCHL) using LD 96:
LD 96
DIS DCH N
• Disable the DTI/PRI card and run loopback test using LD 60:
LD 60
DISL C
RMST C
Note: The Remote Self test (external loopback test) can be run through
any loopback that is external to the DTI/PRI card. The loopback can
range from a loopback connector plugged into the NTBK04 cable to a
Remote Loopback on the far end DTI/PRI, or at any point in between on
the DS-1 facility.
Figure 5 on page 62 shows the relationship between the remote loopback test
and the link diagnostic test.
DTI/PRI Maintenance
Option 11C
Page 61 of 100
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