Lucent Technologies DDM-2000 OC-3, Руководство по установке

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9-10 Issue 9 October 1998
363-206-204
Release 13 (TARP) Installation Tests
and set the
address=dcc-all
and
communications=disabled
(far-end communications).
5. After a few moments, check that no alarms are present (that is, no FAULT
LED lighted on any circuit packs). If alarms are present, press the UPD/
INIT pushbutton on the SYSCTL. If alarms do not clear, refer to the "Trou-
bleshooting" section of this manual.
6. To test each DS1 or DS3 channel through to the cross-connect panel or ter-
minating equipment, its cross-connect map has to be made at the DDM
OC-3 Shelf.
7. Enter DS1 or DS3/EC-1 cross-connects according to the OC-3 shelf config-
uration. Table 9-1 contains the cross-connect map required to test DS1
service on function groups A,B and C of this DDM-2000 OC-3 shelf.
8. Enter DS1 cross-connects as follows:
ent-crs-vt1:m-1-all,a-all:cct=twoway:y;
NOTE
:
The ‘all’ command can be used for a range of address’.
9. Enter DS3/EC-1 cross-connects as follows:
ent-crs-sts1:m-1,a:y;
10. Assure the appropriate cross-connect map is in place in the shelf by enter-
ing the command
rtrv-crs-vt1;
.
Procedure for DS1 Testing
1. Beginning with address ‘a-1-1’, place a physical DS1 loopback at ONLY this
address at the DSX-1 panel. If more than one loopback is present incorrect
wiring may not be apparent.
2. The following command and parameters test the DS1 channel’s cabling for
60 seconds.
Issue the command:
test-trmsn-t1:a-1-1
direction (mux)=demux
duration (1)=<return>
3. If transmission is not error-free, correct the problem by checking circuit
packs and associated cabling.
4. Move the physical DS1 loopback to the next DS1 channel at the DSX-1
panel; press UPD to clear the alarm caused by removing the loopback
plug. Verify that no alarms exist and continue testing the next channel.