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

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363-206-204
Release 7 Installation Tests
Issue 9 October 1998 6-19
1. At the first drop and continue node enter:
ent-crs-sts1:m-1,a:cct=dc,ring=m1:y;
The parameter ring defines the direction of the continued sig-
nal. Where the traffic must be continued on the ring transmit-
ting to the neighboring drop and continue node. See Note
Below.
Ring m1 is the ring that is received on the main-1 OLIU and
is transmitted on the main-2 OLIU.
Ring m2 is the ring that is received on the main-2 OLIU and
is transmitted on the main-1 OLIU.
For VT1.5 cross-connections, once the first VT drop and con-
tinue cross-connection defines the ring direction, all other VT
drop and continue cross-connections at that node are forced
to use that ring rotation.
2. At the second drop and continue node enter:
ent-crs-sts1:m-1,a:cct=dc,ring=m2:y;
8. Check each ring timeslot to be sure it has two end cross-connect and all
other nodes have pass-throughs configured. Use Office Records and Table
6-2 to verify this.
Protection Switch Test
This test verifies rings protection switching upon fiber cut.
1. At Site1NE1 verify that no alarms exist.
2. Enter the command
rtrv-state-path;
.
3. Under the ‘act’ or active column, note whether traffic is received on M1
(main-1) OLIU or M2 (main-2) OLIU.
4. Disconnect the receive or ‘IN’ fiber of the OLIU receiving traffic (as deter-
mined by the previous step).
5. Enter the command
rtrv-state-path;
.
6. Verify that all traffic has switched from the OLIU with the disconnected fiber
to the OLIU that is still connected.
7. Reconnect the receive or ‘IN’ fiber.
8. Verify that alarms clear. If alarms do not clear refer to the ‘Troubleshooting’
Section of this manual. Continue with the next shelf.