NTP-024: Circuit Order 363-206-285
Page 9 of 24 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
27.
!
CAUTION:
Critical or Major alarms will be generated if
cross-connections are not made on the new OC-12 shelf
before splicing it into the network.
NOTE:
In ring configurations, you should use the following rules in
establishing cross-connections in each ring:
1. All drop connections (including DRI, if present) from
the same STS-1 timeslot must be provisioned the
same, all STS-1.
2. On STS-1 path-switched rings, all nodes in the ring
must be provisioned as STS-1 cross-connections.
NOTE:
Up to 12 DS3/EC-1s, 4 OC-3s, or 8 STS-3cs may be
terminated in an OC-12 ring network. Once a
DS3/EC-1/OC-3/STS-3c is terminated, that timeslot must be
reserved in both directions around the ring to the far end.
Therefore, if a DS3/EC-1/OC-3/STS-3c is terminated
(cross-connected) to a function group on a near-end and
far-end terminating shelf, it must also be pass-through
cross-connected in every shelf in the network. See
Cross-Connection Provisioning in the Administration and
Provisioning section of this manual for more information on
cross connections.
Use the or ent-crs-sts1: command at the new OC-12 shelf to
make all required cross-connections, including pass-through
cross-connections and cross-connections for the CO OC-3 shelf
to be added to this OC-12 shelf (for example,
ent-crs-sts1:m-1,m-1). Pass-through cross-connections
must be made at the new OC-12 shelf to correspond to each
terminating cross-connection present on every shelf in the OC-12
ring network. Terminating cross-connections must be made at the
new OC-12 shelf to correspond to each terminating
cross-connection present on the existing CO OC-3 shelf.
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