Lucent DDM-2000 OC-3 User And Service Manual page 98

NTP-003
: System Turnup
Page 4 of 6
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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, either all VT1.5 or STS-1.
2. If all 28 VT1.5s (DS1s) in an STS-1 are being passed
through at a node in a VT1.5 path-switched ring, then
the cross-connection may be provisioned as either a
pass-through STS-1 or VT1.5. However, if you
anticipate dropping VT1.5s from the pass-through
node in the future, you should provision the
pass-throughs as VT1.5 cross-connections. OC-3 ring
Releases 7.0 and earlier do not support the command
(cnvt-crs) for converting an STS-1 to a VT1.5
cross-connect. Also, provisioning now as a VT1.5
cross-connect will avoid a hit on traffic if the STS-1
cross-connect has to be converted to 28 VT1.5
cross-connects to drop DS1s at a later time.
3. On STS-1 path-switched rings, all nodes in the ring
must be provisioned as STS-1 cross-connections.
NOTE:
The following commands may be used to convert, delete,
enter, and retrieve cross-connections: cnvt-crs,
dlt-crs-sts1, dlt-crs-vt1, ent-crs-sts1,
ent-crs-vt1, rtrv-crs-sts1, and rtrv-crs-vt1.
See the Commands and Reports section of this manual for a
description of commands. See Cross-Connection
Provisioning in the Administration and Provisioning section
of this manual for more information on cross-connection
provisioning.
Determine the necessary cross-connections for each node from
the work order or circuit order.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285