Lucent DDM-2000 OC-3 User And Service Manual page 271

363-206-285
Issue 2, February 2000
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6. All shelves in the network being upgraded must have the
cross-connect mode set to manual. Use the rtrv-ne/set-ne
command to verify/set the cross-connect mode
(set-ne:tid=tid:crs=manual).
7.
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. 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:
If STS-1 cross-connections exist presently and VT1.5
cross-connections will be required, conversion of STS-1
cross-connections to VT1.5 cross-connections must be
performed before ring software is loaded into the system.
If required, at all shelves in the network, use the
cnvt-crs:address1,address2 command to convert all
low-speed DS1 STS-1 cross-connections to corresponding VT1.5
cross-connections.
8. Use rtrv-sync: command to check timing mode and
parameters for proper provisioning. If necessary, use set-sync:
command to change timing provisioning to that specified on the
work order.
DDM-2000 OC-3 M
Circuit Order:
ULTIPLEXER
NTP-029
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