NTP-023: Circuit Order 363-206-285
Page 3 of 8 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
DO ITEMS BELOW IN ORDER LISTED. . . . . FOR DETAILS, GO TO
2. Before beginning this procedure, verify ring integrity and path
protection switching function. At the start node, remove the
receive (IN) fiber from ONE of the MAIN OLIUs. Verify no critical
(CR) alarms are present. Reconnect the fiber and wait until
alarms clear. Repeat this step on the other MAIN OLIU.
3. Notify maintenance center that alarms will be generated.
4. Use rtrv-map-network: and rtrv-map-neighbor:
commands to determine the configuration of the OC-3 ring being
upgraded and how the individual nodes are connected.
5. Upgrade all nodes to OC-3 TARP Release 13 or later software.
DLP-532A. In-Service Local Software Download
DLP-562B. In-Service Remote Software Download
6.
!
CAUTION:
Sync autoconfiguration must be enabled at each line-timed
node in the network.
At each line-timed node in the network, use
set-oc3:syncmsg=Kbyte/Sbyte command to set Kbyte or
Sbyte sync messages. Use set-sync:auto=enabled
command to enable Sync auto-reconfiguration.
7. At the starting Node 1, switch STS-1 and/or VT1.5 path from
MAIN 2(P) to MAIN 1 with the switch-path-sts1: and/or
switch-path-vt1: commands.
8. Use the switch-sync: command to force line timing from MAIN
1.
9. Remote login to Node 2 and switch STS-1 and/or VT1.5 path from
MAIN 1 to MAIN 2(P) with the switch-path-sts1: and/or
switch-path-vt1: commands.
10. Use the switch-sync: command to force line timing from MAIN
2(P).
DLP-532
DLP-562
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