Cisco ONS 15454 DWDM Installation And Operation Manual page 261

Chapter 4 Perform Node Acceptance Tests
Note
If no channels are configured in pass-through mode, continue with
Step 8
pass-through mode, mark it and skip the related optical test for the express, add and drop sections.
Channel pass-through connections are verified separately.
Create a loopback on the west OSC-CSM card by connecting the LINE TX port to the LINE RX port
Step 9
using a patch cord and 10-dB bulk attenuator.
Verify that the OSC link becomes active on the west OSC-CSM card. (The OSC termination must be
Step 10
already provisioned. If not, complete the
Note
Step 11 If the OSC link becomes active, continue with
following troubleshooting steps:
Remove the 10-dB bulk attenuator between the LINE TX and LINE RX connection. If the OSC link
a.
becomes active, continue with
Modify the OSC Fail Low thresholds. Click the Provisioning > Optical Line > Optics Thresholds
b.
tabs and change the Port 6 opwrMin (minimum power) to –40 dBm.
Modify the COM TX Fail Low Threshold. Change the Port 3 opwrMin (minimum power) to
c.
–30 dBm.
If the OSC link turns up, continue with
d.
Step 12 If the node has express bands or channels, complete the
Connections—OADM Node with OSCM Cards" task on page
bands or channels, continue with
If connections configured in pass-through mode are present (noted in Steps
Step 13
"DLP-G89 Verify OADM Node Pass-Through Channel Connections" task on page
with
If connections have add/drop connections, complete the
Step 14
on OADM Node with OSC-CSM Card" task on page
Stop. You have completed this procedure.
September 2004
Configuring a channel in pass-through mode means the channel is dropped in one direction by
an AD-xC-xx.x card on one side (east or west) of the node, then added by another AD-xC x.xx
card on the opposite side in the same direction. The channel is not terminated inside the node.
Due to the OSC signal loopback, a SDCC Termination Failure alarm might be raised.
Step 14.
NTP-G49 Perform the Symmetric OADM Node with OSC-CSM Cards Acceptance Test
"DLP-G75 Create OSC Terminations" task on page
Step 12. If the OSC link does not turn up, perform the
Step 12. If not, continue with Step b.
Step 12. If it does not turn up, replace the OSC-CSM card.
"DLP-G85 Verify Express Channel
Step 13.
"DLP-G94 Verify Add and Drop Connections
4-35.
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
Step 9. If a channel is configured in
4-26. If the node does not have express
5 and 7), complete the
4-29. If not, continue
3-61.)
4-19