Cisco ONS 15454 DWDM Installation And Operation Manual page 317

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 patchcord and a 10-dB bulk attenuator.
Step 10 Verify that the OSC link becomes active on the west OSC-CSM card. (The OSC termination must be
already provisioned. If not, complete the
page
Note
If the OSC link becomes active, continue with
Step 11
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.
d. If the OSC link turns up, continue with
If the node has express bands or channels, complete the
Step 12
on an OADM Node with OSC-CSM Cards" task on page
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
Step 14 If connections have add/drop connections, complete the
on OADM Node with OSC-CSM Cards" task on page
Stop. You have completed this procedure.
September 2005
NTP-G49 Perform the OADM Active Node Acceptance Test on a Symmetric Node with OSC-CSM Cards
Configuring a channel in pass-through mode means that 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.
3-84.)
Due to the OSC signal loopback, an SDCC Termination Failure alarm might be raised.
Step
Step 14.
"NTP-G38 Provision OSC Terminations" procedure on
Step 12. If the OSC link does not turn up, perform the
Step 11. If not, continue with Step b.
Step 12. If it does not turn up, replace the OSC-CSM card.
"DLP-G86 Verify Express Channel Connections
4-46. If the node does not have express bands
13.
"DLP-G94 Verify Add and Drop Connections
4-56.
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
Step 9. If a channel is configured in
5 and 7), complete the
4-49. If not, continue
4-37