Cisco ONS 15454 DWDM Installation And Operation Manual page 315

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 OPT-BST by connecting the LINE TX port to the LINE RX port using a
Step 9
patchcord and 10-dB bulk attenuator.
Step 10 Verify that the OSC link becomes active on the west OSCM card. (The OSC termination must be already
provisioned. If not, complete the
the OSC link becomes active, continue with
following steps:
Modify the OSC Fail Low thresholds. Click the Provisioning > Optical Line > Optics Thresholds
a.
tabs and change the Port 4 opwrMin (minimum power) to –40 dBm.
Modify the COM TX Fail Low Threshold. Change the Port 2 opwrMin (minimum power) to
b.
–30 dBm.
If the OSC link turns up, continue with
c.
card from the OPT-BST.
d. Create a loopback on the OSCM card by connecting patch cable from the OSC TX port to the
OSC RX port using a 10-dB bulk attenuator.
e. If the OSC link turns up, replace the OPT-BST card. If the OSC link does not turn up, replace the
OSCM card.
Note
If the node has express bands or channels, complete the
Step 11
on an OADM Node with OSCM Cards" task on page
channels, continue with
If connections configured in pass-through mode are present (noted in Steps
Step 12
"DLP-G89 Verify OADM Node Pass-Through Channel Connections" task on page
with
If connections have add/drop connections, complete the
Step 13
on an OADM Node with OSCM Cards" task on page
Stop. You have completed this procedure.
September 2005
NTP-G48 Perform the OADM Node Acceptance Test on a Symmetric Node with OSCM 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.
Due to the OSC signal loopback, an SDCC Termination Failure alarm might be raised.
Step 12.
Step 13.
"NTP-G38 Provision OSC Terminations" procedure on page
Step 11. If the OSC link does not turn up, complete the
Step 11. If the OSC link is still down, disconnect the OSCM
"DLP-G85 Verify Express Channel Connections
4-44. If the node does not have express bands or
"DLP-G93 Verify Add and Drop Connections
4-53.
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
3-84.) If
4-35