4-12
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 4 Perform Node Acceptance Tests
DLP-G310 Verify ROADM Node Pass-Through Channels
DLP-G310 Verify ROADM Node Pass-Through Channels
Note Throughout this task, west refers to Slots 1 through 8, and east refers to Slots 10 through 17.
Step 1 Create a physical loopback on the west OPT-BST or OSC-CSM by connecting the LINE TX port to its
LINE RX port. For OPT-BST cards, connect a 10-dB bulk attenuator to the fiber. (OSC-CSM cards do
not require attenuation.)
Caution Failure to use proper attenuation might damage equipment.
Step 2 If an OPT-PRE amplifier is installed on the west side (where the physical loopback was created),
perform the following steps. If not, continue with Step 3.
a. Display the OPT-PRE card in card view, then click the Provisioning > Optical Line >
Optics Thresholds tabs.
b. Under Types, click Alarm, then click Refresh. The alarm thresholds for the OPT-PRE will appear.
c. Double click the Power Failure Low table cell for Port 1 (1-Line-2-1 RX) and delete the current
value.
d. Type a new value of –30. Press Enter on your computer, then click Apply in the CTC window.
e. If an OPT-PRE is installed on the east side, complete Steps a through d for the east OPT-PRE. If an
OPT-PRE is not installed on the east side, continue with Step 3.
Step 3 Wait 2 to 3 minutes, then in node view click the Alarms tab. Verify that the LOS alarms on the west
OSCM or OSC-CSM card, and the OPT-BST card have cleared. The clearing of the LOS alarms
indicates that the OSC link is active on the west side.
Note An SDCC Termination Failure alarm will continue to appear due to the OSC signal loopback.
Step 4 Display the west 32WSS card in card view.
Step 5 Click the Maintenance tab.
Purpose This task verifies the signal flow through a ROADM node for pass-through
channels. Configuring a channel pass-through mode means that the
channel passes through both 32WSS cards. The channel passes through the
first 32WSS from the COM RX port to the EXP TX port. In the second
32WSS, the channel goes from the EXP RX port to the COM TX port. The
channel is not terminated inside the node.
Tools/Equipment A tunable laser or eight TXP_MR_2.5G cards covering the 32 C-band
wavelengths (see Table 4-1 on page 4-4)
An optical power meter or optical spectrum analyzer
2 bulk attenuators (10 dB) with LC connectors
Prerequisite Procedures “DLP-G46 Log into CTC” task on page 2-25
Required/As Needed Required
Onsite/Remote Onsite
Security Level Superuser
To Next Page
Loading...
