19-58
Cisco ONS 15454 Procedure Guide, R5.0
September 2005
Chapter 19 DLPs A200 to A299
DLP-A294 Perform a Manual Span Upgrade on a Four-Fiber BLSR
Step 4 From both endpoints, in node view right-click each OC-N slot and choose Change Card.
Step 5 In the Change Card dialog box, choose the new OC-N card type.
Step 6 Click OK.
Step 7 Complete the “NTP-A16 Install the OC-N Cards” procedure on page 2-6 to install the new OC-N cards
in both endpoints.
Step 8 Verify that the transmit and receive signals fall within the acceptable range. See Table 2-3 on page 2-15
for OC-N card transmit and receive levels. If the receive level falls outside the acceptable range for that
card, attenuate accordingly.
Step 9 Complete the “DLP-A44 Install Fiber-Optic Cables for BLSR Configurations” task on page 17-52 to
attach the fiber to the cards. Wait for the IMPROPRMVL alarm to clear and the cards to become active.
Step 10 When cards in both endpoint nodes have been successfully upgraded and all the facility alarms (loss of
signal [LOS], SD, or SF) are cleared, remove the Force switch from both endpoints on the upgraded span.
See the “DLP-A194 Clear a BLSR Force Ring Switch” task on page 18-66.
Step 11 Perform an exercise ring test to check the BLSR ring functionality without switching traffic. See the
“DLP-A217 BLSR Exercise Ring Test” task on page 19-10.
Step 12 Repeat this task for each span in the BLSR. When you are done with each span, the upgrade is complete.
Step 13 Return to your originating procedure (NTP).
DLP-A294 Perform a Manual Span Upgrade on a Four-Fiber BLSR
Warning
Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed
circuitry could constitute an energy hazard.
Statement 206
Caution Do not perform any other maintenance operations or add any circuits during a span upgrade.
Note All spans connecting the nodes in a BLSR must be upgraded before the bandwidth is available.
Purpose This task upgrades a four-fiber BLSR span to a higher OC-N rate.
Repeat the task to upgrade each span to the higher OC-N rate. To
downgrade a span, repeat this task but choose a lower-rate card in
Step 5.
Tools/Equipment Higher-rate cards
Compatible hardware necessary for the upgrade
Attenuators might be needed for some applications
Prerequisite Procedures DLP-A60 Log into CTC, page 17-66
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher
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