19-60
Cisco ONS 15454 Procedure Guide, R5.0
September 2005
Chapter 19 DLPs A200 to A299
DLP-A295 Perform a Manual Span Upgrade on a Path Protection
DLP-A295 Perform a Manual Span Upgrade on a Path Protection
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.
Step 1 Complete the “DLP-A197 Initiate a Path Protection Force Switch” task on page 18-68 to apply a Force
switch on the span that you will upgrade.
Step 2 Remove the fiber from both endpoint nodes in the span and ensure that traffic is still running.
Step 3 Remove the OC-N cards from both span endpoints.
Step 4 For both ends of the span, 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 signal falls within the acceptable range. See Table 2-3 on page 2-15 for OC-N
card transmit and receive levels.
Step 9 Complete the “DLP-A43 Install Fiber-Optic Cables for Path Protection Configurations” task on
page 17-49 to attach the fiber to the cards. Wait for the IMPROPRMVL alarm to clear and the cards to
become active.
Step 10 Complete the “DLP-A198 Clear a Path Protection Force Switch” task on page 18-70 when cards in both
endpoint nodes have been successfully upgraded and all the facility alarms (LOS, SD, or SF) are cleared.
Step 11 Return to your originating procedure (NTP).
Purpose This task upgrades path protection spans to a higher OC-N speed.
Repeat the task for each span to upgrade the entire ring 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
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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