Cisco ONS 15454 Series - DLP- A296 Perform a Manual Span Upgrade on a 1+1 Protection Group

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Cisco ONS 15454 Procedure Guide, R5.0
September 2005
Chapter 19 DLPs A200 to A299
DLP-A296 Perform a Manual Span Upgrade on a 1+1 Protection Group
DLP-A296 Perform a Manual Span Upgrade on a 1+1 Protection Group
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 Initiate a Force switch on the ports you will upgrade, beginning with the protect port:
a. In node view, click the Maintenance > Protection tabs.
b. Choose the protection group from the Protection Groups area. In the Selected Group area, the
working and protect spans appear.
c. In the Selected Group area, click the protect OC-N port.
d. In Switch Commands, choose Force.
e. Click Yes in the confirmation dialog box.
FORCE-SWITCH-TO-WORKING appears next to the forced span.
Step 2 If you are upgrading a multiport card, repeat Step 1 for each port.
Step 3 Remove the fiber from both ends of the span and ensure that traffic is still running.
Step 4 Remove the OC-N cards from both span endpoints.
Step 5 At both ends of the span, in node view, right-click the OC-N slot and choose Change Card.
Step 6 In the Change Card dialog box, choose the new OC-N card type.
Step 7 Click OK.
Step 8 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 9 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 10 Complete the “DLP-A428 Install Fiber-Optic Cables in a 1+1 Configuration” task on page 21-8 to attach
the fiber to the cards. Wait for the IMPROPRMVL alarm to clear and the cards to become active.
Step 11 When cards on each end of the span have been successfully upgraded and all the facility alarms (LOS,
SD, or SF) are cleared, remove the Force switch:
a. In node view, click the Maintenance > Protection tabs.
Purpose This task upgrades a linear span to a higher OC-N rate. To downgrade a
span, follow this task but choose a lower-rate card in Step 6.
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