Cisco ONS 15454 SDH Specifications Page 222

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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 4 Maintenance
Span Upgrade
Step 3 Apply a forced switch on the ports that you will upgrade.
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose FORCE RING from the menu.
c. Click Apply.
Step 4 Remove the fiber from both ends and ensure that traffic is still running.
Step 5 Pull the STM-N cards from both nodes.
Step 6 In node view of the software, right-click each STM-N card slot and choose Change Card.
Step 7 In the Change Card dialog box, choose the new STM-N card type.
Step 8 Click OK.
Step 9 Insert the new STM-N cards in both nodes.
Step 10 Install the fiber in both nodes.
Step 11 Wait for the IMPROPRMVL alarm to clear and for the cards to become active.
Step 12 If cards on each side of the line have been successfully upgraded, remove the forced switch:
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose CLEAR from the menu.
c. Click Apply.
Step 13 Repeat these steps for each line in the MS-SPRing.
Procedure: Manually Upgrade a Span on a Four-Fiber MS-SPRing
When upgrading a four-fiber MS-SPRing, you can upgrade both working and protect lines with a single
force switch.
Note All lines in an MS-SPRing must be upgraded before added bandwidth will be available.
Step 1 In the node view of the CTC software, click the Conditions tab.
Step 2 Click Retrieve Conditions. Ensure no alarms or abnormal conditions are present on the span to be
upgraded.
Step 3 Apply a forced switch on the ports that you will upgrade:
a. In node view, click the Maintenance > Ring tabs.
b. Click either the West Switch or the East Switch field and choose FORCE RING from the menu.
c. Click Apply.
Purpose Manually upgrading a span on a four-fiber MS-SPRing
Tools/Equipment
Prerequisite procedures
Required/As Needed As needed
On Site/Remote On Site
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