12-11
Cisco ONS 15454 Procedure Guide, R5.0
January 2005
Chapter 12 Upgrade Cards and Spans
NTP-A254 Downgrade a DS3-12E/DS3NE Card to a DS3-12/DS3N-12 Card
Tip The procedure for downgrading is the same as upgrading except you choose DS3-12 or DS3N-12 from
the Change Card drop-down list.
Step 1 Complete the “DLP-A60 Log into CTC” task on page 17-66. If you are already logged in, continue with
Step 2.
Step 2 According to local site practice, complete the “NTP-A108 Back Up the Database” procedure on
page 15-4.
Step 3 Determine if the card you are downgrading is protected or unprotected:
a. A protected card will be listed in the Protection Groups area on the Maintenance > Protection tabs.
The slot, port, and status (that is, Protect/Standby, Working/Active) of each card will be listed under
Selected Group.
b. An unprotected card will not be listed under Protection Groups/Selected Group in the
Maintenance > Protection tabs.
Caution Traffic will be lost during an upgrade on an unprotected card.
Step 4 If the card you are upgrading is unprotected, skip this step and go to Step 5 and ignore references to the
protect card and protect slot. If the card you are upgrading is protected, make sure the protect card is not
active. If the card status is Protect/Active, perform a switch so that the working card becomes active:
a. Double-click the protection group.
b. Click the Protect/Active card.
c. Click Switch and Yes in the Confirmation dialog box.
Step 5 Physically remove the working DS3-12E card or the working DS3N-12E card:
a. Open the DS3-12E or DS3N-12E card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm, which will clear when the
downgrade is complete.
Step 6 Right-click the slot to be downgraded and choose Change Card from the drop-down list.
Step 7 Choose DS3-12 or DS3N-12 from the Change to: drop-down list.
Step 8 Click OK.
Step 9 Insert the DS3-12 or DS3N-12 card into the working slot:
a. Open the ejectors on the DS3-12 or DS3N-12 card.
b. Slide the DS3-12 or DS3N-12 card into the slot along the guide rails.
Step 10 Close the ejectors. Wait for the IMPROPRMVL alarm to clear and the card to become active.
Step 11 If you switched traffic in Step 4, clear the switch:
a. In the Maintenance > Protection tabs, double-click the protection group that contains the reporting
card.
b. Click the selected group.
c. Click Clear and click Yes in the confirmation dialog box.
Step 12 Repeat Steps 3 through 11 to downgrade the protect card if applicable.
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