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Cisco ONS 15454 Procedure Guide, R5.0
October 2005
Chapter 22 DLPs A500 to A599
DLP-A553 Upgrade Low-Density Electrical Cards in a 1:N Configuration to High-Density Electrical Cards
• The protect card must not protect any low-density electrical cards in Slots 4, 5, or 6 if on the A side
of the shelf (Slots 12, 13, or 14 if on the B side).
• For 1:N protection groups where N = 2: On the A side, the protect card cannot be upgraded if any
electrical cards are installed or preprovisioned in Slots 4, 5, or 6 (or Slots 12, 13, or 14 on the B side).
• For 1:N protection groups where with N = 1: On the A side, if the protect card is installed in Slot 3
and it protects a low-density card in Slot 1, the protect card cannot be upgraded if Slot 5 or 6 has an
electrical card installed or preprovisioned. For the B side, if the protect card is installed in Slot 15
and it protects a low-density card in Slot 17, the protect card cannot be upgraded if Slot 12 or 13 has
an electrical card installed or preprovisioned.
• For 1:N protection groups where N = 1: On the A side, if the protect card is installed in Slot 3 and
it protects a low-density card in Slot 2, the protect card cannot be upgraded if an electrical card is
installed or preprovisioned in Slot 4. On the B side, if the protect card is installed in Slot 15 and it
protects a low-density card in Slot 16, the protect card cannot be upgraded if an electrical card is
installed or preprovisioned in Slot 14.
The following limitations apply to upgrading a working card after you have upgraded the protect card:
• A working card in Slot 1 on the A side (Slot 17 if on the B side) cannot be upgraded if an electrical
card is installed or preprovisioned in Slot 5 or 6 (Slot 12 or 13 on the B side).
• A working card in Slot 2 on the A side (Slot 16 if on the B side) cannot be upgraded if an electrical
card is installed or preprovisioned in Slot 4 (Slot 14 on the B side).
Step 2 In node view, double-click the current protect card. The card view appears.
Slot 3 contains the protect card if you are working on the A side of the shelf, and Slot 15 contains the
protect card if you are working on the B side of the shelf.
Step 3 Make sure the current protect card is not active:
a. In card view, click the Maintenance > Protection tabs.
b. Select the protection group where the protect card resides.
Step 4 If the card status is Protect/Active, perform a switch so that the protect card becomes standby:
a. Click on the card in the protection group list to highlight it.
b. Click Switch.
c. Click Yes in the confirmation dialog box.
Step 5 Physically remove the card:
a. Open the card ejectors.
b. Slide the card out of the slot. This raises the IMPROPRMVL alarm, which will clear when the upgrade
is complete.
Step 6 In node view, right-click the protect slot (Slot 3 or Slot 15) and change the low-density card to the
high-density card:
a. Choose Change Card from the drop-down list.
b. Choose the new card type (DS3/EC1-48) from the Change to drop-down list.
c. Click OK.
Step 7 Physically insert the new DS3/EC1-48 card into the protect slot:
a. Open the ejectors on the card.
b. Slide the card into the slot along the guide rails.
c. Close the ejectors.