Specifications

10-16
Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Chapter 10 Switch Maintenance Procedures
Replacing Cards
Figure 10-3 Both SFP-8-155 Back Cards with SC Conversion Cables
If the upgraded SFP-8-155 back cards connect to CPE that is already using LC cables, you still need to
use SC conversion cables. Without the SC conversion cables, you can not do a graceful upgrade and
traffic will be interrupted. This is because the CPE at the other end of the original SC connection has an
LC to SC conversion cable. If you want to upgrade to a straight LC cable, you will have to disconnect
the original SC conversion cable, and this will interrupt traffic.
Replacing PXM45/A or PXM45/B Cards with PXM45/C Cards
PXM45/A and PXM45/B front cards can be replaced with PXM45/C cards while the switch is operating.
If a PXM45 is operating in standalone mode, all calls are interrupted until the PXM45 is replaced and
the PXM45/C card is operating correctly. If the switch is using redundant PXM45s, enter the switchcc
command, if necessary, to ensure that the card you want to replace is operating in standby mode. For
redundant PXM45 cards, you are ready to replace the standby card as soon as the other card becomes
active. You do not need to wait for the standby card to reach standby mode.
Note The PXM45/C card requires a PXM-UI-S3/B back card. The PXM45/C will not run with the PXM-UI-S3
back card.
Note Before replacing PXM45 cards with PXM45/C cards, you need to upgrade all cards on the switch to
Release 4 or later.
Note If you are running CWM on your switch, you must upgrade CWM to Release 12 before replacing PXM45
cards with PXM45/C cards.
SFP-8-155
back card
LC
SC
SFP-8-155
back card
LC
SC
SC cable
SC conversion
cable
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