3-8
Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter3 Preparing for Installation
Safety Requirements
General Card Installation Guidelines
This section contains recommendations and precautions for:
•Installing and replacing cards and modules
•Hot swapping cards and modules
•Card installation

Card Installation and Replacement Suggestions

The following are examples of recommended installation and replacement practices for cards and
modules.
Caution Any card or module that is only partially connected to the backplane can disrupt systemoperation.
•Do not force the card or module into its slot. This act ion can damage the pins on the backplane if
they are not aligned properly with the card or module.
•Ensure that the card or module is straight and not at an angle when you install it i n the slot. Installing
the card or module at an angle can damage it. Use the guide rails to install the card or
module correctly.
•Fully depress the levers to ensure that the card or module connector mates with the backplane
correctly.
Caution Refer to “How Most Card Levers Work” section on page 6-5 for how to open latches or extractor levers
on cards. Do not force latches open!

Hot Swapping Cards and Modules

Hot swapping allows you to remove and replace cards without disconnecting system power. Cisco MGX
switches support hot swapping of cards and modules.
Note Hot swapping a card interrupts service only when the card set is operating in standalone mode, or when
the card is operating in redundancy mode and the wrong car d is pulled.

Card Installation Guidelines

Before you install a front or back card, be sure to follow these guidelines:
•Inspect the backplane for bent pins or bent dividers between pin rows (see Figure 3-1). If the
backplane has bent pins, do not install a card in that slot. Insta lling a card in a damaged backplane
slot damages the connector on the card.