7
Removing/Replacing a Card
Card removal procedures differ, depending on whether you are removing the APM or
I/O card.
NOTE:
You can insert or remove the APM and its associated I/O card without powering off
the equipment and interrupting data flow through other cards in the network.

Removing/Replacing an APM

1. Remove the housing’s bezel, if applicable. See the installation instructions that
came with your housing for information.
2. Remove the captive screws from the ejector latches on the front of the housing.
3. Press open the ejector latches to disengage the card from the midplane.
4. Supporting the card by its edges, pull straight out until the card clears the housing.
5. Refer to Steps 3–5 of
Installing the APM
on page 6.

If the slot . . . Then the . . .

Was previously unassigned Configuration settings are the factory
defaults and are accessible from SNMP
and the user interface.
Was previously assigned to the same
type of APM Existing configuration settings are used
and are accessible from SNMP and the
user interface.
Previously contained a different type of
APM System generates a Module
Misconfiguration alarm for the given
slot. See the Technical Reference for
procedures in this situation.

Removing/Replacing an I/O Card

1. Remove the APM from the housing (see
Removing/Replacing an APM
).
2. Remove the cables from the I/O card.
3. Using a screwdriver, loosen the upper and lower captive screws fastening the card
to the housing’s frame.
4. Gently pull the I/O card away from the midplane until it clears the housing.
5. Align the replacement card with the upper and lower tracks of the slot. Push gently
towards the midplane until it stops and you cannot push the card any further.