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 system.
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.
When replacing an APM, be aware of the following:
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 appropriate document
for procedures in this situation.
Removing/Replacing an I/O Card
1. Remove the APM from the housing (see
Removing/Replacing an APM
on
page 7).
2. Remove the DTE cables from the I/O card.
3. Using a small flat-blade 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.
6. Alternately tighten each captive screw until both are snug.
7. Reattach the cables as appropriate.
