Removing a Module

The instructions below should be followed when

removing a module from its slot in a rack.

Grasp the board firmly at the top and bottom of

the board cover with your thumbs on the front of

the cover and your fingers on the plastic clips on

the back of the cover.

Squeeze the rack clips on the back of the cover

with your fingers to disengage the clip from the

rack rail and pull the board firmly to remove it

from the backplane connector.

Slide the board along the card guide and remove

it from the rack.

A lithium battery (IC697ACC701) is installed as shown

in Figure 2.  This battery maintains program and data

memory when power is removed and operates the

calendar clock.  Be sure to install the new battery

before removing the old battery.  If during power-up

diagnostics a low battery is detected, the MODULE

OK LED (top LED) will not stay on.  Specific

indication of a low battery state is detailed in

Reference 2.