3Com CoreBuilder 9000 ATM Interface Module Quick Start Manual page 22

22 ATM I M
NTERFACE ODULE
Q S G
UICK TART UIDE
Figure 19 Removing the Screws and Washers
3 Hold the OC-12/STM-4 card and gently lift upwards until the connectors
disengage (Figure 20).
Figure 20 Disengaging the Connectors
4 Raise the back of the OC-12/STM-4 daughter card to a 20° angle, and
remove the card from the ATM Interface Carrier Module in a backwards
direction (Figure 20).
5 Replace the protective plate as follows:
a Insert the plate into the ATM Interface Carrier Module from the back,
taking care to cover the cutout completely.
b Replace the three countersink screws that are included with the plate.