3Com 3C18320 Module-to-Host Connections, Installing on an MSH Module

Figure 2 Removing a key
You may find an alternative type of key used. In that event, place the
keyed lug, letter upmost, into the cut-out in the case and lay the key down
with the slots towards the edge connector of the module. Push gently,
down and towards the front of the unit, to engage the latch.
To change a key, insert the tip of a fine screwdriver or similar into the small
slot of the fitted key and press away from the edge, lifting up carefully.
Module-to-Host
Connections
A 16-pin header and a 16-way edge connector are mounted on the FDDI
MIC Media Module for connection to an MSH LinkSwitch Module or a FMS
II LinkSwitch Hub.
Installing on an
MSH Module
Before you install the FDDI MIC Media Module, you must remove the MSH
Module from the network and all power sources. See the relevant MSH
Module User Guide.
1Remove the blanking plate from the module which is to receive the FDDI
MIC Media Module. The relevant manual will tell y ou where to find the
plate.
2Keep the blanking plate in a safe place so that it can be replaced if the
FDDI MIC Media Module is removed.
3Place the MSH module on a flat surface with the 16-way socket facing up.
4Hold the FDDI MIC Media Module by the mounti ng panel and board edge
with the header pins facing down. Pass the board of the FDDI MIC Media
Module through the cut-out in the front panel.
5Align the socket on the card with the pins on the FDDI MIC Media Module
and push down firmly to connect.
6Fix the mounting panel of the FDDI MIC Media M odule to the module
panel using the two screws from the blanking plate.
7Re-install the MSH module into its chassis.