Installation and Startup
2-8
FM 456-2 Application Function Module Installation, Hardware, and Startup
C79000-G7076-C458-01
2.5
Fitting Expansion Modules to an FM 456-2
Before installing your M7-400 in the module rack, you must pre-assemble the
FM 456-2 application function module with all necessary expansion modules.
This section provides information that you will need to pre-assemble expansion
modules, such as an EXM 478 expansion module, an ATM 478 AT adapter module
and an MSM 478 mass storage module, to an application function module to form
a module assembly.
Assembly Sequence
Carry out assembly in the following sequence:
1. Remove the covers over the plugs and sockets on the modules.
2. Remove the connecting clips that are fitted at the top and bottom of the module.
3. Remove the module covers.
4. Position the modules on a level surface and interconnect them.
5. Clip the modules together with connecting clips at the top and bottom.
The individual steps for fitting expansion modules are illustrated on the following
pages.