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Installation and Startup
2.3
Installing Interface Submodules
The EXM 478 expansion module has three card slots to accept interface
submodules. The FM 456-2 application function module has two card slots.
Warning
!
The modules can become damaged.
If the interface module is inserted or removed with the power on, the FM 456-2,
the expansion module or the interface submodule may be damaged.
Never insert or remove the interface submodule with the power on. Always switch
off the power supply (PS) before inserting or removing interface submodules.
Observe the ESD rules when installing an interface submodule.
Installing Interface Submodules
Proceed as follows to install an interface submodule in a card slot:
1. Hold the interface submodule on the long sides of the front plate.
2. Insert the PCB end of the interface submodule in the upper and lower guides of
the card slot as shown in Figure 2-1.
3. Slowly push the interface submodule into the slot until the connector on the
interface submodule latches into the slot and the front plate lies flush against
the edge of the slot.
4. Secure the front plate with the two fitted, captive M2.5 x 10 slot-headed screws
on the left frame of the card slot.
Warning
!
The interface submodules and the connected equipment can become damaged.
The interface submodules and the equipment connected to them may be
destroyed if the submodules are connected to the wrong front plugs.
Label the front plugs so that the associated interface submodule can be clearly
identified.
2-4
FM 456-2 Application Function Module Installation, Hardware, and Startup
C79000-G7076-C458-01
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