Mj-X Control Panel Rear Cover Figure 5-2 Communications Module Installation In Mj-X; Figure 5-3 Membrane Switch Cable Routing (Top Down View) - Siemens MJ-4 Series Installation Manual

4. Feed the PDS cable harness through the strain relief cutout while removing the rear cover.
5. Remove the accessory cover plate from the rear cover. Discard the accessory cover plate and mounting
hardware. If an Expansion Rack is installed in the accessory area, remove the rack and discard.
6. Mount the communications module printed circuit board to the MJ-X base with six 6-32 x 7/16" standoffs,
Figure 5-2. Ensure that the membrane switch cable is folded over itself and under the communications module
printed circuit board as shown in Figure 5-3.
Figure 5-2 Communications Module Installation in MJ-X.

Figure 5-3 Membrane Switch Cable Routing (top down view).

MJ-X Control Panel
Communications
Module
MJ-4 Communications Module
6-32 x 3/8" Screw (
6-32 x 3/8" Screw (
Hexnuts (5)
Cover Pan
Cover Pan
Cover Pan
6-32 x 7/16" Mal Spacers(5)
6-32 x 7/16" Male/F
Standoff (6)
Standoff (6)
PCB
PCB
PCB
Threaded Studs(5)
MJ-X Base
MJ-X Base
MJ-X Base
Processor Board
Membrane Switch Cable
e/Fem
9