Installing The Communications Module In Mj-X; Lcontrol Panels; Removing The Mj-X L Rear Cover; Figure 1-1 Mj-X - Siemens MJ-XL Installation Manual

• The 2179 Protocol ( Based on the PG&E Protocol)
• Other (contact the factory for the latest list of supported protocols)

4 Installing the Communications Module in MJ-X

L
The MJ-X Communications Modules are mounted directly on the MJ-X
steps to install the communications module. Details are provided in the sections below.
1. Turn off power to the MJ-X
L
2. Remove the MJ-X rear cover.
3. Install the communications module.
4. Set the communications module jumpers.
L
5. Remount the MJ-X rear cover.
6. Install the communications module label.
4.1 Removing the MJ-X
Turn off the power to the MJ-X
below. Uncurl the cable clamp at the center of the rear cover and slide the cable out.
L
L
Rear Cover
L
and remove the four screws holding the rear cover to the case, see Figure 4-1
Figure 4-1 MJ-X
MJ-X
L
Control Panels
L
Main Processor Board. Follow these
Remove 4
Case
Screws
Uncurl cable-clamp
and slide cable out
L
Rear Cover
L
Communications Module
5