C-7
Appendix C
Installing Modules into Back Boxes
Overview This section contains guidelines and instructions for mounting the RUI and RIC II modules
into 4100 back boxes.
• The RUI motherboard mounts into the CPU bay or, if necessary, an expansion bay.
• The RIC II mounts into expansion bays only.
Guidelines Review the following guidelines before installing a motherboard into a cabinet.
• If a power supply is installed in the bay, it must be installed on the far right of the bay and
any relay modules must be installed in the slots immediately to its left.
• Relay cards must be installed in the rightmost possible slots. This is necessary to allow for
the proper routing of non-power limited wiring (typically 120 VAC wiring), which could
be connected to a relay module.
Installing the RUI
Motherboard
Mount the RUI motherboard (562-799 or 562-856) in a master controller bay as described
below.
1. Orient the motherboard with the connector labeled J1 on the right and the header labeled P1
on the left.
2. Match the connector on the previously installed motherboard with the pins on the mother-
board you are installing. Slide the motherboard to the left until the pins are completely
inserted in the connector of the previously installed motherboard. If you are installing the
leftmost board, the pins will remain unconnected.
3. Secure the motherboard to the chassis with four torx screws.
Figure C-4. Installing the RUI Motherboard in the CPU Bay
Note: RUI motherboards may also be installed in expansion bays.
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