User Guide

Chapter 2- Component Replacement
2-4
Replacing the CNTL 4000 Module
The CPU module is the management system of the RMX 4000. Use the
following procedure to replace a CNTL 4000 Module:
1 Ensure that the power switch/circuit switch on the RMX 4000 is
turned OFF (O).
2 Unscrew the captive screws on the front panel of the
CNTL 4000
Module that secure the
module to the chassis.
3 Use the metal ejector lever to pull the
CNTL 4000 Module out of its
slot in the Backplane.
4 Carefully slide the
CNTL 4000 Module out through the front panel.
5 On the
CNTL 4000 Module to be installed, move the ejector lever to
the fully open position.
6 Slide in the replacement
CNTL 4000 Module.
7 Push the
CNTL 4000 Module firmly into the Backplane, making sure
it is properly seated in its slot.
8 Ensure that the metal ejector lever is fully retracted into it’s housing.
9 Tighten the captive screws on the front panel of the
CNTL 4000
Module that secure the
CNTL 4000 Module to the chassis.
10 Turn ON the RMX 4000.
Captive screws