Polycom DOC2559A User Manual

Chapter 2- Component Replacement

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).

Unscrew the captive screws on the front panel of the 

CNTL

 4000 

Module that secure the 

m

odule to the chassis.

Use the metal ejector lever to pull the 

CNTL

 4000 Module out of its 

slot in the Backplane.

Carefully slide the 

CNTL

 4000 Module out through the front panel.

On the 

CNTL

 4000 Module to be installed, move the ejector lever to 

the fully open position.

Slide in the replacement 

CNTL

 4000 Module.

Push the 

CNTL

 4000 Module firmly into the Backplane, making sure 

it is properly seated in its slot.

Ensure that the metal ejector lever is fully retracted into it’s housing.

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.