MGC Hardware and Installation Manual

5.Unscrew the four screws on the Fans front panel that secure the faulty fan to the fan panel.

6.Remove the fan.

7.Position the replacement fan correctly on the rear panel.

8.Tighten the four screws on the Fans front panel that secure the fan.

9.Insert the connector to its place in the Fans panel and ensure that the panel mount locks are locked.

10.Connect the two connectors of the power supply cable.

11.Reposition the fans cover panel on the rear panel and tighten the six screws to secure the fan cover to its place.

12.Connect the AC power cable to the MCU and turn on the MCU. Check the fan is working correctly.

Replacing the Main Control Module

The Main Control Module is not hot swappable. Use the following procedure for both the MGC-100 and the MGC-50 to replace the Main Control Module:

1.Exit the MGC Manager application, as described in the MGC Manager User’s Guide.

2.Switch off the main power switch on the rear panel and disconnect the power cord from the power source.

3.Open the cover of the Main Control Module on the rear panel of the MGC.

4.Disconnect all internal cables to the Main Control Module.

5.Unscrew the four screws on the front panel of the MGC that secure the Main Control Module.

6.Use the plastic ejectors to pull the Main Control Module out of its slot in the Backplane.

7.Carefully slide the Main Control Module out through the front panel.

8.Slide in the replacement Main Control Module.

9.Push the Main Control Module firmly into the Backplane making sure it is properly seated in its slot.

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Polycom DOC2237A manual Replacing the Main Control Module