Polycom DOC2237A manual Replacing the Fuse

MGC Hardware and Installation Manual

8.Referring to the labels, reconnect the external connections to the I/O card.

Replacing the Fuse

Use the following procedure for replacing the fuse in the MGC-50:

This procedure is also relevant for earlier versions of the MGC-100. Current

MGC-100 units are provided with a circuit breaker instead of a fuse.

1.If the MCU is working, exit the MGC Manager application and turn off the MCU. Otherwise, skip this step.

2.Switch off the power in the MGC unit.

3.Disconnect the power cord.

4.Release the latch of the fuse holder and slide the fuse holder out of the MGC unit.

5.Pull the fuse out of the fuse holder.

6.Insert the new fuse into the fuse holder. Use a fuse that meets the specifications as defined in see Chapter 4, “Fuse/Circuit Breaker (AC Power)” on page 4-22.

7.Slide the fuse holder into the MGC unit and push it in firmly to engage its latch.

8.Connect the power cord.

9.Switch on the power.

Replacing the Power Supply Modules for the MGC-100 (including the NEBS Unit)

The Power Supply Modules are hot swappable and can be replaced with the system running. Use the following procedure to replace a faulty Power Supply Module:

1.Unscrew the 4 screws on the front panel of the MGC-100 that secure the Power Supply Module.

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