Polycom DOC2237A - Manual (Page 159)

MGC Hardware and Installation Manual
5-15
12. Connect the black power cable to the -5V screw in the order described in
step 11 and ensure that the nut is well fastened and secured.
13. Reconnect the AC input (J1) and the 12V/5V Sense connectors (J2).
14. Reposition the fans cover panel on the rear panel. Ensure that the two fan
connectors are in their place and tighten the six screws to secure the fan
cover to its place.
15. Connect the AC power cable to the MCU and turn on the MCU.
The green Power Supply Module LED should be green to indicate that
the MCU power is on.
Fan Replacement for the MGC-100
The fans are hot swappable and can be replaced with the system running. The
fans are located on the rear panel of the MGC-100. Use the following
procedure to replace a faulty fan:
1. Disconnect the cable to the fan.
2. Unscrew the four screws on the rear panel of the MGC-100 that secure
the fan.
3. Remove the fan.
4. Position the replacement fan correctly on the rear panel.
5. Tighten the four screws on the rear panel of the MGC-100 that secure the
fan.
6. Connect the cable to the fan.