Mitel 3300 ICP Technician's Handbook page 117

3300 ICP Technician's Handbook – Release 3.2
faceplate.
- Plug the PDU internal power cord into the power converter.
- Replace the internal power access cover plate.
- Plug the external power cord into the PDU.
5. Power up the node.
6. Replace the front panels.
Install a Cooling Fan
To replace a cooling fan in a Peripheral Unit:
1. Power down the unit.
2. Remove the front panels.
3. Disconnect the fan assembly.
4. Remove the defective fan.
5. Insert the new fan.
6. Replace the fan assembly.
7. Replace the front panels and power up the unit.
Install an Electronic Filter for Cooling Fan
To replace an electronic filter for a cooling fan in a peripheral
cabinet:
1. Power down the unit.
2. Remove the front panels.
3. Remove the cards from the left side of the cabinet.
4. Identify and disconnect the plugs from the filter that is attached
to the underside of the top of the cabinet.
5. Remove the screws holding the filter to the cabinet, and remove
the filter from the cabinet.
6. Unpack, inspect, and install the filter by reversing the previous
steps.
7. Replace the cards.
8. Replace the front panels.
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