DEFINITY Made Easy Tools
Issue 3, December 2001

Install and Connect Single-Carrier Cabinets

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Installing on a wall with a plywood backing plate

1. Hold the unit at the desired locaton and mark the four hole (slots and keyholes) centers with a pencil.

2. Use a level to make sure the power unit is straight, then set the unit aside and install two #12 pan head phillips wood screws (rated for at least 50 lbs each) in the top position.


3. Mount the power distribution unit on the top screws and install the bottom screws through the slots in the power distribution housing.

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DC Power Connections with DC Distribution Unit

A 10 foot (3 meter) power cord is equipped with the appropriate connectors. In the configuration shown in Connections Using DC Power Distribution Unit, each cabinet stack has a DC Power Distribution Unit associated with it.

Stacking DC Power Cabinets

Up to three DC Power Cabinets can be stacked to supply power to Single-Carrier Cabinet stacks. See DC Power Cabinet Stack -- Rear.

Typical DC Power Connections

Figure Notes:

1. System Cabinet Stack


2. DC Power Cabinet


3. White Wires


4. Green Ground Wires and Black Wires Connect to the -48 VDC Return Bus


5. -48 VDC Bus


6. Connect White Wires to Circuit Breakers


7. DC Power Cable (H600-436, G1) to Power Connector on Each Cabinet. Cut to Length and Crimp a Ring Terminal Onto Each Wire


8. 30 Feet (9 m) Maximum


9. Route Cables Through Sliding Door


10. Circuit Breaker


11. Supplied #10-32 Screw, #10 Star Washer, and #10-32 Hex Nut


12. Inset Showing DC Power Connector (Male)

Connections Using DC Power Distribution Unit

Figure Notes:

1. System Cabinet Stack


2. DC Power Cabinet


3. DC Power Distribution Unit (position to right of the cabinet stack


4. White Wire (connect to Circuit Breaker). See inset.


5. Green Ground Wires and Black Wire (connect to the -48 VDC Return Bus)


6. -48 VDC Bus


7. Inset


8. 12 inches (30.5 cm) from floor to DC Power Distribution Unit


9. DC Power Cable to Power Connector on Each Cabinet.


10. DC Power Distribution Unit Power Cord (route to rear of DC Power Cabinet)


11. Route Power Cord Through Sliding Door


12. Circuit Breaker


13. Supplied #10-32 Screw, #10 Star Washer, and #10-32 Hex Nut


14. Inset Showing DC Power Connector (Male)

DC Power Cabinet Stack -- Rear

Figure Notes:

1. DC Power Cabinet Stack


2. DC Power Cables Daisy Chained Between DC Power Cabinets


3. Connect to -48 VDC Bus


4. Connect to -48 VDC Return Bus


5. Inset Applies to -48 VDC and -48 VDC Return Buses in All Three DC Power Cabinets

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Copyright� 2001 Avaya Inc.

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