Nortel Networks Connecting to the DC Power Source, 11. AN/DC Power Switch and DC Terminals

Installing and Operating AN/DC and ANH-8/DC Systems

4.Insert the 25-pin plug at the other end of the modem cable into the modem’s RS-232 data communications port .

The modem is now connected to the AN/DC.

Next, connect the power source as described in the following section.

Connecting to the DC Power Source

Danger: Due to high-energy hazards, only qualified service personnel are permitted to connect the AN/DC to the power source.

To connect the AN/DC to the power source:

1.Ensure that the power switch is in the OFF (0) position (Figure 1-11).

2.Using a flathead screwdriver, loosen, but do not remove, the screws beneath the terminal blocks marked -VDC and RTN (Figure 1-11).

UL

UL

DC Power Terminals (3)

-48VDC

-60VDC

1.5A

COM 1

RTN -VDC

Power Switch OFF (0)

AN0093A

Figure 1-11. AN/DC Power Switch and DC Terminals

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