Nortel Networks AN/DC manual To connect the ANH-8/DC to the power source

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

Connecting to the DC Power Source

Danger: Due to high-energy hazards, only qualified service personnel are permitted to connect the ANH-8/DC to the power source. Ensure that the connection is to an isolated -48 V or -60 V source (reinforced insulation from the main [AC] power).

To connect the ANH-8/DC to the power source:

1.Ensure that the power switch is in the OFF (0) position (Figure 2-19).

2.Using a flathead screwdriver, loosen, but do not remove, the screws on the terminal blocks marked -VDC and RTN (Figure 2-19).

-48VDC

-60VDC

1.5A

RTN -VDC

AN0090A

Figure 2-19. ANH-8/DC Power Switch and DC Terminals

3.Strip 3/8 in. (10 mm) of insulation from the end of a #16 or #18 AWG cable.

Note: Although #18 AWG cable is adequate, we recommend #16 AWG cable to ensure minimal voltage drop from the power source.

4.Insert the stripped end of the cable into the -VDC terminal block, the minus lead (Figure 2-20).

5.Tighten the screw beneath the -VDC terminal block to establish the electrical connection.

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