AT&T 3.0 manual Connecting the Control Unit to An AC Outlet

Connecting the Control Unit to an AC Outlet

Connecting the Control Unit to

an AC Outlet

CAUTION:

Make sure the AC outlet has been tested for proper grounding. The outlet should be 117-V AC, 60-Hz, 3-wire (phase, neutral, ground). See “AC Outlet Tests,” earlier in this chapter, for instructions.

To prevent someone from accidentally shutting off the power, do not connect the control unit to a switch-controlled outlet. The AC outlet should be within 5 ft. (152 cm) of the control unit.

To connect the control unit to a dedicated AC outlet, follow the steps below.

1Turn the basic carrier’s power supply switch to the OFF position.

2Turn off the power supply switches on the expansion carriers.

3Unplug the power cords from any auxiliary power units.

4Plug one end of the power cord into the AC INPUT connector just below the power switch on the front of the basic carrier’s power supply.

5Plug the other end of the power cord into the AC outlet, allowing at least 1 ft. (30.4 cm) of slack in the cord.

6Repeat Steps 4 and 5 for each expansion carrier.

CAUTION:

Do not attach the power cord(s) to any building surfaces.

Installing the Control Unit 2-43