AT&T 518-600-016 manual Voice Terminal Power Supply Unit

Voice Terminal Power Supply Unit

Voice terminal operation is guaranteed for a wiring run of up 1000 feet from the control unit. For a wiring run that is more than l000 feet from the control unit, you may have to supply extra power to the voice terminal.

If the power to one voice terminal is low, it is probably more cost effective to use a Voice Terminal Power Supply Unit than an Auxiliary Power Unit. However, if there is a power demand of over 45 unit loads on one Power Supply Module, an Auxiliary Power Unit is generally required. See “Auxiliary Power Units” on page 2-122.

2-130 Adding Accessories