Grounding Requirements - AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual

Introduction
CAUTION:
Power and Grounding
Proper power and grounding are essential for correct and safe functioning of
the system.
Power Specifications
The system control unit plugs into a 117-VAC outlet. To avoid accidental
disconnection of the system, this outlet should not be controlled by a wall
switch.
Each carrier unit requires its own power supply. Each power supply requires a
maximum current of 3 amps. Therefore, if expansion carrier units are added to
the system, extra AC outlets maybe needed.

Grounding Requirements

Proper grounding of the installation site protects the system against the
following:
Lightning
Power surges
Power crosses on outside lines/trunks
Electrostatic discharge (ESD)
Do not use switch control on AC outlet for control unit.
Use approved ground (AC receptacle for 3-prong plug).
Do not install control unit outdoors.
Do not place control unit near extreme heat (furnaces, heaters,
attics, or direct sunlight).
Do not expose control unit to devices that generate electrical
interference (such as arc welders or motors).
Do not place anything on top of carriers.
Do not install control unit under any device that may drip fluid,
such as an air conditioner.
Each auxiliary power unit requires one outlet.
Do not expose the control unit to moisture, corrosive gases,
dust, chemicals, spray paint, or similar materials.
System Capacities and Requirements
1-39