Pro-face GP-4402WW, Hardware Manual

Page: 52 / 62

Installation and Wiring
52
Connecting the Power Supply
Precautions
Excessive stress on the power connection or attempting to install this product with the power
cables connected may disconnect or cause damage to the power connections. This can cause
short circuits, fire or unintended equipment operation.
Improving Noise/Surge

This product’s power supply cord should not be bundled with or kept close to main circuit lines
(high voltage, high current), power lines, or input/output lines, and their various systems should
be kept separate. When power lines cannot be wired via a separate system, use shielded cables
for input/output lines.

Make the power cord as short as possible, and be sure to twist the ends of the wires together
(i.e. twisted pair cabling) from close to the power supply unit.

If there is an excess amount of noise on the power supply line, connect a noise reducing
transistor before turning on the power.

Connect a surge protection device to handle power surges.

To increase noise resistance, attach a ferrite core to the power cable.
Power Supply Connections

When supplying power to this product, connect the power as shown below.

You must use DC input with a Class 2 power supply for GP-4402WW/GP-4502WW.
DANGER
SHORT CIRCUIT, FIRE, OR UNINTENDED EQUIPMENT OPERATION
Avoid excessive force on the power cable to prevent accidental disconnection

Securely attach power cables to an installation panel or cabinet.

Use the designated torque to tighten this product’s terminal block screws.

Install and fasten this product on installation panel or cabinet prior to connecting power supply
and communication lines.
Failure to follow these instructions will result in death or serious injury.