Technical data

Chapter 4: Installation

4.9 Installing AC Power and Batteries

NOTE: Power-limited and non-power limited wiring must be separated. Wire non-power limited wiring (AC

power and battery) to the left of the motherboard. Wire power limited wiring to the right and top of the

motherboard.

WARNING: Two different sources of power should be connected to this unit.

Disconnect both sources of power before servicing. Failure to disconnect both

power sources before servicing could result in serious injury or death to you and/or

others.

CAUTION: Observe correct polarity requirements on all connections. Failure to do so may

damage the equipment.

CAUTION: Always apply AC voltage before applying battery backup voltage. Failure to do so

may cause damage to the SP40S Multi-Function Facility Communication System.

4.9.1 Installing AC Power

1. Refer to Figure 4-13) and connect the line and neutral 120VAC input wiring to the L (Line) and N

(Neutral) terminals on the terminal block TB9 (see Figure 4-1 for location) in the lower left corner of the

chassis.

2. Ensure that the ground input wiring is connected to the ground terminal (TB9) on the left side of the

chassis.

3. Secure the wire with the caps nut located in the hardware package.

AC Field Wiring

(non-power limited)

LINE, GROUND

and NEUTRAL

Thread wire out

knockout on the

left side of the

enclosure.

Grounding

Te r mi n a l

Block

Figure 4-13 120VAC Input Connection

SP40S Multi-Function Facility Communication System Manual, Revision D