Cisco AS5400XM Installing Manual - Page 12

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Supplying Power

Strip a minimum 1/4 in. (0.625 cm) off the wire insulation to connect the stranded wires to the alarm

Step 2

connector. The maximum insulation strip length is 0.31 in. (0.78 cm).

Step 3

Secure the wires to the alarm connector with screws.

The maximum tightening torque on the screws is 7 in.-lb (0.79 N-m).

Caution

Connect the wires to strain relief clamps that are inserted into the holes in the ventilation grid.

Step 4

Note

Supplying Power

The power system consists of a fully redundant switching power supply with two AC (or DC) inputs to

the main power modules. See the

power system.

Check the power at your site to ensure that you are receiving "clean" power (free of spikes and noise).

Install a power conditioner if necessary.

The Cisco AS5400XM universal gateway AC power supply includes the following features:

•

In a DC power supply installation, do not connect the 48 VDC Return to chassis ground at the

Caution

Cisco AS5400XM universal gateway. A single-point ground is recommended at the power distribution

rack.

The grounding architecture for the Cisco AS5400XM universal gateway is isolated DC return (DC-I).

Note

Do not touch the power supply when the power cord is connected. For systems with a power switch,

Warning

line voltages are present within the power supply even when the power switch is off and the power

cord is connected. For systems without a power switch, line voltages are present within the power

supply when the power cord is connected. Statement 4

This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that

Warning

a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the

phase conductors (all current-carrying conductors). Statement 13

Cisco AS5400XM Universal Gateway Chassis Installation Guide

3-12

See

Appendix C, "Cabling Specifications,"

The full range of operation is 100 to 240 VAC.

All units include two 6-foot (1.8-meter) electrical power cords. (A label near the power inlets

indicates the correct voltage, frequency, current draw, and power dissipation for the unit.)

Chapter 3

for alarm port cable assembly and port pinouts.

"Power Supply" section on page 1-3

Installing the Cisco AS5400XM Universal Gateway

for more information about the

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