Figure 3-45 4-Amp Power Supply Unit - Inter-Tel AXXESS Manual

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Installation

Figure 3-45.

4-Amp Power Supply Unit

ON/OFF SWITCH

Grounding Requirements

AC power source. (See

points include the building's frame, a ground rod (driven a minimum of 8 ft), and a copper (not

PVC) cold water pipe.

grounded AC power source. (See

net and Krone field should also be hardwire earthed to the building earth.

9.10 In addition, all optional Single-Line Adapters, trunk gas discharge tubes, and UPS/SPS

battery compartments that are used must be properly grounded to the chassis AC outlet. Inter-

Tel's CommSource division or Inter-Tel Europe sells a surge/spike protector that has a built-in

ground lug just for this purpose.

9.11 The grounding wire should be 10AWG (10 gauge thickness or larger -- smaller number

gauge = larger thickness) or larger and should not exceed 25 feet (7.5 meters) to help provide

RFI/EMI protection, or it should not exceed 10 feet (3 meters) to help provide both RFI/EMI

and lightning protection.

MANUAL VERSION 11.0 – May 2008

With a U.S. system, the equipment chassis must be plugged into a properly grounded

With a European system, the equipment chassis must be plugged into a properly

LED INDICATORS

VOLTAGE TEST POINTS

AC POWER PLUG

for additional AC power requirements.) Some good ground

for additional AC power requirements.) The cabi-

4-Amp Power Supply Unit

Chapters

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