GAI-Tronics 263 매뉴얼 - 페이지 2

{카테고리_이름} GAI-Tronics 263에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. GAI-Tronics 263 15 페이지. Isolation barrier unit

Model 263 Isolation Barrier Unit (IBU)

Installation

When installing any GAI-Tronics telephone equipment, please adhere to the following guidelines to

ensure the safety of all personnel:

•

NEVER install telephone wiring during a lightning storm.

•

Install a UL Listed lightning arrestor on any phone installed where the phone or phone cable is at

risk of being exposed to lightning strikes. The lightning arrestor must be installed as close to the

phone as possible to maximize the protection. The lightning arrestor must not be installed within the

enclosure supplied with the phone.

•

NEVER install telephone jacks in wet locations unless the jack is specifically designed for wet

locations.

•

NEVER touch uninsulated telephone wires or terminals unless the telephone line has been

disconnected at the network interface.

•

USE CAUTION when installing or modifying telephone lines.

•

Install UL Listed telephone line suppressor (customer-supplied) on the telephone line.

•

Use silicone sealant or equivalent around and inside all conduit entries

Installation of the IBU

The Model 263 Isolation Barrier Unit provides an intrinsically-safe circuit when connected in accordance

with GAI-Tronics Pub. 42004-380, Control Drawing 73242. It must be installed in a non-hazardous

location. See Figure 1 for a typical installation.

The Model 263 Isolation Barrier Unit interior includes a power switch selector, a ring pitch adjustment,

and four troubleshooting LEDs. The IBU housing is composed of two modular subassemblies, the front

panel and the rear enclosure assembly, for easy installation and wiring.

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03/06

Figure 1. Typical intrinsically-safe installation

Pub. 42004-178D

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