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Guardian Technologies SCR-A User Manual

Page 4

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Guardian Telecom Inc.

Installation and Operation

SCR-A Series

Page 4

Overview

SCR-A Industrial Ringdown/Autodialer Telephone

The SCR-A is a rugged industrial telephone designed to provide safe, reliable, point to point
communication in harsh environments such as refineries, mills, plants, warehouses or areas with
high humidity.



Features

Enclosure
• 16 AWG steel, zinc dichromate plated and powder coated

Epoxy Resin Coating
• Encapsulates all parts on main circuit board

• Resistant to corrosive agents (eg. H

2

S, SO

2

, and NH

3

), and high

humidity

Magnetic Reed Hook Switch
• No moving parts

Surge Arrestor
• Protects the user in the event of a high voltage spike on the telephone

line

Fuse
• Prevents damage to the electronic circuits in the event of a high

voltage spike on the telephone line

Noise Reducing Microphone
• Allows a high level of intelligibility in locations with high background

noise.

Heavy Duty Handset Cord (SCR-11-A)
• Withstands

abusive

use

Armored Handset Cord (SCR-41-A)
• Vandal

resistant

Hearing-Aid Compatibility
• Compatible with inductively coupled hearing-aid devices