Guardian Technologies SCR-A User Manual
Page 4

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