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Guardian Telecom Inc.
Installation and Operation
SCR Series
Page 3
Overview
SCR Industrial Ringdown/Autodialer Telephone
The SCR 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.
The SCR Telephone may be supplied with an optional Auto Dialer or dialing may be programmed
through a PABX. If an Auto Dialer is ordered with the SCR refer to the manual for the Auto Dialer for
instructions on programming and for compliances.
Features
Enclosure
• 16 Gauge 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.
Receiver Volume Control
• Switch in handset provides 13.5dB of range
Heavy Duty Handset Cord (SCR 11)
• withstands abusive use
Armored Handset Cord (SCR 41)
• vandal resistant
Hearing-Aid Compatibility
• compatible with inductively coupled hearing-aid devices