Pub. 42004-383D
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374
800-492-1212
Fax: 610-796-5954
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G A I - T R O N I C S ® C O R P O R A T I O N
A H U B B E L L C O M P A N Y
Model DHS/DHF Series
Digital Intercom Stations
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics. GAI-
Tronics retains all intellectual property and other rights in or to the information contained herein, and
such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
General Information
Product Overview
The GAI-Tronics DHS/DHF Series Digital Intercom
Stations are designed for use in hazardous and non-
hazardous area communications, both indoors and
outdoors, and in high noise areas.
The DHS/DHF Series Intercom Stations are ideal for
both large and small intercom systems. Communication
and security systems can be networked to include up to
120 intercom servers with the capability to support a
corresponding maximum of 5,760 stations. The
systems can be upgraded to include alarms, radio
interface, telephone interface, music, etc. All
communication to the stations is via a two-wire digital
communication line.
These intercom stations provide all-call, group call,
hands-free, handset and headset communication,
input/output controls, and a variety of other functions.
These stations also contain integrated functions such as
door and gate control, and video integration, and control
desk functions, etc.
System Requirements and Limitations
As a minimum, the DHS/DHF Series Stations require a central cabinet to supply power for operation with
its basic functions. A local 24 V ac or dc power source is required for full functionality (external speaker,
audio line driver and headset operation). Remote amplifiers can be installed with these stations to
broadcast additional audio.
Figure 1. Digital Intercom Station