GAI-Tronics DHS-201 User Manual
Pub. 42004-453C
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model DHS/DHF 200 Series
Digital Intercom St ations
T ABLE OF C ONTENTS
Confidentiality Notice .....................................................................................................................1
General Information .......................................................................................................................1
Product Overview ................................................................................................................................... 1
System Requirements and Limitations ................................................................................................. 1
Features and Functions .......................................................................................................................... 2
Model Chart ............................................................................................................................................ 2
Available Models ..................................................................................................................................... 3
Wall-Mount Handset Intercoms (Indoor/Outdoor) ............................................................................................... 3
Wall-Mount Hands-free Intercoms (Indoor/Outdoor) ........................................................................................... 3
Flush-Mount Hands-free Intercoms ...................................................................................................................... 3
Description of Major Components ........................................................................................................ 4
Installation ......................................................................................................................................5
General Information ............................................................................................................................... 5
General Installation Guidelin es ............................................................................................................. 5
Security Hardware .................................................................................................................................. 5
Conduit Installation Details ................................................................................................................... 6
Mounting .................................................................................................................................................. 7
Models DHS-201, DHF-201, and DHF-202 ......................................................................................................... 7
Models DHF-203 and DHF-204 ........................................................................................................................... 8
Field Wire Installation .......................................................................................................................... 10
Power .................................................................................................................................................................. 10
System ................................................................................................................................................................. 12
Audio .................................................................................................................................................................. 12
Audio Level Adjustments ................................................................................................................................... 13
Switch Configuration .......................................................................................................................................... 16
Inputs .................................................................................................................................................................. 17
Outputs ................................................................................................................................................................ 17
Operation .......................................................................................................................................19
Hands-free Operation ........................................................................................................................... 19
Handset Operation ................................................................................................................................ 19
Headset Operation ................................................................................................................................ 20
Paging ..................................................................................................................................................... 20
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Table of Contents Pub. 42004-453C
MODEL DHS/DHF 200 SERIES DIGITAL INTERCOM STATIONS
Alarms and Music ................................................................................................................................. 20
Status Indication ................................................................................................................................... 21
Call Status ........................................................................................................................................................... 21
Controls .................................................................................................................................................. 21
Keypad ................................................................................................................................................................ 21
Single Button Dialing ......................................................................................................................................... 21
Talk/Listen Control ............................................................................................................................................. 21
Call Cancel .......................................................................................................................................................... 21
Master Volume ................................................................................................................................................... 21
Maintenance ..................................................................................................................................22
General Information ............................................................................................................................. 22
Troubleshooting .................................................................................................................................... 22
Service ................................................................................................................................................................ 23
Replacement Parts ................................................................................................................................ 23
Specifications ................................................................................................................................24
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
ii
Pub. 42004-453C
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model DHS/DHF 200 Series
Digital Intercom St ations
Confidential ity 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. GAITronics 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 200 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 200 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 control desk functions.
Figure 1. Digital Intercom Station
System Requirements and Limitations
As a minimum, the DHS/DHF 200 Series Stations require a system central to supply power for operation
for 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. Refer to Pub. 42004-452, “Model DSA-201 Remote Speaker Amplifier.”
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Pub. 42004-453C
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Features and Functions
Central power (limited functionality) or
local power operation (full functionality)
Two-wire digital communication
24 V ac or dc power
Footswitch input
12-watt, Class D speaker amplifier
0 dBm, 600-ohm audio line driver
Volume control
16-button keypad
Optional talk/listen control
Configurable buttons
Call status indicator
Noise-canceling handsets
Hands-free operation
Two configurable inputs
Model Chart
Direct dial, auto-dial, group call, and all-call
capability
Suitable for high noise areas
Optional footswitch
Optional headset
Optional noise-canceling gooseneck microphone
Protection against feedback
Simplex, switched duplex, and full-duplex capable
Call transfer
Conference calling
Two configurable outputs
Suitable for Div. 2 Hazardous Areas (selected models)
UL Listed
CE Mark
Feature
Model
DHS-201
DHS201HS
DHF-201
DHF201HS
DHF201GN
DHF201HSGN
DHF-202
DHF-
202HS
DHF
202GN
DHF-
202HSGN
DHF-203
DHF-204
Surface
Mount
Flush
Mount
UL
Div. 2
Hand-
set
Hands-
free
Single
Button
Dual
Button
Full
Keypad
Goose-
neck
Mic
Head-
set
Jack
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ODEL DHS/DHF 200 SERIES DIGITAL INTERCOM STATIONS Page 3 of 25
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Available Models
Wall-Mount Handset Intercoms (Indoor/Outdoor)
The Model DHS-201 Wall-mou n t Hand se t Inter com has a built-in speaker amplifier and external audio
output with an optional headset jack.
Wall-Mount Hands-free Intercoms (Indoor/Outdoor)
The wall-mount hands-free intercoms include a built-in speaker amplifier and external audio output.
They are available with an optional gooseneck mic or a headset jack.
Models DHF-201 (NEC Div. 2) Single Button Wall- mount Hand s- free Interc om includes a single
programmable push button for call-in only.
Models DHF-202 (NEC Div. 2) Wall-mount Hands-free Intercom with 16-Button Keypad includes
two programmable push buttons.
Figure 2. Model DHS-201
Flush-Mount Hands-free Intercoms
The flush-mount hands-free models include a
built-in speaker amplifier and external audio
output, and are available with an optional
gooseneck microphone.
Model DHF-203 Single Button Flush-Mount
Hands-free Intercom includes a single
programmable push button for call-in only.
Model DHF-204 Flush-Mount Hands-free
Intercom with 16-Button Keypad includes two
programmable push buttons.
Figure 3. Models DHF-201 and DHF-202
Figure 4. Models DHF-203 and DHF-204
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Description of Major Components
The 200 Series Digital Intercom Stations are made up of a front panel assembly and a rear enclosure.
The following assemblies are mounted on the interior side of the front panel:
69539-10x Audio/Interface PCB Assembly
69547-10x Intercom PCB Assembly
Refer to Figure 5 below. The front panel contains the user interface components (microphone, speaker,
status LED, keypad, and handset) in addition to the 69539-10x Audio/Interface PCBA that provides all
terminations except earth ground. This PCBA also contains controls for volume, gain, and switch
configuration.
The 69547-10x Intercom PCBA connects to the Audio Interface PCBA from below to transmit/receive
audio, data, and control information to and from the central control cabinet. The rear enclosure protects
the electronics from the harsh environment, and also contains the termination for earth ground.
Figure 5. Front Panel Assembly with Intercom and Audio Interface PCBAs
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Installation
General Information
WARNING
D, Class II Division 2, Groups F, and G, Class III OR non-hazardous locations only. Combinations
of equipment in your system are subject to investigation by the local Authority Having Jurisdiction
at the time of installation.
WARNING
been removed or the area is known to be non-hazardous.
WARNING
for Class I, Division 2.
Averttissement – Risque d’explosion - la substitition de composants peut rendre ce matériel
inacceptable pour les em-placements de Classe 1, Division 2.
Averttissement – Risque d’explosion – avant de déconnector l’equipment, couper le courant ou
s’assurer que l’emplacement est désigné non dandereux.
Install equipment without modification and according to all applicable local and national electrical codes.
USA and Canada Consult the National Electrical Code (NFPA 70), Canadian Standards Association
(CSA 22.1), and local codes for specific requirements regarding your installation. Class 2 circuit wiring
must be performed in accordance with NEC 725.55.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and
EXPLOSION HAZARD – Do not disconnect equipment unless power has
EXPLOSION HAZARD - Substitution of components may impair suitability
General Installation Guidelines
This station contains a high gain amplifier, which enables operation in high noise environments. To
prevent feedback problems in the system, the ambient noise levels, volume settings, and station placement
must be taken into consideration. Unpleasant feedback problems can be reduced by taking the following
measures:
Pointing the speaker away from nearby Intercom Stations
Placing the speakers in separate rooms from Intercom Stations
Reducing volume levels
Security Hardware
The stations in the manual are vandal resistant. The front panel is attached to its enclosure with security
screws. A GAI-Tronics Model 233-001 Security Screwdriver or Torx T-25 security head tip (sold
separately) is required for installing or removing the front panel.
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Conduit Installation Details
GAI-Tronics recommends installing wiring in conduit to protect against accidental damage and
vandalism. To prevent moisture from entering the enclosure, we strongly recommend the following:
Conduit should enter the enclosure from the bottom.
If entered from the top, the conduit must
be internally sealed to prevent moisture ingress.
Sealed fittings should be installed at all cable entry points.
Silicone sealant or equivalent should be applied around and inside all conduit entries.
Figure 6. Bottom entry conduit installation details
for metallic enclosures
Figure 7. Top entry conduit installation details for
metallic enclosures (NOT recommended)
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Mounting
Models DHS-201, DHF-201, and DHF-202
The mounting and wiring instructions for the model
listed above are as follows:
1. Remove the four security screws from the front of
the intercom station, and separate the front panel
from the rear enclosure. Place the front panel and
screws in a safe location.
2. Secure the rear enclosure to the mounting surface
using the four 0.28-inch (7.11-mm) mounting
holes provided along with four ¼-inch (M6)
diameter bolts of the appropriate length for the
mounting surface.
3. Install the field wiring according to the
instructions provided on page 10.
Figure 8. Model DHF-202
Figure 9. Model DHS-201
4. Using the appropriate section of this manual,
make the necessary set-up changes:
Adjust the audio levels as described in the
“Audio Level Adjustments” section beginning
on page 13.
Make any necessary hardware configuration
changes as described in the “Switch
Configuration” section on page 16.
Refer to page 17 for the initial programming
options.
5. Complete the installation by reattaching the front
panel assembly to the rear enclosure using the
four security screws. Use a torque setting of 30
in-lbs. or 35 cm-kg.
6. Verify that the unit is operating as described in the
“Operation” section beginning on page 19.
OTE: When using the GAI-Tronics Model 231-001
N
Pole Mounting Kit, follow the mounting instructions
provided in the kit.
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