Pub. DSDHF-102
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model DHF-102 Wall-Mount Hands-free
Digital Intercom Station
General Information
This data sheet applies to the Model DHF-102 Flush-Mount Hands-free Digital Intercom Station, which is
designed for use in hazardous and non-hazardous area communications, both indoors and outdoors, and in
high noise areas. It is ideal for both large and small intercom systems. All communication to the station
is via a two-wire digital communication line.
The Model DHF-102 Wall-Mount Hands-free Intercom includes two programmable push buttons and a
16-button keypad. It also includes a built-in speaker amplifier and external audio output, and is available
with an optional gooseneck microphone.
This station provides all-call, group call, hands-free, and handset communication, input/output controls,
and a variety of other functions. It also contains integrated functions such as door and gate control, and
video integration, and control desk functions, etc.
As a minimum, the Model DHF-102 requires 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
and audio line driver operation). Additional remote amplifiers can be installed with this station to
broadcast audio into additional areas.
Figure 1. Model DHF-102 Wall-Mount Hands-free Digital Intercom Station
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 „ 800-492-1212 „ Fax: 610-796-5954
VISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
MODEL DHF-102 Wall-Mount Hands-free DIGITAL INTERCOM STATION
Pub.: DSDHF-102
Page 2 of 2
Specifications
Power input (24 V ac) ......... Voltage ................................................................................ 24 V ac, 50/60 Hz
Power consumed ......................................................... 36 VA, 30 watts (max.)
Power input (24 V dc)......... Voltage ................................................................................................. 24 V dc
Power consumed ............................................................. 29 watts (maximum)
Speaker amplifier** ............ Output.............................................. Class D, 12 watts maximum into 8 ohms
Frequency response ............................. 200–7,000 Hz, +0/−3 dB ref. @ 1 kHz
Distortion............................................ 2% maximum THD @ 1 kHz, 12 watts
Hum and noise........................................................... −55 dB (20 Hz–20 kHz)
Loudspeaker........................................................................................................................................ 8 ohms
Audio Line Driver**........... Output................................................................ 0 dBm @ 600 ohms, nominal
Frequency response ............................. 200–7,000 Hz, +0/−3 dB ref. @ 1 kHz
Distortion......................................... 2% maximum THD @ 1 kHz, 0.775 Vrms
Hum and noise........................................................... −55 dB (20 Hz–20 kHz)
Indicators ............................ External ........................................................................................... Call Status
Internal** ..................................................................................... Power, Fault
Controls............................... External ................................................................ Keypad, push-button inputs
Internal .............................Speaker Volume, Speaker Gain, Audio Line Level,
Handset Volume, Unit Speaker Volume, Volume,
AGC Level**, AGC Bypass**
**Operational on locally powered units only.
Inputs .......................................................................................... Two configurable inputs, footswitch input
Outputs.................................................................................................................. Two configurable outputs
30 V dc/100 mA maximum switching
System cabling .................... Power....................................................... No. 12–18 AWG (3.33–0.823 mm2)
Audio....................................................... No. 16–24 AWG (1.31–0.205 mm2)
Inputs/outputs .......................................... No. 16–24 AWG (1.31–0.205 mm2)
Temperature range ............................................................................... −4º F to + 140º F (−20º C to +60º C)
Construction........................................................................................ Cast aluminum painted safety orange
Dimensions ....................................................... 9.5 H × 8.0 W × 4.0 D inches (241.3 × 203.2 × 101.6 mm)
Weight..................................................................................................................................................8.7 lbs.
Approvals
NRTL Listed for USA and Canada............................................ Class I, Div. 2, Groups A, B, C, and D, T4
Class II, Div. 2, Groups F and G
Class III, Div. 2
CE Mark
Safety of Information Technology Equipment ...... UL 60950, CAN/CSA-C22.2 No. 60950-00, IEC 60950
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