Gai-tronics DHF-103 DATASHEET

Pub. DSDHF-103

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Model DHF-103 Flush-Mount Hands-free

Digital Intercom Station

General Information

This data sheet applies to the Model DHF-103 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-103 Flush-Mount Hands-free Intercom includes a programmable push button. 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-103 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-103 Flush-Mount Hands-free Digital Intercom Station

GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA

610-777-1374  800-492-1212  Fax: [phone]

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ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS

Pub. DSDHF-103

ODEL DHS/DHF-103 FLUSH-MOUNT HANDS-FREE DIGITAL INTERCOM STATION Page 2 of 2

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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 V

Hum and noise............................................................ -55 dB (20 Hz–20 kHz)

Indicators ............................ External ........................................................................................... Call Status

Internal** ..................................................................................... Power, Fault

Controls............................... External ................................................................................ Push-button input

Internal ............................ Speaker Volume, Speaker Gain, Audio Line Level,

Handset Volume, Unit Speaker Volume, Volume,
AGC Level**, AGC Bypass**
**Operational on locally powered units only.

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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 mm

Audio....................................................... No. 16–24 AWG (1.31–0.205 mm

Inputs/outputs.......................................... No. 16–24 AWG (1.31–0.205 mm

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Temperature range ............................................................................... −4º F to + 140º F (−20º C to +60º C)

Construction........................ Panel.............................................................. 14-gauge brushed stainless steel

Back box................ 16-gauge cold rolled steel with black polyurethane finish

Dimensions ......................... Panel............................................. 12.0 H × 10.0 W inches (304.8 × 254 mm)

Back box (depth from mounting surface)..................... 2.38 inches (60.5 mm)

Weight................................................................................................................................................. 7.0 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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