25H/SP/DDA/2W (1 way “2 wire” DDA audio intercom kit)
MANUAL INTRODUCTION
The information in this manual is intended as an installation and commissioning guide for the 25H/SP/
DDA/2W - 1 way “2 wire” DDA audio intercom kit. This manual should be read carefully before the installation
commences. Any damage caused to the equipment due to faulty installation where the information in this
manual has not been followed is not the responsibility of Videx Security Ltd.
A copy of this Technical Manual can also be downloaded from the Videx website: www.videxuk.com.
It is recommended that the audio intercom kit is installed by a competent electrician, security or
communications engineer.
VIDEX run free training courses for engineers who are unfamilier or who have not installed this kit before.
Technical help is also available on 0191 224 3174 during oce hours (8:30am - 5:00pm MON to FRI) or via
e-mail: tech@videxuk.com.
SYSTEM INTRODUCTION
The 25H/SP/DDA/2W - 1 way “2 wire” DDA audio intercom kit includes features to aid users with disabilities
and makes the process of calling an apartment more user friendly helping comply with the Equality Act 2010.
The intercom panel is manufactured from 12 gauge 316 grade vertically brushed stainless steel and
incorporates a ‘speak’, ‘busy’ and ‘door open’ call progress LEDs. An additional feature is the 2 line 16 digit
display which also includes speech annunciation and is used to indicate the progress of a call. It also has a
user friendly DDA compliant illuminated braille call button.
A ush back box (VRFB120x280) is standard in this kit, however a ush stainless steel bezel back box
(VRBB120x280) and a surface back box with rainshield (VRSB120x280) are also available on request (refer to
page 7).
Key Features Include:
• 12 gauge stainless steel intercom panel.
• Illuminated braille call push button.
• SPEAK, BUSY and OPEN call progress indication LEDs.
• Speech annunciation and call progress reassurance tones.
• Dry contact relay output.
• Timed call, speech and lock release.
• Speaker and microphone volume adjustment.
• Audiophone calltone volume adjustment.
KIT COMPONENTS
The kit includes the following parts:
• A 12 gauge stainless steel VR120 intercom panel with ‘built-in’ braille call button,
138N amplier and 138-UIM user interface display module (including ush back box
VRFB120x280).
• The Art.3171 audiophone (for the VX2200 digital system).
• The Art.521, 12Vdc 1A power supply boxed in a 9 module DIN box type A.
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