ARCHITECTS' AND ENGINEERS'
The video-intercom monitor station(s) shall be Alpha Communi-
cations®/S.T.R.™ VH30K (residential/commercial) or VH30AK
(apartment house) type. Monitor(s) shall be mounted surface (or
desktop using optional model TZ30WH adaptor). Monitor(s) shall
include a high quality 4.0" flat screen. Monitors using mirrors or
other non-flat type screens shall not be acceptable. Monitor(s)
shall feature front mounted controls for brightness, contrast and
horizontal hold Monitor handset shall feature electret condenser
microphone for exceptional voice fidelity. Handsets that include
carbon transmitter or other voice technologies shall not be
acceptable. Handset shall have a textured finish and flexible coiled
cord. Handset shall include a door release (KEY SYMBOL) button
and auxiliary (DOT) push button. Push buttons shall be clearly
visible and shall be marked in a different color. Handset shall include
an adjustable volume AC buzzer (or optional R2007 AlphaTone™
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VH30K / VH30AK
The AlphaCommunications®/S.T.R.™ VH30K (residential/com-
mercial) and VH30AK (apartment house) series monitors are designed
to meet virtually any requirement for video-intercom security.
These attractive monitors are conveniently surface mounted right on
the wall. Monitors can be changed to desk mount with the addition
of a model TZ30 series desk adaptor.
All VH30K / VH30AK series monitors feature a crystal clear 4.0"
black and white flat screen monitor (measured diagonally), textured
finish handset (to minimize scratches and fingerprints), electric
buzzer signalling (adjustable), flexible coiled cord and two (2) momen-
tary button switches. These switches can be used for door release or
other signalling func