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42 Central Drive • Farmingdale NY 11735-1202 • Phone (631) 777-5500 • Fax (631) 777-5599
TOLL-FREE 1-800-666-4800 • Web: www.AlphaCommunications.com • Email: email@example.com
Rev. 1 - 02/01
VT420B / VT420C
Entrance Panel Modules
With 'MOVING' Camera
The Alpha Communications® VT420B (Black and White)
and VT420C (Color) Series Apt. Video-Intercom Entrance
Panel modules are designed to be used with the CM490
series button modules and AM190D directory modules, to
provide a complete building video-intercom entrance panel.
Both modules are equipped with model TE-TT voice-
frequency response speaker and electret condenser mi-
crophone, both protected by a louvered grill and perfo-
rated aluminum material. The VT420B models have a built-
in Black and White 'MOVING' camera and the VT420C
models have a built-in Color 'MOVING' camera, both with
a protective domed polycarbonate enclosure.
The VT420B is normally used with the VH25MS series
video-intercom monitors and the VT420C is normally used
with the VHC25MS series video-intercom monitors.
• Built-in 'MOVING' camera with protective domed en-
• Weather-resistant speaker and electret microphone
• Hands-free loud-speaker (or optional handset)
• Tamper resistant mounting screws (on panel frame)
OF190 Series frame: 19" (456 mm) height
(width depends upon no. of modules)
Construction: Modular extruded anodized aluminum
OH190 series flush
OF190S series surface
Do to continuous product improvement, all colors, sizes, materials,
finishes and specifications are subject to change without notice.
VT420B / VT420C Module
ARCHITECTS' AND ENGINEERS'
The entrance video-intercom panel module(s) shall be Alpha
Communications® VT420B or VT420C series. It shall contain
as many engraved plungers as there are suites or areas to be
called using the CM490 series add-on