The Alpha Communications® VM420 and VT420 Vandal-Resistant 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.
VM420 modules are equipped with a mylar, voice frequency response speaker and model MI004 electret condenser microphone, both protected by a louvered grill and perforated aluminum material. VT420 modules are equipped with a model 930A speaker/microphone assembly, protected by a louvered grill and perforated aluminum material. Both models have a built-in black and white CCD camera, protected by a polycarbonate Lexan® window.
The entrance video-intercom panel module(s) shall be Alpha Communications® VM420 or VT420 Vandal-Resistant series. It shall contain as many engraved plungers as there are suites or areas to be called using the CM490 series add-on button modules. AM190D directory panels are to be supplied to accommodate an equivalent number of tenant names.
Each module shall include a weather-resistant speaker/microphone mounted behind louvered grilles and perforated aluminum material to protect them from damage. Each module shall contain a built-in black and white CCD camera, protected by a Lexan® polycarbonate window.
All mounting screws shall be tamper resistant. The panel shall be flush (or surface) mounted and shall be finished in natural anodized aluminum. Contractor shall supply building owner/ manager with a model S1 screwdriver for future directory name maintenance.