Call button module Dahua Technology VTO4202F-MB2

The Dahua Technology Two-button Call Button Module VTO4202F-MB2 is a compact accessory designed for integration with Dahua access control and intercom systems. Finished in silver, the module measures 100 mm wide, 30.5 mm deep and 49.9 mm high and is supplied as a single unit. It provides two tactile call buttons that allow visitors or residents to place distinct calls within a multi-station door entry installation, supporting organized visitor routing and straightforward operation.

Advantages

The module's compact dimensions and slim profile make it suitable for flush or surface mounting in constrained spaces while maintaining a consistent aesthetic with Dahua door-station families. Its two-button layout enables assignment of separate call targets (for example, apartment and concierge) and simplifies user interaction. The silver finish is durable and neutral, easing integration into a variety of architectural styles. Single-piece packaging makes it easy to store and replace existing modules in retrofit or new-install scenarios.

Suitable for

• Residential apartment door entry panels requiring two distinct call options
• Small commercial entry points where visitor routing to different stations is needed
• Retrofit projects replacing or expanding existing Dahua intercom button modules
• Access control systems that use dedicated call buttons for multiple recipients

Key specifications

• Color: silver
• Dimensions: 100 mm (width) × 30.5 mm (depth) × 49.9 mm (height)
• Function: two physical call buttons for door entry systems
• Compatibility: designed for integration with Dahua intercom and access control panels
• Package quantity: 1 unit

How to use

Install the module into the compatible Dahua door-station frame or mounting box according to the system wiring diagram. Connect the button contacts to the designated input terminals on the intercom or access control unit and secure the module in place. Configure the connected master stations or indoor monitors to recognize each button as a distinct call source, assigning call destinations or actions as required by the installation. Test both buttons after installation to confirm proper signaling and response from the receiving stations.

Usage recommendations

For reliable operation, use the module with Dahua door-station series and follow the manufacturer's installation guidelines. Avoid exposure to direct water ingress; install the module within compatible housings or under protective covers if used outdoors. Regularly check the button actuation and wiring connections during routine maintenance of the intercom system.