Videopuhelinjärjestelmä DAHUA VTH2421FB — 7 tuuman 1024×600 LCD, 1,5 W kaiutin, Fast Ethernet, G.711, TCP/IP, Linux

The Dahua Technology VTH2421FB is a 7" video intercom monitor with a 1024 x 600 LCD display designed for indoor horizontal installation. It provides audio communication with a 1.5 W speaker and supports G.711 voice codecs. The unit connects to IP-based systems via Fast Ethernet using TCP/IP protocols and runs on a Linux-based platform.

Advantages

The 1024 x 600 LCD delivers clear on-screen images for visitor identification and system menus. Fast Ethernet and TCP/IP support enable integration with networked intercom and access control systems. Compact horizontal design suits desk or wall-mounted indoor installations while the Linux operating system provides a stable software environment. Built-in G.711 codec compatibility ensures standard audio quality for voice transmission.

Suitable for

• Residential apartment entry panels and lobby stations
• Small office reception and internal communication
• Integration with IP access control and video intercom systems

Key specifications

• Display: 7-inch LCD, 1024 x 600 resolution
• Speaker output: 1.5 W
• Audio codec: G.711
• Network: Fast Ethernet, TCP/IP
• Operating system: Linux
• Operating temperature range: -10°C to +55°C
• Intended mounting: horizontal (indoor)

How to use

Install the monitor in a horizontal orientation in an indoor location and connect it to the building network via the Fast Ethernet port. Configure network settings to match the IP intercom system and verify TCP/IP connectivity. Pair the unit with the outdoor station or central controller according to the system integration guide, then test audio transmission using the built-in speaker and G.711 codec support.

Recommendations

Place the device indoors away from direct sunlight and extreme temperatures within the specified operating range (-10°C to +55°C). Use a stable Ethernet connection for reliable communication and follow the manufacturer's integration instructions when connecting to third-party IP access control systems.