LCD Monitor 7" IP Wi-Fi Doorphone DAHUA VTH5422HW-W

Compact network device with a display and multiple alarm interfaces, designed for rack or wall installation. The unit features RS‑485 communication, six alarm input channels and one alarm output, and operates from a 48 VDC power supply. It is built for indoor environments with an operating temperature range from -10 °C to +55 °C and comes in a white enclosure.

Advantages

The device provides versatile connectivity with an RS‑485 port and several alarm inputs, enabling integration with external sensors and control systems. Its single alarm output allows straightforward signaling to monitoring equipment. Low-voltage 48 VDC power and a wide operating temperature range support reliable operation in typical indoor installations. The white housing offers a neutral appearance suitable for technical rooms and visible installations.

Key specifications

• Display: integrated display
• Communication interface: 1 × RS‑485
• Alarm inputs: 6 × Alarm In
• Alarm outputs: 1 × Alarm Out
• Power: 48 VDC, 1.25 A
• Operating temperature: -10 °C to +55 °C
• Colour: White

How to use

Mount the device according to the manufacturer's mounting instructions appropriate for rack or wall installation. Connect the RS‑485 terminal to the control system or network device following the correct wiring polarity and communication settings. Wire external sensors or contacts to the six alarm input terminals, and connect monitoring equipment or actuators to the single alarm output. Supply power with a 48 VDC source capable of at least 1.25 A. Verify connections and perform functional tests at room temperature within the specified operating range.

Рекомендации

Use shielded cables for RS‑485 connections to reduce interference, and ensure proper grounding. Install the device in a dry, ventilated location within the specified temperature limits. For long-term reliability, avoid exposure to extreme humidity or dust and verify power supply stability rated at 48 VDC, 1.25 A.