Dahua Technology DHI-ASR2201A access control reader Basic access control reader Black

The DAHUA DHI-ASR2201A is a compact access control reader designed for basic authentication and entry management. It uses RS-485 communication and is powered by a 12V DC supply with low power consumption, making it suitable for mounting on doors, gates or turnstiles in offices, retail environments and residential buildings.

Advantages

The reader’s compact form factor enables discreet installation in confined spaces. RS-485 connectivity allows stable, long-distance communication with access control panels. Low power draw simplifies power provisioning and reduces operational cost. The device is manufactured by a known brand and fits standard access control setups for straightforward integration.

Suitable for

• Office door access control
• Retail entrance management
• Residential building entry systems
• Turnstile and gate integration

Key specifications

• Communication interface: RS-485
• Power supply: 12V DC
• Power consumption: 1.7 W
• Operating temperature range: -30 °C to 70 °C
• Color: black

How to use

Mount the reader on a secure surface near the controlled entry point and connect it to the access control panel using RS-485 wiring. Provide a stable 12V DC power supply able to deliver at least 0.5 A. Configure the reader within the access control system according to the panel manufacturer’s instructions and enrol cards or credentials following standard setup procedures.

Recommendations

Install the device in a sheltered location to avoid direct exposure to extreme weather; verify wiring polarity and grounding during installation and regularly check connections and enrolled credentials for reliable operation.