Access control reader DAHUA DHI-ASR2200A-D — Basic reader, 12 V DC, 1.7 W, 135×40×15 mm, black

DAHUA DHI-ASR2200A-D is a basic access control reader designed for integration into entry and security systems. The reader accepts contactless ID cards and transmits credential data to an access controller for verification. It is powered by 12 V DC with typical power consumption of 1.7 W and a maximum DC current of 0.5 A. The compact black housing measures 135 × 40 × 15 mm and combines a PC body with a tempered glass panel and IP66 protection, allowing installation in both indoor and outdoor locations.

Advantages

The DHI-ASR2200A-D offers simple installation and a slim profile suited for mounting on doors or panels. It supports both Wiegand and RS485 communication, enabling compatibility with a wide range of access controllers. Built-in indicator and buzzer prompts provide clear user feedback, while anti-tampering alarm and watchdog functionality improve reliability by detecting abnormal operation and initiating recovery. All connection ports include overcurrent and overvoltage protection for enhanced durability.

Suitable for

• Office buildings and corporate reception points
• Schools, universities and educational facilities
• Residential complexes and gated communities
• Industrial sites, factories and warehouses
• Government properties, stadiums and public venues

Key specifications

• Power supply: 12 V DC
• Typical power consumption: 1.7 W
• Maximum DC current: 0.5 A
• Dimensions: 135 × 40 × 15 mm
• Housing color and materials: black PC body with tempered glass panel
• Ingress protection: IP66 (suitable for indoor and outdoor use)
• Credential type: contactless ID card support
• Communication interfaces: Wiegand and RS485
• User feedback: buzzer and indicator prompts
• Security features: anti-tampering alarm, built-in watchdog
• Port protection: overcurrent and overvoltage protection on connection ports

How to use

Mount the reader on a suitable surface near the controlled entry point using the appropriate screws or mounting accessories, ensuring the unit is positioned for easy card presentation. Connect the reader to the access controller using the Wiegand or RS485 interface according to the controller's wiring diagram, and supply 12 V DC power. Configure the controller to recognize the reader and enroll ID cards in the controller database. Test card reads to verify communication, buzzer and indicator responses, and anti-tamper signalling before putting the device into regular operation.

Recommendations

For reliable long-term performance, install the reader in a location protected from direct physical impact and extreme debris accumulation. Use the specified 12 V DC power source with appropriate surge protection. Regularly inspect the reader housing and connectors for signs of wear or damage, and follow the access controller manufacturer's guidelines for card enrollment and system-level security settings.