Dahua Technology DHI-ASR1100B-V1 RFID reader RS-485/Wiegand Black

Dahua ASR1100B-V1 is an access control reader designed to read proximity cards and key fobs for secure entry systems. The device features a wired interface for integration with access panels and controllers, enabling reliable user authentication and door control. Compact and unobtrusive, the reader is suitable for installation at entry points in offices, residential buildings and small commercial sites where a straightforward proximity-based access solution is required.

Advantages

The reader supports contactless card and fob detection, providing quick identification without physical contact. Its wired interface ensures steady communication with access control panels and minimizes latency compared with some wireless alternatives. The compact design allows for flexible mounting on door frames or walls, and the device is built for continuous daily operation in typical indoor environments. Installation and integration are simplified by standard wiring connections, making it suitable for upgrades or new deployments within existing access infrastructures.

Suitable for

• Office entrances and internal secured doors
• Residential building lobbies and controlled access corridors
• Small retail or commercial premises requiring controlled access
• Integration with access control panels in renovation or expansion projects

Key specifications

• Supported credential types: proximity cards and key fobs
• Interface: wired communication for connection to access controllers
• Form factor: compact, wall- or frame-mountable reader
• Operating environment: designed for typical indoor installation
• Authentication range: proximity-based detection distance suitable for standard door setups

How to use

Mount the reader at the chosen entry point using appropriate screws and anchors for the surface. Connect the reader to the access controller or panel following the wiring diagram provided by the system integrator or Dahua documentation; ensure power and data lines are correctly assigned. Enroll proximity cards or key fobs into the access control system through the controller’s user management interface, then test each credential to confirm reliable read range and correct door release behavior. Adjust mounting height and reader orientation as needed for comfortable user interaction.

Recommendations

For reliable long-term operation, install the reader in a sheltered indoor position away from direct exposure to weather or extreme temperatures. Use shielded cabling and proper grounding where recommended by the access controller manufacturer to reduce electrical interference. Regularly verify enrollment and access logs via the controller to maintain accurate user records and perform periodic inspections to ensure the reader remains securely mounted and free of obstructions.