Dahua DHI-ASR2100A-ME - IP66 Waterproof RFID Card Reader for Access Control

Dahua DHI-ASR2100A-ME - IP66 Waterproof Card Reader for Access Control

The Dahua DHI-ASR2100A-ME is a slim card reader for doors and gates, made to be fitted outdoors as well as indoors. It reads the card and passes the details to a separate access controller, which decides whether to unlock.

It reads 13.56MHz Mifare Classic 1K cards and 125kHz ID cards at 0 to 5cm, with a 0.1 second response. It connects over RS-485 or a Wiegand output using the Wiegand 34 protocol, and gives feedback with a buzzer and indicator light.

The PC and acrylic housing is IP66 rated when sealed with silicone as described in the manual, and works from -30 to +70 degrees C. It surface mounts, measures 123 x 86 x 15mm, runs on 12V DC at 0.5A and has an anti-tamper alarm.

Also listed as ASR2100A-ME.

Key features

• PC material, acrylic panel and IP66 (silicone sealant is needed, see the manual), suitable for indoor and outdoor use
• Contactless recognition of IC card (Mifare card) and ID card in two frequencies
• Card unlock
• RS-485 and Wiegand communication
• Buzzer and indicator prompt
• Anti-tampering alarm
• Built-in watchdog program to detect abnormal operation and recover
• Over-current and over-voltage protection on all connection ports

Technical specification

Works with

The reader sends card information to an access controller. Zenith lists these Dahua controllers (both take RS-485 and Wiegand card readers) and IC cards:

• Dahua DHI-ASC2202B-S - 2-door network access controller
• Dahua DHI-ASC2204B-S - 4-door network access controller
• Dahua IC-S50 - MIFARE S50 13.56MHz access control card
• Dahua IC-SM - MIFARE key fob

Other suggested pairings:

• Dahua DHI-ASC2204C-S 4-Door Access Controller: a Dahua network access controller for the reader to report to
• Dahua DHI-ASC3202B 1-2 Door Access Controller: a smaller Dahua web-based controller for one or two doors

Pairings are suggested on general compatibility (same brand, matching connection type and specification), not as tested combinations.

Common questions

Can this reader make access decisions on its own?

No. It is an external card reader that sends the card information to an access controller for verification, over RS-485 or Wiegand.

Is it suitable for outdoor use?

Yes. Dahua lists it for indoor and outdoor use, with IP66 protection (silicone sealant is needed, see the manual) and an operating range of -30°C to +70°C.

Which cards does it read?

IC cards (Mifare) and ID cards, in two frequencies, at 0 cm to 5 cm with a 0.1 s response.

What outputs does it have?

1 channel of RS-485 and 1 output channel of Wiegand.

Does it have a tamper alarm?

Yes. It supports an anti-tampering alarm and has a built-in watchdog program for abnormal operation.

How is it powered?

12V 0.5A DC. Power consumption is 0.9W on standby and 1.7W when working.

Which Wiegand format does it use?

Dahua lists one Wiegand output channel using the Wiegand 34 protocol. It also has one RS-485 channel.

How is it mounted?

It is surface mounted. The reader measures 123 x 86 x 15mm.

What frequencies does it read?

13.56MHz for Mifare Classic 1K cards and 125kHz for ID cards.

Full manufacturer specification: Dahua product page

Browse the full Dahua range or see more Access control equipment. Contact us on 01902 902251 or visit our Wolverhampton trade counter.

Supplied by Zenith Security Co, Wolverhampton. We deliver to England, Scotland and Wales, or you can collect from our Wolverhampton trade counter (please call first).