Brand originChina
Supported
Supported
Dahua ASC4201B-D
Category
Controller
First seen by Awernica
Oct 2026
Keep every device you have installed in one list – firmware, lifecycle and replacements. No card.
Software Support
Not specified
No published date
Replacement
Not specified
No verified replacement
On your sites?
Add to a site
Track firmware, EOL and replacements for every device you have installed – in one list.
Specifications
From the manufacturer's product information.
System
- Main Processor
- Embedded Processor
- Network Protocol
- IPv4;UDP;P2P;IPv6;TCP
- OSDP Protocol
- Yes
- Interoperability
- ONVIF PROFILE C
- SDK
- Yes
- API
- Yes
Basic
- Product Type
- Controller
- Buzzer
- Yes
- Casing Material
- PC+ABS
Function
- Verification Method
- Card;Password;Fingerprint;Remote;QR Code
- Period List
- 128 groups
- Holiday Period
- 128 groups
- Network Update
- Yes
- First User Unlock
- Yes
- Remote Verification
- Yes
- Restricted List/Trusted List
- Yes
- Peripheral Card Reader
- Supports 2-channel RS-485 card readers and 2-channel Wiegand card readers.
- Multi-user Authentication
- Yes
- Real-time Monitoring
- Yes
- Multi-factor Authentication
- Yes
- Web Configuration
- Yes
- Unidirectional or Bidirectional
- Bidirectional
User
- User (Card) Type
- General user, VIP user, patrol user, guest user, blocklist user, other users, custom user 1 and custom user 2
Capacity
- User Capacity
- 100,000
- Fingerprint Capacity
- 10,000
- Card Capacity
- 100,000
- Record Capacity
- 500,000
Port
- RS-485
- 3 ports. 2 for card readers, and the remaining 1 is for the extension port.
- Wiegand
- 2-channel input
- Network Port
- 1 RJ-45, 10 Mbps/100 Mbps self-adaptive
- Alarm Input
- 4 channels; expandable to 8 channels when connected to an external alarm module.
- Alarm Output
- 3 channels; expandable to 8 channels when connected to an external alarm module.
- Alarm Linkage
- Yes
- Exit Button
- 1 channel
- Door Status Detection
- 1 channel
- Lock Control
- 1 channel
Alarm
- Anti-pass Back
- Yes
- Tamper Alarm
- Yes
- Duress Alarm
- Yes
- Door Sensor Timeout
- Yes
- Intrusion
- Yes
- Illegal Card Exceeding Threshold
- Yes
- Duress Fingerprint
- Yes
General
- Power Supply
- Standard PoE;; 12 VDC 1A （no peripheral devices）
- Power Consumption
- ≤ 3 W; it might alter if other devices are connected
- Product Dimensions
- 155.6 mm × 106.0 mm × 34.1 mm (6.13" × 4.17" × 1.34") (L × W × H)
- Packaging Dimensions
- 255 mm × 166 mm × 87 mm (10.04" × 6.54" × 3.43") (L × W × H, 1 in inner carton); 512 mm × 269 mm × 196 mm (20.16" × 10.59" × 7.72") (L × W × H, carton)
- Operating Temperature
- –30 °C to +60 °C (–22 °F to +140 °F)
- Operating Humidity
- 5%–95% (RH), non-condensing
- Operating Environment
- Indoor
- Gross Weight
- 0.46 kg (1.01 lb)
- Installation
- Surface Mount;Guide Rail Mount
New here?
Awernica keeps your installed devices and systems up to date.
- Firmware & end-of-life tracking
- Cross-manufacturer spec search
- Site lists and equipment plans
- Earn Credits – unlock Pro tools without paying
No card · 7-day Pro trial included
See a real site first