Dahua ASC4202B-D Dual-Door Bidirectional Access Controller with RFID, QR Code, Fingerprint, and PoE AI
ASC4202B-D is an advanced bi-directional dual-door access controller, designed for professional systems with high security and centralized management. Based on Embedded Linux , it supports up to 100,000 users , 100,000 cards , 10,000 fingerprints and 500,000 events , ensuring high performance and scalability. It integrates multiple authentication methods including card, password, fingerprint and QR code , with multi-factor authentication and advanced functions such as anti-passback, multi-door interlock and remote verification . Thanks to TCP/IP connectivity, PoE support and compatibility with DMSS and DSS Pro platforms, it offers real-time control and monitoring. Equipped with expandable alarm inputs and outputs , it is ideal for enterprise applications and integrated security systems. Dahua
BUSQUE INSTALADOR
ASC4202B-D | DUAL ACCESS CONTROL FOR TWO-WAY DOORS
The Dahua ASC4202B-D is a professional bi-directional dual-door access controller, ideal for advanced security systems and corporate environments. Based on Embedded Linux , it supports up to 100,000 users , 100,000 cards , 10,000 fingerprints and 500,000 records , ensuring high scalability. It integrates multiple authentication methods such as card, password, fingerprint and QR code , with multi-factor authentication and advanced functions such as anti-passback and multi-door interlock . Thanks to TCP/IP connectivity, PoE support and compatibility with DMSS, DSS Pro and SmartPSS Lite , it allows real-time management and monitoring. Equipped with expandable alarm inputs and outputs , it represents a complete solution for modern access control.
Main specifications:
- Bidirectional Double Door: simultaneous management of two accesses with advanced control and high security
- High capacity: up to 100,000 users, 100,000 cards, 10,000 fingerprints and 500,000 events
- Advanced authentication: card, password, QR code and fingerprint support with multi-factor authentication
- Security functions: anti-passback, multi-door interlock, remote verification and intelligent access management
- Full connectivity: TCP/IP network, PoE power supply and compatibility with Dahua platforms
- Alarm Inputs/Outputs: event management with expandable inputs and outputs for security system integration
Further details
✅ System:
Based on Embedded Linux with a dedicated processor, it supports IPv4, IPv6, TCP, UDP and P2P protocols, as well as ONVIF Profile C standards, ensuring complete integration with security and management platforms via API and SDK .
✅ Functions:
It offers multiple access methods including card, password, fingerprint and QR code , with multi-factor authentication , advanced functions such as anti-passback , multi-door interlock , remote verification and real-time monitoring.
✅ User :
Advanced management of different user profiles such as VIPs, guests, standard users and blacklists , with customizable configurations for each category and detailed access control.
Technical data sheet
| MODEL | ASC4202B-D |
| 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 4-channel RS-485 card readers and 4-channel Wiegand card readers. |
| Multi-door Interlock | Yes |
| 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 | 5 ports. 4 for card readers, and the remaining 1 is for the extension port. |
| Wiegand | 4-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 | 4 channels; expandable to 8 channels when connected to an external alarm module. |
| Alarm Linkage | Yes |
| Exit Button | 2 channels |
| Door Status Detection | 2 channels |
| Lock Control | 2 channels |
| 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 | ≤ 3W; it might alter if other devices are connected |
| Product Dimensions | 210.0 mm × 106.0 mm × 34.1 mm (8.27" × 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 | 0.54 kg (1.19 lb) |
| Installation | Surface Mount;Guide Rail Mount |