ASC4204C-D is a professional bi-directional four-door access controller, designed for advanced security systems and complex enterprise environments. Based on Embedded Linux , it supports up to 100,000 users , 100,000 cards , 10,000 fingerprints and 500,000 events , ensuring high capacity and reliability. It integrates multiple authentication methods such as 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 and compatibility with DMSS, DSS Pro and SmartPSS Lite platforms, it allows real-time management and monitoring. Equipped with expandable alarm inputs and outputs and support for multiple readers, it represents a complete solution for large-scale access control. Dahua
BUSQUE INSTALADOR
ASC4204C-D | TWO-WAY DOOR ACCESS CONTROL
The Dahua ASC4204C-D is an advanced bi-directional four-door access controller, ideal for professional security systems and large-scale installations. Based on Embedded Linux , it supports up to 100,000 users , 100,000 cards , 10,000 fingerprints and 500,000 events , ensuring high capacity and reliability. It integrates multiple authentication methods such as 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 and compatibility with DMSS, DSS Pro and SmartPSS Lite platforms, it allows real-time management and monitoring. Equipped with expandable alarm inputs and outputs and support for numerous readers, it represents a complete solution for modern access control.
Main specifications:
- 4 Bidirectional Doors: advanced management of up to four simultaneous accesses with a high level of 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 control
- Full connectivity: TCP/IP network and integration with Dahua platforms for centralized management
- Alarm Inputs/Outputs: Up to 5 inputs and 4 expandable outputs for event management and advanced security
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 compatibility, ensuring complete integration into security and management systems via API and SDK .
✅ Functions:
It offers advanced authentication modes with card, password, fingerprint and QR code , supporting multi-factor authentication , security functions such as anti-passback , multi-door interlock , remote verification and real-time monitoring.
✅ User :
Complete management of different profiles such as standard users, VIPs, guests and blacklists , with customizable configurations for each category and detailed access control.
✅ Capacity:
Supports up to 100,000 users , 100,000 cards , 10,000 fingerprints and 500,000 events , ideal for large installations and complex systems.
Technical data sheet
| MODEL | ASC4204C-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 | SGCC galvanized |
| 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 | 9 ports. 8 for card readers, and the remaining 1 is for the extension port |
| Wiegand | 8-channel input |
| Network Port | 1 RJ-45, 10 Mbps/100 Mbps self-adaptive |
| Alarm Input | 5 channels. Channel 1 is for connecting to the fire safety control. Channels 2–3 support alarms for different events. There are 4 statuses for these channels: Normal, alarm, short circuit and open circuit. Channels 4–5 are standard alarm input 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 | 4 channels |
| Door Status Detection | 4 channels |
| Lock Control | 4 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 | Switching power supply (AC to DC, AC 100–240 V 1.4 A; DC 12 V 6 A) |
| Power Consumption | ≤ 3W; it might alter if other devices are connected |
| Product Dimensions | 397.6 mm × 262.6 mm × 82.8 mm (15.65" × 10.34" × 3.26") (L × W × H) |
| Packaging Dimensions | 473 mm × 353 mm × 162 mm (18.62" × 13.90" × 6.38") (L × W × H, 1 in inner 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 | 4.0 kg (8.82 lb) |
| Installation | Surface Mount |