Corporate
Language
Display & Control Transmission Fire Alarms
Logo

Logo

Hot Searches

Higher Education

Higher Education

Factories

Factories

Network Cameras

Network Cameras

Quick Links

City Business

Traffic Management

Fire Lane Parking Detection

Newsroom

Dahua Launches Enhanced Anti-Corrosion Cameras for Extreme Environments

2026-03-26

Dahua Launches Enhanced Anti-Corrosion Cameras for Extreme Environments

ASC4204C-D

Overview Specifications Download Sales Enquiry
ASC4204C-D_View_Front-logo.png
ASC4204C-D_View_45left-logo.png
ASC4204C-D_View_45Right-logo.png
ASC4204C-D_View_Rear-logo.png
Compare Favourite
ASC4204C-D

Dahua Four Door two-way Access Controller

Key Points
    • Web-Based 4 Door 2 Way Networked Access Controller
    • 100,000 Users, 100,000 Passwords, 100,000 Cards, 10,000 Fingerprints and 500,000 Access Records
    • 9 x RS485 ports, 8 x Wiegand Ports
    • 5 Channel Alarm Input, 4 Channel Alam Output
    • Supplies Power to 4 Locks and 8 Card Readers
    • Supports Anti-Passback, Multi-Person Unlock, First-Card Unlock and Remote Verification
    • Supports Backup DC12V7A Battery Access, Charging and Discharging
    • Features Fire Alarm Linkage
Sales Enquiry
Datasheet

Specifications

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 Iron Case Access 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 8-channel RS-485 card readers and 8-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 heat alarm.
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, 4 A; 12 VDC, 12.5 A)
Power Consumption ≤ 3 W; 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" × 13.9" × 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

Dahua Partner APP

Now with a fresh new look and lots of added features. Download the app today and enjoy your all-in-one business platform at your fingertips

logo Download

Please select your question

Back to Previous Site

To ensure continuity of service, the previous version of our official website remains available. You may access it via the link provided.

Previous Version
* Limited to a maximum of 4 products
Reset
Compare