Dahua DHI-ASC2204C-S - 4-Door Network Access Controller
Product Features
- Dahua DHI-ASC2204C-S 4-door, 1-way network access controller for door access control systems.
- Holds 100,000 users, cards and passwords, 3,000 fingerprints and 500,000 records.
- Offers 5 RS-485 ports and 4 Wiegand ports, with 4 RS-485 and 4 Wiegand card reader channels.
- Anti-passback, multi-door interlock, multi-person unlock and first-card unlock.
- Supports a backup DC12V7A battery; indoor use.
Dahua DHI-ASC2204C-S — 4-Door Networked Access Controller
The Dahua DHI-ASC2204C-S is a 4-door, 1-way network access controller for door access control systems. Dahua lists it as the four-door one-way controller model C (iron box, indoor). It is the access control panel, not a card reader: it connects to card readers over RS-485 or Wiegand, stores users, cards, passwords and fingerprints, and decides who may open each door over TCP/IP.
Also listed as ASC2204C-S.
Key features
- 4 doors, 1-way, with TCP/IP communication and RS-485 and Wiegand reader protocols.
- Holds 100,000 users, 100,000 cards, 100,000 passwords, 3,000 fingerprints and 500,000 records.
- Anti-passback, multi-door interlock, multi-person unlock, first-card unlock, remote verification and group combination.
- Reader tamper, intrusion, unlocking timeout, duress, invalid card exceeding threshold and incorrect password alarms, plus fire alarm linkage.
- 128 time periods and 128 holiday periods, a built-in clock (RTC) with manual and automatic time fixing, and online upgrade.
- Data is kept permanently if power fails, and a backup DC12V7A battery is supported.
- OSDP protocol and SDK support.
Technical specification
| Model | DHI-ASC2204C-S (four-door one-way controller model C, iron box, indoor) |
|---|---|
| Product type | Access controller; Type C iron container; buzzer |
| Doors | 4 doors, 1-way |
| Network | TCP/IP; IPv4; TCP; UDP; 1 × 10/100 Mbps Ethernet port |
| Reader protocols | RS-485 and Wiegand; OSDP; SDK |
| Peripheral card readers | 4-channel RS-485 card reader; 4-channel Wiegand card reader |
| Ports | 5 × RS-485 ports; 4 × Wiegand ports |
| User capacity | 100,000 users; 100,000 cards; 3,000 fingerprints |
| Record capacity | 500,000 |
| Unlock mode | Card swiping; remote; password; fingerprint |
| Time periods | 128 period list; 128 holiday periods |
| Access functions | Anti-passback; multi-door interlock; group combination; first-card unlock; remote verification; blocklist/allowlist |
| Alarm input and output | 6 alarm inputs (digital quantity); 4 alarm outputs (relay); alarm linkage |
| Door I/O | 4 exit button inputs; 4 door status detection inputs; 4 lock control channels, NO by default |
| Alarms | Tamper; duress; door unlock timeout; intrusion; illegal card exceeding threshold; duress fingerprint |
| Power supply | 100-240 V AC; backup DC12V7A battery supported |
| Power consumption | ≤ 0.8 W (standby); ≤ 39.6 W (working) |
| Protection | IP20; IK04 |
| Casing | SECC steel board |
| Operating conditions | -30 °C to +60 °C; 5%-95% RH, non-condensing; indoor |
| Dimensions | 337 mm × 272 mm × 90 mm (H × W × D) |
| Gross weight | 3.5 kg |
| Installation | Surface mount |
| Certification | CE; FCC; UL |
Works with
Card readers and related access control products from our range:
- Dahua DHI-ASR1101M-V1 card reader with keypad
- Dahua DHI-ASR2200A Mifare card and password access reader (IP66)
- Dahua DHI-ASR2201A Mifare card and keypad reader
- Dahua DHI-ASR2201A-D IC card and password access reader
- Dahua DHI-ASR2101A-D waterproof IP66 card and keypad reader
- Dahua DHI-ASR2100A-ME waterproof dual frequency card reader
- Dahua DHI-ASC3202B 1-2 door web-based access controller
- Dahua DHI-ASC2202B-S 2-door networked access controller
- Dahua DHI-ASC2204B-S 4-door 1-way network access controller
Common questions
Is the DHI-ASC2204C-S a card reader?
No. It is a networked access controller, the panel that stores credentials and makes the access decision. Card readers connect to it over RS-485 or Wiegand (4-channel of each).
How many doors can it control?
Four doors, one-way.
How many users and fingerprints can it hold?
Dahua lists 100,000 users, 100,000 cards, 100,000 passwords and 3,000 fingerprints, with 500,000 records.
Does it support anti-passback and interlock?
Yes. Dahua lists anti-passback, multi-door interlock, multi-person unlock, first-card unlock and remote verification.
What happens in a power cut?
It supports a backup DC12V7A battery, and Dahua states that data is saved permanently in case of power failure.
Can it be used outdoors?
No. Dahua lists it for indoor use (IP20, iron box).
What power does it need?
100-240 V AC. Dahua lists 0.8 W or less on standby and 39.6 W or less when working.
Full manufacturer specification: Dahua product page
Download the Dahua DHI-ASC2204C-S datasheet (PDF).
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).
Browse the full Dahua range, more Access control products, or contact us on 01902 902251 or visit our Wolverhampton trade counter for advice.
| Product Code | DHI-ASC2204C-S |
|---|---|
| Brand | Dahua |
| Device Type | Access Controller |
| Product Type | Access Control |
| Interface | 5 x RS485 ports, 4 x Wiegand ports |
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