Dahua DHI-ASC2204B-S - 4-Door 1-Way Networked Access Controller
Product Features
- 4-door, 1-way networked access controller
- Supports up to 100,000 users, 100,000 cards, 100,000 passwords and 3,000 fingerprints
- 5 x RS-485 ports and 4 x Wiegand ports for reader/peripheral connections
- Anti-passback, multi-person unlock, first-card unlock, remote verification, fire alarm linkage
- DC12V or PoE power supply
Dahua DHI-ASC2204B-S — 4-Door Networked Access Controller
The DHI-ASC2204B-S is a 4-door, 1-way networked access controller — the control panel that manages door locks and readers, not a reader itself. It supports up to 100,000 users, 100,000 passwords, 100,000 cards, 3,000 fingerprints and 500,000 records, with 5 x RS-485 ports and 4 x Wiegand ports for connecting readers and other peripherals.
Who is it for?
This controller sits at the heart of a Dahua access control installation, connecting to separate card readers, fingerprint readers or keypads via its Wiegand and RS-485 ports rather than reading credentials itself. It suits sites needing centralised control of up to four doors, with anti-passback, multi-person unlock, first-card unlock and remote verification for higher-security applications, plus fire alarm linkage to release doors automatically in an emergency.
Key specification
| Function | 4-door, 1-way networked access controller |
|---|---|
| Capacity | 100,000 users, 100,000 passwords, 100,000 cards, 3,000 fingerprints, 500,000 records |
| Interfaces | 5 x RS-485 ports, 4 x Wiegand ports, 1 x 10/100 Mbps network port |
| Alarm I/O | 1-channel alarm input, 1-channel alarm output |
| Access features | Anti-passback, multi-person unlock, first-card unlock, remote verification, multi-door interlock |
| Safety | Fire alarm linkage, tamper, duress, door sensor timeout, intrusion detection |
| Power supply | Standard PoE or DC 12V |
| Protection | IP20, IK04 |
| Dimensions | 210 x 106 x 50mm |
What you will need
- A compatible card, fingerprint or QR reader per door (the ASC2204B-S is a controller, not a reader)
- Electric door locks and power supply for each of the 4 doors
- Cards, fobs or fingerprints to enrol for the users you want to grant access
Frequently asked questions
Is the ASC2204B-S a card reader?
No. It is a networked access controller — the panel that manages the doors and locks. You will need separate card or fingerprint readers wired to it via its Wiegand or RS-485 ports.
How many doors can it control?
Up to 4 doors in a 1-way (single direction) configuration.
Can it be powered over the network?
Yes, it accepts standard PoE or DC12V power.
Browse the full Dahua range or see more Access control equipment. Need help specifying a system? Contact us on 01902 902251 or visit our Wolverhampton trade counter.
| Product Code | DHI-ASC2204B-S |
|---|---|
| Manufacturer | Dahua |
| Power | PoE or DC12V |
TECHNICAL SUPPORT
We provide tailored support for you and your CCTV system.
3 YEAR WARRANTY
Many of our Cameras and Recorders come with a comprehensive 3 year warranty.
COME & VISIT US
We've got a fully functioning show room and IP suite to show you exactly how our CCTV equipment works
FREE DELIVERY OVER £ 149.99
As cheap as £10, orders placed before 2:30pm are dispatched for delivery within 1–2 working days!
