Dahua ASC2202B-S - 2-Door 1-Way Networked Access Controller
Product Features
- 2-door, 1-way networked access controller
- Supports up to 100,000 users, 100,000 cards and 3,000 fingerprints
- 5 x RS485 ports and 4 x Wiegand ports for reader/peripheral connections
- 4-channel alarm input and 4-channel alarm output with fire alarm linkage
- Anti-passback, multi-person unlock, first-card unlock and remote verification
- DC12V or PoE power supply
Dahua ASC2202B-S — 2-Door Networked Access Controller
The Dahua ASC2202B-S is a 2-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 RS485 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 RS485 ports rather than reading credentials itself. It suits sites needing centralised control of up to two doors, with support for anti-passback, multi-person unlock, first-card unlock and remote verification for higher-security applications. Fire alarm linkage means it can integrate with a building's fire system to release doors automatically in an emergency.
Key specification
| Function | 2 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 RS485 ports, 4 x Wiegand ports |
| Alarm I/O | 4 channel alarm input, 4 channel alarm output |
| Access features | Anti-passback, multi-person unlock, first-card unlock, remote verification |
| Safety | Fire alarm linkage |
| Power supply | DC12V / PoE |
What you will need
- A compatible card reader or fingerprint reader per door (the ASC2202B-S is a controller, not a reader)
- Electric door locks and power supply for each door
- Cards, fobs or fingerprints to enrol for the users you want to grant access
- A network connection for remote management and monitoring
Frequently asked questions
Is the ASC2202B-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 RS485 ports.
How many doors can it control?
It manages up to 2 doors in a 1-way (single direction) configuration.
Can it be powered over the network?
Yes, it accepts DC12V power or Power over Ethernet (PoE).
Does it work with fire alarm systems?
Yes, it includes fire alarm linkage so doors can be released automatically in an emergency.
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 | ASC2202B-S |
|---|---|
| Manufacturer | Dahua |
| Interface | 5 x RS485, 4 x Wiegand |
| Power | DC12V / PoE |
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