Name: Dahua ASC2204C-D Multi-Door TCP/IP Access Controller – 100,000 Users &amp; 4-Door Two-Way Support
Brand: Dahua
SKU: ASC2204C-D
Price: 450.00 AUD
Availability: InStock

The Dahua DHI-ASC2204C-D is a robust multi-door access control panel designed for large-scale or high-security installations. It combines substantial user and event capacity, flexible reader interfaces, multiple authentication methods, and advanced alarm/anti-tamper functions in one unit.

Key features include:

Supports up to 100,000 users and 500,000 card-swipe records, plus 3,000 fingerprints.
Interfaces: 8× RS-485 card readers, 8× Wiegand card readers; networked via 10/100 Mbps Ethernet (TCP/IP).
Authentication modes include card, password, fingerprint; also supports group combinations.
Multiple security features: anti-passback, tamper alarm, duress alarm, door unlock timeout, intrusion alarm, “illegal card threshold” alarm, remote unlock, invalid-card thresholds.
Support for reader tamper, holiday & period scheduling (128 periods each), user groups (e.g. VIP, patrol, guest, blocklist), blocklist/allowlist functionality.
Reliable operation: built-in real-time clock, manual & automatic time sync, data preserved in power loss; watchdog mechanism for stability.
Power: AC 100-240 V; standby consumption ≤ 0.8 W; working ≤ 39.6 W.
Physical/environmental rating: indoor installation; IP20, IK04; operates from –30 °C to +60 °C; humidity 5-95% non-condensing.

Use Cases

Large Office / Corporate Buildings
For controlling multiple doors with many users (employees, contractors), handling visitor flow, and keeping detailed access logs.
Residential Complexes / Gated Communities
When multiple entrances / gates need monitoring and control, and where different user types (residents, guests, service personnel) need differentiated access.
Industrial / Factories
To regulate access to restricted zones (production, lab, warehouse) and enforce anti-passback to prevent tailgating or card sharing.
Educational Institutions
Schools, universities where many users, temporary access, and scheduled access (e.g. different hours on holidays) are needed.
Government / Public Sector / Financial Buildings
High security needed: duress alarms, tamper detection, thresholds for invalid card use etc.
Multi-tenant / Multi-use Facilities
Mixed use buildings: retail + offices + residential, where different zones have different rules, access schedules, etc.

Frequently Asked Questions (FAQs)

Question	Answer
How many doors / readers can this controller handle?	It supports up to four doors (with 4 lock outputs, 4 door status inputs) for two-way control. In addition, there are 8 RS-485 and 8 Wiegand reader ports for greater flexibility.
What types of authentication are supported?	Card (various readers via Wiegand or RS-485), password, fingerprint. Also, authentication combinations (e.g. card + password) are supported for higher security.
What is anti-passback and why is it useful?	Anti-passback ensures that once someone enters via a door, they must exit via the same door (or specified door) before re-entering—helps prevent card sharing or unauthorized tailgating.
Can it handle scheduled access / holidays?	Yes. There are 128 period lists and 128 holiday period entries to define when doors are accessible or locked out.
What happens during a power failure?	The system preserves data permanently so records and user data are not lost. Also, door unlocking and other critical functions can be managed via backup battery / power strategies if implemented.
What alarm / tamper or security protections does it offer?	It includes tamper (reader tamper) alarms; duress alarms; door unlock timeout; intrusion detection; alarm for invalid cards exceeding thresholds; also, remote unlock and reader tamper detection.
How many fingerprints can it store?	Up to 3,000 fingerprints. (Useful for facilities that require both fingerprint and card / face options.)
What environmental conditions can it handle?	Indoor only; temperature range –30 °C to +60 °C; humidity 5% to 95% non-condensing; protection ratings: IP20 / IK04.
Does it support firmware upgrades / remote management?	Yes. It supports online upgrades. There’s network communication (TCP/IP), and features like remote verification, remote unlock.

SKU: ASC2204C-D Categories: Access Control, Dahua Access Control