Dahua DHI-ASC3202B 2-Door Network Access Controller with PoE, Fire Alarm Linkage & 1,000-User Capacity

Product SKU: DHI-ASC3202B

Product Overview

The Dahua DHI-ASC3202B is a web-based network access controller configurable for one door with entry and exit readers or two doors with one-way reader control. Main-control mode provides a built-in management platform for up to 1,000 users and can coordinate as many as 19 sub-controllers, while sub-controller mode supports larger local user and card capacities under a compatible platform. The controller connects compatible readers through Wiegand and RS-485, provides two lock outputs, two exit-button inputs, two door-status inputs and two alarm input/output channels, and supports fire-safety door linkage. Power is supplied through 12V DC or IEEE 802.3at PoE, with an integrated 12V output available for compatible locks and readers.

Key Capabilities

Best For

• One- or Two-Door Systems: Supports one door with entry and exit readers or two doors with one reader direction per door.
• Web-Managed Access: Main-control mode provides local browser-based management for users, permissions, devices, events and alarms.
• Scalable Commercial Sites: One main controller can manage up to 19 sub-controllers for larger door networks.
• PoE-Powered Installations: IEEE 802.3at PoE can power the controller and a calculated load of compatible peripherals.
• Fire-Alarm Integration: Configured alarm inputs can place linked doors into an always-open condition during a fire event.

Why Choose the DHI-ASC3202B

The DHI-ASC3202B combines flexible door configuration, local web management and scalable main or sub-controller operation in a compact indoor enclosure. It supports card, fingerprint, password, Bluetooth, remote and combination unlocking through compatible readers, while advanced functions such as first-card unlock, multi-person authentication, anti-passback and multi-door interlock suit more controlled commercial workflows. Integrated PoE, lock power, alarm I/O and downloadable wiring diagrams can simplify system planning, although every peripheral load must remain within the applicable power budget. Supplied by Security Wholesalers, this controller should be selected as part of a complete design covering readers, locks, emergency egress, fire linkage and network security.

Buyer Decision Tips

Key Features & Technical Specifications

Model	DHI-ASC3202B
Product Type	Web-based indoor network access controller.
Door Configuration	1 door with two-way reader control, or 2 doors with one-way reader control.
Control Modes	Main controller or sub-controller.
Main-Controller Scale	Manages up to 19 sub-controllers.
Main-Mode User Capacity	1,000 users.
Sub-Mode User Capacity	10,000 users.
Main-Mode Card Capacity	5,000 cards.
Sub-Mode Card Capacity	50,000 cards.
Fingerprint Capacity	3,000.
Bluetooth Card Capacity	5,000.
Record Capacity	300,000.
Unlock Methods	Card, remote, password, fingerprint, Bluetooth and combination unlock.
User Types	General, VIP, guest, patrol, blocklist and other supported user types.
Access Schedules	128 period lists and 128 holiday periods.
Authentication Functions	Multi-user authentication, multi-factor authentication, first-card unlock and combination unlock.
Advanced Access Functions	Global anti-passback, multi-door interlock, global alarm linkage, blocklist and allowlist.
Peripheral Readers	2 × RS-485 card readers and 2 × Wiegand card readers.
RS-485 Interfaces	3.
Wiegand Interfaces	2 × inputs.
Network Port	1 × RJ45 10/100Mbps Ethernet.
Network Protocols	P2P, IPv4, DNS, DDNS, TCP and UDP.
Interoperability	ONVIF, CGI, SDK and API support.
Alarm Inputs	2 digital inputs.
Alarm Outputs	2 digital outputs.
Alarm Linkage	Supported, including local and global door or alarm-output actions.
Fire-Safety Linkage	Can set linked doors to always open when the configured fire alarm is triggered.
Exit-Button Inputs	2.
Door-Status Inputs	2.
Lock-Control Outputs	2.
Alarm Events	Tamper, duress, door-sensor timeout, intrusion, excessive illegal-card attempts and duress fingerprint.
Power Input	12V DC or IEEE 802.3at Type 2 Class 4 PoE.
Lock Power Output	12V DC, maximum 1,000mA as specified by Dahua.
DC Peripheral Power Budget	1,700mA at 12V for locks, readers and supported peripherals.
PoE Peripheral Power Budget	1,200mA at 12V for locks, readers and supported peripherals.
Standby Power	No more than 2W without peripheral devices.
Data Retention	Stored data retained when powered off.
Configuration	Built-in web server, real-time monitoring, network update and downloadable hardware I/O diagrams.
Casing Material	Flame-retardant PC and ABS.
Impact Protection	IK06.
Operating Environment	Indoor.
Operating Temperature	–10 °C to +55 °C.
Operating Humidity	5%–95% RH, non-condensing.
Installation	Surface mount or guide-rail mount.
Product Dimensions	186.4 × 185.8 × 58.3mm.
Packaging Dimensions	254 × 243 × 86mm.
Gross Weight	0.99kg.
Certifications	CE, FCC and UL.

Ideal Use Cases

Choosing the Right Model

• Choose the DHI-ASC3202B if: You need one-door two-way or two-door one-way control, PoE and a built-in main-controller web platform.
• Choose a larger multi-door controller if: More than two door channels must be wired directly to one controller.
• Use main-control mode if: The controller must manage users and up to 19 sub-controllers through its embedded platform.
• Use sub-controller mode if: The device will be managed by another controller or a compatible central Dahua platform.
• Confirm reader protocol: Match Wiegand, RS-485 or supported OSDP settings to the selected readers and required security level.

FAQs

1. Can the Dahua DHI-ASC3202B control one door or two doors?
   The DHI-ASC3202B can be configured for one door with readers on both entry and exit, or two doors with one reader direction per door. It provides two lock-control outputs, two exit-button inputs and two door-status inputs. The chosen arrangement affects reader placement, anti-passback logic, egress hardware and wiring, so the complete door configuration should be planned before installation.
2. What does the 1,000-user capacity refer to?
   The stated 1,000-user capacity applies when the controller operates in main-control mode. In that mode, Dahua also lists 5,000 cards, 3,000 fingerprints, 5,000 Bluetooth cards and 300,000 records. When configured as a sub-controller, the published capacity rises to 10,000 users and 50,000 cards. Available credentials still depend on compatible readers, software and system configuration.
3. How does the fire-alarm linkage operate?
   The controller can use an alarm input to trigger configured door linkages. When fire-safety control is enabled, Dahua’s manual states that linked doors change to an always-open state when the fire alarm is triggered. This function does not replace a certified fire alarm panel, emergency-release hardware or compliant egress design. A qualified installer must coordinate the interface with applicable fire and building requirements.
4. Can the ASC3202B power electric locks and readers?
   Yes. The controller accepts 12V DC or IEEE 802.3at Type 2 Class 4 PoE and can provide 12V power to compatible locks. Dahua lists a maximum lock-output current of 1,000mA. The total peripheral budget is 1,700mA at 12V when DC-powered or 1,200mA at 12V when PoE-powered, covering connected locks, readers and other supported peripherals.
5. Which reader connections are supported?
   The DHI-ASC3202B supports two Wiegand reader inputs and two RS-485 card readers, with three RS-485 interfaces listed in total. Dahua’s current manual also describes supported OSDP reader configuration through the RS-485 reader connection. Reader credential technology, cable distance, current draw, encryption support and entry or exit direction must all be checked against the selected reader before commissioning.
6. What are main-control and sub-controller modes?
   Main-control mode includes a built-in web-based access-management platform and can manage up to 19 sub-controllers. Sub-controller mode allows the device to operate as a normal door controller under a main controller or a compatible management platform such as SmartPSS Lite or DSS Pro. Capacity and available central-management functions differ between modes, so the intended architecture should be selected during initial configuration.
7. Is the controller suitable for outdoor installation?
   No. Dahua specifies the controller for indoor use from –10 °C to +55 °C at 5%–95% non-condensing humidity. Its PC and ABS enclosure carries an IK06 impact rating, but no outdoor IP weatherproof rating is listed. Install it in a secure, dry, ventilated enclosure or protected indoor location away from condensation, conductive dust, direct weather and unauthorised physical access.
8. What should I confirm before ordering this access controller?
   Confirm whether the project needs one-door two-way or two-door one-way control, then select compatible readers, locks, exit buttons, door contacts, fire-alarm interface and power arrangement. Calculate the peripheral current against the DC or PoE budget and establish the required management mode. Security Wholesalers can assist with matching the controller to suitable Dahua readers and the overall door-access architecture.

Additional Information

Dahua DHI-ASC3202B Datasheet