AXIS A9920 I/O Relay Expansion Module
AXIS
Article code 03504-001
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Expansion module with 16 I/O ports and 16 Form C relays (dry only) for high-density I/O and relay expansion.
- 16 I/O ports
- 16 Form C relays
- High-density I/O expansion
Description AXIS A9920 I/O Relay Expansion Module
Important: Requires AXIS A9210 for security applications or an Axis Network Door Controller for access control. AXIS A9910 is optional for Modbus integration.
High-density I/Os with great scalability
Designed for high-density applications, this indoor expansion module works with Axis door controllers to support elevator access control, or in combination with AXIS A9210 Network I/O Relay Module and AXIS A9910 I/O Relay Expansion Module. Built on open standards, it enables easy expansion of physical access control capabilities and seamless integration with third-party systems such as VMSs, security, tamper detection, alarm, and intrusion systems. Each module provides 16 I/O ports, supporting 16 supervised inputs and 16 form C relay outputs.
Key Features:
- 16 I/O ports with supervised inputs and outputs
- 16x form C relay, dry application
- Supports up to 128 I/Os and 64 relays with one IP connection
- Designed to use with AXIS A9210 or Axis door controllers
Downloads
| Datasheet | Download |
| User manual | Download |
| Installation manual | Download |
| Product dimensions | Download |
Compatible products
Access control
Audio & I/O
Specifications
Product
| Model number | 03504-001 |
| Brand | AXIS |
| Category |
Other Products
Audio & I/O
|
| Weight |
1000 grams
|
|
Audio/IO
|
I/O Devices
|
|
Access Control
|
Access control accessories
|
|
Various
|
✓ |
|
Solutions by industry
|
Residential building
|
| Date published | 7/8/2026 |
| Predecessor | AXIS A9188-VE |