AXIS A9920 I/O Relay Expansion Module, 16 I/Os, 16 Relays, 03504-001
Description
AXIS A9920 I/O Relay Expansion Module – 16 I/Os and 16 Relays
The AXIS A9920 is a compact, high-density I/O relay expansion module with 16 supervised I/Os and 16 dry Form C relays, designed for the AXIS A9210 Network I/O Relay Module and Axis network door controllers. It suits space-limited and retrofit jobs such as elevator access control, data center cabinet security and door monitoring. With multi-drop technology, one AXIS A9210 supports up to 128 I/Os and 64 relays over a single IP connection.
Key Specifications
| I/Os | 16 configurable inputs and outputs, supervised (4 states) |
| Relays | 16x Form C, NO/NC, dry only |
| Relay rating | Max 4 A at 12 V DC, or 2 A at 30 V DC |
| Expansion bus | Multi-drop; 128 I/Os and 64 relays or 16 modules |
| Power input | 12-24 V DC, max 30 W (no PoE) |
| DC output | 12/24 V DC, max 25 W (max 6 W from AXIS A9210) |
| Communication | AES-128 encrypted |
| Operating temperature | -40 °C to 55 °C (-40 °F to 131 °F) |
| Casing / mounting | Steel; wall or DIN rail mount |
| Weight | 715 g (1.6 lb) |
| Approvals | UL 294, UL 2043; TAA compliant |
Full specifications are listed in the Detailed Specifications tab.
Why Choose the AXIS A9920?
- 16 supervised I/Os and 16 relays in one compact module
- Dry Form C relays rated up to 4 A at 12 V DC
- Built for elevator, data center cabinet and door monitoring projects
- Chains with AXIS A9210 for up to 128 I/Os and 64 relays
- Wall, cabinet or DIN rail mounting, vertical, horizontal or blade style
- Secure element (CC EAL 6+), secure boot and AES-128 encrypted communication
- UL 294 listed and TAA compliant
16 Supervised I/Os and 16 Dry Relays
The 16 I/Os accept 0-30 V DC inputs that can be supervised in four states with programmable 1 K, 2.2 K, 4.7 K or 10 K end-of-line resistors, or act as open drain outputs up to 100 mA. The 16 Form C relays are dry contacts rated max 4 A at 12 V DC or 2 A at 30 V DC. Need wet relays or Modbus sensor ports? Axis points to the AXIS A9910 for those.
Elevators and Data Center Cabinets
High relay density makes the A9920 a fit for elevator floor control and for securing data center cabinets, where many locks or floor buttons must be switched from one place. It also integrates with video, alarm, intrusion, access control and building management systems for a more unified view of security events.
Multi-Drop Expansion
Expansion IN and OUT ports daisy-chain modules over one shielded twisted pair, qualified up to 1000 m (3281 ft). One AXIS A9210 can host up to 16 expansion modules, for 128 I/Os and 64 relays behind a single network connection, so there is no need for a network drop at every module.
Flexible Installation
The steel module mounts on a wall with the AXIS TA9001 Wall Mount Bracket or on a DIN rail with the AXIS TA1901 clip, vertically, horizontally or in blade installations. For outdoor sites, Axis lists the AXIS TQ1808-VE and T98A15-VE cabinets. Detachable, color-coded terminal blocks speed up wiring, and the AXIS TA9901 Cable Strain Relief keeps cables secure.
Typical Applications
- Elevator access control for high floor counts
- Data center cabinet lock control
- Door monitoring across many doors
- Retrofit projects with limited panel space
- High-density alarm and intrusion inputs
Compatible Products
Compatible AXIS products available at Affinitech Store:
- AXIS A9210 Network I/O Relay Module
- AXIS A1210 Network Door Controller
- AXIS A1610 Network Door Controller
- AXIS A1210-B Network Door Controller
- AXIS A1610-B Network Door Controller
- AXIS A1710-B Network Door Controller
- AXIS A1810-B Network Door Controller
- AXIS TA9001 Wall Mount Bracket (10-pack)
- AXIS TA1901 DIN Rail Clip (10-pack)
- AXIS TA9901 Cable Strain Relief (5-pack)
- AXIS TQ1808-VE Surveillance Cabinet
- AXIS T98A15-VE Surveillance Cabinet
- AXIS I/O Indication LED (4-pack)
- AXIS 4-in-1 Security Screwdriver Kit
Compare AXIS I/O Relay Modules
| Model | I/Os / relays | Type | Best for |
|---|---|---|---|
| AXIS A9210 | 10 I/Os, 1 relay; hosts up to 16 expansion modules | PoE network I/O relay module | Adding I/O to Axis or third-party systems |
| AXIS A9910 | 8 I/Os, 4 wet or dry relays, 4 Modbus ports | Expansion module for AXIS A9210 | Sensors, elevator control |
| AXIS A9920 (this module) | 16 I/Os, 16 dry relays | High-density expansion module | Elevators, data center cabinets |
| AXIS A9188 | 8 I/Os, 8 relays | Earlier-generation network I/O relay module | Existing A9188 systems |
| AXIS A9188-VE | 8 I/Os, 8 relays | A9188 in an outdoor surveillance cabinet | Outdoor and vandal-prone sites |
Explore More
- Browse all Network I/O Relay Modules at Affinitech Store
- Shop Network Door Controllers at Affinitech Store
- See the full Access Control collection
- More from AXIS
Frequently Asked Questions About AXIS A9920
What is the AXIS A9920 used for?
It expands an AXIS A9210 or an Axis network door controller with 16 I/Os and 16 relays, for applications such as elevators, data center cabinets and door monitoring.
How many I/Os and relays does it have?
16 configurable inputs/outputs and 16 Form C relays.
Are the relays wet or dry?
Dry only. Each relay is rated max 4 A at 12 V DC or 2 A at 30 V DC. The AXIS A9910 is the Axis option for wet relays and Modbus.
How is it powered?
By 12-24 V DC, max 30 W. It also has a 12/24 V DC output of up to 25 W, or up to 6 W when powered from an AXIS A9210.
Which Axis products is it compatible with?
Axis lists the AXIS A9210 and the A1210, A1210-B, A1610, A1610-B, A1710-B and A1810-B network door controllers.
How far can the expansion bus run?
The EXP In/Out connection uses one shielded twisted pair and is qualified for up to 1000 m (3281 ft).
How many modules can one A9210 handle?
Up to 16 expansion modules, for up to 128 I/Os and 64 relays over one IP connection.
Which VMS supports it?
AXIS Camera Station Edge, AXIS Camera Station Pro, AXIS Camera Station 5 and partner VMS.
What is the operating temperature range?
-40 °C to 55 °C (-40 °F to 131 °F); up to 70 °C conditionally, with current through the relays max 2 A.
What warranty does it have?
A 5-year Axis warranty.
Detailed Specifications
AXIS A9920 Specifications
| Specification | Details |
|---|---|
| Product | |
| Product | AXIS A9920 I/O Relay Expansion Module |
| Type | I/O relay expansion module |
| Configurable I/Os | |
| I/O | 16x I/O, configurable inputs and outputs |
| Digital input | 0 to max 30 V DC, possible to supervise between 0-12 V (4 states) |
| End-of-line resistors | Programmable: 1 K, 2.2 K, 4.7 K and 10 K, 1%, 1/4 watt standard |
| Digital output | Open drain, 0 to max 30 V DC, max 100 mA |
| Relays | |
| Relays | 16x form C relay, dry only, NO/NC |
| Relay rating | Max 4 A at 12 V DC, or 2 A at 30 V DC |
| Expansion Interface | |
| Expansion | Expansion IN and Expansion OUT, multi-drop; qualified for 128 I/Os and 64 relays or 16 expansion modules |
| Power | |
| DC in | 12-24 V DC, max 30 W |
| DC out | 12/24 V DC, jumper configurable, max 25 W; max 6 W when powered from AXIS A9210 |
| Connectors | |
| Wire size | CSA: AWG 28-16, CUL/UL: AWG 30-14 |
| Terminal blocks | DC power, inputs/outputs, relay; detachable and color coded connectors for ease of installation |
| Cable Requirements | |
| DC power | AWG 18-16, qualified for up to 3 m (10 ft) |
| AUX power | AWG 18-16, qualified for up to 200 m (656 ft) |
| I/Os as inputs | AWG 24-16, qualified for up to 200 m (656 ft) |
| EXP In/Out | 1 twisted pair with shield connected to protected ground, 120 ohm impedance, AWG 24-16, qualified for up to 1000 m (3281 ft) |
| System Integration | |
| Video management systems | AXIS Camera Station Edge, AXIS Camera Station Pro, AXIS Camera Station 5 and video management software from Axis Application Development Partners |
| Tamper detection | Tilting, vibration |
| Approvals | |
| Product markings | CE, RCM, UKCA, UL/cUL, VCCI, WEEE |
| Supply chain | TAA compliant |
| EMC | CISPR 35, CISPR 32 Class A, EN 55032 Class A, EN 55035, EN 50130-4, EN 61000-6-1, EN 61000-6-2; Australia/New Zealand: RCM AS/NZS CISPR 32 Class A; Canada: ICES-3(A)/NMB-3(A); Japan: VCCI Class A; Korea: KS C 9835, KS C 9832 Class A; USA: FCC Part 15 Subpart B Class A |
| Safety | CAN/CSA C22.2 No. 62368-1 ed. 3, IEC/EN/UL 62368-1 ed. 3, RCM AS/NZS 62368.1:2022, UL 2043, UL 294 |
| Environment | IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-6, IEC 60068-2-14, IEC 60068-2-27, IEC 60068-2-78 |
| Cybersecurity | |
| Edge security | Software: signed firmware. Hardware: secure element (CC EAL 6+), secure keystore, secure boot |
| Communication | Encryption: AES-128 |
| Documentation | Axis Vulnerability Management Policy, Axis Security Development Model |
| General | |
| Casing | Steel |
| Color | White NCS S 1002-B |
| Mounting | Wall mount, DIN rail mount |
| Operating conditions | -40 °C to 55 °C (-40 °F to 131 °F); conditional maximum temperature 70 °C (158 °F) with current through relays max 2 A; humidity 10-85% RH (non-condensing) |
| Storage conditions | -40 °C to 70 °C (-40 °F to 158 °F); humidity 5-95% RH (non-condensing) |
| Weight | 715 g (1.6 lb) |
| Box Content | |
| Included | Expansion module, installation guide, connector kit (mounted), grounding kit |
| Optional Accessories | |
| Optional accessories | AXIS TA1901 DIN Rail Clip, AXIS TA1902 Mk II Access Control Connector Kit, AXIS T98A15-VE Surveillance Cabinet, AXIS TQ1808-VE Surveillance Cabinet, AXIS TA9001 Wall Mount Bracket, AXIS TA9901 Cable Strain Relief |
| System Tools | |
| Tools | AXIS Site Designer, AXIS Device Manager, product selector, accessory selector |
| Languages | |
| Languages | English, German, French, Spanish, Italian, Russian, Simplified Chinese, Japanese, Korean, Portuguese, Polish, Traditional Chinese, Dutch, Czech, Swedish, Finnish, Turkish, Thai, Vietnamese |
| Sustainability | |
| Substance control | PVC free; RoHS in accordance with EU RoHS Directive 2011/65/EU and EN 63000:2018; REACH in accordance with (EC) No 1907/2006 |
| Materials | Screened for conflict minerals in accordance with OECD guidelines |
| Warranty | |
| Warranty | 5-year warranty |