Verkada AC42 | Four Door Cloud-Connected Access Controller

AC42 Door Controller

An easy-to-install and manage four-door controller for cloud-control of doors, auxiliary devices and integration with your fire alarm interface.

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AC42 Four-Door Controller

The AC42 Four-Door Controller brings plug-and-play simplicity to enterprise-grade access control. The AC42 supports existing door hardware and card readers while enabling cloud-based visibility into your building's doors and access events. Integration with building fire alarm interface (FAI) systems and auxiliary devices allows organizations to connect with existing infrastructure for seamless deployments.

Key features

Instant video integration and insights
Fire alarm interface support
Cloud-based software and management
Works with existing cards and readers

Cloud-managed access controller

Built from the ground–up, the AC42 provides security without the complexity. Available in a versatile four-door form factor, the AC42 provides the best of on-prem security and cloud-based scalability.

Simple to manage

Cloud–managed controller configures instantly and updates automatically. No patching, manual updates or IT overhead required.

Always reliable, at scale

On-device compute, storage and backup battery power source ensures uninterrupted door functionality, regardless of internet or power connectivity.

Centralized management

Manage doors, permissions and users from anywhere with Verkada Command. No on-prem servers or databases required.

Increased visibility and control

Native integration with Verkada Cameras, Guest, Sensors and more provides unparalleled visibility across your organization.

Access simplified

Built from the ground up for simple installation and management

One unit, 4 door inputs, two AUX ports, and an FAI connection

All-in-one access control unit - no servers, clients or databases required

Thoughtful design simplifies installation and maintenance

Frequently asked questions

What is included with the AC42?
The AC42 is an all-in-one access control unit that is designed to work with all standard door hardware and most readers. The AC42 allows customers to upgrade their system to Verkada by simply replacing their existing Access Control panels. Every component of the AC42 is designed to make it faster for installers to connect doors and enable customers to better manage and troubleshoot doors across their organization. A backup battery is also available to power the unit in the event of power loss.

What are the benefits of the AC42?
With the Verkada AC42, users can bring plug–and–play simplicity to managing doors and access across their organization. The AC42 access controller works with your building’s existing door hardware, readers, fire alarm systems, as well as Verkada card readers. Once doors are connected, all doors are ready to be managed from any device via Verkada Command.

Does the AC42 work if there is a power or internet outage?
The AC42 is built on Verkada’s hybrid cloud architecture, balancing the best of on-device security with the scalability and connectivity of the cloud. The AC42 features storage and compute capabilities, and securely caches all events, settings, and door lock schedules on-device. In the event of an internet outage, the device will continue to function. Additionally, you can deploy the AC42 with the ACC–BAT–4A to power all connected doors – both wet or dry – in the event of a power outage.

How does the AC42 integrate with other Verkada products?
Verkada’s AC42 integrates natively with other Verkada products including Cameras, Alarms and Intercom. With the AC42, you can natively pair doors and security cameras to instantly get video security context on all access events including badge scans, door opens, and door tampering. With Verkada Alarms, you can trigger building lockdowns in response to alarm triggers like panic buttons. With Intercoms, you can receive intercom calls and unlock doors from Command, the Verkada Pass app and the Verkada Desk Station.

What hardware do I need to secure my buildings?
With Verkada Access Control, the only hardware you need is an access controller such as the AC42 or our 16-door AC62, and door locking / unlocking hardware such as maglocks, card readers and wireless door locks. Once connected, you can manage building access, schedules, and users directly in Verkada Command – no additional servers, databases or configurations needed.

Product specifications

Datasheet Install guide

Power and network

Power consumption
60W maximum
AC power input
100-240VAC
50/60Hz
1.5A maximum
Inputs
2x REX dry inputs per door
1x DPI dry input per door
2x auxiliary dry inputs
AUX power
1x 12V @ 250mA
Connectivity
Ethernet: 100/1000Mbps RJ-45 for network connection
USB 2.0
Reader and relay ports
Readers
1x reader port (Verkada/RS-485 or Wiegand) per door
Reader current consumption must be < 250mA per reader
Note: max of 4 readers can be powered simultaneously
Relay outputs
1x wet or dry relay per door
Wet relay switch-selectable power: