Rhombus DR20 and DR40 door readers showcasing sleek design and robust build. Advanced technology for managing visitors efficiently.

Cloud-managed Door Controllers Built for Modern Access Control

From a single room to an entire campus, secure every entrance with Rhombus Door Controllers. The DC10 and DC20 are built for enterprise scalability and pair seamlessly with Rhombus Cameras, Smart Sensors, and other access control products.

See Rhombus in Action

Choose the Right Door Controller for Your Space

Rhombus DC10 single door controller: cloud-managed, wet/dry relay, Ethernet or Wifi connectivity, works with existing hardware. 10-year warranty.

Door Capacity

1

PoE Input

Yes

PoE Passthrough

Yes

Connectivity Options

WiFi and Ethernet

Rhombus Sensor Network Compatible

Yes

Door and AUX Relays

1 Door Relay and 1 AUX Relay

Inputs

1 REX, 1 DPI, 2 AUX

Backup Power

-

Starting Price

$799

Rhombus DR40 door reader, featuring advanced access control card readers with an adjustable read range and vandal-resistant design. This smart door access solution enhances security while providing reliable performance for managing entry points.

Door Capacity

4

PoE Input

-

PoE Passthrough

-

Connectivity Options

Ethernet

Rhombus Sensor Network Compatible

-

Door and AUX Relays

4 Door Relay and 2 AUX Relay

Inputs

4 REX, 4 DPI, 1 AUX

Backup Power

Supports 12V SLA backup battery

Starting Price

$1,399

Access Control, Unified in One Complete Security Platform

Unite security cameras, smart sensors, and access control with AI-powered cloud-based software.

The Rhombus Advantage

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Easy and
Simple to Install

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Flexible for Any
Environment

Cloud management icon

Reliable and Intuitive
Cloud Management

Touchless entry icon

Enterprise
Reliability

Rhombus DR20 door card reader next to office door, providing employees seamless access and security benefits.

Door Controllers FAQs

Which Door Readers are compatible with Rhombus Door Controllers?

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Both the DC10 and DC20 support Rhombus Readers, certified third-party OSDP readers over RS-485, and third-party Wiegand readers. 

Can I power Rhombus door controllers with PoE?

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The DC10 supports PoE, PoE+, and PoE++ , giving you data and power over a single cable. The DC20 is powered via an included AC-to-12VDC adapter and does not support PoE.

Do Rhombus Door Controllers work during network outages?

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Yes. Both the DC20 and DC10 Rhombus Door Controllers are designed to still function during network outages. The DC10 and DC20 store credentials and schedules locally, so badge-in access keeps working even without a network connection. Remote unlock, credential/schedule updates from the console, and event syncing pause until connectivity returns, at which point cached events upload automatically. The DC20 has provisions for a 12 VDC SLA backup battery to sustain a power outage, while the DC10 can remain online with the addition of a UPS. 

Can I power other Rhombus devices with PoE Passthrough?

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PoE passthrough is only available with the DC10, not the DC20. The PoE passthrough allows you to connect and power nearby Rhombus Cameras and other devices through the DC10 up to IEEE 802.3af/at (PoE/PoE+). 

Can Rhombus Door Controllers be installed outdoors?

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No, Neither the DC10 nor DC20 can be installed outdoors. They are both intended for indoor installation only.