DR40 Connected to a Wired Doorbell

In this article, we will talk about a couple of options for utilizing the DR40s

• Overview
• NH CHM1 Diagram
• NICOR EDC Diagram
• Helpful Links
• Contact Support or Sales

Overview

The DR40 features a built-in Normally Open (NO) relay that can handle up to 30 VAC/DC, with a maximum current of 1A. This makes it compatible with most traditional off-the-shelf door chimes powered by transformers within this range.

To ensure compatibility, partners should double-check the transformer specifications to confirm the power requirements. We recommend trusted brands like NICOR and Newhouse Hardware, available through Home Depot and Amazon. We have experience using the Nicor Wired Single Gang Chime and Newhouse CHM3D. Please note that installation may require the expertise of an electrician or licensed installer, depending on local regulations.

Wiring diagram of DR40 to the NH CHM3D Doorbell

Wiring diagram of DR40 to the NICOR EDC Doorbell

Helpful Links

• Installing/Registering DR40
• Rhombus Access Control Deployment Guide and Best Practices
• DC20 Overview

Contact Support or Sales

Have more questions? Contact Rhombus Support at +1 (877) 746-6797 option 2 or support@rhombus.com.

Interested in learning more? Contact Rhombus Sales at +1 (877) 746-6797 option 1 or sales@rhombus.com.