Installing/Registering the DR20

Topics included in this article:

• Overview
• Installation
  • Wiring Requirements and Diagrams
• Registration
• Edit Name and Location
• Rebooting the DR20
• NFC Antenna
• Helpful Links
• Contact Support or Sales

Note: DR20 User Manual

Overview

The DR20 is a Rhombus Access Control Reader. This device allows user entry to a secured location via mobile app credentials (NFC), wave to unlock, or physical key cards. The badge reader is on the secure side of the door, allowing access to the secured area. 

Installation

• Communication: the DR20 communicates with the DC20 over RS-485 through OSDP.
• Note: Existing cables can be reused if they meet the minimum required AWG. Wiring methods used shall be in accordance with the National Electric Code, ANSI/NFPA 70.

Figure 1. RS-485 Wires

Wiring Requirements and Diagrams

• Power (V+/V-): solid or stranded, minimum 18 AWG, 300 ft max run.
• Data (A/B/GND): solid or stranded, twisted pair, minimum 24 AWG, 300 ft max run.

Note: We recommend consulting the appropriate federal, state, and local authorities for any relevant regulations at the time of installation.

Registration

After ensuring the DC20 has a stable network connection, the DR20 will auto-register to your Rhombus console once it's connected to the DC20.

Edit Name and Location

1. Navigate to the "Devices" page, and click the "Badge Readers" tab. 

2. Click the three dots to the right of the DR20 you wish to edit.

3. Select the setting(s) you wish to update. 

Rebooting the DR20

1. Navigate to the "Devices" page, and click the "Badge Readers" tab. 

2. Select the three dots to the right of the DR20 you wish to reboot.

3. Click "Reboot Badge Reader."

NFC Antenna

When using a key card with the DR20, hold the card over the NFC antenna, as shown below, to ensure the credential is read properly.

Helpful Links

• Rhombus Access Control Deployment Guide and Best Practices 
• Wave to Unlock
• Rhombus Key App Walkthrough
• Registering a Key Card (Access Control Credentials)

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.