Installing/Registering the DR40

In this article, we'll cover the following:

• About the DR40
• Installation
  • Wiring Requirements and Diagrams
• Registration
  • With the DC20
  • For Standalone Use
    • Bluetooth Registration
    • QR Code Registration
• Setting Up Doorbell Notifications
  • Creating a Doorbell Rule
  • Deleting a Doorbell Rule
• Helpful Links
• Contact Support or Sales

Note: The DR40 User Manual

About the DR40

The DR40 is Rhombus' five-in-one combination of a reader, camera, button, and audio device. It also has a relay that can be used with a Doorbell Rule. This powerful device allows you to enter secured locations via mobile app credentials (NFC), wave to unlock (BLE), or physical key cards.

The device contains a camera where you can view footage via the Rhombus Console and it can also be used as an intercom to communicate with guests or delivery drivers.

As a standalone device, the camera, intercom system, and button (doorbell) can be used, without the need for connecting to a DC20 for badge reader functionality. 

Installation

• Communication: the DR40 communicates with the DC20 over RS-485 using OSDP.
• Power (V+/V-): solid or stranded, minimum 18 AWG, 300 ft max run.
  • If PoE is used to power the DR40, V+/V- won't be used. To connect the DR40 to your network, you can run Cat5/6 directly to a PoE switch or through a PoE injector and connect it via Wi-Fi.
  • Power to the reader can be supplied using POE or a 12-28VDC external power source. DR40 has a maximum current rating of 791 mA at 12VDC, so should not be powered directly by the DC20. 

Wiring Requirements and Diagrams

• Data (A/B/GND): solid or stranded, twisted pair, minimum 24 AWG, 300 ft max run.
• Other: (COM/NO): solid or stranded, minimum 24 AWG, 300 ft max run.
• Note: Existing cables can potentially be re-used if they meet the minimum required AWG. Wiring methods used shall be in accordance with the National Electric Code, ANSI/NFPA 70. 

For more details, please reference the DR40 full manual found in the Rhombus Access Control Deployment Guide and Best Practices article. 

• The DR40 communicates with an Access Controller (DC20) over RS-485 and uses the OSDP Protocol. It will be wired into the RS-485 ports on the DC20.
• Connect the [A], [B] and [GND] lines of the D420 to the corresponding terminals in the DC20.
• *NOTE: We recommend you consult the appropriate federal, state, and local authorities for any relevant regulations at the time of installation. 

• Power can be supplied through POE. If PoE is not used, an Ethernet connection is required.

• Power can also be supplied using a 12-28VDC external power source.

• The DR40 also comes equipped with one dry contact normally open relay that can be used to control devices externally powered devices such as door chimes or lights rated up to 30VDC/DC, 1A max.

Registration

The DR40 can be used combined with the DC20 or as a standalone product. As such, there are two different methods that can be used to register the device, depending on how it will be used. 

With the DC20

The DR40 will auto-register to your Rhombus console once it's connected to a DC20, assuming that the DC20 has a stable connection to the network.

Also ensure that in the Rhombus console the "Auto-register Readers" is toggled on. This should be toggled on by default.

For Standalone Use

Once the DR40 has been installed correctly, the next step is to register the device through the Rhombus mobile app via Bluetooth or via QR Code.

Bluetooth Registration

1. Open Rhombus mobile app and go to Register Devices.

2. Select "Register via Bluetooth."

3. Select the location where you want to register the device.

4. Select DR40 from the device list that you are trying to register.

5. Click next after selecting the DR40 you are trying to register and choose the Ethernet connection.

6. Make sure the Use DHCP button is toggled, and click next.

7. The next screen will be the final registration step.

QR Code Registration

1. Open Rhombus mobile app and go to Register Devices.

2. Go to Register via QR Code.

3. Select the location where you want to register the device.

4. Next aim the displayed QR code at the camera lens on the DR40. You should hear a couple of clicks.

Setting Up Doorbell Notifications

It's important to note that our doorbell sound is intentionally designed to be attention-grabbing without being disruptive. It serves to alert nearby individuals promptly, even if they're not actively monitoring the device. Please note that the volume is currently set to the maximum allowable level, and unfortunately, further adjustments aren't possible.

However, we do have a few options that can assist:

• Connect the device that is monitoring for notifications (an iPad etc.) to an external speaker to boost the sound of the notification.
  Please note: When using an iPad or other device, the sound associated with a doorbell notification will only play if you are actively watching the specific door whose bell is rung.
• You can connect the DR40 Door Reader to an doorbell chime to boost volume on the doorbell press. Please see this article on Connecting a DR40 to a Wired Doorbell for more information.

The DR40 has a button that can be used as a doorbell. Doorbell events can be set up in two ways:

• A Doorbell Rule can be created on the DR40 devices page and then configured in User Notifications. 
• A policy can be assigned that has "Doorbell Press" as a part of the policy, and then configured in User Notifications. 
  • For more information on creating policies, please visit the Creating and Assigning Alert Policies article. 

Creating a Doorbell Rule

A Doorbell Rule can provide several different actions on button press:

• Generate Notification​
  • Generates an instant notification that will not be associated with any clips to reduce the time taken. Notifications for these can be configured under the "Manage Notifications" section in Settings by selecting the Video Intercom / Badge Reader dropdown and clicking "Doorbell Pressed."
• Play Audio File​

  • Play a previously saved clip, upload text-to-speech, create a new recording, or upload a recording. This can be used to play through either a connected A100 or the DR40 itself.

• Trigger Relay

  • The DR40 can be connected to a simple relay directly on the device. It has a button configured as a doorbell and a generic relay as part of its hardware. 

  • DR40 is equipped with one dry contact Normally Open (NO) relay that can be used to control externally powered devices such as door chimes or lights rated up to 30 VAC/DC, 1A max. ​

1. Navigate to "Devices," select "Video Intercoms," and then click the name of the DR40 you wish to create a rule for.

2. Scroll down and select "Settings and Details." Click "Edit."

3. An "Add Rule" button will appear. Click this to set a schedule for the rule and configure the type of rule that will be used. Multiple rules can be configured.

4. Select or create a schedule and then select the action type you want to generate. You can click "Add Action" if you want to add more than one action for the Doorbell Press. Click "Save" when finished.

5. Once one rule has been saved, you can add additional rules by selecting "Add Another Rule."

Deleting a Doorbell Rule

1. Once a Doorbell Rule has been created, you can delete it by selecting "Delete Rule" and confirming the deletion.

Helpful Links

• Rhombus Access Control Deployment Guide and Best Practices (DR40 Manual Location)
• Installing/Registering the DC20
• DC20 Overview
• Installing/Registering the DR20
• User-Based Alert Notifications
• Creating and Assigning Alert Policies

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.