rhombus DR40 Video Intercom User Manual
- June 14, 2024
- Rhombus
Table of Contents
- Warning
- System Overview
- Mounting Instructions
- Recommended Wiring
- 
Warning
| Date | Revision | Notes |
|---|---|---|
| 9/22/2023 | A | Initial Release |
Service and installation should only be performed by trained personnel.
WARNING messages will be fully boxed as shown here. Failing to follow instruction may result in damage to the DR40 or other connected components.
Federal Communication Commission Interference Statement This device complies
with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may
cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one of the
following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this
equipment. This transmitter must not be co-located or operating in conjunction
with any other antenna or transmitter.
Industry Canada statement:
This device contains licenceexempt transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Development Canada’s licenceexempt RSS(s).
Operation is subject to the following two conditions:
(1) This device may not cause interference
(2) This device must accept any interference, including interference that may
cause undesired operation of the device
This equipment must be installed and operated in accordance with provided
instructions and the antenna(s) used for this transmitter must be installed to
provide a separation distance of at least 20 cm from all persons and must not
be co-located or operating in conjunction with any other antenna or
transmitter. End-users and installers must be provide with antenna
installation instructions and transmitter operating conditions for satisfying
RF exposure compliance.
System Overview
Included in the Box:
- DR40 Door Reader
- (2) Wall anchors
- (2)#8FHwallscrews
- (2) 8-32 outlet box screws
- (1) T6 TorxKey
- (1) Waterproofing Kit
Tools You’ll Need:
- Phillips #2 screwdriver
- Pen or pencil for marking drill locations
- Power drill and 1/4” drill bit for wall anchors or 1/8” drill bit for screw pilot
- 1-3/8” hole saw
Mounting Instructions
STEP 1
To install, pre-drill pilot holes into the desired mounting surface in accordance with the mounting specifications provided (see Appendix). Note that a 3/16” pilot hole is required if using the wall anchors.
Step 2
Remove the mounting bracket from the reader by unscrewing the T6 screw at the
bottom of the device.
Fasten the mounting bracket to the surface using the included wall screws and
ensure that the arrow symbol on the bracket is pointing up.
Step 3
After wiring is completed, pass theDR40 cables through the hole and slide the
reader into the mounting bracket.
Ensure that the tab at the top of the mounting bracket is inserted into the
top slot of the DR40.
Step 4
While holding the DR40 in place, insert and tighten the T6 screw into the bottom of the bracket using the torx key provided.
Recommended Wiring
Wiring methods used shall be in accordance with the National Electrical Code,
ANSI/NFPA 70.
All wiring of the DR40 should be performed prior to connecting power. Power
should be removed before attempting to service the DR40 or any of its
connected devices.
WARNING : Failure to remove power prior to servicing the DR40 may result in damage to connected devices.
Wire Type and Size
| Wire Type| Twisted Pair| Shielded| Minimum Size| Maximum Length
---|---|---|---|---|---
Reader Power| Solid or Stranded| | Yes| 18 AWG| 300 ft
Reader Data (RS-485)| Solid or Stranded| Yes| Yes| 24 AWG| 300 ft
Ethernet Line| –| | | | 228 ft
Video Intercom
If access control is not required, DR40 can be used as a standalone device to
capture audio and video events. The DR40 can be powered using POE or a
12-28VDC, 12W power source.
If powered remotely, the DR40 can connect to the network through ethernet or Wi-Fi. Use a CAT5 or CAT6 cable with RJ45 connector and plug into the DR40 pigtail cable for ethernet use.
Video Door Reader
DR40 is compatible with the Rhombus DC20 Door Controller and communicates
using OSDP protocol over RS-485. Connect the [A], [B] and [GND] lines of the
DR40 to the corresponding terminals in the DC20.
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 power directly by the DC20. Always check the power requirements of the door controller prior to installation. If PoE is not used, an Ethernet or Wi-Fi connection is required. Refer to Recommended Wire Type and Size table above for more wiring detail.
Relay
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 upto 30 VAC/DC, 1A max. Relay events can be configured in the Rhombus Console after registration.
Operation
Proximity Sensor
The DR40 proximity sensor allows for touch-free access using Bluetooth if set-
up on the mobile app.
Accepted Credentials
DR40 is compatible with most NFC card types including mobile NFC for iPhone®
and Android® devices. DR40 also facilitates Touchless Entry with your mobile
device’s Bluetooth, Location, and other onboard services.
Offline Mode
During a network disconnection, the DR40 will continue to record and save the
footage to the on board storage, while power is present. Access Control
functionality is also preserved, however, user grants and schedules cannot be
updated. Once the network connection has been restored, all alerts, movements,
and access control configurations will be updated automatically.
Registration
Getting Started
To get started, scan the QR code provided with the DR40 or visit
www.rhombus.com/setup/dr40
Specifications
General
Dimensions: Mullion 50 mm x 165 mm x 35.1 mm [1.97 in x 6.5 in x 1.38 in]
Weight: 0.40kg (0.9lbs)
Mounting: Wood/drywall screws Included
Credential
Frequency: 13.56 MHz
Credential Compatibility: Rhombus Badge, ISO 14443A (CSN), Rhombus Key app
Connectivity/Power
Controller Compatibility: DC20
InputVoltage: 802.3af or 11-28VDC
Power Consumption MAX: 9.3W
Environmental
Operating Temperature: -40˚C to 50˚C [-40˚F to 122˚F] Operating Humidity:
10%-90% RH
Weather Resistance: IP65
Camera
Image Sensor: 5MP sensor, 2688 x 1944 resolution
Field of View: 155.2˚ Diagonal FoV, 118.4˚ Horizontal FoV, 86.4˚ FoV
FCC, CE, RCM, AUS and NZ Compliant
Troubleshooting
Power Cycling
If the DR40 needs to be power cycled, remove the reader from the mounting
bracket and unplug the device from the power source. Leave unplugged for
around 30 seconds before reconnecting.
LED Indicators
The DR40 LED will fade from white to “OFF” when initially connecting.
The LED will fade from red to white when the RS485 connection is down or if the reader is not connected to an Access Control Unit (ACU).
The LED will spin white when awaiting authorization. It will momentarily turn green if access is granted or red if authorization is denied.
See the appendix for a complete list of DR40 LED ring patterns.
Appendix
Mounting Dimensions
DR40 LED Ring Patterns
| Color Pattern | Feedback Name | Feedback Description |
|---|---|---|
| White / OFF fade | Starting Up | Initial connection period, not yet fully |
available.
Blue / OFF fade| Unregistered| –
Red / White fade| ERR: No ACU| RS485 connection is down.
Blue / OFF, fast fade| ERR: No network| Unable to access the internet.
Blue / white, fast fade| ERR: No cloud| Able to access the Internet, but not
able to reach Rhombus.
Dim white, steady| Await intent| –
Spinning white| Awaiting authorization| –
Single red flash| Authorization rejected| –
Single blue / OFF fade| Doorbell pressed| –
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