RHOMBUS DR40 User manual

DR40 Video Intercom
User Manual
Revision 1.0 230727

2DR40 User Manual
Contents
System Overview 04
Mounting Instructions 05
Recommended Wiring 06
Operation 08
Registration 08
Specications 09
Troubleshooting
Appendix
10
11

3
DR40 User Manual
Service and installation should only be performed by trained personnel.
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communica-
tions. Operation of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.
IC Compliance Statement
This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the fol-
lowing two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
The device has been evaluated to meet general RF exposure requirement. The device can be used
in portable exposure condition without restriction.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes:
(1) L’appareil ne doit pas produire de brouillage, et
(2) l’utiliateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d’en compromettre le fonctionnement
L’appareil a été évalué pour répondre aux exigences générales en matière d’exposition aux RF.
L’appareil peut être utilisé en condition d’exposition portable sans restriction.
WARNING messages will be fully boxed as shown here. Failing to follow instruction may result
in damage to the DR40 or other connected components.
Date
9/22/2023 A Initial Release
Revision Notes

4DR40 User Manual
DR40 Overview
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
Included in the Box:
• DR40 Door Reader
• (2) Wall anchors
• (2) #8 FH wall screws
• (2) 8-32 outlet box screws
• (1) T6 Torx Key
• (1) Waterproong Kit
Camera
Button
Speaker
NFC Antenna
Light Sensor
Microphone
IR LED (Internal)
ToF
DR40
Video Reader
x1
x3 x3 x3 x1 x1
Equipped with a door reader, camera, and intercom, the DR40 makes it easy to monitor entry
events, grant access, and seamlessly communicate with visitors.

5
DR40 User Manual
Mounting the DR40
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 the DR40 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.

6DR40 User Manual
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.
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.
Wire Type and Size
Video Intercom
WARNING: Failure to remove power prior to servicing the DR40 may result in damage to
connected devices.
Reader Power
Reader Data (RS-485)
Ethernet Line
Solid or Stranded
Solid or Stranded
—
Wire Type
—
Yes
—
Twisted
Pair
Yes
Yes
—
Shielded
18 AWG
24 AWG
—
Minimum
Size
300 ft
300 ft
328 ft
Maximum
Length
PoE

7
DR40 User Manual
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.
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. Relay events can be
configured in the Rhombus Console after
registration.
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.
Video Door Reader
Relay
GND
A
B
1
G
ND
A
B
G
ND
A
B
G
ND
A
B
G
ND
A
B
1
2
3
4
RS-485
GN
D
+
12V
+12V
G
N
D
E
THERNET
BATT
12VD
C
S
LA
O
NL
Y
PWRIN
TAMPER
AUX
G
ND
RE
X
DPI
1
REX
DPI
2
REX
DPI
3
REX
DPI
4
INPUTS
RESET
N
CO
M
NO
N
CO
M
NO
N
NO
CO
M
G
ND
V
CC
N
NO
C
OM
G
ND
V
CC
N
NO
CO
M
G
ND
V
CC
N
NO
CO
M
G
ND
V
CC
D
OO
R RELAY
S
A
U
X
1
2
3
4
1
2
1
2VD
C
24VD
C
1
2VD
C
24VD
C
1
2VD
C
2
4VD
C
1
2VD
C
2
4VD
C
D
C2
0
rh
o
m
bus
GND
A
B
GND
A
B
GND
A
B
GND
A
B
1234
RS-485
WIE
G
AND
WIEGAND
1
1
2
2
3
3
4
4
+12V
+12V
G
ND
GND
OU
T2
OUT2
OU
T1
OUT1
D1
D1
D
0
D0
+12V
+12V
G
ND
GND
O
UT2
OUT2
O
UT1
OUT1
D1
D1
D
0
D0
+12
V
+12V
G
ND
GND
OU
T2
OUT2
OU
T1
OUT1
D1
D1
D
0
D0
+12V
+12V
G
ND
GND
OU
T2
OUT2
O
UT1
OUT1
D1
D1
D
0
D0
Ethernet
GND
A
B
1
GND
A
B
1
PoE

8DR40 User Manual
Operation
Registration
The DR40 proximity sensor allows for touch-free access using Bluetooth if set-up on the mobile
app.
To get started, scan the QR code provided with the DR40 or visit www.rhombus.com/setup/dr40
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.
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.
Proximity Sensor
Getting Started
Accepted Credentials
Ofine Mode

9
DR40 User Manual
Specications
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
Input Voltage: 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

10 DR40 User Manual
Troubleshooting
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.
See the appendix for a complete list of DR40 LED ring patterns.
Power Cycling
LED Indicators
Startup
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.
ERR: No ACU
Awaiting Authorization
Unlocked
Auth Reject
Standby

11
DR40 User Manual
Appendix
Mounting Dimensions
3 1
4"
(83 mm)
1"
(25.4 mm)
1-3/8"
(35 mm)

12 DR40 User Manual
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 Rhom-
bus.
Dim white, steady Await intent -
Spinning white Awaiting authorization -
Single red ash Authorization rejected -
Single blue / OFF fade Doorbell pressed -