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Summary of Contents for RHOMBUS DR20
- Page 1 DR20 Door Reader User Manual Revision 1.0 23092...
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Page 2: Table Of Contents
Contents System Overview Mounting Instructions Recommended Wiring Operation Registration Specifications Troubleshooting Appendix 2 DR20 User Manual... - Page 3 WARNING messages will be fully boxed as shown here. Failing to follow instruction may result in damage to the DR20 or other connected components. 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.
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Page 4: System Overview
DR20 Overview Quickly access your spaces by card, mobile app, or wave-to-unlock gestures with the DR20 Door Reader — a modern, touchless, and reliable smart reader. Included in the box: Tools You’ll Need: • • DR20 Door Reader Phillips #2 screwdriver •... -
Page 5: Mounting Instructions
Ensure that the tab at the top of the mounting bracket is inserted into the top slot of the DR20. STEP 4 While holding the DR20 in place, insert and tighten the T6 screw back into the bottom of the bracket using the torx key provided. -
Page 6: Recommended Wiring
Wiring methods used shall be in accordance with the National Electrical Code, ANSI/NFPA 70. All wiring of the DR20 should be performed prior to connecting power. Power should be removed before attempting to service the DR20 or any of its connected devices. -
Page 7: Operation
Power to the reader can be supplied directly by the 12VDC power supply in the “WIEGAND” section of the DC20 Door Controller. Alternatively, an external power supply can be used. Note that DR20 requires 8-28VDC with a maximum power of 4.8W. Refer to Recommended Wire Type and Size table above for more wiring detail. -
Page 8: Registration
Registration Getting Started To get started, scan the QR code provided with the DR20 or visit www.rhombus.com/setup/dr20 Specifications General Dimensions: Mullion 50 mm x 130 mm x 20 mm [1.97 in x 5.12 in x 0.79 in] Weight: 0.31kg (0.7lbs) -
Page 9: Troubleshooting
Troubleshooting Power Cycling If the DR20 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 DR20 LED will fade from white to “OFF”... -
Page 10: Appendix
Appendix Mounting Dimensions 1-3/8" (35mm) " (82.5 mm) " (40 mm) 10 DR20 User Manual... - Page 11 DR20 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. Red/Yellow flash ERR: Internal Try again. Dim white, steady...
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