ADC-AC-MR50 Single Reader Expansion Module
- In stock, ready to ship
MR50 Single Reader Expansion Module (ADC-AC-MR50)
Smarter Access Control is a powerful, easy-to-use solution for businesses ranging from small shops to large commercial properties. The MR50 Single Reader Expansion Module is designed to add one extra reader to an Alarm.com door controller.
Each ADC-AC-MR50 adds one reader port, two relay outputs, and two programmable inputs to the system. Connect the expansion module to the controller using a shielded, RS-485 twisted pair.
Note: It is always recommended to power the ADC-AC-MR50 with 12 VDC, as the input voltage is passed through to power the attached reader.
For larger commercial installations, Single and Two Reader Expansion Modules can be daisy-chained together.
Module features
- Provides all I/O needed for a single door using one reader
- One reader input
- Two relay outputs
- Two programmable inputs
- For use with Alarm.com Door Controllers
Smarter Access Control benefits
- Scan-to-add card format and serial detection
- Control doors and manage users from the Alarm.com app
- Integrated Alarm.com intrusion and video offerings
- User-friendly, flexible scheduling
- Configure hardware using web or app for easy installation
- Plug & play installation — no networking expertise required
Wiring Diagram: 
Specifications
| Input Power |
12/24 VDC, 150mA max Note: 12 VDC is recommended. |
|---|---|
| Output Power | Input voltage pass-through |
| Communication | 2-Wire RS-485 |
| Inputs |
One dedicated reader input Two programmable inputs One dedicated tamper input |
| Outputs |
Two relay outputs (2A @ 30V DC):
Single-wire LED control Single-wire buzzer output |
| Certifications |
UL 294 recognized FCC Part 15 Class A CE compliant RoHS (2011/65/EU & 2015/863) |
| Dimensions | 2.75 x 4.25 x 1.0” (70 x 108 x 25.4 mm) |
| Temperature |
-40 – 167°F (-40 – 75°C) operational -67 – 185°F (-55 – 85°C) storage |
| Operating Humidity | 5-95% RHNC |
