Two Reader Expansion Module Last updated Save as PDF Data sheets MR52 Two Reader Expansion Module (ADC-AC-MR52) - Data SheetTwo Reader Expansion Module (ADC-ACX2) - Data SheetThe Two Reader Expansion Module (ADC‑ACX2) adds two readers, six relay outputs, and eight programmable inputs to an Alarm.com Door Controller. Installation guides Two Reader Expansion Module (ADC-ACX2) - Installation GuideWire a Door Position Switch to an Two Reader Expansion Module (ADC-AC-MR52) User guides How-to troubleshooting guides MR52 Two Reader Expansion Module (ADC-AC-MR52) is showing tamperTwo Reader Expansion Module (ADC-ACX2) is showing tamper Frequently asked questions Can I use a Mercury MR52 Reader Interface board from another provider?Can the PFL terminal on the Two Reader Expansion Module be used to monitor AC power failures?What are the jumpers on the ADC-AC-MR52 for?What are the jumpers on the ADC-ACX2 for?When should the Two Reader Expansion Module (ADC-AC-MR52) be set to use PASS or 12V for the reader power?When should the Two Reader Expansion Module (ADC-ACX2) be set to use PASS or 12V for the reader power? Videos
