Access Control Card Readers and Keypads

Data sheets

• Alarm.com Access Control Readers - Data Sheet

• Alarm.com Smart Credentials - Data Sheet

Installation guides

• Mullion Reader (ADC-AC-ET10) - Installation Guide

• Single Gang Reader (ADC-AC-ET20) - Installation Guide

• Single Gang Reader with Keypad (ADC-AC-ET25) - Installation Guide

User guides

How-to troubleshooting guides 

• Access Control reader or keypad is not receiving power

• Wiegand Access Control reader or keypad is transmitting incorrect credentials or incomplete format data

Frequently asked questions

• Can an Access Control card be configured to unlock a Z-Wave lock with a swipe?No. It is not possible to set up a rule that directly unlocks a Z-Wave lock when an Access Control card is swiped at a reader device.

• How do Alarm.com card and keyfob credentials work?

• What is a drain wire and where does it go on the Alarm.com controller or expansion module?Some readers contain a drain wire. These drain wires are used in cables in conjunction with a metallic shield to ensure there is effective grounding.

• Which Access Control readers and keypads are compatible?Alarm.com Access Control Readers (ET10, ET20, ET25) support modern credentials including proximity, encrypted smart cards, NFC, and exclusive mobile credentials, and are fully OSDP Secure Channel compliant.

• Which wire gauge should be used with Access Control Card Readers?

• Why does the LED on the reader device stay red when a door is triggered to open?A reader LED staying red when a door opens usually indicates a wiring issue.

• Why does the reader or keypad continuously beep when the door is buzzed open?A reader or keypad that beeps continuously when a door is buzzed open is usually wired incorrectly.