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Alarm.Com ADC-AC-ET20 User Manual

Alarm.Com ADC-AC-ET20
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Single Gang Reader (ADC-AC-ET20) - Installation Guide
The Single Gang Reader (ADC-AC-ET20) offers a modern aesthetic and a state-of-the-art feature set. Standard
technologies include Proximity (125 kHz), NFC (13.56 MHz), and Bluetooth. The Single Gang Reader
is fully OSDP compliant and is enabled for Secure Channel. Additionally, the reader offers a patented feature
called OSDP Auto-Detect. The reader communicates OSDP and Wiegand over the same wires to automatically detect
and convert to OSDP Secure Channel protocol, eliminating the need to rewire or reconfigure the reader.
Mount the wall plate
Connect the wall plate to the single gang box using the provided #6 screws. Alternatively, the reader can be mounted
using the provided #4 screws in the four outer holes for other installation requirements. Drywall installations will require
molly bolts.
https://answers.alarm.com/Partner/Installation_and_Troubleshooting/Access_Control/Access_Control_Entry%2F%2FExit_De…
Updated: Mon, 08 Apr 2024 20:56:52 GMT
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Alarm.Com ADC-AC-ET20 Specifications

General IconGeneral
BrandAlarm.Com
ModelADC-AC-ET20
CategoryRfid Systems
LanguageEnglish

Summary

Single Gang Reader Installation Guide

Mount the Wall Plate

Instructions for attaching the reader's wall plate to the electrical box using provided screws.

Reader Wiring and Connections

Common Cable Connections

Details wire colors and their functions for connecting the reader to power and data.

Wiring Length and Current Specifications

Specifies maximum cable lengths for Wiegand/OSDP and reader current draw.

Reader Installation Steps and Configuration

Secure Reader to Wall Plate

Steps for physically attaching the reader to the mounted wall plate.

Power and Test Reader

Procedure to power up the reader and verify functionality with a credential.

Installation Tips

Provides specific advice for connecting the reader to Wiegand or OSDP panels.

Set Reader for Wiegand or OSDP

Instructions on configuring the reader's communication protocol (Wiegand/OSDP).

Reader Startup Sequence and Indicators

Firmware Version Specifics

Details on configuring Wiegand/OSDP mode based on reader firmware versions.

Reader Startup Sequence Indicators

Explains LED and beep sequences indicating reader type and communication mode.