LED color and beeps are how installers and users know the reader saw a card.
Behavior is set by the reader or panel. Check the Transmitter Solutions guide if the light pattern looks wrong.
System ConceptsReviewed 2026-08-28
Reader indicators
Lights and beeps that show a good read, a deny, or a wiring fault.
Also called
LED indicatorreader LEDbuzzerreader beeperReader LED and buzzerreader led and buzzer indicators
Catalog fields
LED IndicatorBuzzer/Alarm
Source: Transmitter Solutions product training