How to Use the Reader
18
AY-M26 Installation and Configuration Manual
5.2
Manual LED and Buzzer Control
LED and buzzer behavior depend upon the reader firmware. For
example, three beeps on reset and successful configuration, or one
short beep and a flashing LED upon card transmission. However, it is
possible that the host control panel, to which the reader is connected,
may control the LED, the buzzer, or both. This depends upon
manipulation of the LED/buzzer control input, and only if these
options are enabled by the reader configurations.
These settings can be overridden using the brown LED/buzzer control
wire:
LED/buzzer control wire is left open:
LED and buzzer behave naturally based on firmware
preferences
LED/buzzer control wire is connected to ground:
If the LED control is enabled, the LED turns green
If the buzzer control is enabled, the buzzer continuously
buzzes
If both LED and buzzer control are enabled, the led turns
green and buzzer contentiously operated.
Use the LED/buzzer control wire to determine the behavior of the LED
and buzzer directly from the access control software.
LED and buzzer control function can be only programmed by
Configuration card. They cannot be programmed using the
reader keypad.
5.3
Optical Back Tamper
The AY-M26 includes an optical back tampering mechanism that
detects all attempts to dismantle the unit or remove it from the wall.
The status of the tamper mechanism is indicated by the purple tamper
control wire.
When the back tamper optical sensor is in “darkness” status, the
internal tamper output transistor is pulled to low.
