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Print ArticleLED And Beeper Operation: As delivered, the DK-26 echoes key presses by a short beep and a short flash of the green LED.
The red LED comes on to show that the door has been released and also to confirm or reject programming commands (two flashes confirm; one rejects).
You can reverse the red/green LED logic so that the green light comes on when the red light did, and visa versa.
The beeper can also be re-programmed to sound when the door is released. Note that the beeper will continue to sound for its other functions. Beeping upon unlock is helpful if a silent type of electric lock such as an electromagnetic lock is being used.
When the person hears the beeper they know the door is unlocked.
Programmable Relay: The DK-26 CPU board includes a second 5 Amp, SPDT relay which may be programmed for different functions
