See the following for information on setting up
Switches.
Chapter 10 Switches
A hand-held GP outputs external buzzer or DOUT
by a serial communication with a conversion adapter. Thus, it has a
delay of approx. 100ms from the time when a switch is psressed to
the time to output a signal. However, if the communication
condition is bad such as lots of noise, it may experience the
maximum of 200 ms delay. If the communication is not successful
longer than 200ms, it causes the time out error.
The external buzzer is output by both
function keys and screen touches.
The sound of the external buzzer is linked with
the sound of the touch buzzer.
