DataLab LCD 15 / 15-T
External control buttons
If the monitor control buttons are not reachable and it is desired to change monitor setting,
it is possible to connect external buttons to the monitor through the EXT connector. The
EXT connector provides access to contacts of all control buttons, as well as signal LED. In-
dividual connector pins meaning is summarized in the following table:
Pin Cannon
DB9
Meaning
1
Power
2
Enter
3
>
/ brightness
4
<
/ contrast
5
Exit
6
Auto
7
COMM
8
LED 1 power
9
LED 2 suspend mode
External buttons connector (EXT) pins
It is recommended to use the same external LED colors as are the color of the internal
one::
●
LED 1 blue
●
LED 2 yellow
The reason is the voltage levels, which differs for LEDs of different colors. External LED
cathode should be connected to the COMM pin..
10
