PC104-AD16
Page 7
5
Interfacing Examples for the Digital Lines of the PC104-AD16
The following basic connection examples demonstrate the use of the digital inputs and outputs to the PC104-
AD16. The pin assignment of the 26-way pin connectors is described in chapter 2.2.
5.1
Interfacing Example for Digital Inputs
5.1.1
Connecting a Push-Button /
Switch
Please make sure to use a push-button with
debounce protection, because otherwise
several pulses might be recorded.
The 3.9k
Ω
pull-down resistor is absolutely
necessary to create a defined low signal!
5.2
Interfacing Examples for Digital Outputs
5.2.1
Connecting an LED
Serial resistors in the output lines limit the
current and protect the hardware from be-
ing destroyed.
Only so-called low-current LEDs can be
used, because they already work with 1mA
current.
Please also observe the total current listed
in the technical data (see chapter 8).
6
Software Installation
The PC104-AD16 is 100% software compatible to the analog ISA data acquisition card PC20TR of bmcm.
That means that all software products of the PC20TR can also be used for the PC/104 card if installed as
"PC20TR".
For software, documentation, DOS driver, and instructions for programming the PC20TR under MS-DOS
visit the download area (archive, operating system Windows 2000/XP, MS-DOS, software version 4.2) of
the website at .
