User manual

COM Board for Touch Screen
COM Board
The COM Board is an additional board for the TFT-controller-A with an
ISA bus interface that has 2 or 4 COM interfaces (COM5, 6, 7, 8). COM5
and COM6 are linked to the BA72 controller via a plug connector. COM5
is a reduced COM interface for RxD and TxD signals and is intended for
the use of the (optional) touch function.
As an option the COM board can be equipped with a COM7 and a COM8
interface. These can alternatively be operated as power-supplied interfa-
ces (COM7* /COM8*) or as powerless interfaces (COM7 / COM8).
I/O-Addresses of COM Interfaces
The four COM interfaces of the COM board have the following
I/O-addresses. Please refer to the table for the jumper settings.
COM Address (Hex)
5 2E0 - 2E7 330 - 337 320 - 327
6 328 - 32F 338 - 33F 328 - 32F
7 3E0 - 3E7 340 - 347 360 - 367
8 368 - 36 F 348 - 34F 368 - 36F
Jumper
Position
IO1 = open
IO2 = open
IO3 = open
Default
setting
IO1 = closed
IO2 = open
IO3 = open
IO1 = open
IO2 = closed
IO3 = open
COM Board
GB - 11