A-75
Look at the coordinates output by BUSSTAT. The coordinates should range
from about 400-3800 for X and from 600-3500 for Y. When the touchscreen is
mounted in its normal orientation, (cable exiting left-center), the origin will be
in the lower-left corner. If the touchscreen is installed with the cable exiting
right-center, the origin will be in the upper-right corner. Both X and Y should
increase steadily as you slide your finger from the origin to the diagonally
opposite corner. Check the other two corners to make sure their coordinates
look correct and that the touchscreen appears linear in each axis. If the
coordinates appear to be meaningless, try changing the Base I/O Port address of
the controller. Another device may be contending for the same I/O address.
If BUSSTAT works properly, try the TOUCHES diagnostic utility, described
on page 71. If TOUCHES does not display any data, the problem is probably
that the IRQ is incorrectly specified on the driver command line or there is an
IRQ conflict with another device. See Choosing an Interrupt for PC-Bus
Controllers in the DOS and Windows Driver Guide available at
www.elotouch.com/support/dwnldmnls.asp
.
Touchscreen Cables
Pinouts from the touchscreen to a PC-Bus or serial controller are as follows:
See “DB9 and DB25 Connector Pin Positions” on page A-79 for DB9 connector
pin positions.
P/N 454173-000 Cable
This cable may connect:
• a touchmonitor to a PC-Bus controller
• a touchmonitor with an internal serial controller to the computer’s serial
(COM) port.
It is a straight-through cable, and all nine pins are used. Check this cable with an
ohmmeter. Other common computer data cables may be substituted for this
cable.
Signal
Touchscreen
Ribbon Cable
Transient Protection
Cable (DB9)
P/N 899389-000
Touchscreen
Cable (DB9)
P/N 454173-000
H
1
9
9
X
2
6
6
S
3
1
1
Y
4
7
7
L
5
8
8
Summary of Contents for AccuTouch 821615-000
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Page 75: ...A 80 I n t e l l i T o u c h S e c u r e T o u c h G u i d e...
Page 78: ...B 83 2210 Serial Controller Figure B 2 E271 2210 Serial Controller...
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