
Appendix C–Pinouts
69
Technical Note
For TXD termination, connect a 150
Ω
, ½ watt resistor from pin 3B to pin
4B, with pin 1B connected to pin 3B and pin 2B connected to pin 4B.
For RXD termination, connect a 150
Ω
, ½ watt resistor from pin 8B to pin
9B, with pin 6B connected to pin 9B and pin 7B connected to pin 8B.
COM2
RS-232
Pin
Signal
Pin
Signal
1B
ORB_GND
14B
NC
2B
TXD2
15B
NC
3B
RXD2
16B
NC
4B
RTS2
17B
NC
5B
CTS2
18B
NC
6B
DSR2
19B
NC
7B
GND
20B
DTR2
8B
DCD2
21B
NC
9B
NC
22B
RI2
10B
NC
23B
NC
11B
PB_RESET
24B
NC
12B
NC
25B
NC
13B
NC
Caution
The COM2 port can be used (only one at a time) for the touchscreen con-
troller, IrDA interface, or RS-232 connector. The BIOS setup determines
whether COM2 is used for either the connector or the IrDA interface.
Jumpers on the touchscreen controller select the COM2 port or the AUX
port.
VGA Connector
The VGA connector is a 15-pin connector.
Pin
Signal
1
RED
2
GREEN
3
BLUE
4
NC
5
ORB_GND
6
ORB_GND
7
ORB_GND
8
ORB_GND