Appendix D
Connectors
© National Instruments Corporation
D-3
VXIpc-486 Model 500 Series
COM1
SYSFAIL
FAILED
TEST
ON LINE
ACCESS
DRIVE
TURBO
VGA
COM2
DISK
DRIVE
COM1
LPT
TRG IN
AUDIO/
TRG OUT
CLK
KEYBOARD
GPIB
RESET
COM1
1
2
3
4
5
6
7
8
9
Connector Type:
9-pin Subminiature
DHD-20
Figure D-3. COM1 Connector
Table D-3. COM1 Connector Signals
Pin
Signal Name
Signal Description
1
GND
Ground
2
RXD*
Receive Data
3
TXD*
Transmit Data
4
DTR*
Data Terminal Ready
5
GND
Ground
6
DSR*
Data Set Ready
7
RTS*
Ready to Send
8
CTS*
Clear to Send
9
GND
Ground