Appendix C - Pinouts
68
144732 (C)
Serial Port Connectors
RS-232, RS-422 and RS-485 are supported by AIM4.
COM1
The following table lists the signal definitions for the COM1 DB-9 connector.
Table C - 5. COM1 Connector Pinout
RS-232
RS-422
RS-485
Pin
Signal
Pin
Signal
Pin
Signal
1
DCD1
1
TXD- (note 1)
1
DATA- (note 1)
2
RXD1
2
TXD+ (note 1)
2
DATA+ (note 1)
3
TXD1
3
NC
3
NC
4
DTR1
4
NC
4
NC
5
GND
5
GND
5
GND
6
DSR1
6
RXD-
6
NC
7
RTS1
7
RXD+
7
NC
8
CTS1
8
NC
8
NC
9
RI1
9
Voltage (note 2)
9
Voltage (note 2)
Note
150
Ω
termination resistors can be connected across transmit or receive lines
by inserting jumpers JP5 and JP7. Refer to Appendix D.
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