9. Jumpers and Connectors Overview
PCI-759 – User’s Guide (V1.02)
26
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9.1.3.11.
COM1: Serial Port Connector COM1
The 10
-pin
boxed header is to be used with the supplied serial cable.
COM1 pin assignment RS232:
COM1: Boxed Header,
DIP 10-pin
RS232
(Pinning on the on-board header)
D-SUB
Connector
Pin
Signal Name
1
DCD, Data carrier detect
2
DSR, Data set ready
3
RxD, Receive data
4
RTS, Request to send
5
TxD, Transmit data
6
CTS, Clear to send
7
DTR, Data terminal ready
8
RI, Ring indicator
9 GND,
ground
1
9
2
10
COM1
10 NC
Pining on the
supplied cable
connector:
9.1.3.12.
COM2: Serial Port Connector COM2
The 10-pin box header is to be used with the supplied serial cable. This interface is RS232 (default) and can be configured
as RS422 or RS485 (BIOS Setup).
For RS422 and RS485 mode, please install external termination resistors (120ohm).
COM2-pin assignment as RS232 (default):
COM2: Boxed Header,
DIP 10-pin
RS232
(Pinning on the on-board header)
D-SUB
Connector
Pin
Signal Name
1
DCD, Data carrier detect
2
DSR, Data set ready
3
RxD, Receive data
4
RTS, Request to send
5
TxD, Transmit data
6
CTS, Clear to send
7
DTR, Data terminal ready
8
RI, Ring indicator
9 GND,
ground
1
9
2
10
COM2
10 NC
Pining on the
supplied cable
connector:
