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Serial Ports
SERIAL PORT CONNECTORS
See the Connector Location Diagram on pages 17 and 18 for connector and cable information.
The pinout of the DB9 connector applies to use of the VersaLogic transition cable #VL-CBL2001.
Table 7: Connectors J8/J9 — Serial Port Pinout
COM1 COM2 COM3 COM4
J9 Pin J9 Pin J8 Pin J8 Pin
30 – Reference
RS-232
RS-422
RS-485
DB9
Pin
1
11
1
11
DCD
—
—
1
2
12
2
12
DSR
—
—
6
3
13
3
13
RXD*
TxD+
TxD+
2
4
14
4
14
RTS
TxD–
TxD–
7
5
15
5
15
TXD*
—
—
3
6
16
6
16
CTS
Ground
Ground
8
7
17
7
17
DTR
RxD–
TxD/RxD–
4
8
18
8
18
RI
RxD+
TxD/RxD+
9
9
19
9
19
Ground
Ground
Ground
5
10
20
10
20
N/C
—
—
—
VSBC-6 Reference Manual