COM 1 (CN 13) & COM 2 (CN 11) Serial Ports

On board offer two serial ports for serial devices connection. Pin definitions show as below.

COM 1 RS-232 (CN13)

Pin

Signal

Pin

Signal

1

DCD1

2

RXD1

3

TXD1

4

DTR1

5

GND

6

DSR1

7

RTS1

8

CTS1

9

RI

10

N.C.

COM 2 RS-232/422/485 (CN11)

Pin

Signal

Pin

Signal

1 DCD2(422TXD-/485DATA-) 2

RXD2 (422RXD+)

3 TXD2(422TXD+/485DATA+) 4

DTR2 (422RXD-)

5

GND

6

DSR2

7

RTS2

8

CTS2

9

RI

10

N.C.

3 2

SBC-659P Installation Guide

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Image 42
IBM SBC-659P manual COM 1 CN 13 & COM 2 CN 11 Serial Ports