Aaeon SBC-551 Manual - page 42

34    SBC-551/552 User Manual

RS-232/422/485 connector (CN7)

RS-232/422/485 connector pin assignment (CN7)

Pin

Signal

1

DCD

2

DSR

3

RX

4

RTS

5

TX

6

CTS

7

DTR

8

RI

9

GND

10

NC

11

B485TXD+

12

B485TXD-

13

B422RXD+

14

B422RXD-