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Pinout – StarTech.com PEX8S232485 User Manual

Page 7

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Instruction Manual

4

Pinout

Pin 1

DCD

Pin 2

RXD

Pin 3

TXD

Pin 4

DTR

Pin 5

GND

Pin 6

DSR

Pin 7

RTS

Pin 8

CTS

Pin 9

RI

422/485

485

4 Wires

2 Wires

1

TXD+

RXD+ (485)

2

TXD-

RXD- (485)

3

RXD+

X

4

RXD-

X

5

GND

GND

RS232

RS422/485

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