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Jetway Computer NF3E User Manual

Page 23

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18

(3)COM4/3/2/1(9-Pin): Serial Port Headers

2

Pin 1

3 4 5

6 7 8 9

Pin NO. RS232

*RS422

(for COM1)

*RS485

(for COM1)

Pin 1

DCD

TX-

DATA-

Pin 2

RXD

TX+

DATA+

Pin 3

TXD

RX+

NC

Pin 4

DTR

RX-

NC

Pin 5

GNG

GND

GND

Pin 6

DSR

NC

NC

Pin 7

RTS

NC

NC

Pin 8

CTS

NC

NC

Pin 9

RI

NC

NC

*Notice: RS422, RS485 function is supported by COM1 header only, with compatible
COM cable for RS422 or RS 485 function. User also needs to go to BIOS to set
‘Transmission Mode Select’ for COM1 (refer to Page 33).