Quatech Serial Device Server

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Quatech SDS User’s Manual Appendix A

Signals:

RJ-45:

DB-9:

View looking into

the connector

View looking into

the connector

RS-232

signal

Pin # RS-422/485 signal,

4-wire mode

RS-422/485 signal,

2-wire mode

RI 1

TxD– Transmit/Receive Data (Data–)

RTS 2

AuxOut+

N/C

DTR 3

AuxOut–

N/C

GND 4

GND Signal Ground (GND)

TxD 5

TxD+ Transmit/Receive Data (Data+)

RxD 6

RxD+

N/C

DCD 7

AuxIn–

N/C

DSR 8

RxD–

N/C

CTS 9

AuxIn+

N/C

N/C 10

N/C N/C

RS-232

signal

Pin # RS-422/485 signal,

4-wire mode

RS-422/485 signal,

2-wire mode

DCD 1 AuxIn–

N/C

RxD 2 RxD+

N/C

TxD 3 TxD+

Transmit/Receive Data (Data+)

DTR 4 AuxOut–

N/C

GND 5 GND

Signal Ground (GND)

DSR 6 RxD–

N/C

RTS 7 AuxOut+

N/C

CTS 8 AuxIn+

N/C

RI 9 TxD–

Transmit/Receive Data (Data–)

July 2005 940-0183-153 Page 85

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