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RJ45 Signal

RJ45 Socket 8 Position

Adapter Wire Color

DB9 Socket 9 Position

DB9 Signal

DCD

1

Blue

1

DCD

RTS

2

Orange

7

RTS

TxD

4

Red

3

TxD

RxD

5

Green

2

RxD

SG

6

Yellow

5

SG

CTS

7

Brown

8

CTS

DTR

8

Gray

4

DTR

Table 7. DCE Devices that require DB25 (Male) to RJ45 adapter without hardware flow control

Manufacturer

Model

Serial Settings

SRS

830

9600 8N2

Table 8. Serial cable pinouts for DB25-Male to RJ45.

RJ45 Signal

RJ45 Socket 8 Position

Adapter Wire Color

DB9 Socket 9 Position

DB9 Signal

TxD

4

Red

2

TxD

RxD

5

Green

3

RxD

SG

6

Yellow

7

SG