RJ-45 8-Pin to Modem

The following table shows how to build a modem cable for EtherLite or SCSI Terminal Server, using an 8-pin RJ-45 plug.

RJ-45 Modem Cable
RJ-45
(Digi End)
  DB-25 Male
(Modem End)
Signal Pin Pin Signal

RTS

1

connected to

4

RTS

DSR

2

connected to

6

DSR

DCD

3

connected to

8

DCD

RxD

4

connected to

3

RxD

TxD

5

connected to

2

TxD

SG

6

connected to

7

SG

DTR

7

connected to

20

DTR

CTS

8

connected to

5

CTS