Network Technologies CAT5 operation manual Null Modem Cable Pinouts, Cts Rts Dsr Dtr Dcd

NULL MODEM CABLE PINOUTS

PRIMUX to Terminal (9 PIN) null modem cable

PRIMUX to Terminal (25 PIN) null modem cable

( NTI cable part # DINT-xx-FF)

PRIMUX

TERIMINAL

PRIMUX

TERMINAL

9 pin

Signal

9 pin

9 pin

Signal

25 pin

Function

Pin #

Direction

Pin #

Function

Function

Pin #

Direction

Pin #

Function

RxD

2

3

TxD

RxD

2

2

TxD

TxD

3

2

RxD

TxD

3

3

RxD

CTS

8

N/C

7

RTS

CTS

8

N/C

4

RTS

RTS

7

N/C

8

CTS

RTS

7

N/C

5

CTS

DSR

6

N/C

4

DTR

DSR

6

N/C

20

DTR

DTR

4

N/C

6

DSR

DTR

4

N/C

6

DSR

DCD

1

N/C

1

DCD

DCD

1

N/C

8

DCD

SG

5

5

SG

SG

5

7

SG

N/C= not

connected (no cable wire)

In this cable signals CTS and RTS are connected to each other at the connector ends, and

signals DSR, DTR, and DCD are connected to each other at the connector ends.

1

2

3

4

5

13

1

6

7

8

9

25

14

Mating Face

Mating Face

of 9D

of 25D

Male Connector

Female Connector

9DFemale

9DFemale

NTIDINT-xx-FF

xx=6,10,15FEET

Note: Cable length not to exceed 15ft.

36