164APPENDIX D: CONNECTORS AND CABLES

Terminal Cable Figure 18 shows the pinouts for a 9-pin female to 25-pin null modem-type cable.

Figure 18 9-pin to 25-pin Terminal Cable (Null Modem-Type)

To Console port

 

 

 

 

To terminal

 

 

 

5

4

3

2

1

 

1

2

3

4

5

6

7

8

9

10

11 12

13

 

9

8

7

6

 

14

15

16

17

18

19

20

21 22

23

24

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9-pin female connector

 

25-pin male or female connector

Name

Abbr

Pin

Pin

Abbr

Name

 

 

 

 

 

Receive Data

RxD

2

2

 

TxD

Transmit Data

Transmit Data

TxD

3

3

 

RxD

Receive Data

 

Carrier Detect

CD

1

4

 

RTS

Request to Send

Clear to Send

CTS

8

5

 

CTS

Clear to Send

 

Request to Send

RTS

7

8

 

CD

 

Carrier Detect

Signal Ground

GND

5

7

 

GND

Signal Ground

Data Terminal Ready

DTR

4

6

 

DSR

Data Set Ready

Data Set Ready

DSR

6

20

DTR

Data Terminal Ready

Modem Cable Figure 19 shows the pinouts for a 9-pin female to 25-pin male straight-through-type cable.

Figure 19 9-pin to 25-pin Modem Cable (Straight-Through-Type)

To Console port

 

 

 

To modem

 

 

 

 

 

5

4

3

2

1

1

2

3

4

5

6

7

8

9

10

11 12

13

 

9

8

7

6

14

15

16

17

18

19

20

21 22

23

24

25

9-pin female connector

25-pin male connector

 

 

Name

Abbr Pin

Pin

Abbr

Name

 

 

 

 

Transmit Data

TxD

3

Receive Data

RxD

2

Request to Send

RTS

7

Carrier Detect

CD

1

Clear to Send

CTS

8

Signal Ground

GND

5

Data Set Ready

DSR

6

Data Terminal Ready

DTR

4

 

 

 

2

3

4

8

5

7

6

20

TxD

Transmit Data

RxD

Receive Data

RTS

Request to Send

CD

Carrier Detect

CTS

Clear to Send

GND

Signal Ground

DSR

Data Set Ready

DTR

Data Terminal Ready

Page 164
Image 164
3Com SuperStack II, NETBuilder SI manual Pin to 25-pin Terminal Cable Null Modem-Type