B PIN-OUTS

Null Modem Cable

9-pin to RS-232 25-pin

 

 

 

 

Switch 3300 MM

PC/Terminal

 

 

 

Cable connector: 9-pin female

Cable connector: 25-pin male/female

 

Screen

Shell

1

Screen

only required if screen

 

 

 

TxD

3

3

RxD

 

 

RxD

2

2

TxD

always required

 

Ground

5

7

Ground

 

 

RTS

7

4

RTS

 

 

CTS

8

20

DTR

 

 

DSR

6

5

CTS

required for handshake

 

DCD

1

6

DSR

 

 

DTR

4

8

DCD

 

PC-AT Serial Cable

9-pin to 9-pin

 

 

 

 

Switch 3300 MM

PC-AT Serial Port

 

 

Cable connector: 9-pin female

Cable connector: 9-pin female

 

Screen

Shell

Shell

Screen

only required if screen

 

 

 

DTR

4

1

DCD

 

 

TxD

3

2

RxD

always required

 

RxD

2

3

TxD

 

 

CTS

8

4

DTR

required for handshake

 

 

 

Ground

5

5

Ground

always required

 

DSR

6

6

DSR

 

 

RTS

7

7

RTS

required for handshake

 

 

 

DCD

1

8

CTS

 

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3Com 16985ua.bk manual Null Modem Cable, PC-AT Serial Cable, Pin to RS-232 25-pin, Pin to 9-pin

16985ua.bk specifications

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