2-4CHAPTER 2: OVERVIEW

PC Cable

Figure 2-3 shows the pinouts for a 9-pin female to 9-pin female PC cable. A null modem-type cable may be used.

To Console port

To PC serial port

5

4

3

2

1

5

4

3

2

1

 

9

8

7

6

 

9

8

7

6

9-pin female connector

9-pin female connector

Name

Abbr Pin

Pin Abbr

 

Name

Receive Data

RxD

2

 

 

 

 

Transmit Data

TxD

3

 

 

 

 

Carrier Detect

CD

1

 

 

 

 

Clear to Send

CTS

8

 

 

 

 

Request to Send

RTS

7

 

 

 

 

Signal Ground

Gnd

5

 

 

 

 

 

 

Data Terminal Ready

DTR

4

 

 

 

 

Data Set Ready

DSR

6

 

 

 

 

 

 

 

 

 

3TxD Transmit Data

2RxD Receive Data

7RTS Request to Send

8CTS Clear to Send

1 CD Carrier Detect

5GND Signal Ground

6DSR Data Set Ready

4 DTR Data Terminal Ready

Figure 2-39-pin to 9-pin PC Cable (Null Modem-Type)

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3Com 52x, 32x manual pin to 9-pin PC Cable Null Modem-Type