PIN ASSIGNMENTS

Console Port to 25-Pin DTE Port on PC

Switch Port DB-9 Pin No.

1(DCD)

2 (RXD)

3 (TXD)

4 (DTR)

5(SGND) 6 (DSR) 7 (RTS) 8 (CTS) 9 (RI)

 

Null Modem

25-Pin PC Port

 

DTE Pin No.

 

 

1

1

8 (DCD)

2

3

3 (TXD)

3

2

2 (RXD)

4

8

20 (DTR)

5

20

7 (SGND)

6

7

6 (DSR)

7

4

4 (RTS)

9

5

5 (CTS)

20

6

22 (RI)

B-6

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SMC Networks SMC6608T, SMC6608M Console Port to 25-Pin DTE Port on PC, Switch Port DB-9 Pin No, Null Modem Pin PC Port