PIN ASSIGNMENTS

Console Port to 9-Pin COM Port on PC

Switch’s 9-Pin

CCITT Signal

 

PC’s 9-Pin

Serial Port

 

 

 

COM Port

2 RXD

<

---------RXD ------------

3 TxD

3 TXD

-----------

TXD ----------

>

2 RxD

5 SGND

-----------

SGND ----------

5 SGND

No other pins are used.

Console Port to 25-Pin DTE Port on PC

Switch’s 9-Pin Serial

 

Null Modem

 

PC’s 25-Pin DTE

Port

 

 

 

Port

2 RXD

<

---------RXD ------------

2 TXD

3 TXD

-----------

TXD ----------

>

3 RXD

5 SGND

-----------

SGND ----------

7 SGND

No other pins are used.

B-2

Page 168
Image 168
SMC Networks 1000BASE-X manual Console Port to 9-Pin COM Port on PC, Console Port to 25-Pin DTE Port on PC