SMC Networks 1000BASE-X 用户手册
P
IN
A
SSIGNMENTS
B-2
Console Port to 9-Pin COM Port on PC
Console Port to 25-Pin DTE Port on PC
Switch’s 9-Pin
Serial Port
CCITT Signal
PC’s 9-Pin
COM Port
2 RXD
<---------RXD ------------
3 TxD
3 TXD
-----------TXD ---------->
2 RxD
5 SGND
-----------SGND ----------
5 SGND
No other pins are used.
Switch’s 9-Pin Serial
Port
Null Modem
PC’s 25-Pin DTE
Port
2 RXD
<---------RXD ------------
2 TXD
3 TXD
-----------TXD ---------->
3 RXD
5 SGND
-----------SGND ----------
7 SGND
No other pins are used.