3-28 
Figure3-2 DB9-to-RJ45 console cable 
 
 
Table3-2 DB9-to-RJ45 console cable signal pinout 
RJ-45  Signal  DB-9  Signal 
1  RTS  8  CTS 
2  DTR  6  DSR 
3  TXD  2  RXD 
4  SG  5  SG 
5  SG  5  SG 
6  RXD  3  TXD 
7  DSR  4  DTR 
8  CTS  7  RTS 
 
To connect the switch to  a  configuration terminal (for example, a PC)  by using  a DB9-to-RJ45 
console cable: 
1.  Plug the DB-9 female connector of the DB9-to-RJ45 console cable to the serial port on the PC. 
2.  Connect the RJ-45 connector to the serial console port on the switch. 
Connecting a USB-to-RJ45 console cable 
 
 
  To use a USB-to-RJ45 console cable to connect the switch to a configuration terminal, first 
download and install the USB-to-RJ45 console driver on the configuration terminal and then 
connect the USB-to-RJ45 console cable to the configuration terminal. 
  If you have connected a USB-to-RJ45 console cable to the configuration terminal before 
installing the driver, remove and reconnect the USB-to-RJ45 console cable to the configuration 
terminal after driver installation. 
 
Figure3-3 USB-to-RJ45 console cable