[SI-LIST] Re: RJ45 interfacing with RS232

Venu,

Are you asking how to connect from a serial interface that uses RJ45 
connectors such as CISCO to a DB9 female connector to a PC?  If so, the 
problem is that there are no set standards for RS232 wiring assignments on 
an RJ45 as there are for DB9 and DB25 connectors.  I know of at least five 
different configurations.  About the only thing they tend to agree on is 
the ground pin assignment.

If you have an existing cable with a DB9 or DB25 connector, then you can 
use an ohmmeter to determine the connections.  Otherwise, if you are making 
a cable to go to existing equipment, you will need to obtain documentation 
about that manufacturer's variation on the theme.


At 10:35 PM 9/29/2003 -0700, venu wrote:
>hi all,
>can any body plz. explain me how to creat an interface between
>RS232 to RJ45 efficiently?
>thanx in advance,
>venu.
>
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