Dear Mr. Alexandre, Thankyou for your reply. I have downloaded the ckt. from the web. Let me try the same. Regards, Rajkumar. Alexandre Guimaraes @MITVMA.MIT.EDU> on 02/29/2000 08:03:54 PM Please respond to pic microcontroller discussion list Sent by: pic microcontroller discussion list To: PICLIST@MITVMA.MIT.EDU cc: Subject: Re: ISOLATED RS232 [OT] I have a circuit that I have been using for many years and works nicely up to 9600 baud. It sort of converts the RS 232 connection to a current loop. The url where you can take a look at it is at http://www.iis.com.br/~alexg Best regards, Alexandre Guimaraes alexg@iis.com.br -----Mensagem Original----- De: Raj kumar . D Para: Enviada em: Ter¨a-feira, 29 de Fevereiro de 2000 09:09 Assunto: ISOLATED RS232 [OT] > Dear friends, > > I am looking for a cheapest version of isolated RS232 . Can anybody tried > this before? > Is there any web wherein i can download circuit diagram and component list. > > Thanking you all. > > rajkumar >