| Author |
Message |
fjpompeo
Joined: 29 Nov 2003
Posts: 276
|
 29 Jul 2008 23:51 RS232C to RS232C isolated repeater |
|
|
|
I need a schematic of a RS232C to RS232C isolated repeater with full control or using RTS, CTS, DTR, DSR (RI not used) and -12V and +12V output swing voltage.
Maximun speed 9600 baud.
Was wondering to use a couple of four channel optoisolator one as four line receiver and other as four line transmiter. Is there another good and simple idea??
Regards,
Fernando
|
|
| Back to top |
|
 |
IanP
Joined: 05 Oct 2004
Posts: 6346
Helped: 1505
Location: West Coast
|
| 30 Jul 2008 2:05 Re: RS232C to RS232C isolated repeater |
|
|
|
Circuits with MAX232 <-> optoisolator <-> MAX232 work well ..
Of course you will have to isolate power to supply both sides of this barrier; small DC/DC converter such as the NME0505 should easily do the job ..
Here is an example:
http://www.rs485.com/pdffiles/converters/iso232.pdf
Regards,
IanP
|
|
| Back to top |
|
|
fjpompeo
Joined: 29 Nov 2003
Posts: 276
|
| 30 Jul 2008 21:15 Re: RS232C to RS232C isolated repeater |
|
|
|
| Thanks Ianp.
|
|
| Back to top |
|
|
