Diego Sierra wrote: > I need to send a TTL signal through an optic fibre (16 meters) and Thank you all for your answers. I will search Agilent for those boxes. Also the toshiba ones seems fine for my application. Cheers, Diego. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads