[QUOTE=blusky;4721993]Hola,

Yo tambien estoy investigando. Tengo este cable en casa

http://www.opticalprobe.net/en/iec_probes.html#BSC1141

Me llegó ayer, no lo he probado, viene con un CD, drivers y programa.

Más info [url]http://www.opticalprobe.net/pdf/BSM1000_brochure.pdf[/url]

BSC1141

Mechanical Specifications

Diameter: 32mm, Height: 29,5mm
Magnetic Force: N36
Body Material: Poly Propylene
Back Cover: ABS
Transparent Parts: Transparent Polycarbonate
Weight: ~125gr

Electrical Specifications

Standards: IEC 62056-21 (former IEC 1107)
Cable Length: 3m
Data Communication Speed: max 19200 baud
Operating Voltage: 5V
(Passive, port powered by USB)
Electrical Interface: USB 2.0 or 1.1
Wavelength: ~900nm
Key Features

USB optical probe saves your time for finding a USB to serial converter device to use with non USB optical probes in case of you don't have RS232 input on your laptop computer and it also avoids you to overcome the problems that have been introduced by those converters. The optical probe has two LEDs on the back side which show the operating conditions of the communication and this also makes it very easy to use and monitor the communication status.[/QUOTE]

hola perdona mi ignorancia pero esto para que sirve
salu2