Medical grade network connection

You can use:

- a pulse transformer with separated windings

- a high-isolation photo-coupler or a coupler made of a light pipe with emitter/receiver diodes

- piezo transformer

- rf transceivers and more...

- Henry

Mad@Spammers schrieb in Nachricht ...

Fiberoptic. It's a simplyst way.

It's can be 2 IR LED, 2 IR phototransistor and 2 pice (RXD TXD) wide fiberoptic. But much better is sapetial receiver-transmitter ("driver" ?)

It's way for optical isolation for ANY voltage. And very cheap.

Optical fiber.

No electrical connection whatsoever.

HP makes some very nice parts for this kind of thing.

Use high speed opto-isolators for digital signals and an RS422 connection. Most likely, you will require the same isolation on both sides of the cable. You can have high speed synchronous RS422 transmission with clock recovery with a DPLL circuit in the receiver, that spares two wire pairs.

The Motorola MPC8xx processors have the required communications facilities for such a configuration.

To isolate from the other I/O, you will need isolated power for the RS422 interface circuits. The Texax Instruments (Burr Brown products dicision) DCR01 Series provides some isolation, perhaps not enough for your aplication.

Sincerely,

- Thierry Moreau

CONNOTECH Experts-conseils inc.

Tel.: (514)385-5691 Fax: (514)385-5900

e-mail: snipped-for-privacy@connotech.com

Use a battery operated embedded computer.

/us

Mad@Spammers wrote: