From: yaniv_vi_at_yahoo.com
Date: 2001-05-22 03:28:22
hi
o.k. moritz it's works with medical standards .
but still after assembly you have to test the device for safety when
using optocouplers ?
i thought you , like me , liked the idea of infra red comm , because
of total safety and zero testing .
and also the option to interface palm pilot (irda ?)
about making another circuit board for the optocoupling - yeh - the
device would be little more expensive - but surely more safe - so i
think it's worth the money .
how simple would it be to dsign such an opto coupler ?
how much it adds to cost ?
sincerly yaniv vilnai .
--- In buildcheapeeg_at_yahoogroups.com, Moritz v. Buttlar <info_at_baltic-microsolutions.de> wrote:
> Am Mon, 21 Mai 2001 schrieben Sie:
> > hi
> > if we want to use some kind of opto couplers it's o.k. , but i
would
> > prefer dicrete , and the transiter of the opto coupler is in one
> > plastic box , and the reciever is in another .
> > the boxes preferably have like 10 cm of distance , and if not
another
> > way of making sure that now way a safety breach would ocur .
> >
> > this could maybe save some design complexiti and time bute still
give
> > perfecty safety .
> > but i don't feel that we should settle for more then total
safety .
>
> Hi !
>
> I think the optocouplers I found (CNY65) are good enough. They are
certified
> for medical devices (IEC601) . The problem with
> discrete solution: It requires probably an additional circuit board
which makes
> this an expensive solution.
>
> Moritz
>
> --
> --------------------------------------------------------------------
------
> Baltic Microsolutions / Flash Microcontroller Custom-Development
> http://www.baltic-microsolutions.de
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