AVR-Chat

Thanks Kat, but i dont konw how terminations are made.....
Can you provide further information
Thanks again....

Javier

-----Mensaje original-----
De: Kathy Quinlan [mailto:kat-yahoo@kaqelectronics.dyndns.org]
Enviado el: Lunes, 07 de Marzo de 2005 10:12 a.m.
Para: AVR-Chat@yahoogroups.com
Asunto: Re: [AVR-Chat] RS485 connectios


Javier Fiasche wrote:

>
> Does anyone have idea/schematics of a rs485 db9 connector pinout?? How are
> standard connections made?? and another question, any ideas of circuitry
for
> making a rs485 bus terminacion aviable or not in the board using a jumper,
i
> think that someone has already posted this, but i dont seem to find it,
> Thanks
>
> Javier


RS-485 does not seem to have a standard pinout, but specific aplications
have standard pinouts, e.g. some use RJ45 connectors, DMX-512 uses
either a cannon 5pin or 3pin connector.

If you are only talking about the simple 120R termination, then just put
a jumper to open one end of the Resistor.

Regards,

Kat.


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