Have a look at the black box catalogue - if I underrstand your requiremen=
t
they have a 8 port RS232 expander


----- Original Message -----
From: "MILTON MEDICINTEKNIK KB" <milton.medicinteknik@TELIA.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, April 12, 2001 5:42 AM
Subject: [EE] A five-to-one RS 232 - cruncher - anyone ?


> Hello,
>
> A question: 5 different devices use RS 232 as a communication protocol
to/from a controller (or PC). I need to combine those lines to ONE RS 232
line.
>
> One way to do it is to use 3 PIC's with dual ports (or 6 single port
PIC's) or makbe "bit-bang" data, make up a que, and let one port become t=
he
"compressed" data stream further down the line.
>
> however...
>
> =CF have tried to find a commerciallay available box that is doing this
magic tric - and almost suceeded. I don't have time to design the thing, =
and
wonder if anyone out there know where I can buy one :=3D)
>
> NOTE: It must be a separate box. A multiple RS 232 comm card to a PC
doesn't count.
>
> Any hint appreciated. Thank you.
>
>
> Sven in Sweden
>
> --
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>
>

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