Interconnecting classic computers
ard at p850ug1.demon.co.uk
Tue May 6 16:42:10 CDT 2008
> It were me, I'd probably look into Bluetooth- or Zigbee-based serial
Yes, I have, and still am, considerign those. Somebody else suggested the
Xee module, I had haeard of that. But do any of them work without any
flow control lines back to the host? The simple radio module (on the
433MHz band) that I looked at certainly eneded the RTS/CTS flow control
or something equivalent.
> While this doesn't meeet your usual criteria for being able to repair
> the device, it might be viable for you on the theory that the devices
I did say that was a 'bonus' here, not required :-)
> In the long cable division, there are a number of products around that
> extend rs232 by using baluns at each end, and cat-5 cable for the bulk
My junk box cotnains at least 2, (and I think 4) Gandalf LDS120 units.
These are 'limited distance modems' or some such, they were designed to
transmit data up to 9600 baud over, I think, leased lines. They are built
fro mthe sort of technology I like (op-amps, LM339 comparators, maybe
simple logic chips), and certianly could be used for this. A piece of
4-core telephone cable will work with these up to any distance I am
likely to need.
> of the run. Still commits bondage on the cat :), but works around the
And that's the problem. I can tell my parents 'There's a serial cable at
tripwire-height across the stairs', but I can't tell the cat that I've
run run across the cat flap :-).
But it may well be what I use for the moment...
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