Re: FO: I/O card with matching relay unit
- From: Robert Sneddon <fred@xxxxxxxxxxxxxxxxxx>
- Date: Sat, 8 Jul 2006 23:35:02 +0100
In message <12b0ab0jb5mmm6c@xxxxxxxxxxxxxxxxxx>,
=?UTF-8?B?UGFsaW5kcuKYu21l?= <me9@xxxxxxxxxxx> writes
It is probably going to be hard, if not impossible, to find anyone that
can use an ISA card these days
There are lots of older boxes that have at least a couple of ISA slots.
I figure anything this unit would be plugged into to, say, control a
model railway layout or similar, is not going to be the latest Alienware
gaming engine. In addition a lot of industrial computers used on the
factory floor and such still use ISA as it's well-proven and there's a
lot of kit out there that's been in production for twenty years or more.
- and a relay card that can't handle mains limits it even further.
Relays offer isolation triac circuits don't. If I wanted this to switch
mains on and off I'd use a separate second relay or triac circuit. The
3A/24V DC load capability will easily drive a separate mains relay,
keeping the 240V off the relay board's PCB.
--
To reply, my gmail address is nojay1 Robert Sneddon
.
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