Re: X-10 Appliance modules- more than just a relay?

[Williams Christopher C <CCWILLIAMS@xxxxxxx>]

I am a novice at this but as far as I can remember from the instructions
(I may be getting confused with the lighting module here!) you can make
a module switch on by switching the load off and then on again using its
own power switch.  For this to work the module must be passing a small
current through the load to sense the open and closed circuit
conditions.

Cheers,

Chris Williams

> -----Original Message-----
> From:	Nigel Orr [SMTP:nigel.orr@xxxxxxx]
> Sent:	Monday, January 31, 2000 9:16 AM
> To:	ukha_d@xxxxxxx
> Subject:	[ukha_d] X-10 Appliance modules- more than just a relay?
>
> I've got an X-10 query (gasp!) for someone who knows about the
> internals of
> an appliance modules... I've got one AM12U, which I assumed switched
> the
> load with a relay (from the clicking sound!).  However, we bought one
> of
> the little Electroluminescent night lights at the weekend, and it
> glows
> dimly even when the appliance module is switched off, round about 1/2
> normal brightness.
>
> I realise the nightlight doesn't need much power (about 200mW if my
> calculations are right), but if it's just a relay in the appliance
> module,
> it shouldn't even get that.
>
> Is it just leakage in some noise suppression components across the
> relay
> contacts that is lighting it (<1mA)?
>
> It's not particularly critical, I'm just curious, but if someone
> doesn't
> know the answer I'll have to disassemble it myself...
>
> Nigel
>
>
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