Well as some one has said information about what that Maplin unit
actually does is a little sparce. Looking at the "bigger picture" the
module is a "Velleman PMK160'1" but I think that is just the board
number rather than the kit number Velleman kit numbers start Kxxxx.
Can't get a sensible response from the Velleman US site ATM:
What ever it lives of 12v, has a SP CO relay output the board is
marked "24V AC/DC 3A Max", a tweaky pot marked "TRIG LEVEL", and a
Light Dependant Resistor.
Doesn't look to me like it connects to a POTS line to me, no line
isolation transformer. More likely you fix the LDR over an LED on your
mobile that flashes when you call it.
Dave. pam is missing e-mail
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