X10 Community Forum

🖥️ActiveHome Pro => ActiveHome Pro General => Topic started by: john whinery jr on October 24, 2005, 08:38:19 PM

Title: AHPro - Using the CM15A with WS467 Switch
Post by: john whinery jr on October 24, 2005, 08:38:19 PM

I recently bought the AHPro setup and 2
ws467 Remote Dimmer Switches.  After
setting everything up I tested the command
structure and was able to turn my lights on
via the computer but I can not turn them
off.  Any ideas?

Title: Re: AHPro - Using the CM15A with WS467 Switch
Post by: Charles Sullivan on October 24, 2005, 09:46:39 PM

There's a known problem with X10 signals
whereby if the signal is reduced to a
marginal level by RF noise or low impedance
loads on the power line, it may be strong
enough to turn a lamp module on.  But then
the additional load by the lamp drops the
signal level sufficiently further that it's
not enough to turn the module off.

PC power supplies and UPS units often present
a very low impedance to the line or add RF
noise on the line.  Try running a long
extension cord from another room and plugging
the CM15A into the extension cord.  See if it
makes any difference.  If so, you probably
need to add an X10 filter between your PC and
the power line.

Title: Re: AHPro - Using the CM15A with WS467 Switch
Post by: SteveRF on October 25, 2005, 04:20:09 PM

I had a similar problem.  The solution for me
was to install a 220vac passive filter near
an inside breaker box.  The X10 signal was
then available on both houses phases.  I also
have a spare computer that I did not use
often but when connected to power (even when
off) seemd to be a magnet for X10 signals.
Unplugging that puppy did the trick.  I will
have to purchase a filter if I ever need to
leave it plugged in.
SteveRF