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[mostafa]

I need to learn more about powe module principle of operation and the differance between power module and light module?

[steven r]

Why did you set up a poll for this question?

Basically a lamp module will allow dimming of a lamp and will respond to an "All Lights On" command. The appliance module, on the other hand, is non dimming and is used when dimming is not needed or recommended. It doesn't respond to an "All Lights On" command.
Both respond to an "All Units Off" command.

[Brian H]

I removed the poll as it looked like it may have been an error.

Your question was not 100% clear; but I believe you wanted the data on differences between a Lamp Module and a Wireless camera addressable power supply.
Camera power supplies are turned on and off by X10  power line signals.
They work in groups of 4 all with the same House Code and different Unit code. Groups are 1-4; 5-8;9-12 and 13-16. That is if you have a set of 4 cameras. C1 C2 C3 and C4. Turn on C1 and C2 C3 and C4 all turn off so that they do not interfere with each other. If you have more than 4 cameras then there is a camera remote that can do more than 4 and I believe some of the X10 software can also control more than 4 cameras.

[mostafa]

[/color]thank you very much for your reply
my qusestion dont relate to special device put I need to know more abuot module (power and light)
are this module contains splitter?(as ADSL splitter)
what about the frequency of the control signal which is superimposed on sin wave electrical signal?is this freq. higher or lower than the electrical signal?
what is the effect of the control signal on the fundamental signal(electrical signal)?

[Brian H]

Lots of data in the following web sites.
http://jvde.us/x10_troubleshooting.htm
http://www.act-solutions.com/PCC/uncle.htm
http://www.idobartana.com/hakb/index.htm
http://kbase.x10.com/wiki/Main_Page

[mostafa]

It is very helpful links.
very nice work.
thank you.

[Brian H]

Glad it helped and you find what you need. If not just post more questions.