...The best would be for the PMX500 people to cough up a system schematic, since you're a "paying customer". Maybe there is one inside the opener housing. I'm sure there are signals inside the unit that could be used without modification, if we only knew where they were.
...Lacking that I'd need to know what current flows through the sensing box when the voltage is at the high level and at the low level. You'd need an ammeter to measure this, clamp-on or otherwise. Or, you could use a low value sensing resistor in series with the box and measure the voltage change across it.
...I'm still not sure how to interface to the wireless chime thing you mentioned; my gadget would provide relay contacts that could be used to set off an audible or visual indicator.
...Photos may help, closeups of terminal labelling and distance shots.

 

hi everyone
I am new to this chat and would like a helping hand from the experienced to help me out understand the what X CUT TRACK means in the circuit attached. I tried to connect the circuit exactly as it is wired but it didnt seem to work properly. All lights were on at the same time instead of functioning each one on its own to fulfill the purpose it is built for , as I traffic lights controlling circuit.
any help would be appreciated.

 

hi everyone
I am new to this chat and would like a helping hand from the experienced to help me out understand the what X CUT TRACK means in the circuit attached. I tried to connect the circuit exactly as it is wired but it didnt seem to work properly. All lights were on at the same time instead of functioning each one on its own to fulfill the purpose it is built for , as I traffic lights controlling circuit.
any help would be appreciated.

 

Huh????? You might want to start a new thread Muhammad!

Aaron

 

Looking at the manual, there are only two wires going to both the "source" and "sensor" which leads me to believe that the "AC" you are measuring is a square wave. They must pass both data and power on these two wires to the "source" and "sensor". The "jump" in voltage that you measure may just be a data burst on the line. A little experiment for you. Measure the "AC" voltage going to the STBs while using the remote opener to open/close the door and see what happens then.

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This is getting pretty messy pretty fast. . .