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+--- Thread: Technical consultation connection KC868-A16 (/showthread.php?tid=5986)
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Technical consultation connection KC868-A16 - JulioVillamizar - 06-26-2024
Hello.
I am interested in purchasing a KC868-A16 board to connect the programmable outputs (PGM) of a DSC Neo Alarm Center to the digital inputs (dry contacts) of the KC868-A16.
My question stems from the fact that the PGM outputs of the DSC Neo deliver a negative referenced to the 12v positive of the same board.
And to connect this directly to the KC868-A16 I would have to put a relay in the middle but this is not feasible.
The other solution is to know if I can disconnect the 12v from the KC868-A16 in the input optocouplers and directly insert the 12 from the DSC Neo.
Could you confirm if this is viable at the board level?
RE: Technical consultation connection KC868-A16 - admin - 06-27-2024
i think you just use your device and KC868-A16 with same 12V power supply is ok. not need to cut wire.
RE: Technical consultation connection KC868-A16 - deanfourie - 06-28-2024
The PGM is negative switched correct?
If so then wiring as per your diagram should work as far as I can see, just make sure you have a negative reference.
RE: Technical consultation connection KC868-A16 - admin - 06-28-2024
if your board 0v is GND, just connect your board and A16 power two "GROUND" together.
RE: Technical consultation connection KC868-A16 - RvK - 07-09-2024
I have Tasmoto running on my board but the inputs do not work. I suspect the the polarity of the optocoupler input is incorrect.
Can somebody tell me why input do not respond?
RE: Technical consultation connection KC868-A16 - admin - 07-09-2024
you need tell us details, which board you are using? how you config in tasmota? how you trigger digital input , short input with gound?
RE: Technical consultation connection KC868-A16 - RvK - 07-11-2024
Ah yes, Of cause. That is: KinCony 16 Channel Relay Board (KC868-A16)
Device 1+ 2 outputs, Devices 3 + 4 are inputs.
Inputs connected to ground to signal high/low.
Correct?
If the input is to ground than the bottom diode will be used in optocoupler. Meaning no light is emitted. So no signal transfer.
RE: Technical consultation connection KC868-A16 - admin - 07-11-2024
take a photo of A16 PCB, how you wire.
RE: Technical consultation connection KC868-A16 - RvK - 07-11-2024
How can I add a photo?
RE: Technical consultation connection KC868-A16 - admin - 07-11-2024
take a photo , post at here.