Hi guys, this is my first post so please go easy if I don't conform to etiquette!
I'm looking to use a logic IC to AND two signals, the output of this will drive a relay which will signal my main control panel.
At the moment all 3 signals (2 inputs, 1 output), are potential free or 'dry', I will obviously have to bring the Vcc through the inputs to drive the logic circuit, the issue I have is that these input switches are some distance away, sometimes over 30M and run in 1.5mm copper FP cable. I expect that the voltage loss over these distances will bring my signals outside the logic high range and will be useless.
Would I have to introduce a higher voltage and use additional relays to switch my inputs or is there another solution you can recommend?
I have 24VDC available, I would be using a regulator to drive the Vcc line.
Many thanks.
C.
I'm looking to use a logic IC to AND two signals, the output of this will drive a relay which will signal my main control panel.
At the moment all 3 signals (2 inputs, 1 output), are potential free or 'dry', I will obviously have to bring the Vcc through the inputs to drive the logic circuit, the issue I have is that these input switches are some distance away, sometimes over 30M and run in 1.5mm copper FP cable. I expect that the voltage loss over these distances will bring my signals outside the logic high range and will be useless.
Would I have to introduce a higher voltage and use additional relays to switch my inputs or is there another solution you can recommend?
I have 24VDC available, I would be using a regulator to drive the Vcc line.
Many thanks.
C.