I would like to know we have solution or not for the customer's question.
The customer willing to use ADM483. And they want to SUPERIMPOSING DC (+24V) on RS-485 half duplex line.
(And also separate DC and data after receive)
Is there anything solution that we have?
Actually, some video transmit equipment have such a function like as Power over Ethernet.
(example product as below)
B&H Photo Video
Thank you for your help as always.
The ADM483 has a Standard RS-485 A, B input common mode voltage range of -7V to +12 V.
The absolute maximum (DC) rating on the A,B pins is –9 V to +14 V.
Adding 24 V DC to the ADM483 A,B bus pins would not be possible.
Thank you for your response!
I understood that.
Mostly ADI parts cover -7V to +12V that I've checked on web also.
And also notice about A, B pins absolute maximum DC (up to +14V).