i m currently working on a caller id project. This is the ring detector circuit i found on internet, but i don't really understand how does the circuit work.
Can anyone tell me how does this circuit work? What is the function of 4N25 Optocouplers?
Can i connect telephone lines directly to the ring detector circuit without any protection circuit?
Can anyone tell me how does this circuit work? What is the function of 4N25 Optocouplers?
Can i connect telephone lines directly to the ring detector circuit without any protection circuit?