ecerulz Posted July 27, 2004 Report Share Posted July 27, 2004 I don't know how to design a PBX. Can you help me design a 3-telephone line private branch exchange circuit? Quote Link to comment Share on other sites More sharing options...
ahsan1 Posted August 15, 2004 Report Share Posted August 15, 2004 for a simple PBX, you need the following stuff1) 3 SLIC (88500)2) Analog switch (8816)3) DTMF receiver (8870)4) Tone detector and external line circuit5) Tone generator (sine wave generator 300-400 hz)6) Controlling device (micro-controller)first go through all these thing and get the basic idea, then move toward designing. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.