Hi Friends .............

[555]

So What Is The real differance between M-Bus and F-Bus Cables :confused:

and please if anybody have anything about their circuits

thanks :D :D

[0x4E6F6B6961]

m bus has two wires: ground and m bus. the m bus wire is used for data transfer in both directions (sent data and recieved data use one wire)
f bus has 3 wires: ground, f bus RX and f bus TX. f bus RX is is used for data being recieved and f bus TX is used for data which is being transmitted.
as you should see from this, f bus connection is faster :)
for schemes...try here: http://www.szsz.com/DATA_CABLE_NOKIA/