what is the difference between m-bus and regular dlr-3 cable?

[scooter]

can anyone help me?

[phonedudes]

Not sure what type of answer your looking for...whether it be technical (circuit schematic difference or function difference) but
basically the DLR-3 uses the FBus type protocol and is for mainly CDMA models with built in Modems for DATA connectivitiy to the PC.
Mbus is not full duplex and is a slower transfer method used for svc software,logos,phonebook, rings etc...

PHONEDUDES :) :grin: :)