sundance-communications.com/forum Forums TDM Business Telephone Systems Avaya - Lucent Telephones & Systems MFM Wiring Diagram

I've got a MLX16DP w/ MFM and was looking for a wiring diagram. I've got an external bell that used to work before I moved the phone system but after I moved it it doesn't seem to work. I left the wires from the phone, bell, and power pack the same as before (when it was working). I need to know from the phone sytem to the phone jack if there is anything special that needs to be done with that cat 5 wire. Thanks for all your help!

Just be sure you're using all 4 pairs, for an extension with an MFM. Since you said Cat-5, I would guess that you're 568-B at both ends.

Also make sure that you're back into the same logical ID as before.

You can always test the phone and MFM directly at the control unit.