Hardware Configuration Requirements

The N2 Protocol allows one master and up to 255 slaves on a common line. In the CIMPLICITY computer, the Johnson Controls N2 Bus Device Communications Enabler is the master.

The N2 bus is RS­485 based but uses special biasing to allow 50 nodes without a repeater. The Johnson Controls MM­CVT101­0 converter is required for adapting the CIMPLICITY computer's RS­232 serial port to the N2 bus.

More information

Custom cable.

N2 bus cabling.

About Johnson Controls N2 Bus Communications.