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.
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Custom cable. |
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N2 bus cabling. |
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About Johnson Controls N2 Bus Communications. |
