CET Electric Technology
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Appendix D N2 Implementation
The PMC-53A with Firmware V1.00.03 or later supports the JCI's Metasys N2 protocol, in addition to
BACnet MS/TP, which allows it to connect directly to the Metasys N2 Network. The user can select the
desired protocol via the Front Panel's COMM menu. The N2 protocol assigns key analog parameters to
ADF points. The Command Register with override capability is used to reset groups of parameters held
in the device.
Before integrating the PMC-53A into a Metasys N2 Network, please make sure that all N2 devices are
configured, started and running properly. No more than 32 N2 devices should be connected to an NCM’s
N2 Bus segment, and no more than 100 N2 devices when repeaters are used. There are no additional
communication setup parameters for the Metasys N2 protocol.
1200/2400/4800/9600*/19200/38400
* Default
1) Supported N2 Commands
Always respond with No COS Poll Response
Always respond with No COS Poll Response
Only used to override the Command Register. When an unsupported
command is received, the PMC-53A will respond with the Undefined
Command Error Code 0x01.
2) Map Table
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