Communications protocols

The CGM and CVM controllers can communicate using

BACnet MS/TP, N2. or wireless Zigbee. The controllers

auto-detect the protocol that is connected, which enables

the same controller to support multiple communication

protocols without the need to purchase a special model

per protocol, and without extra manual setup.

The XPM expansion modules can communicate using

BACnet MS/TP, or wireless Zigbee® using a ZFR/ZFR Pro

Wireless Field Bus Router (on the FC Bus only). By default,

the XPM expansion modules communicate using the

BACnet MS/TP protocol.

The BACnet MS/TP protocol is a standard for ANSI,

ASHRAE, and the International Standards Organization

(ISO) for building controls.

The CGM and CVM controllers can be used as functional

replacements for legacy N2 controllers. The N2-capable

MS/TP equipment controller models provide a cost

effective upgrade and modernization path for customers

with existing N2 controllers.

The CGM and CVM controllers can also be installed in a

wireless application using a ZFR/ZFR ProWireless Field Bus

Router, see Related products.