Communications Protocols

The CG series controllers can communicate using

BACnet MS/TP, N2. or wireless Zigbee®. By default,

these controllers communicate using the BACnet MS/

TP protocol. The BACnet protocol is a standard for ANSI,

ASHRAE, and the International Standards Organization

(ISO) for building controls.

The CG series 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. For installation and

commissioning support, and tips for efficient and safe

replacement, refer to the Modernization Guide for Legacy

N2 Controllers (LIT-12012005) and the controller-specific

documentation. For information about mapping N2

Objects in controllers with switchable communications

protocols, refer to the N2 Compatibility Options chapter of

the Controller Tool Help (LIT-12011147).