The Honeywell TR100 Wall Module is an advanced and highly configurable device that provides a building automation solution well-suited for commercial applications. The TR100 can replace existing Honeywell Wall Modules using the tools already familiar to installers. Honeywell TR100 Wall Modules utilize Sylk™, a two-wire, polarity-insensitive communication technology. This device also supports BACnet™ MS/TP and Modbus™ communications via an RS-485 bus, which is prevalent in HVAC building control systems. In addition, these Modbus™ RTU, BACnet™ MS/TP, and Sylk™ protocols allow for future firmware updates and enhanced functionality. The HONEYWELL TR100 Wall Module works with Honeywell and third-party controllers and is not based on proprietary protocols.