ABB Cylon FBXi Building Automation Controller Installation and Wiring Guide

This document provides installation and wiring instructions for the ABB Cylon® FBXi series of building automation controllers, including models FBXi-8R8-X96, FBXi-8R8-H-X96, FBXi-X256, and FBXi-X48. It covers power supply requirements, terminal descriptions, universal inputs, UniPuts™, relay connections, RS-485 BACnet® MS/TP and Modbus RTU ports, FLX bus expansion, indicator LEDs, Ethernet ports, service ports, push-button functions for reset and firmware upgrade, and the output override feature for the H-model.