The ISMA iSMA-B-12O-H (Modbus RTU/ASCII, BACnet MSTP) is an I/O module tailored for building automation systems, featuring twelve digital outputs for direct control of field devices. It supports Modbus RTU/ASCII and BACnet MSTP protocols, ensuring compatibility with various controllers and BMS platforms.

This module employs an RS485 communication interface for reliable data transmission. Each output can manage loads of up to 230 V AC and 3 A, suitable for applications in HVAC and energy management systems. The Hand-Off-Auto (HOA) switches enable manual override, providing operational flexibility during maintenance and commissioning.

Installation is simple, thanks to its compact design that optimises space within control panels. Configuration involves DIP switch settings for protocol selection and rotary switches for addressing. A built-in mini USB port facilitates initial setup without requiring an external power supply. The ISMA iSMA-B-12O-H serves as a dependable choice for specifiers and integrators needing a solution for modern building automation.