The ISMA-B-4TO-H is a multiprotocol I/O module that connects via RS485, supporting BACnet MS/TP and Modbus RTU/ASCII protocols. Its compact design suits installations with limited space while providing essential remote I/O capabilities. This module is well-suited for distributed building automation systems and enhances the connectivity and functionality of your existing infrastructure.

With four Triac outputs, the ISMA-B-4TO-H controls AC current silently, handling loads of up to 0.5 A per output. Each output features a manual override switch for direct control without software. This is useful in environments where immediate access to control is required.

Configuration is straightforward, with options for setup via BACnet, Modbus, or a dedicated free tool. A mini USB port allows for local testing and configuration without needing an external power supply. This design choice simplifies the commissioning process and reduces installation time.

The ISMA-B-4TO-H can connect up to 128 devices on a single bus, designed for scalability. Its compatibility with various controllers and BMS platforms means it fits into a wide range of applications, making it a versatile addition to any building automation project. This module expands your I/O capabilities and integrates easily into existing systems.