The ISMA-B-4O-H is a multiprotocol I/O module designed for remote I/O over IP. It supports BACnet IP and Modbus TCP/IP protocols, making it a fit for modern building automation systems. Its compact dimensions make it suitable for installations with limited space, while the 8 A relay outputs provide reliable control of high-power loads.

This module includes four digital outputs, each with NC/NO relays. Built-in manual override switches enable direct control, allowing operators to manage connected devices flexibly. This feature is useful in environments where immediate manual intervention is necessary.

The ISMA-B-4O-H streamlines installation and configuration. Users can set it up via BACnet, Modbus, or a free configuration tool. It can also be powered through a USB port, which assists with local testing and quick updates. An RS485 transceiver allows communication with up to 128 devices on a single bus, increasing its versatility in larger setups.

This module works with various building management systems and integrates easily into existing infrastructures. It provides essential I/O capabilities for both new installations and upgrades without complicating the overall system.