The ISMA-B-4U4A-H is a compact multiprotocol I/O module tailored for building automation systems. It runs on RS485 communication and supports BACnet MS/TP and Modbus RTU/ASCII protocols, facilitating integration into existing setups. Its small dimensions enable installation in tight spaces where traditional modules may not fit.

This module includes four universal inputs, accommodating over 20 types of temperature sensors, along with voltage, resistance, current, and dry contact measurements. This flexibility suits various applications, from HVAC monitoring to general building management.

The ISMA-B-4U4A-H also features four analog outputs with 0-10 V DC control and a maximum load of 20 mA. Each output can be manually adjusted using dedicated potentiometers for local control. This capability is useful in environments requiring direct interaction with the system.

Configuration is straightforward with DIP switches for BACnet or Modbus communication, while rotary switches handle addressing. This setup cuts down installation time and simplifies the commissioning process. A mini USB port allows for initial configuration without needing an external power supply, enabling quick setup and local testing.

The ISMA-B-4U4A-H connects directly to controllers or integrates via Modbus gateways, making it a strong option for expanding control systems. Its compact design and multifunctional features position it as a vital component for efficient building automation.