IN770 Series by Intesis – HMS Networks: Advanced Gateway for HVAC Integration

IN770 Series by Intesis – HMS Networks: Advanced Gateway for HVAC Integration

With HVAC systems evolving toward increasingly connected and automated solutions, the IN770 Air Gateway Series by Intesis – HMS Networks emerges as a strategic component for the efficient integration of Mitsubishi Electric City Multi systems with leading Building Management System (BMS) platforms.

These multi-protocol gateways offer a reliable and scalable solution to ensure interoperability between HVAC systems and control networks based on Modbus TCP/RTU, KNX TP, BACnet/IP, BACnet MS/TP, and Home Automationprotocols.

Architecture and Available Licenses

The IN770 series is available in three models, differentiated by capacity and the number of supported units, making it adaptable to residential, commercial, and industrial contexts:

License activation allows the gateway's functionalities to be scaled according to project needs, while maintaining the same hardware base.

Native Multi-Protocol Integration

A key strength of the IN770 series is its simultaneous compatibility with multiple communication protocols, configurable via Intesis MAPS software:

• Modbus RTU / TCP

• KNX TP

• BACnet/IP and BACnet MS/TP

• Home Automation over Ethernet

Each device can be flexibly configured to support the required communication protocol, ensuring full interoperability with existing supervisory systems.

Compatibility with Mitsubishi Electric Systems

IN770 gateways are designed to integrate with Mitsubishi Electric City Multi units via connection to centralized controllers equipped with M-Net XML over Ethernet interfaces. Compatible controllers include:

• G-50, G-50A

• GB-50A, GB-50ADA

• AG-150A, AB-150, AE-200, AE-50

• EW-50, EB-50GU

Devices without Ethernet ports and controllers such as the AE-400 are not supported.

Gateway Operational Features

The IN770 gateway operates as a passive server on the BMS side and as an active client on the HVAC side, continuously monitoring the status of connected units. Key features include:

• Centralized control of HVAC groups (on/off, operating modes, fan speeds, vane positions, temperature)

• Access to specific signals from outdoor units

• Automatic detection and management of communication errors

• Energy consumption data acquisition per group or total

• Auto-discovery of units connected to the M-Net network

Hardware Characteristics

Each device in the IN770 series is designed for professional installation in control cabinets or electrical panels and includes a comprehensive set of ports and hardware features:

• EIA-485 connectors for Modbus RTU and BACnet MS/TP

• Ethernet port for Modbus TCP, BACnet/IP, Home Automation, and Mitsubishi controller connection

• KNX TP port with orange terminal

• USB Mini-B port for local configuration

• Three digital inputs for energy meter integration

• 14 diagnostic LEDs, DIP switches for RS-485 termination and polarization

• Power supply: 12–36 VDC or 24 VAC (SELV / LPS)

• DIN rail or wall mounting options

Configuration via Intesis MAPS

Configuration is handled through Intesis MAPS software, which enables:

• Import of preconfigured templates based on project type

• Full customization of gateway signals and parameters

• License and firmware management

• Real-time diagnostics of communication between the gateway, BMS, and HVAC system

Configuration can be performed via USB or Ethernet.

Benefits for System Integrators

For designers and system integrators, the use of the IN770 series enables:

• Centralized HVAC control within existing BMS infrastructure

• Elimination of multiple gateways or proprietary interfaces

• Reduced setup and commissioning time

• Full support for a wide range of protocols from a single device

The modular design and certified compatibility with major automation systems make it a reliable tool for projects where flexibility, interoperability, and reliability are essential.

Conclusion

The IN770 Air Gateway Series by Intesis – HMS Networks represents a state-of-the-art solution for integrating Mitsubishi Electric HVAC systems within professional BMS environments. With a full set of interfaces, scalable licensing, protocol flexibility, and simplified installation, it sets a new benchmark for HVAC automation in commercial, residential, and industrial applications.

The IN770 Series is available at MT Distribuzione. For technical information or support in designing your system, our technical team is available for dedicated consultations. Contact us for a tailored assessment.

MT Distribuzione Team