IN775FGLXXSO000 – Intesis Fujitsu VRF SMALL gateway for KNX, Modbus, BACnet integration with BMS

IN775FGLXXSO000 – Intesis gateway for Fujitsu VRF systems (SMALL, XXS) integrating with KNX, Modbus TCP/RTU and BACnet/IP for BMS and building automation systems.

IN775FGLXXSO000 is an industrial communication gateway from the Intesis 700series Air Gateway line, designed for integration of Fujitsu VRF air-conditioning systems with building automation networks such as KNX, Modbus and BACnet. The gateway enables full bidirectional communication between VRF indoor/outdoor units and BMS or SCADA platforms, allowing both monitoring and control of key HVAC parameters. The SMALL (XXS) version supports up to 4 indoor units and 4 outdoor units, making it ideal for small and medium-sized commercial, office and hospitality projects.

The gateway provides complete HVAC integration with BMS, enabling control of key functions such as operation mode (cooling, heating, fan, dry, auto), fan speed, setpoint temperature, louver position, remote controller lock, and fault monitoring. It also provides feedback for room temperature and operational status. Communication through KNX, Modbus or BACnet protocols ensures seamless compatibility with standard building automation architectures. The configuration is performed using Intesis MAPS software, featuring automatic device discovery and real-time diagnostics.

The IN775FGLXXSO000 gateway includes multiple communication interfaces: Ethernet (10/100 Mbps) for Modbus TCP and BACnet/IP, RS-485 for Modbus RTU and BACnet MS/TP, KNX TP connection, and a USB Mini-B port for configuration. Additionally, it features three binary inputs that can be used to connect external sensors or signals such as presence detectors or general alarms. Fourteen LED indicators provide visual feedback for power, communication, and error states, while two DIP-switch blocks are available to enable RS-485 termination and polarization for stable communication in industrial networks.

The gateway includes 1000 VDC galvanic isolation between communication ports to ensure electrical protection and EMC reliability. The compact enclosure made of PC UL94 V-0 (light grey RAL 7035) supports DIN rail EN60715 TH35 or wall mounting. Power is supplied at 12–36 VDC ±10% or 24 VAC ±10%, with a maximum current consumption of 250 mA DC or 127 mA AC. The product meets CE, RoHS and WEEE requirements and comes with a 36-month manufacturer warranty.

Main features

• Integration of Fujitsu VRF systems with KNX, Modbus TCP/RTU and BACnet/IP, BACnet MS/TP
• Supports up to 4 indoor units and 4 outdoor units (SMALL / XXS version)
• Bidirectional communication – full monitoring and control of HVAC parameters
• Auto-discovery of VRF units via Intesis MAPS software
• 3 binary inputs for external dry contact signals
• 14 LED indicators and 2 DIP-switch blocks for RS-485 termination and polarity
• 1000 VDC galvanic isolation between communication ports
• Compact PC UL94 V-0 enclosure for DIN rail or wall mounting
• Dimensions: 90 × 106 × 58 mm; lightweight and durable design
• Compliant with CE, RoHS, WEEE standards
• 36-month manufacturer warranty

Technical specifications

Communication ports

• Ethernet: 1 × RJ45 10/100 Mbps (Modbus TCP, BACnet/IP)
• RS-485: 1 × 3-pin terminal (Modbus RTU, BACnet MS/TP)
• KNX: 1 × 2-pin terminal (KNX TP bus)
• USB Mini-B: configuration port (Intesis MAPS)
• Binary inputs: 3 × dry contact inputs

Power supply

• Voltage: 12–36 VDC ±10% or 24 VAC ±10% (50/60 Hz)
• Current consumption: max. 250 mA DC or 127 mA AC
• Isolation: 1000 VDC between communication ports

LED indicators and switches

• LEDs: 14 indicators for power, communication, and error diagnostics
• DIP-switches: 2 × blocks for RS-485 termination (120 Ω) and polarization

Enclosure and mounting

• Material: PC UL94 V-0, light grey (RAL 7035)
• Dimensions: 90 × 106 × 58 mm
• Weight: 205 g (330 g with packaging)
• Protection: IP20
• Mounting: DIN rail EN60715 TH35 or wall-mounted

Environmental conditions

• Operating temperature: 0…60 °C
• Storage temperature: −30…+60 °C
• Humidity: 5–95% RH (non-condensing)

Warranty and certifications

• Warranty: 36 months
• Certifications: CE, RoHS, WEEE
• Country of manufacture: Spain
• HS Code: 8517620000

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