Product: KF-DTU Gen1 Wireless DTU

One unit that combines a wireless RS485 serial server, a long-range DTU and a mesh private network node.

Overview

The KF-DTU Gen1 connects field devices that normally need RS485 cabling - sensors, meters, controllers and data loggers - into a wireless mesh. Each DTU provides RS485 and RJ45 Ethernet interfaces and supports TCP/UDP with Modbus RTU/TCP transparent transmission, so existing SCADA, PLC and monitoring software can keep working without protocol redesign.

Wireless and Mesh

• Wi-Fi HaLow (IEEE 802.11ah) Sub-1 GHz radio
• Bandwidth 2/4/8 Mbps selectable for the site condition
• Point-to-point up to 500 m; single hop through 4 floors
• Self-developed Mesh stack, up to 10 hops, millisecond forwarding
• Star, chain, ring and mesh hybrid topologies; 50+ nodes per network; 500+ sensors per network
• Up to 8 x 2.4G micro terminals per DTU for short-range point expansion

Field Design

The housing is rated IP65 for outdoor field use. Power is DC 4.7-16V wide voltage, which suits solar-plus-battery and varied field supplies. Transmit power is up to 10 mW. Management is by Web interface, AT commands and CLI/JSON. Full numbers are on the specifications page.

Private On-Site Network

The network is a private on-site network: devices form their own local mesh and data stays on site unless your own gateway forwards it to your platform. That model suits sites with no public-network coverage and projects that prefer local data handling. Deployment steps are on the deployment page.

Operating frequency is configured for the destination market and confirmed in writing before quotation and shipment. Type-approval documentation and test support are available on request.