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Products ​

Welcome to the Yanji industrial connectivity catalog. This page summarizes two core hardware families—DTU/RTU gateways for edge-to-cloud data transmission and Y301 I/O modules for field signal aggregation. Use it as a quick launchpad to dive into the detailed specifications and technical manuals under each series.

DTU & RTU Portfolio ​

Highlights ​

  • Palm-sized Mini DTU (Y201) options for 4G, Wi-Fi, Ethernet, and LoRa uplinks while keeping legacy RS485/RS232 wiring intact.
  • Standard DTU (Y202/Y204/Y208) models add multi-port serial fan-out plus industrial-grade power protection and watchdog redundancy.
  • Built-in Modbus polling, JSON uplinks, MQTT/HTTP/TCP channel management, remote diagnostics, and firmware upgrade paths across the lineup.

MiniLink spans the Y201 mini DTUs (G/W/R/L) and the ultra-compact Y301-110/200/020 I/O blocks, engineered for rapid cabinet retrofits, OEM controllers, and edge panels:

  • Unified 77 mm-class enclosure with dual mounting (DIN clip + panel ears) for consistent cabinet layout.
  • Shared RS485/RS232 serial core paired with LTE, Wi-Fi, Ethernet, or LoRa uplinks so field crews can pick the optimal backhaul.
  • Common Modbus-transparent firmware layer with JSON telemetry, remote diagnostics, and OTA/USB lifecycle tooling.

👉 For SKU comparison, wiring topologies, and AT/Modbus examples, see the MiniLink Series Guide.

DTU/RTU Family at a Glance ​

  • Mini DTU (Y201): Palm-sized 4G/Wi-Fi/Ethernet/LoRa gateways keeping legacy serial wiring intact.
  • Standard DTU (Y202/Y204/Y208): Multi-port fan-out with redundant watchdogs and hardened power domains.
  • Tooling: Shared AT command set, Modbus polling-to-JSON pipeline, OTA/USB upgrade flow.

👉 Dive into model tables, pinouts, and manuals on the DTU & RTU index.

Y301 I/O Modules ​

Highlights ​

  • Unified Modbus-RTU register philosophy across DI/DO/AI/AO variants with configurable addressing, baud rates, and automation rules.
  • Opto-isolated inputs, relay/SPDT outputs up to 10 A, and optional analog conditioning for voltage, current, or pulse counting signals.
  • Works with PLCs, and SCADA platforms for rapid deployment in HVAC, power, building automation, and OEM controls.

Y301 Family Overview

  • Digital/analog mix-and-match: relay SKUs (220/222/440/444/880), compact single-function units (110/200/020/600/800), analog-focused models (00G/0004/0006/0008).
  • One Modbus-RTU template across DI/DO/AI/AO variants with configurable addressing, pulse counting, and retention policies.
  • Accessories, register maps, and wiring diagrams are consolidated on the Y301 I/O index.