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WD140 IOT Terminals

Connecting Industrial Equipment to the IoT World

WD140 Data Terminal

Interfaces

1x Serial | 2AI / 1DI / 1DO | 12‑bit ADC

Network

LoRa 12KM | 4G CAT1

Data Acquisition

Analog / Digital | Pulse Counting

Reliability

-40~85°C | 5‑35V DC

WD140 Data Terminal

WD140

supports LORA or 4G wireless serial port transpare

Key Parameters

  • Hardware: 32‑bit Arm Cortex‑M4, 1x RS232/485 serial port, 2AI‑1DI‑1DO, 12‑bit ADC
  • Networking: 4G CAT1 (LTE), LoRa (12KM, 410~493MHz / 850~930MHz)
  • Data Collection: Analog (0‑10V, 4‑20mA), digital (dry/wet contact), fast pulse counting
  • Local Transparent: LoRa wireless serial transparent transmission, point‑to‑point / point‑to‑multipoint
  • Cloud Access: MQTT over 4G, connect to WideIOT Cloud, AWS IoT, Azure, private platforms
  • Industrial Design: -40~85°C operating temp, 6‑35V DC, IP30, fanless, 260g

Key Features

Advanced capabilities designed for industrial IoT applications

Rich IO Acquisition Interface

  • 2‑channel 12‑bit high‑precision analog input (current/voltage optional: 4‑20mA, 0‑20mA, 0‑5V, 0‑10V)
  • 1‑channel optocoupler isolated digital input (0‑60V), supports dry/wet contact and fast pulse counting
  • 1‑channel optocoupler isolated digital output (<1A load), suitable for small signal control
  • Multiple ranges and multiplier calculations supported for analog inputs
IO Interfaces
LoRa Transmission

Wireless LoRa Transmission

  • High‑power LoRa chip: up to 30dBm transmit power, 12KM line‑of‑sight communication
  • Dual frequency bands: 410~493MHz (domestic) / 850~930MHz (overseas), configurable channels and air rate
  • Supports point‑to‑point and point‑to‑multipoint data transparent transmission, coexisting interference‑free

Standard Modbus RTU & 4G Cloud

  • Native Modbus RTU protocol for local I/O control and data acquisition over RS232/485
  • 4G CAT1 uplink: upload serial/IO data to cloud platforms via MQTT (WideIOT Cloud, AWS, Azure, etc.)
  • Flexible topology: wired serial, wireless LoRa, or 4G direct to cloud
Modbus and 4G
Industrial Reliability

High‑Reliability Industrial Design

  • Wide voltage 6‑35V DC, wide temperature -40~85°C, suitable for harsh environments
  • Isolated RS232/485 with 15KV ESD protection, optocoupler isolated digital inputs
  • Precise reference voltage and high‑reliability circuit design

Ready to Connect Your Remote Devices?

Our experts are ready to help you find the perfect solution for your industrial needs.

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