DH3 Wireless Gateway

Specifications:

• Wirelessly gather/distribute sensor data
• Map I/O anywhere within the network
• Modbus Master/Slave functionality
• Ethernet connectivity facilitates IoT and IIoT implementations
• MQTT/Sparkplug B functionality
• Supports remote and local Over-the-Air (OTA) functionality for updating wireless devices (900 MHz only)
• 2 configurable Serial/RTU ports (RS232/RS485)
• Data logging capabilities / secure web server
• -40 °C to 70 °C (-40 °F to 158 °F)
• 900 MHz / 915 MHz / 2.4 GHz / 868 MHz
• Secure AES encryption
• Class I, Division 2 (Zone 2) certified
• Optional local display available
• Advanced peer-to-peer (P2P) communication functionality

Key Features:

• Hardware
  • Device Functionality:
    • Wireless Gateway with Ethernet/Serial Connectivity and Data Logging Capabilities
  • Embedded Controller:
    • 32-bit Power ARM Cortex-A9 core Microprocessor
    • Up to 800 MHz CPU Speed
  • Memory:
    • Flash Memory: 4 GB
    • SDRAM Memory: 512 MB
  • Ethernet:
    • MQTT*, Modbus TCP/IP Master/Slave
    • DHCP Client / Static IP (Designed to Work Behind Firewall)
    • Supports Local/Remote Device Configuration and Firmware Upgrade Using BreeZ® 5.0 or Higher
    • Supports Auto-MDIX / Auto-Crossover for ad-hoc networking (PC directly to DH3)
    • 2 RTU Ports (RS232/RS485 Software Configurable)
  • Serial Interface:
    • Modbus Master/Slave
    • LevelMaster ASCII Slave
    • ROC-Link Master (Supports Opcodes 17 and 10)
    • ROC: Read up to 10 User Configurable (TLP) Points, INT16 (signed/unsigned) or FLOAT
  • USB Ports:
    • 2 USB 2.0 Host Ports: Reserved for Future Use
    • Mini-USB (OTG): Supports Local Device Configuration and F/W Upgrade Using BreeZ® 5.0 or Higher
  • Micro SD Card Slot:
    • Only Use Industrial-Grade Micro SD Cards
    • Recommended Part #: SX1000-SD2 (Operating Range: -40 °C to 70 °C)
  • Device Diagnostics:
    • Health Tag: Supply Voltage

• Data Logging
  • General:
    • Records Data to Internal RAM
    • MicroSD Card Option for Data Persistence
  • Trending (RAM / MicroSD):
    • 800,000 Points Max (Regardless of Memory Capacity)
    • Supports Multiple Trends
    • Exportable to .CSV
  • Event Logging (RAM / MicroSD):
    • 100,000 Points Max (Regardless of Memory Capacity)
    • Event Types: Rising or Falling Edge
    • Event Control: Deadband or On-Delay
    • Exportable to .CSV
  • System Logging (RAM / MicroSD):
    • 100,000 Points Max (Regardless of Memory Capacity)
    • Viewable on Web Server or Local Display

• Web Server
  • Features:
    • View Modbus Data, Trends, Event and System Logs
    • View Device and Network Settings
    • Additional Monitoring Functions
  • Security / Privacy:
    • Role-Based Authentication (Admin / User / Guest)
    • HTTPS Support

Wireless Communications:

• Radio Band:
  • ISM Band (License-Free)
• Frequencies and Technologies:
  • 900 MHz / 915 MHz:
    • Modulation: FHSS, FSK
    • Encryption: AES 256-bit (900 MHz), AES 128-bit (915 MHz)
  • 2.4 GHz:
    • Modulation: DSSS
    • Encryption: AES 128-bit
  • 868 MHz:
    • Modulation: LBT-AFA
    • Encryption: AES 128-bit
• Bit Rate:
  • 900/915 MHz: 9600 bps / 115.2 kbps
  • 2.4 GHz: 250 kbps
  • 868 MHz: 80 kbps
• Output Power (Max):
  • 900/915 MHz: 1000 mW
  • 2.4 GHz: 63 mW
  • 868 MHz: 25 mW
• Receiving Sensitivity:
  • 900/915 MHz:
    • -110 dBm @ 9600 bps
    • -100 dBm @ 115.2 kbps
  • 2.4 GHz: -101 dBm @ 250 kbps
  • 868 MHz: -106 dBm @ 80 kbps
• RF Range (Clear Line of Sight):
  • 900/915 MHz:
    • Gateway to Gateway: Up to 40 Miles / 64 km
    • Transmitter to Gateway: Up to 7500 Feet / 1.4 Miles / 2.3 km
  • 2.4 GHz:
    • Gateway to Gateway: Up to 4.3 Miles / 7 km
  • 868 MHz:
    • Gateway to Gateway: Up to 5.2 Miles / 8.4 km

Use Cases:

• Industrial data acquisition and logging
• Real-Time Process Monitoring & Control
• Oil and gas automation
• IIoT Integration