DH1 Wireless Gateway

Specifications:

• Wirelessly gather/distribute sensor data
• Map I/O anywhere within the network
• Modbus Master/Slave functionality
• Supports local Over-the-Air (OTA) functionality for updating wireless devices (OTA Link Adapter required, 900 MHz only)
• 1 configurable Serial/RTU port (RS232/RS485)
•  1 dedicated RS485 port (RJ-45)
• 4 analog inputs (0-5 Vdc)
• 2 discrete inputs
• 2 discrete outputs
• -40 ˚C to 80 ˚C (-40 ˚F to 176 ˚F)
• 900 MHz / 915 MHz / 2.4 GHz / 868 MHz
• Secure AES encryption
• Class I, Division 2 (Zone 2) certified
• Advanced peer-to-peer (P2P) communication functionality

Key Features:

Hardware

• Device Functionality
  • Serial Wireless Gateway with Onboard I/O
• Embedded Controller
  • 32-bit Low Power ARM7 Microcontroller with Internal FLASH (Field Upgradeable)
• Serial Interfaces
  • RTU Port (RS232/RS485) Terminal Block
  • Modbus Master/Slave, LevelMaster ASCII Slave, ROC-Link Master (Supports Opcodes 17 and 10)
  • RS485 Expansion Port – Modbus Master or Slave (RJ-45)
• I/O Interfaces
  • 4 Analog Inputs (0–5 Vdc) with 12-bit ADC
  • 2 Discrete Inputs (0–24 Vdc) for Dry Contact Relay or Open-Drain Output Devices
  • 2 Open-Drain Outputs
    • Imax = 240 mA (Continuous Sink Current @ 80 °C)
    • Vmax = 24 Vdc
    • For controlling external devices (valves, relays, etc.)
• Configuration
  • Config / Debug Port – RS232 Slave Only (RJ-45)
  • BreeZ® Software for PC

Wireless Communications:

• Radio Band
  • ISM Band (License-Free)
• Frequencies and Modulation:
  • 900 MHz / 915 MHz:
    • FHSS, FSK
    • AES Encryption: 256-bit (900 MHz), 128-bit (915 MHz)
  • 2.4 GHz:
    • DSSS
    • AES Encryption: 128-bit
  • 868 MHz:
    • LBT-AFA
    • AES Encryption: 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:
  • 900/915 MHz:
    • Up to 40 Miles / 64 km with Clear Line of Sight (Gateway to Gateway)
    • Up to 7500 Feet / 1.4 Miles / 2.3 km with Clear Line of Sight (Transmitter to Gateway)
  • 2.4 GHz:
    • Up to 4.3 Miles / 7 km with Clear Line of Sight (Gateway to Gateway)
  • 868 MHz:
    • Up to 5.2 Miles / 8.4 km with Clear Line of Sight (Gateway to Gateway)

Use Cases:

• Industrial automation
• Process control
• Oil and gas monitoring