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The OleumTech® DH1 Wireless Gateway plays an integral role in the OTC Wireless Sensor and I/O Network. 

It possesses the ability to aggregate data from OTC wireless transmitters and I/O modules onto its 320-point register holding table. 

Third-party devices can access the data over the Modbus or LevelMaster ASCII protocol.

With the provided RS232/RS485 configurable Serial port, the DH1 can virtually interface with any third-party Modbus device either as a master or slave device. 

The DH1 can also be configured as a LevelMaster ASCII slave or ROC Link master. 

Its dedicated RS485 port (RJ-45) can be utilized for connecting to another Serial device.

Deploy multiple gateways to the OTC platform, creating a custom, highly scalable network. 

The gateways have the ability to communicate with one another. 

Leverage the peer-to-peer technology and funnel data to the primary gateway, optimizing network efficiency and/or designing an extremely flexible I/O mapping system across the entire wireless network.

The DH1 is equipped with onboard I/O, comprised of 4 analog inputs (0-5 Vdc), 2 digital inputs, and 2 digital outputs. 

If additional I/O points are needed, integrate the OleumTech RS485 Modular I/O Expansion System with the DH1 or any other gateway for added versatility.
Features
  • Wirelessly gather/distribute sensor data
  • Map I/O anywhere within the network
  • Modbus Master/Slave functionality
  • 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

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Specifications

Device Functionality

  • Serial Wireless Gateway with On-Board I/O

Serial Interfaces

  • RS-485 Expansion Port - Modbus Master or Slave (RJ-45)
  • Modbus Master/Slave, LevelMaster ASCII Slave, ROC-Link Master (Supports Opcodes 17 and 10)
  • RTU Port (RS-232/RS-485) Terminal Block

I/O Interfaces

  • Devices for Controlling External Devices (Valves, Relays, etc.)
  • 2 Open-Drain Outputs (Imax = 240 mA (Continuous Sink Current @ 80° C), Vmax = 24 Vdc)
  • 2 Discrete Inputs (0-24 Vdc) for Dry Contact Relay or Open-Drain Output Devices
  • 4 Analog Inputs (0-5 Vdc) with 12-bit ADC

Wireless Communications

  • 868 MHz: LBT-AFA, AES Encryption 128-bit
  • 2.4 GHz: DSSS, AES Encryption 128-bit
  • 900 MHz / 915 MHz: FHSS, FSK, AES Encryption 256-bit (900 MHz), 128-bit (915 MHz)
  • Radio Band: ISM Band

Certifications & Approvals

  • Class I Zone 2 AEx nA IIC T4
  • Class I, Div. 2, Groups A, B, C, D T4, Ex nA IIC T4
  • AS/NZS CISPR 32 (Australia), EN 55032 & EN 55024 (EU)
  • FCC Part 15 (USA), IC ICES-003 (Canada), ACMA (Australia)
  • ATEX: Sira 14ATEX4143X, II 3 G Ex nA IIC T4 Gc
  • IECEx: SIR 13.0055X, Ex nA IIC T4 Gc

Documentation

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