DH2 WIRELESS GATEWAY

Serial Interface

DH2

HIGHLIGHTS

  • Wirelessly gather/distribute sensor data
  • Map I/O anywhere within the network
  • Modbus master/slave functionality
  • 1x configurable Serial port (RS232/RS485)
  • Class I, Division 2 (Zone 2)
  • -40 °C to 80 °C
  • 900 MHz or 2.4 GHz radio option
  • Secure AES encryption

Primary Data Collection Point

The OleumTech® “DH2” Wireless Gateway plays an integral role in the OTC Sensor & I/O Network by being able to wirelessly collect critical process data from OTC nodes including Wireless Transmitters, I/O Modules, and other Gateways. The data is stored in its 1920-point Modbus register holding table.

Serial Interface

With the provided RS232/RS485 configurable Serial port, the DH2 can virtually interface with any third-party Modbus device either as a Modbus master or slave device. The DH2 can also be configured as a LevelMaster ASCII slave or ROC Link master. OleumTech offers Serial I/O Expansion Modules for use with the DH2 for added functionality.

Peer-to-Peer Advanced Networking

In the OTC Sensor Network, multiple Wireless Gateways can be placed into the same network to form a much larger sensor network. All Gateways can have their own set of end nodes and they have the ability to communicate with other Gateways in the network. With this powerful advantage, you can setup a sophisticated I/O distribution system and migrate data with extreme flexibility, scalability and ease.

TECHNICAL SPECIFICATIONS

WIRELESS COMMUNICATIONS 
Type: 900 MHz / 2.4 GHz∙ ISM Band, Spread Spectrum
∙ 900 MHz: FHSS (Frequency Hopping), FSK, AES Encryption 256-bit (900 MHz), 128-bit (915 MHz)
∙ 2.4 GHz: DSSS (Direct-Sequence), AES Encryption 128-bit
Bit Rate∙ 900 MHz: 9600 bps / 115.2 kbps ; 2.4 GHz: 250 kbps
Output Power∙ 900 MHz: Up to 1000 mW; 2.4 GHz: 63 mW
Receiving Sensitivity∙ 900 MHz: -110 dBm @ 9600 bps, -100 dBm @ 115.2 kbps / 2.4 GHz: -100 dBm @ 250 kbps
RF Range∙ 900 MHz: Up to 40 Miles / 64 km with Clear Line of Sight
∙ 2.4 GHz: Up to 5.7 Miles / 9.2 km with Clear Line of Sight
HARDWARE FEATURES 
Device Functionality∙ Wireless Gateway
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)
Configuration∙ Config / Debug Port - RS232 Slave Only (RJ-45) / BreeZ® Software for PC
Device Diagnostics∙ Health Tag: Supply Voltage
MECHANICAL SPECIFICATIONS
Dimensions∙ 3.8" (W) x 3" (H) x 1.4" (D) / 96.5 mm (W) x 76.2 mm (H) x 35.6 mm (D)
Package Dimensions ∙ 8" (W) x 6" (H) x 2.5" (D) / 203 mm (W) x 152 mm (H) x 63 mm (D)
Package Weight∙ ~1 lbs / 0.4 kg
Mounting∙ DIN Rail Mountable with Height Adjustability
ELECTRICAL SPECIFICATIONS
DC Power Input∙ Starting from SN SM11266715: 9-30 Vdc; Prior to SN SM11266715: 9-24 Vdc
Average Power Input∙ 2 Watt
Power Consumption @ 12 Vdc∙ Idle: 85 mA; Configuration: 45 mA; Transmission: 350 mA
CERTIFICATIONS & COMPLIANCE 
EMC/EMI∙ FCC Part 15 (USA)
∙ IC ICES-003 (Canada)
Safety∙ Class I, Division 2, Groups A, B, C, D T4; Ex nA IIC T4
∙ Class I, Zone 2 AEx nA IIC T4 / 9-30 Vdc, Ta = -40 to 176 °F (-40 °C to +80 °C)
∙ ATEX: Sira 14ATEX4143X; Ex nA IIC T4 Gc
∙ IECEx: SIR 13.0055X; Ex nA IIC T4 Gc / 9-30 Vdc, Ta = -4 to 176 °F (-20 °C to +80 °C)
GENERAL SPECIFICATIONS 
Operating Conditions∙ Temperature: Class I, Div 2: -40 °F to 176 °F (-40 °C to 80 °C)
ATEX/IECEx: -4 °F to 176 °F (-20 °C to 80 °C)
∙ Humidity: 0 to 99 %, Non-Condensing
Warranty∙ 2-Year Parts and Labor
Country of Origin∙ USA
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ORDERING INFORMATION 
Model Numbers∙ 900 MHz: WG-0900-DH2; 2.4 GHz: WG-2400-DH2
Wirelessly Connects To∙ OTC Wireless Devices (Gateways, Transmitters, I/O Modules)
Configuration Cable∙ SX1000-CC2, 20-ft All-in-One Configuration Cable

DH2 WIRELESS GATEWAY

Serial Interface

DH2 WIRELESS GATEWAY

Serial Interface

DH2

HIGHLIGHTS

  • Wirelessly gather/distribute sensor data
  • Map I/O anywhere within the network
  • Modbus master/slave functionality
  • 1x configurable Serial port (RS232/RS485)
  • Class I, Division 2 (Zone 2)
  • -40 °C to 80 °C
  • 900 MHz or 2.4 GHz radio option
  • Secure AES encryption

DH2 WIRELESS GATEWAY

Serial Interface

DH2

HIGHLIGHTS

  • Wirelessly gather/distribute sensor data
  • Map I/O anywhere within the network
  • Modbus master/slave functionality
  • 1x configurable Serial port (RS232/RS485)
  • Class I, Division 2 (Zone 2)
  • -40 °C to 80 °C
  • 900 MHz or 2.4 GHz radio option
  • Secure AES encryption