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OTC Gateways

DH2 WIRELESS GATEWAY

Serial Interface

DH2

HIGHLIGHTS

  • Wirelessly gather/distribute sensor data
  • Map I/O anywhere within the network
  • Modbus Master/Slave functionality
  • 1 configurable Serial/RTU port (RS232/RS485)
  • -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

Primary Data Collection Point

The OleumTech® DH2 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 1920-point register holding table. Third-party devices can access the data over the Modbus or LevelMaster ASCII protocol.

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.

Advanced Peer-to-Peer Networking

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.

Reliable, Trusted

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.

TECHNICAL SPECIFICATIONS

WIRELESS COMMUNICATIONS 
Radio Band∙ ISM Band (License-Free)
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 kpbs
Output Power (Max)∙ 900/915 MHz: 1000 mW; 2.4 GHz: 63 mW; 868 MHz: 25mW
Receiving Sensitivity∙ 900/915 MHz: -110 dBm @ 9600 bps, -100 dBm @ 115.2 kbps
∙ 2.4 GHz: -100 dBm @ 250 kbps / 868 MHz: -101 dBm @ 80 kbps
RF Range∙ 900/915 MHz: Up to 40 Miles / 64 km with Clear Line of Sight (Gateway to Gateway or I/O Module)
∙ 900/915 MHz: 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
∙ 868 MHz: Up to 5.2 Miles / 8.4 km with Clear Line of Sight
HARDWARE FEATURES 
Device Functionality∙ Serial 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
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∙ 9-30 Vdc
Average Power Input∙ 2 Watt
Power Consumption @12 Vdc∙ 900/915 MHz @ 1000 mW: Receive Avg 55 mA, Transmit Avg 312 mA
∙ 2.4 GHz @ 63 mW: Receive Avg 57 mA, Transmit Avg 117 mA
∙ 868 MHz @ 25 mW: Receive Avg 54 mA, Transmit Avg 64 mA
Power Consumption @24 Vdc∙ 900/915 MHz @ 1000 mW: Receive Avg 35 mA, Transmit Avg 175 mA
∙ 2.4 GHz @ 63 mW: Receive Avg 37 mA, Transmit Avg 63 mA
∙ 868 MHz @ 25 mW: Receive Avg 35 mA, Transmit Avg 46 mA
CERTIFICATIONS & COMPLIANCE 
EMC/EMI∙ FCC Part 15 (USA), IC ICES-003 (Canada), ACMA (Australia)
∙ AS/NZS CISPR 32 (Australia), EN55032 & EN55024 (EU)
Safety∙ Class I, Division 2, Groups A, B, C, D T4; Ex nA IIC T4
∙ Class I Zone 2 AEx nA IIC T4
∙ ATEX: Sira 14ATEX4143X; II 3 G Ex nA IIC T4 Gc
∙ IECEx: SIR 13.0055X; Ex nA IIC T4 Gc
GENERAL SPECIFICATIONS 
Operating Conditions∙ Temperature: Class I, Div 2 / Zone 2: -40 °C to 80 °C (-40 °F to 176 °F)
∙ Humidity: 0 to 99 %, Non-Condensing
Warranty∙ 2-Year Parts and Labor
Country of Origin∙ USA
ORDERING INFORMATION 
Model Numbers∙ WG-0900-DH2, WG-0915-DH2, WG-2400-DH2, WG-0868-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