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Q-Net Blocks

The heart of Q-Net is its RS-485 network, which additional components even full sensor stations to be added on at any stage along the network. The character of the RS-485 interface makes expansion of a system effortless, and simplifies the dissemination of collected data.
  

 
Q-Net Modules

Each Q-Net station includes a NEMA 4X enclosure called a StationPac, which houses the Q-Net modules and auxiliary equipment. For added protection, the Q-Net modules are housed withing the StationPac. There are five Q-Net modules in all, which together control the operation of a Q-Net system.

  • The Sensor Interface (QSI) obtains data from either analog or digital sensors.
  • The Network Controller (QNC) controls overall operation of the system and provides a data interface to host systems. For on-site data logging, an optional removable Data Archive Card is available.
  • The Relay/Telemetry (QRT) modules allow data to be transmitted to a remote location off the Q-Net via any of the telemetry devices.
  • The Analog Readout (QAR) provides analog outputs of sensor data to allow the use of analog recorders and displays with a system.
  • The Power Supply (QPS) regulates dc power to the system components.
  • Power input can be 12 Vdc, battery and/or solar panels, 110 or 230 Vac, 50/60 Hz.
  • These five modules provide the flexibility that is the basis of the Q-Net concept. In practice, not every system requires all of them. A basic Q-Net system may require no more than a sensor station (or stations), one QSI, one QNC, and a QPS.