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Vnet Smart Sensor System

What is Vnet? This Racepak exclusive provides the ability to transmit the data from up to 12 sensors, through a single cable connected to the V series, G2X or G2X Pro data logger. Think of the Vnet much the same as a power strip. The power strip receives electricity from a single cable, plugged into an outlet. A shop light and grinder are plugged directly to the power strip, while your drill press requires a 10’ extension cord. In much the same manner, the logger can both power and receive data from multiple sensors, all through the Vnet cable. If a Vnet sensor and module are out of reach of the main Vnet cable a Vnet extension cable is utilized to connect to the cable.

How do Vnet modules and cables connect? Below are two diagrams which can be downloaded or viewed online to assist you in understanding how to properly connect your Vnet system:

Typical V300 V-Net Layout With T Cables
Typical V300 Layout With T Cables
  Basic Vnet Layout
Basic V-Net Layout


What are Vnet Modules and smart sensors? In order to utilize the Vnet cable, each sensor is accompanied by a Vnet Module. This Vnet module contains scaling and calibration values along with channel name and other sensor specific information, which then creates a smart sensor. This technology allows the user to install sensors into the logger package, connect their PC to the unit and instruct the DatalinkII software to “Read” the system. This procedure automatically adds the sensor to the software and hardware of the logger. Each Vnet module is equipped with a male / female connector. This design allows the modules to be connected back to back. In the event that Vnet modules and sensors are mounted some distance apart, simply connect each Vnet module with a Vnet extension cable.

Why would I add a Racepak gauge? In much the same manner as described above, gauges can also be added to the Vnet system. For example, the user installs a Vnet oil pressure sensor. To add a Racepak oil pressure gauge to the system, simply install the gauge in the desired location in the vehicle. The gauge is then connected into the Vnet cable by means of Gauge Tee Cable. The gauge then “borrows” the data from the Vnet oil pressure sensor and activates the gauge, while transmitting the oil pressure sensor data to the logger, for data logging purposes. Multiple gauges are connected by means of a Gauge to Gauge cable with the last gauge in line connected to the Vnet cable by means of a Gauge Tee Cable.

What does all this mean to me?

  • By utilizing the Datalink “Read Vnet Config” command in the car configuration file, sensors are automatically added to the DatalinkII software.
  • Up to 12 sensors and gauges may be installed in any order on the vehicle.
  • Eliminates the necessity of routing multiple wires to each sensor
  • Eliminates the necessity of double sensors when utilizing Racepak gauges
  • Eliminates the confusing procedures of user setup and calibration
  • Reduced weight due to elimination of wiring
  • It’s just easier
 
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