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This document explains the default Pinout configurations for the EP2 Module.
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Pinout: EP2
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EP2 Module Description Our EP2 was created because of our devoted customer base and their feedback. A desire for a more intuitive System that could communicate with drivers and actually scan the vehicle when empty became a reality with the addition of the EP2 to our product line. Product Photo Current Draw Power Consumption The EP2 is microprocessor based and consumes less than 20 mA, which is typical, 40 mA is peak depending on the number of Outputs that were activated. The power supply for the microprocessor is done with a current limited voltage regulator IC. Limits on Inputs All Inputs to the System, Ignition, Rear Door Sensor, Master, Brake and Motion Sensor have 57,000 Ohm resistors in series with the Input wires. Limits on Control Outputs Normal Conditions All control Outputs are current limited. Outputs from the EP2 have a direct, non-current limited connection to the battery. The Horn and Dome Light circuits utilize a 3.3 Ohm resistor in series with the drive transistor. Under normal conditions the maximum current is limited to 300 mA. The auxiliary Outputs, are current limited to 30 mA. These circuits utilize a 15 Ohm, a very low wattage resistor in series with the Output. Under abnormal situations, such as a component failure, the 15 Ohm resistor will limit the current draw and will act like a 'fuse failing to open'. The Speaker Output on the EP2 has its own current limiting voltage regulator. The Speaker Outputs are double protected to short circuits. Both the Audio Amplifier and the voltage regulator IC supplying power to the Audio Amplifier will shut down if excessive currents flow. Abnormal Conditions Under potential fault conditions, for example, due to an external short, the Output will be shut 'OFF' by the microprocessor. Under abnormal situations, for example, a component failure, may cause an excessive current to flow through the 3.3 Ohm resistors or the PCB track carrying this current, which will fail by going 'open', eliminating the excessive current draw. Operating Temperature The operating temperature of the EP2 is between -40 to 85°c
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