This is done to provide device and vehicle protection. Note that when a 2.5mm plug is inserted into this jack, the OEM12 signal is not longer connected to pin 12 of the J1962 connector, only the internals of the Openport. The 2.5mm jack provides an easy way to connect to this pin outside of the J1962 connector. The 2.5mm jack Tip terminal is connected to the OEM12 functionality of the Openport 2.0, which means is can be used as an ADC voltage input, or a variable voltage or connection to ground can be applied to this teminal.This is typically used with Innovate MTS bus compatible devices such as a wide-band oxygen sensor, or similar devices from other manufacturers. The 2.5mm jack Ring and Sleeve terminals can be used to receive RS-232 data from another device.In J1850VPW, only the J1850+ pin is used. In J1850PWM both the J1850+ and J1850- pins are used. (Support pending) Pins J1850+ and J1850- are used for SAE J1850 communications.Pins ISO-9141 K and ISO-9141 L are used for ISO-9141 and KWP2000 communications.Pins CANL and CANH are used for CAN and ISO15765 communications.The Openport 2.0 is not designed for 24 volt vehicles. (with VAT) Add to cart Description Reviews Tactrix Openport 2.0 The OpenPort 2.0 is newest tuning tool hardware that is capable of communicating with most OBDII compliant vehicles using a standard J2534 interface. Although the device can also be powered via USB, these need to be present for vehicle communications to occur. The Openport 2.0 is powered via the 12 volt Vbat and GND pins.
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