InHand VT300 Series, Руководство пользователя

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2.3.3 OBD-II 26PIN All-in-one Test Cable
Suitable for heavy trucks with OBD-II diagnostic interfaces. The VT310 is
powered by the diagnostic interface, so the vehicle needs to be started to get
the VT310 working.
Compared with the OBD-II 7-pin all-in-one test cable, a 19-pin I/O bare wire
end is added. This is recommended for customers with demand for I/O or 1-
Wire hardware access.
Steps:
1. Insert the 26PIN female head of cable P1 into the VT310 interface;
2. Connect P2 to the OBD-II diagnostic interface of the vehicle;
3. If you need to judge whether the vehicle is ignited, you can connect P3 to the
ignition switch of the vehicle;
4. For P3 bare wire, you can connect your I/O devices according to your needs,
which will be described later.
2.4 Connect to the I/O Interface
The I/O interface is integrated into the 26PIN vehicle interface, providing 3
digital outputs (max. current 300mA), 4 digital inputs, 1 analog input, 1 1-Wire,
an RS232 serial port and an ignition signal. Following is an example of how to
use the I/O interface.