MEITRACK T399G Vehicle Tracker User Guide
Copyright © 2018 Meitrack Group All rights reserved. - 21 -
3 (Input 1)
Grey
Digital input, (negative trigger by default)
Connect to a door trigger signal cable to detect vehicle door status. (Most
Chinese, Korean, and Japanese cars are negative edge-triggered.)
The port can be set to positive trigger, AD input 2 (0–30 V), or remote control
input.
4 (Input 2)
White
Digital input, positive trigger. The port can be set to negative trigger or AD input
3 (0–30 V).
Connect to the vehicle ACC cable by default to detect the vehicle ACC status.
5 (AD input 1)
Blue
Analog input with 12-bit resolution and valid voltage 0–30 V.
The port can be set to input 3 (positive/negative).
6 (Output 1)
Yellow Valid: low level (0 V)
Invalid: open collector
Maximum voltage for output open collector (invalid): 60 V
Maximum current for output low level (valid): 500 mA
Set the PWM output (output time and adjustable pulse width).
Connect to an external relay to remotely cut off the vehicle fuel cable or engine
power supply.
7 (1-wire interface)
Green
Connect to the iButton and other devices supporting 1-wire protocol.
The port can be set to negative input 4 or output 2 open collector.
8 (5 V output cable) Pink
5 V output
It can be connected to the power supply of a temperature sensor.
The I/O cable of T399G RS232 version is an 11-pin cable. Besides the above 8 pins, there are the following 3 pins.
9
GND
10
RS232-Tx
11
RS232-Rx
Pin Number
Color
Description
9 (GND)
Black
Ground wire
10(RS232-Tx)
Purple
The device sends data through RS232 port.
11(RS232-Rx)
Brown
The device receives data through RS232 port.
8.1.2
Wiring Diagram
T399G standard version:
