ATrack AK7 - 4.3. Power I;O Connector

Confidential Document
Page 7 of 26
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The following figure shows the power I/O connector and its associated pin number.
The following table describes the function of each pin.
Power I/O Connector
Pin#
Function
Color
Designation
Note
1
Main power input
Red
PWR
DC 9V~40V DC input
2
Power ground
Black
GND
3
ACC Input
Yellow
ACC
Ignition status positive trigger input
4**
General Input1 (Default)
1-Wire Protocol Input *
Green
IN1/1W
Negative trigger input
1-Wire Data input
5**
General Input2
General Output1 (Default)
Analog Input1
Brown
IN2/O1/AI
Positive trigger input
Open collector output (Max.300mA)
Analog input (DC0V~40V)
6**
General Input3
General Output2 (Default)
Gray
IN3/O2
Negative trigger input
Open collector output (Max.300mA)
* The 1-Wire® Protocol supports up to three 1-Wire™ devices simultaneously, which means you can have
one (iButton® , DS1990A) and two 1-Wire™ temperature sensor probes (DS18B20)
** You may configure the AT$IOCG command to change these specific I/O pins to any of those functions
mentioned as above. Note: Please do not connect a positive voltage to any output pin!!!
Power I/O