User's Manual

Confidential Document
Page 7 of 19
4
4
.
.
3
3
.
.
P
P
o
o
w
w
e
e
r
r
I
I
/
/
O
O
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
The following table describes the function of each bare wire.
Power I/O Connector
Pin#
Function
Color
Designation
Note
1
Main power input
Red
PWR
DC 6V~32V 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 (DC3V~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!!!