CalAmp | LMU-26xx Install Guide
Page 40
MBUD-0199v3.3
APPENDIX A
– LMU-26XX ACCESSORY CABLES AND PIGTAIL
WIRING INSTRUCTIONS
PRIMARY CONNECTOR
The LMU-26xx uses a Male (pin) Molex Micro-Fit 3.0TM Dual Row, 20 circuit header to receive power,
ground and supply input and output signals. The pin out is as follows:
Wire
Signal
Name
Description
Color
Input or
Output
Usage
1
GND
Ground
Black (22 AWG)
Ground
AUX1
2
OUT-0
Output 0 –Started Disable
Relay Driver
Green (22 AWG)
Output
Not Used
3
IN-1
Input 1 – Digital Input
Blue
Input
Optional
4
TXD
Host TxD
Blue
Input
AUX1
5
ADC-1
Analog to Digital Input 1
Pink
Input
Not Used
6
IN-3
Input 3 – Digital Input
Violet
Input
Optional
7
IN-4
Input 4 – Digital Input
Grey
Input
Optional
8
IN-0
Input 0
White
Ignition Input Required
9
V
DD
VDD Reference Output (20-
25mA Max)
Orange (22 AWG) Output
AUX1/AUX2
10
OUT-
1/BOOT
Output 1 – Digital Output
(Open Collector)/BOOT Input
Brown (22 AWG)
Input/Output Not Used
11
OUT-2
Output – 2 Digital Output
(Open Collector)
Yellow (22 AWG)
Output
Not Used
12
IN-2
Input 2 – Digital Input
Orange (22 AWG) Input
Optional
13
RxD
Host RxD
Green (22 AWG)
Output
AUX1
14
V
CC
Primary Power Input
Red (20 AWG)
Power
Required
15
GND
Primary Ground
Black (20 AWG)
Ground
Required
16
1BB-GND 1 Bit Bus Ground
Black (22 AWG)
Ground
Not Used
17
1BB-D
1-Bit Bus Data
White/Blue
Input/Output Not Used
18
AUX-TxD
Aux Port – Transmit Data
White/Orange
Input
AUX2
