9/27/2017 LMU-3640 Hardware & Installation Guide - PULS Wiki
https://puls.calamp.com/wiki/LMU-3640_Hardware_%26_Installation_Guide 8/23
Pin Signal Name Description Input or Output
1 Input 1 Input 1 – Digital Input Input
2 Input 2 Input 2 – Digital Input Input
3 Input 3 Input 3 – Digital Input Input
4 Input 4 Input 4 – Digital Input Input
5 ADC 1 Input 5 – Analog to Digital Input Input
6 ADC 2 Input 6 – Analog Digital Input Input
7 AUX1 TX Input 7 – Digital Input Input
8 AUX1 RX 1 Bit Bus Data (T) Input
9 GND 1 Bit Bus Ground Power
10 GND 1 Bit Bus Data (R) Power
11 GND 1 Bit Bus Ground Power
12 12V OUT SW Output 0 - Starter Disable Relay Driver Output
13 Input 0 Output 1 - Digital Output Input
14 VCC 3V3 AUX1 Output 2 - Digital Output
15 VCC 3V3 AUX2 Output 3 - Digital Output
16 1BB T DATA Output 4 - Digital Output Input/Output
17 AUX2 RX Output 5 - LED 1 Driver Input
18 AUX2 TX Output 6 - LED 2 Driver Input
19 OUT 0 Analog to Digital Input 2 Output
20 OUT 1 Analog to Digital Input 3 Output
21 OUT 2 Analog to Digital Input 4 Output
22 GND Analog to Digital Input 5 Power
23 VIN 1 Analog to Digital Input 4
24 VIN 2 Analog to Digital Input 4
3.2.2 VBUS Connector
The LMU-3640™’s features a 16-Pin Molex 43045-1600 connector to the vehicle bus. Its pin-out is as follows:
Pin Signal Name Color
1 J1708H Brown
2 J1850- White
3 CAN2L-11 Grey
4 K-Line_12/HD Black/Red
5 J1708L Red
6 CAN1L Green
7 K/L-Line Violet
8 Vcc In Orange
9 SWCAN Pink
10 J1850+ Black/White
11 CAN2H Blue
12 GND Black
13 GND Black/Green
14 CAN1H Yellow
15 ISO/K-Line Blue/White
16 CAN2L-8 Green/White
3.2.3 Accessories
See the Harness Diagrams page for more information on LMU accessories, and supported products table.
3.3 GPS Receiver
50+ channel GPS receiver (with SBAS, DGPS)
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