Installation Guide
7/21/2020 TTU-2900 Hardware & Installation Guide - PULS Wiki
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Pin
Signal Name
OBD Pin
J1939 TypeIIA Pin
J1939 TypeIIB Pin
1 J1708H NC F NC
2 J1850L 10 NC NC
3 CAN2L-11 11 J G
4 K-Line_12/HD 12 NC NC
5 J1708L NC G NC
6 CAN1L 14 D D
7 K/L-Line 15 NC NC
8 Vcc In 16 B B
9 SWCAN 1 NC NC
10 J1850H 2 NC NC
11 CAN2H 3 H F
12 GND 4 NC NC
13 GND 5 A A
14 CAN1H 6 C C
15 ISO/K-Line 7 NC NC
16 CAN2L-8 8 NC NC
3.2.3 Accessories
*Refer to Section 2.6 (https://puls.calamp.com/wiki/Harness_Diagrams#V-Series_.28VDK-3641.29_and_TTU-2900%7C) of the Harness
Diagrams page for more information on appropriate accessories for the TTU-2900™.
3.3 GPS Receiver
72 channel GPS receiver (with SBAS, DGPS)
Accuracy: 2 meter CEP (with SBAS)
Tracking Sensitivity: -162dBm
Acquisition Sensitivity: -148dBm
3.4 I/O Descriptions
The TTU-2900™ provides the following logical mapping of inputs and outputs (I/O):
Digital Inputs
Input 0: Ignition Sense (Always biased low)
Input 1: In-1 sel Generic Digital Input (Biased high or low/ S-158 Bit 1)
Input 2: In-2 sel Generic Digital Input (Biased high or low/ S-158 Bit 2)
Input 3: In-3 sel Generic Digital Input (Biased high or low/ S-158 Bit 3)
Input 4: In-4 sel Generic Digital Input (Biased high or low/ S-158 Bit 4)
Internal Inputs
Input 8: Motion Sensor (low = no motion, high = motion)
Input 9: VBUS Active
Input 10: Pwr State (low = main power, high = battery power)
Input 11: Vbatt Low
Input 12: 1BB Detect
Input 13: Batt Virt Ign
Input 14: Pure Virt Ign
Input 15: Radio Ring Wake
Input 16: DB Wake
Input 17: Vbus Wake
Input 18: Pwr State 2
Input 19: Crank Detect
Analog to Digital Inputs
A/D 0: External Power Supply Monitor (VIN1)
A/D 1: Ext ADC1 Generic External Analog to Digital Input
A/D 2: EXT ADC2 Generic External Analog to Digital Input
A/D 3: HW Config
A/D 4: VIN2
A/D 5: VIN_VBUS










