Cogswell Carrier for NVIDIA® Jetson™ TX2/TX2i
Users Guide
Document: CTIM-00484
Revision: 0.08
Page 21 of 29
Date: 2021-10-06
CAN Bus
Function
CAN Bus
Location
P16
Type
Phoenix Contact Base Strip
P/N
1897102
Mating
1840379
Pinout
Pin Description
1
CAN_P
2
CAN_N
3
CAN_GND
Power Input
The Cogswell Carrier accepts a single power input to power all on-board devices. A power input of +12V
is required for nominal operation.
Function
Power
Location
P17
Type
TE Connectivity Shrouded Power Header
P/N
796864-2
Mating
796858-2
Pinout
Pin Description
1
+12V
2
GND
Auto Start
The Cogswell Carrier has an on-board Auto Start Functionality which can be disabled. The NVIDIA
Jetson™ Modules require a power button or power pulse to start. The Cogswell Carrier has a power
pulse circuit on board to auto start the Module, if the DIP Switch SW1B is correctly set. Otherwise, the
NVIDIA Jetson™ TX2/TX2i Module will remain in an OFF state until the Power Button is pressed.
Note:
Due to the changes done to the PMIC circuitry of the TX2i Jetson Module the Cogswell Carrier will
always remain ON when in AT (Automatic Power ON) and ATX (Push Power button) modes. This will
cause the Cogswell Carrier to automatically power ON when voltage is applied to the system. The
system will in addition be unable to shut down in software (Soft Shutdown), due to the characteristics of
the TX2i power circuitry as such the system will perform a Reset/Reboot function.
