The CTM-ONE supports the option of internal antennas for cellular, Wi-Fi and GPS (GNSS). If the CTM-ONE is mounted with a clear view of the sky, a single connection point to the vehicle is all that is needed between the device and the OBDII or J1939 port of the vehicle. For other mounting scenarios where the CTM-ONE may be obstructed from a clear view of the sky, Cypress Solutions recommends the use of an external GNSS antenna.:
Use external antennas if device is installed in vehicles (please refer to/wiki/spaces/CTMONE/pages/2397241347)
Power from vehicle diagnostic link connector (DLC) (OBDII/J1939) - no other cabling required
For vehicles where DLC is not supported/desired, the device can be connected with a DC power cable
The most effective installation method we recommend is to connect the CTM-ONE to power via the vehicle’s OBDII or J1939, place the CTM-ONE on the dashboard, under the seat, on the window, or any other suitable position, and attach an external antenna to a window. This installation can be completed in roughly 10-20 minutes with the wires hidden.
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CAN2.0B Bus
Molex Micro-Fit 3.0™ connector #:
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Molex Part Number
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Description
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43025-0800
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Receptacle housing
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43030
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Crimp Terminals 20-24 AWG
Please refer to the CTM-ONE installation overview here.
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The illustrations below demonstrates the use of an OBDII cable with a light-duty pickup truck. In contrast, larger vehicles such as garbage trucks, paving trucks, and street sweepers utilize J1939 cabling. |
Use of Internal Antennas
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Use of External Antennas
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CAN2.0B Bus
The CAN interface is primarily utilized to connect to vehicle subsystems that support CAN communications. This includes small and light-duty vehicles manufactured in 2008 and later (ISO 15765-4), as well as heavy-duty vehicles that are compatible with J1939 protocol.To interface with a vehicle's Engine Control Unit (ECU), an accessory OBDII or J1939 cable is necessary. The CTM-ONE can be powered directly from the CAN port, eliminating the need for additional cabling if the vehicle supports OBDII or J1939 communications.
The CTM-ONE supports both Medium medium and Highhigh-speed CAN interfaces, as well as Single Wire CAN.
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Item Description | Cable Part Number |
CANBUS OBDII cable, 15ft | 6954.2028 |
CANBUS J1939 cable, 15ft | 6954.2029 |