The CTM-500 uses external antennas for cellular, Wi-Fi and GNSS. If the CTM-500 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-500 may be obstructed from a clear view of the sky, Cypress Solutions recommends:
Draw power from vehicle CAN Bus (OBDII/J1939) - no other cabling required
For non-CAN vehicles, the device can be connected with a DC power cable for direct
connection
The most effective installation method we recommend is to connect the CTM-500 to power via the vehicle’s OBDII or J1939, place the CTM-500 on the dashboard, under the seat, on the window, or any other suitable position, and attach the external antenna to a window. This installation can be completed in roughly five minutes with the wires hidden.
Please refer to CTM-ONE In-Vehicle installation for a graphical illustration.
CAN2.0B Bus
Molex Micro-Fit 3.0™ connector #:
Molex Part Number | Description |
43025-0800 | Receptacle housing |
43030 | Crimp Terminals 20-24 AWG |
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-500 can be powered directly from the CAN port, eliminating the need for additional cabling if the vehicle supports OBDII or J1939 communications.
The CTM-500 supports both medium and high-speed CAN interfaces, as well as single wire CAN.