Select an installation location that will provide optimal cable routing for external connections to vehicle diagnostic port or power, external sensors, etc. Consider mounting locations that will take advantage of the internal antennas. In some cases, external antennas may need to be used to provide adequate Cellular/Wi-Fi/GNSS operation. Optimal in vehicle mounting locations includes areas that have clear visibility of the sky such as under dash/under window locations. Be careful not to mount the CTM-ONE in areas where materials would shield radio signals.
The CTM-ONE has accessory covers that can be installed to provide ingress protection for mounting in areas of excessive moisture and dust. These covers also can also provide a degree of tamper protection if mounted correctly with sealed cable glands and fasteners properly torqued. Accessory covers can be secured with #8-32 screws.
Do not overtighten, recommended torque value: 8-10 in-lb
Mounting
The CTM-ONE includes a flexible mounting bracket that has four 5mm mounting holes suitable for #10 screws. Take care not to over-tighten these screws and damage the bracket. Once this has been installed in the required location, clip the CTM-ONE into the 4 tabs of the bracket. The bracket can be used as drill guide template. There are a total of 4 mounting holes (1.75 (44.5 mm)” x 3.75 (95.25 mm)” center to center distance).
...
Optional Cable Covers
...
In-Vehicle Installation
The CTM-ONE can draw power from the vehicle CAN Bus (OBDII/J1939). Connect the 8 Pin terminal to the CAN Bus port on the CTM-ONE and connect the other end to the vehicle diagnostic port.
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 used primarily to interface to Vehicle sub-systems that support CAN communications. This includes all small and light 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:
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.
Please refer to the CTM-ONE installation overview here.
| Info |
|---|
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
...
Use of External Antennas
...
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 (ISO15765ISO 15765-4) and , as well as heavy-duty vehicles that support are compatible with J1939 protocol.
An accessory OBDII or J1939 Cable is required to interface to a vehicle Engine Control Unit (ECU). The CTM-ONE can be powered from the CAN port, so no other cabling is required if the vehicle supports either OBDII or J1939 communications.The CTM-ONE supports both Medium and Highboth medium and high-speed CAN interfaces as well as Single Wire CAN.
.
Item Description | Cable Part Number |
CANBUS OBDII cable, 15ft | 6954.2028 |
CANBUS J1939 cable, 15ft | 6954.2029 |