Appendix 1: Power Connections for OBDII and J1939 Cables

The CTM-ONE can be connected using a DC power cable (see available options below) for direct connection to a DC power supply. Alternatively, it can be connected with an optional AC Wall Plug adapter (PN: 6954.2019) that allows quick and easy connection to standard 120V AC Power.

Below are the available part numbers for DC power cable options:

• 6954.2000 (13ft)

• 6954.2020 (3ft)

• 6954.2031 (15ft)

A 5 Amp “slow-blow” fuse is recommended in the +V supply line.

Operation/Standby Line

When the operate/standby line is utilized, the CTM-ONE can leverage the state of this line through its "ignition sense" features. Even when the ignition line is wired, the CTM-ONE does not completely shut down; instead, it consumes a minimal amount of power (ranging from 1.2mW to 40mW) to monitor the status of various inputs. This allows the device to "wake on events" that occur while in low power mode.

Advantages of connecting power using the vehicle's operate/standby or ignition line include:

• Reporting and logging of Ignition ON/OFF events.

• Activation of shutdown based on a timer, such as turning off the CTM-ONE ten minutes after ignition has been turned off.

Power (Not Required if Regular* OBDII/J1939 Cables Used)

*Separate DC power is not required if one of the following OBDII/J1939 cable part numbers is used:

• 6954.2001

• 6954.2002

• 6954.2028

• 6954.2029

• 6954.2044

To enable the “ignition sense” feature, a separate ignition cable (PN: 6954.2052) is required. Simply plug this cable into the CTM-ONE’s power port, contact Cypress Solutions Technical Support and an updated configuration will be pushed through to enable the ignition-based power management.