
the power wires. Depending on car, this may happen in 5 to 30 minutes period.
When module is connected, measure voltage again to make sure it did not decrease.
It is recommended to connect to the main power cable in the fuse box.
3 A, 125 V external fuse shall be used.
Connecting ignition wire
Be sure to check if it is a real ignition wire i. e. power does not disappear after starting
the engine.
Check if this is not an ACC wire (when key is in the first position, most of the vehicle
electronics are available).
Check if power is still available when you turn off any of vehicles devices.
Ignition is connected to the ignition relay output. As alternative, any other relay, which
has power output when ignition is on, may be chosen.
Connecting ground wire
Ground wire is connected to the vehicle frame or metal parts that are fixed to the frame.
If the wire is fixed with the bolt, the loop must be connected to the end of the wire.
For better contact scrub paint from the spot where loop is going to be connected.
PAY ATTENTION! Connecting the power supply must be carried out in a very low
impedance point of on-board vehicle network. These points in the car are the battery
terminals. Therefore, we recommend connecting the power of FMC150 (GND and
POWER wires) directly to the battery terminals. Another valid option is to connect the
wires to the main POWER cable inside the fuse box (if there is none, then to the power
supply where the fuses of vehicle’s computer are), GND wire must be connected in a
special point, designed to connect GND vehicle computer. Connecting the GND at an
arbitrary point to the mass of the car is unacceptable, as static and dynamic potentials
on the line GND will be unpredictable, which can lead to unstable FMC150 operation
and even its failure.
Safety information
This message contains information on how to operate FMC150 safely. By following these
requirements and recommendations, you will avoid dangerous situations. You must read these
instructions carefully and follow them strictly before operating the device!
The device uses SELV limited power source. The nominal voltage is +12 V DC. The allowed
voltage range is +10..+30V DC.
To avoid mechanical damage, it is advised to transport the device in an impact-proof package.
Before usage, the device should be placed so that its LED indicators are visible. They show the
status of device operation.
When connecting the 2x6 connector wires to the vehicle, the appropriate jumpers of the
vehicle power supply should be disconnected.