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2. Power supply connection through the loose wire: This mode requires operation by specialized
installation personnel. The following mainly describes the mode of connection to the vehicle
power supply according to the power cable requirements of the product.
1) Required tool: multimeter.
2) Selection of power supply connection position
When the vehicle is shut down, use a test pencil to detect whether the circuit is live. If it is live, it is
judged as a constant power supply, and then measure the voltage.
When the vehicle is shut down and is in ACC position or ignition state, use a test pencil to detect
whether the circuit is live. If it is electrically neutral in shutdown state, and is live in ACC position or
ignition state, it is judged as an ACC power cable, and then measure the voltage.
3) Voltage measurement of power supply connection
Constant power supply: When the vehicle is shut down, use a multimeter to measure whether the
voltage of the constant power supply cable is about 24 V or 12 V. If the voltage of multiple cables is in
the range, select the cable with higher current as the constant power supply connection cable.
ACC: When the vehicle is in ACC position or ignition state, use a multimeter to measure whether the
voltage is about 24 V or 12 V. If the voltage is 0 in shutdown state and 24 V or 12 V in ACC position or
ignition state, select the cable as the ACC power supply connection cable.
*Note:
During power supply connection, first conduct measurement at the positive and negative terminals of the
power supply with a multimeter, to avoid wrong connection.
2.5 Connection of Necessary Signal Cables
Where required, the following signal cables must also be connected to enable the intelligent assisted
driving functions of FTDC-ADP-4CH:
(1) CAN data cable - to obtain accurate vehicle speed (if GPS speed is used, the CAN cable may not
be connected);
(2) Left and right steering signal cables - to obtain left and right steering information of vehicle;
Please consult the maintenance engineer of the vehicle discipline for specific position of CAN data cable.
Generally, the left and right steering signal cables are arranged on the fuse board below the steering
wheel or below the front passenger dashboard, and measurement for these cables can be conducted
using a multimeter.
*Note:
If the measured signal is a pulse signal, the source of left steering/right steering/brake signal shall be set
as pulse on the setting screen of the Dashcam; if the measured signal is a continuous high- or low-level
signal, the source of left steering/right steering/brake signal shall be set as level on the setting screen of
the Dashcam.
3. Preparation for Installation Material and Tool List
3.1 Packing List Inspection
