User manual

TREK-743 User Manual 8
2.2 Installation Procedures
2.2.1 Connecting the Power Cord
Connect the three pin waterproof power cord to the DC inlet of the Vehicle Mounted
Computer. On the open-wire end, one pin is reserved for positive voltage and is
marked, "+"; one pin is reserved for ground and is marked, "-"; and, one pin is
reserved for the ignition signal with an “ignition” mark.
2.2.2 Connecting the Keyboard or Mouse
Before starting the computer, it is required to connect the mouse or keyboard to the
USB ports.
2.2.3 Switching on the Power
The power switch is located on the bottom of the computer.
Note! Power on/off the TREK-743 via the TREK-743's power switch. Please
connect its "+ " and " ignition" pins together with the power source's "+".
Or change the JP3 jumper setting. (For JP3 jumper setting please see
section 4.3.2.1)
Note! Ignition on/off setting : The TREK-743 supports an ignition on/off func-
tion so that you can power on/off the TREK-743 via the ignition signal/
voltage. Either connect the TREK-743's "ignition" pin to vehicle ignition
and the TREK-743 "+-" to "+-" ; or connect the TREK-743's "ignition &
+" pins together with power source's "+" , and "-" to "-". Please also set
the "power on after power failure” function to "always on" in BIOS.(for
BIOS settings, please see Appendix D). The delay on/off will be active
once the ignition on/off is selected.
Table 2.1: Pin Definition of Power Cord
Pin Definition Color
1 + yellow
3- black
4 Ignition white