User manual

TREK-775/TREK-776 User Manual 32
4.1.5 Jumpers and switches on power board
The power board of the Vehicle Mounted Computer has a number of
jumpers that help configure the system. It also has LED indicator lamps
that display the system operation status. The table below lists the function
of each connector and LED.
Table 4.3: Connectors on Power board
Connector Function
CN1 Power Output connector
CN2 LOW BATTERY MONITOR
CN3 Remote on/off switch (Reserved)
CN4 Power input connector
CN5 Positive VBIAS connector (Reserved)
CN6 Ignition input connector
CN7 Power off delay setting connector
CN8 Ignition input switch connector
D1 Power indicator (12V)
D2 Power indicator (5V)
D3 Power indicator (3.3V)