User manual

TREK-775/TREK-776 User Manual 30
4.1.3 Connectors on the motherboard
On-board connectors link the Vehicle Mounted Computer to external
devices such as hard disk drives. The table below lists the function of
each connector.
* When internal COM3, COM4 connectors (CN16, CN18) are occupied,
CN23 becomes invalid.
Table 4.2: Connectors
Label Function
CN1 LVDS connector
CN2 Inverter power connector
CN3 VGA Socket (RD debug use only)
CN4 Mini PCI socket
CN5 2.5" IDE connector
CN6 Power input connector
CN7 USB4
CN8 RESET
CN9 Power Button
CN10 USB3
CN11 Parallel port connector (Reserved)
CN12 Brightness Control connector
CN13 PCMCIA connector
CN14 Line out connector (Reserved)
CN16 Internal COM4 connector
CN17 Line/Mic in connector (Reserved)
CN18 Internal COM3 connector
CN19 LAN+USB1+USB2
CN20 PS2 connector
CN21 Internal speaker connector (Reserved)
CN22 External COM1/COM2 Connector
CN23 External COM3/COM4 Connector *