March Products 120 III (PC620) user manual COM1

User Manual version 2503

4.2.3.Connectors & Pin Assignment

The table below lists the function of each connector on IO-005 and IO-006. Their corresponding pin assignments will be shown in the following sections.

Keyboard	Keyboard connector
Mouse	Mouse connector
COM1	Serial port 1 (3F8)
COM2	Serial port 2 (2F8)
COM4	Serial port 4 (2E8)
DC Power	DC power +5V/+12VC output
LPT	Parallel port
CRT	CRT display connector
FDD	External FDD connector
USB1	USB connector 1
USB2	USB connector 2
DIO	Digital I/O connector
LAN	Ethernet connector
MIC-in	Microphone-in connector
Line-in	Line-in connector
SPK-out	Speaker output connector
VR	LCD Backlight control

4-70 LIBRA 120 III (PC620 Intel 815E)

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