March Products 120 III (PC620) user manual Vcc Hdd Led Lan Led

User Manual version 2503

4.1.5.13. CN4: Power LED & EXT. KB/MS, USB

Pin #	Signal	Pin #	Signal
1	VCC	2	VCC
3	HDD LED	4	LAN LED
5	Suspend LED	6	IRTX
7	KEY	8	IRRX
9	BACKLIGHT CTRL INPUT	10	CIRRX (Option)
11	GND	12	GND
13	SPK-LO	14	SPK-RO
15	SPK-LN	16	SPK-RN
17	GND	18	GND
19	USB P2-	20	EXT.KBDAT
21	USB P2+	22	EXT.KBCLK
23	USB P3-	24	EXT.MSDAT
25	USB P3+	26	EXT.MSCLK

4.1.5.14. IOINF 1: I/O Slot

The PC620B’s onboard I/O signal for LAN, USB, keyboard, mouse, VGA, TV-out, COM ports and parallel port are all mixed in the IOINF1 slot. By plugging an IO-005 I/O board and connected to another IO-006 I/O board, all the onboard signal are connected to the system external I/O ports. PLEASE

BE NOTED THAT THE IOINF1 IS A SLOT IN AGP SLOT FORM, BUT IT IS NOT TO BE PLUGGED WITH ANY AGP CARD.

4-60 LIBRA 120 III (PC620 Intel 815E)

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