SUPER MICRO Computer AS1020S-8 user manual USB2/3 Headers, Serial Ports, Fan Headers

Chapter 5: Advanced Serverboard Setup

USB2/3 Headers

Extra Universal Serial Bus Headers

Pin Definitions (USB2/3)

Two additional USB2.0 head- ers (USB2/3) are included on the serverboard. These may be con- nected to provide front side access. USB cables (not included) are needed for the connections. See the table on the right for pin defi nitions.

USB2

Pin # Defi nition

1+5V

2PO-

3PO+

4Ground

5Key

USB3/4

Pin # Defi nition

1+5V

2PO-

3PO+

4Ground

5No connection

Serial Ports

The COM1 serial port is located be- side the USB. COM2 is a header lo- cated near the IDE1 header. See the table on the right for pin defi nitions.

Serial Port Pin Definitions

(COM1/COM2)

Pin #	Defi nition	Pin #	Defi nition
1	DCD	6	DSR
2	RXD		RTS
		7
3	TXD		CTS
		8
4	DTR		RI
		9
5	Ground		NC
		10

Note: NC indicates no connection.

Fan Headers

The H8DSR-8 has five 3-pin fan headers. Fan speed is controlled via Thermal Management with a BIOS setting. See the table on the right for pin defi nitions.

ATX PS/2 Keyboard and PS/2 Mouse Ports

The ATX PS/2 keyboard and the PS/2 mouse ports are located to the left of the COM1 port. See the table on the right for pin defi nitions.

Fan Header

Pin Definitions

(FAN1-5)

Pin# Defi nition

1FAN2 Power

2FAN2 Tachometer

3Ground

4Ground

5FAN1 Tachometer

6FAN1 Power

PS/2 Keyboard and Mouse Port

Pin Definitions

(KB/Mouse)

Pin #	Defi nition	Pin #	Defi nition
1	Data	4	VCC
2	NC		Clock
		5
3	Ground		NC
		6

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