SUPER MICRO Computer AS 1020C-3 Extra USB Headers, Serial Ports, Fan Headers, Chassis Intrusion

Chapter 5: Advanced Serverboard Setup

Extra USB Headers

Extra Universal Serial Bus Headers

Pin Definitions (JUSB2)

Two additional USB2.0 head- ers (USB2/3) are included on the serverboard. These may be con- nected to provide front side access. A USB cable (not included) is needed for the connection. 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 ports and the COM2 header is located by the IDE#1 con- nector. Refer to the table on the right for pin defi nitions.

Fan Headers

The H8DCR-3/H8DR-i has fi ve fan headers, which are designated FAN1 through FAN5. Fans are Pulse Width Modulated (PWM) and their speed is controlled via Thermal Management with a BIOS setting. See the table on the right for pin defi nitions.

Chassis Intrusion

A Chassis Intrusion header is located at JL1. Attach the appropriate cable to inform you of a chassis intrusion.

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: Pin 10 is included on the header but not on the port. NC indicates no connection.

Fan Header

Pin Definitions

(FAN1-8)

Pin# Defi nition

1Ground (Black)

2 +12V (Red)

3Tachometer

4PWM Control

Chassis Intrusion

Pin Definitions (JL1)

Pin# Defi nition

1Battery voltage

2Intrusion signal

5-15