SUPER MICRO Computer Super PIIIDM4 user manual Chassis Intrusion, Keyboard Lock, Overheat LED OH

Chapter 2: Installation

Chassis Intrusion

The Chassis Intrusion connection is located on pin 20 of JF1. See Table 2-9 for pin definitions.

Keyboard Lock

The Keyboard Lock connection is located on pins 22 and 24 of JF1. See Table 2-10 for pin definitions. Pins 5 through 7 are for the power LED. Pins 8 and 9 are for the keylock.

Table 2-9

Chassis Intrusion (IT) Pin Definitions (JL1)

Pin
N u m b e r	Definition
2 0	Intrusion Input

Table 2-10

Keyboard Lock

(KL) Pin Definitions

(JF1)

Pin
N u m b e r	Definition
2 2	+ 5 V
2 4	G N D

Installation

Overheat LED (OH)

Connect an LED to the OH connec- tion on pin 26 of JF1 to provide advanced warning of chassis overheating. Refer to Table 2-11 for pin definitions.

Table 2-11

Overheat LED (OH) Pin Definitions (JF1)

Pin
N u m b e r	Definition
1 0	OH Active

NOTE: Because the OH and USB0 connectors both share pin 25, you cannot

have both connnected at the same time.

Extra Universal Serial Bus Connection (USB0)

An additional connection for USB0 is included on pins 25, 27, 29 and 31 of JF1 for front side USB ac- cess. You cannot have devices connected to both this and the back side connector at J12. See Table 2-12 for pin definitions. You will need a USB cable (not in- cluded) to use this connection.

Table 2-12

USB0 Pin

Definitions

Pin

N u m b e r Definition

1+ 5 V

2K e y

3I R R X

4G r o u n d

2-9