13 . Auxiliary panel connector (20-pin AUX_PANEL1)

This connector is for additional front panel features including front panel SMB, locator LED and switch, chassis intrusion, and LAN LEDs.

•Front panel SMB (6-1 pin FPSMB)

These leads connect the front panel SMBus cable.

•LAN activity LED (2-pin LAN1_LED, LAN2_LED) These leads are for Gigabit LAN activity LEDs on the front panel.

•Chassis intrusion (2-pin CHASSIS)

These leads are for the intrusion detection feature for chassis with intrusion sensor or microswitch. When you remove any chassis component, the sensor triggers and sends a high-level signal to these leads to record a chassis intrusion event.

•Locator LED (6-pin LOCATOR)

These leads are for the locator switch and LED on the front panel.

 

Connector Pin 1

 

Front panel SMB

P5MT-R

Chassis intrusion

 

AUX_PANEL1

 

1

 

 

+5VSB

NC

 

 

I2C_4_CLK#

 

CASEOPEN

 

 

GND

GND

 

LOCATORLED1+

I2C_4_DATA#

 

LOCATORLED1-

+5VSB

 

LOCATORBTN#

LAN1_LINKACTLED-

 

GND

LAN1_LINKACTLED+

P5MT-R Auxiliary panel connector

LOCATORLED2-

LAN2_LINKACTLED+

LOCATORLED2+

LAN2_LINKACTLED-

 

Locato r LED

LAN activity LED

 

an d switch

 

By default, a cable plug (6x2, 12-pin) connects the AUX_PANEL1 to the front panel I/O board. The Pin1 on the cable plug is located at the top right corner on the “I2C_4_DATA#” lead and is marked by a triangle. Take note of the Pin1 when reconnecting the cable plug to prevent incorrect insertion.

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Chapter 4: Motherboard information