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Chapter 4: Motherboard information4-18
15. 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.
Front panel SMB LAN activity LED
Chassis
intrusion
Locator LED and
switch
LAN2
®
P5MT Series Auxiliary panel connector
AUX_PANEL1
I2C_4_DATA#LOCATORLED1+
+5VSBLOCATORLED1-
LAN1_LINKACTLED-LOCATORBTN#
LAN1_LINKACTLED+GND
+5VSB
I2C_4_CLK#
GNDGND
LAN2_LINKACTLED+LOCATORLED2-
LAN2_LINKACTLED-LOCATORLED2+
CASEOPEN
PIN1
NC