11.System panel auxiliary connector (20-pin AUX_PANEL1) This connector supports several server system functions.

AUX_PANEL1

P5BP-E/4L

NC I2CCLK P2

GND I2CDATA P2 +5VSB LAN1 LINKACTLED+ LAN1 LINKACTLED- LAN2 LINKACTLED- LAN2 LINKACTLED+

1

CASEOPEN GND LOCATORLED1+

+5VSB

P5BP-E/4L Auxiliary Panel Connector

LOCATORLED1- LOCATORBTN# GND LOCATORLED2- LOCATORLED2+

•Chassis Intrusion connector (3-pin CASEOPEN)

This lead is for a chassis with an intrusion detection feature. This requires an external detection mechanism such as a chassis intrusion sensor or microswitch. When you remove any chassis component, the sensor triggers and sends a high-level signal to this lead to record a chassis intrusion event.

•LAN1 link activity LED (2-pin LAN1_LINKACTLED)

This 2-pin connector is for the LAN1 Activity LED. Connect the LAN1 Activity

LED cable to this connector. This LED blinks during a network activity and is always lit when linked.

•LAN2 link activity LED (2-pin LAN2_LINKACTLED)

This 2-pin connector is for the LAN2 Activity LED. Connect the LAN2 Activity

LED cable to this connector. This LED blinks during a network activity and lights up when linked.

•Locator LED 1 (2-pin LOCATORLED1)

This 2-pin connector is for the Locator LED 1. Connect the Locator LED

1 cable to this connector. This LED lights up when the Locator button is pressed.

•Locator LED 2 (2-pin LOCATORLED2)

This 2-pin connector is for the Locator LED 2. Connect the Locator LED 2 cable to this connector.

•Locator Button/Switch (2-pin LOCATORBTN)

This connector is for the locator button. This button queries the state of the system locator.

•Front Panel SMBus (6-1 pin)

This connector allows you to connect SMBus (System Management Bus) devices to the system front panel. Devices communicate with an SMBus host and/or other SMBus devices using the SMBus interface.

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Chapter 4: Motherboard information