Asus RS120-E5/S - Manual (Page 64)

Chapter 4: Motherboard information 4-14
11. 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.
P5BV-R
®
P5BV-R Auxiliary panel connector
AUX_PANEL1
I2C_4_DATA# LOCATORLED1+
+5VSB LOCATORLED1-
LAN1_LINKACTLED- LOCATORBTN#
LAN1_LINKACTLED+ GND
+5VSB
I2C_4_CLK#
GND GND
LAN2_LINKACTLED+ LOCATORLED2-
LAN2_LINKACTLED- LOCATORLED2+
CASEOPEN
PIN 1
NC
Front panel SMB
LAN activity LED
Chassis intrusion
Locator LED
and 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
and is marked by a triangle. Take note of the Pin1 when reconnecting the cable
plug to prevent incorrect insertion.