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Chapter 2: Installation
Overheat (OH)/Fan Fail
Connect an LED cable to pins 7 and 8 of the Front Control Panel to use the Overheat/Fan
Fail LED connections. The LED on pin 8 provides warnings of overheating or fan failure.
Refer to the tables below for pin definitions.
OH/Fan Fail Indicator
Status
State Definition
Off
Normal
On
Overheat
Flashing Fan Fail
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7
Blue UID LED
8
OH/Fan Fail LED
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1. Refer to the table below
for pin definitions.
Power Fail LED
Pin Definitions (JF1)
Pin# Definition
5
3.3V
6
Power Fail LED
OH/Fan Fail LED
20
NIC1 Link LED
19
HDD LED
PWR LED
X
Ground
NMI
X
NIC2 Link LED
3.3V Stby
Power Button
Reset Button
Reset
PWR
Ground
Ground
1
2
Power Fail LED
UID LED
3.3V
3.3V Stby
NIC2 Activity LED
NIC1 Activity LED
1
2
1. Power Fail LED
2. OH/Fan Fail LED