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Chapter 2: Installation
Power Button
UID LED
NIC1 Active LED
Reset Button
HDD LED
PWR LED
Reset
PWR
3.3V Stby
3.3V Stby
Ground
19
X
Ground
X
3.3V Stby
20
1
2
Ground
Power Fail LED
NIC2 Active LED
NMI
3.3V
3.3V
OH/Fan Fail LED
1
2
Overheat/Fan Fail and UID LED
Connect an LED cable to pins 7 and 8 of the Front Control Panel to use the UID/Overheat/
Fan Fail LED. UID LED indicates a unit that might need service is identified; while the OH/
FanFail LE provides warnings when an overheating or fan failure occurs. 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 LED (UID)
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
PWR Supply Fail
1. Front UID LED
2. OH/Fan Fail LED
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