Supermicro SuperServer SYS-221H-TNR - Page 82

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Chapter 4: Motherboard Connections
RoT (Root of Trust) Power LED
The Power LED for RoT (Root of Trust) connection is located on pin 9 of JFP1. If this LED
is on, power for the RoT chip is on.
Power Fail LED Indicators
Power Failure LED Indicators are located on pins 15 and 19 of JFP1. Refer to the table below
for pin denitions.
FP Power LED
Pin Denitions (JFP1)
Pin# Denition
15 PWR Failure LED-Positive
19 PWR Failure LED-Negative
Standby Power
A Standby Power (I
2
C) connection is located on pin 10 ~ pin 14 of JFP1 to provide power to
the system when it is in standby mode. Refer to the table below for pin denitions.
3.3V Standby PWR
Pin Denitions
Pin# Denition
10 P3V3 Standby
11 Ground
12 I²C Data
13 I²C Clock
14 Ground
FP USB Power
Front Panel USB power connections are located on pin 16 ~ pin 18 of JFP1 to provide power
to for front USB devices. Refer to the table below for pin denitions.
FP USB PWR
Pin Denitions
Pin# Denition
16
+5V USB PWR17
18
Front Control Panel Header 2
In addition to Front Control Panel header 1 (JFP1), Front Control Panel header 2 (JFP2), also
located on the front side of the chassis, provides additional functions, including USB and VGA
support to the system. Refer to the motherboard layout in Chapter 1 for the location of JFP2.