Supermicro SuperServer SYS-221H-TNR - Control Panel

79
Chapter 4: Motherboard Connections
Control Panel
Front Control Panel Header with I²C
There are two front control panel headers located on this motherboard. Front control panel
header 1, located at JFP1, contains header pins for various buttons and LED indicators with
I²C support for front access. These front control panel headers are designed specically for
use with Supermicro chassis. See the gure below for the pin-out descriptions for JFP1.
Power Button
HDD Acitivity LED
Ground
Ground
P5V_USB
I2C Clock
Fail LED_N (OH/FF/PF)
19
Ground20
1
2
Reset/UID Button
P3V3_STBY
Power Fail LED_N
Standby LED_N
Power Fail LED_P
JFP1
LAN-1 Activity LED (Aggregate all LAN)
I2C Data
UID LED_N
LAN-2 Activity LED
Power/RoT LED_N
P5V_USB
P5V_USB
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Figure 4-1. JFP1 Header Pins