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SGPIO
The T-SGPIO1/ T-SGPIO2 (Serial General
Purpose Input/Output) headers provide a bus
between the SATA controller and the backpane
to provide SATA enclosure management
functions. Connect the appropriate cable
from the backplane to the T-SGPIO1 header
to utilize SATA management functions on
your system.
Power I2C
The JPI2C1/JPI2C2 headers are for power
2
I
C, which may be used to monitor the
status of the power supply, fan and system
temperature. See the table on the right for
pin defi nitions.
Chassis Intrusion
A Chassis Intrusion header is located at JL1.
Attach the appropriate cable to inform you of
a chassis intrusion.
Overheat LED
Connect an LED to the JOH1 header to
provide warning of chassis overheating. See
the table on the right for pin defi nitions.
IPMB
A System Management Bus header for the
IPMI slot is located at IPMB. Connect the
appropriate cable here to use the IPMB I2C
connection on your system.
Chapter 4: System Safety
SGPIO Header Pin Defi nitions
(T-SGPIO1/TSGPIO2)
Pin# Defi nition
1
NC
3
Ground
5
Load
7
NC
Note: NC indicates no connection.
Pin Defi nitions
Pin# Defi nition
1
2
3
4
Chassis Intrusion
Pin Defi nitions
Pin# Defi nition
1
2
Overheat LED
Pin Defi nitions
Pin# Defi nition
1
2
Pin Defi nitions
Pin# Defi nition
1
2
3
4
15
Pin # Defi nition
2
NC
4
Data
6
Ground
8
NC
Power I
2
C
(JPI2C)
Data
Ground
Clock
NC
(JL1)
Battery voltage
Intrusion signal
(JOH1)
3.3V
OH Active
IPMB
Data
Ground
Clock
No Connection
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