Headers And Connectors - Supermicro SuperServer SYS-E302-12D-4C User Manual

4.2 Headers and Connectors

Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intrusion when the chassis is opened. Refer to
the table below for pin definitions.
MH4
COM Header
The motherboard has one COM header (COM1) that provides a serial connection .
JSLIM1
COM Header (COM1)
Pin Definitions
Pin# Definition
1 DCD
3 RXD
5 TXD
7 DTR
9 Ground
General Purpose I/O Header
The General Purpose Input/Output (GPIO) header at JPG1 is a general purpose I/O expander
on a pin header via the SMBus. Each pin can be configured to be an input pin or output pin
in 2.54mm pitch. The GPIO is controlled via the PCA9554APW 8-bit GPIO expansion from
PCH SMBus. The base address is 0xEFA0. The expander slave address is 0x70 for WRITE
and 0x71 for READ. See the table below for pin definitions.
Chassis Intrusion
Pin Definitions
Pin# Definition
1 Intrusion Input
2 Ground
Pin# Definition
2 DSR
4 RTS
6 CTS
8 RI
10 N/A
General Purpose I/O Header
Pin Definitions
Pin# Definition Pin#
1 +3.3V Standby 2
3 GP0 4
5 GP1 6
7 GP2 8
9 GP3 10
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Chapter 4: Motherboard Connections
JMD3
M.2-H PCIe 3.0 X1
JF1
1
LED1
9
Definition
GND
GP4
GP5
GP6
GP7
2
COM1
10