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Chapter 4: Motherboard Connections
TPM/Port 80 Header
A Trusted Platform Module (TPM)/Port 80 header is located at JTPM1 to provide TPM support
and a Port 80 connection. Use this header to enhance system performance and data security.
Refer to the table below for pin definitions.
Trusted Platform Module Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
+3.3V
2
SPI_CS#
3
RESET#
4
SPI_MISO
5
SPI_CLK
6
GND
7
SPI_MOSI
8
9
+3.3V Stby 10
SPI_IRQ#
COM Header
One COM header (COM1) is located on the motherboard. Refer to the table below for pin
definitions.
COM Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
Ground
10
N/A
Nano SIM Slot
The JSIM1 slot supports a Nano SIM card.
Mini PCI-E x1 Connector
This connector can support storage devices such as a mini PCI-E SSD hard drive.
LAN Activity Header
JLANLED1 is the activity LED header for LAN1 through LAN4.
LAN Activity LED
Pin Definitions
Pin#
Definition
1
3V3 Stby
2
LAN3_ACT_N
3
3V3 Stby
4
LAN4_ACT_N