
15
Board Layout
Chapter 3
Embedded and Industrial Computing
Connectors and Jumpers List
The tables below list the function of each of the board
jumpers and connectors by labels shown in the above
section. The next section in this chapter gives pin
definitions and instructions on setting jumpers.
Table 3.1 Connector List for LEK-IOA5 Board
Labels Function Pin Denition Reference
Page
CN1 RS232 Serial Port 2 P16
CN2 RS232 Serial Port 3 P16
CN3 RS232 Serial Port 4 P16
CN4 Digital I/O P16
CON1 Multiple I/O Connector P16
COM1 RS232 Port 1 P16
Note: Daughter boards such as COM ports and low-profile PCIe extension boards can only be inserted
to the mainboards that has the same version as the extension boards. The board version is shown on
top of the boards. Failure to do so may damage the system.
Table 3.2 Connector List for LEB-2280 Board
Labels Function Pin Denition Reference
Page
CMOS1 Cleaning CMOS data including RTC P17
CMOS2 Cleaning CMOS data only P17
COMSLT1 Daughter board LEK-IOA3 enable/disable P21
COMSLT2 Daughter board LEK-IG1 enable/disable P21
CN3 (optional) Optional Power Connector with Power
-ignition Control
P21
CN4 DC-in Power Connector P20
DCJK1 (optional) Optional DC Jack type of Power Connector P21
DVID1 DVI-D Connector P19
FAN1/FAN2 System Fan Connector P19
Front1 Front Panel Function Pin Header P18
HDMI1 HDMI Port P19
Ignition1(optional) Connector for power Ignition Control P21
J1 PEG16X Lane Function Selection P20
LAN1/LAN2 Ethernet Connector 1/Ethernet Connector 2 P21
LPC1 Low Pin Count Interface Reserved for factory use
KBM1 Keyboard and Mouse Connector P21
MIO1 COM and Audio Expansion Card Connector P18
MPCIE1 Mini-PCIe Connector P20
MPCIE2 Mini-PCIe Connector P20
PCIEIO1 PCI/PCIE Expansion connector for PCI or PCIe
low prole card (PCIEIO1, on the backside)
P19
PWR1 Right-angled SATA Power Connector P18
RST1 Reset Button P20
SATA1/SATA2 Serial-ATA Connector (SATA2 supports SATA-
DOM)
P17
SATA_PW2 Switch for SATA port 2 power state P22
SATA_PWR1 SATA Power Connector P17
SIM1 SIM Card Reader P18
SPI1 Serial Peripheral Interface Bus Reserved for factory use
USB1/USB2/USB3 USBTypeAConnector#0,1;#2,3;#4,5 P17
USB4 USB Pin Header P17
VGA1 VGA Port P19
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