COMMELL LE-37D - Manual (Page 24)

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Jumper: JCSEL1,JCSEL2
Type: 12-pin (6 x 2) & 8-pin (4 x 2) for set COM2 mode jumper
2.12 <PCIe Mini Card and SIM Interface>
The board provides two PCIe mini card slot and a SIM slot.
MINI_CARD1 is the first Mini-PCIe slot for long size Mini-PCIe cards.
MINI_CARD1 can selectively support mSATA.
MINI_CARD2 is the second Mini-PCIe slot for long size Mini-PCIe cards.
However, if you are trying to use 3G Mini-PCIe card with your SIM card, first, put your
SIM card into the slot, then put your 3G Mini-PCIe card into the MINI_CARD2.
Power Mode JP1/2
Pin 9 with 5V Power 1-2
Pin 9 with 12V Power 3-4
Standard COM port 5-6
Default setting (5-6)