Advantech PCI-6872 User Manual

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PCI-6872 User’s Manual
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2.24   Daughter card connector (CN27,CN28) 
CN27, CN28 are 20 pin 180degree female connectors.With daughter 
board, PCI-6872 can support 2 LAN and 4 USB ports. Detailed pin defi-
nition you will find in appendixB.