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12
LAN25255HR/LAN35255HR User’s Manual
CN15 Pin
Function
10/100 Function
1
CN9 Link at 10 Mbps
Low when linked at 10 Mbps, blink for activity
3
CN9 Link at 100 Mbps
Low when linked at 100 Mbps, blink for activity
5
CN9 Link at 1000 Mbps
Low when linked at 1000 Mbps, blink for activity
7
CN11 Link at 10 Mbps
Low when linked at 10 Mbps, blink for activity
9
CN11 Link at 100 Mbps
Low when linked at 100 Mbps, blink for activity
11
CN11 Link at 1000 Mbps
Low when linked at 1000 Mbps, blink for activity
2, 4, 6, 8, 10, 12
3.3 volts or ground
Depends on JP2 setting
If JP2 1-2 is shorted these pins will be ground
If JP2 2-3 is shorted these pins will be 3.3 volts
Table 8: CN15 External LED Drive
3.3.6
B
US
C
ONNECTORS
CN1(Top) & CN2(Bottom): PCIe Connector
The PCIe connector is the connection to the system CPU. The position and pin assignments are compliant with the
PCI/104-Express
Specification
. (See PC/104 Specifications on page 19)
The LAN25255HR and LAN35255HR are “Universal” boards, and can connect to either a Type 1 or Type 2 PCIe/104 connector.
CN3: PCI Connector
The PCI connector is the connection to PCI peripheral modules. This connector is used only as a pass through connector on this board.
