rtd LAN25255HR, Руководство пользователя

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RTD Embedded Technologies, Inc.
| www.rtd.com 11 LAN25255HR/LAN35255HR User’s Manual
CN5, CN7, CN9, and CN11 are standard female RJ-45 connectors. The figure below shows the pin numbering when looking into the
connector :
Figure 2: RJ-45 Jack Connector
3.3.3 T
WISTED
P
AIR
E
THERNET
CN1, CN6, CN8,
AND
CN10
CN1, CN6, CN8, and CN10 are optional connectors which can be factory installed in place of the RJ45 connector. This connector is not
installed when the RJ45 connector is installed. The pin out of CN1, CN6, CN8, and CN10 is in the table below.
Pin 1000 Function 10/100 Function RJ-45 Pin
1 MDI_B+ R 3
2 MDI_B- Receive - 6
3 MDI_C+ Not Used 4
4 MDI_C- Not Used 5
5 MDI_A+ Tr 1
6 MDI_A- Transmit - 2
7 MDI_D+ Not Used 7
8 MDI_D- Not Used 8
9 Shield Ground
10 Shield Ground
Table 5: DIL Signal Assignments
3.3.4 S
TATUS
LED
S
The tri-color LEDs on the board are used to indicate the status of the Ethernet ports.
LED Color Description
Off No Link
Green Link at 1000 Mbps
Blue Link at 100 Mbps
Red Link at 10 Mbps
Blink Activity
Table 6: Status LEDs
3.3.5 E
XTERNAL
S
TATUS
LED C
ONNECTORS
CN14
AND
CN15
CN14 and CN15 are the status LED signals that are buffered and able to source or sink 24 mA. Additionally, JP1 and JP2 can select either 3.3
volts or ground to use with these signals. The pin out is in the tables below.
CN14 Pin Function 10/100 Function
1 CN5 Link at 10 Mbps Low when linked at 10 Mbps, blink for activity
3 CN5 Link at 100 Mbps Low when linked at 100 Mbps, blink for activity
5 CN5 Link at 1000 Mbps Low when linked at 1000 Mbps, blink for activity
7 CN7 Link at 10 Mbps Low when linked at 10 Mbps, blink for activity
9 CN7 Link at 100 Mbps Low when linked at 100 Mbps, blink for activity
11 CN7 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 JP1 1-2 is shorted these pins will be ground
If JP1 2-3 is shorted these pins will be 3.3 volts
Table 7: CN14 External LED Drive