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14
LAN35H08HR & LAN35E08HR User’s Manual
3.3.3
RJ45
T
WISTED
P
AIR
E
THERNET
,
P
ORT
1
–
P
ORT
8
(LAN
X
08HR-RJ
ONLY
)
Port 1
–
Port 8 are UTP (Unshielded Twisted Pair) wiring normally used for 10/100/1000 Base-T Ethernet. The following table gives the pin
out of Port 1
–
Port 8.
Pin
1000 Function
10/100 Function
1
MDI_A+
Tr
2
MDI_A-
Transmit -
3
MDI_B+
R
4
MDI_C+
Not Used
5
MDI_C-
Not Used
6
MDI_B-
Receive -
7
MDI_D+
Not Used
8
MDI_D-
Not Used
Table 5: RJ45 Signal Assignments
Port 1
–
Port 8 are standard female RJ-45 connectors. The figure below shows the pin numbering when
looking into the connector
:
Figure 5: RJ-45 Jack Connector
3.3.1
12-
PIN
SIL
P
OWER
,
CN6
(LAN35H08HR
ONLY
)
CN6 is a power connector to allow use in a standalone system. The board only re5V and ground, however if +12V is supplied it will
power the PCIe/104 bus connectors. CN6 is only on the LAN35H08HR versions. The pin out is listed in the table below.
Pin
Function
1
Ground
2
+5V
3
+5V
4
Ground
5
Ground
6
+12V
7
+12V
8
Ground
9
Ground
10
+5V
11
+5V
12
Ground
Table 6: Power Signal Assignments
3.3.2
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, flash with activity
Blue
Link at 100 Mbps, flash with activity
Red
Link at 10 Mbps, flash with activity
Table 7: Status LEDs
3.3.3
E
XTERNAL
S
TATUS
LED
C
ONNECTORS
CN7
AND
CN9
CN7 and CN9 are the status LED signals that are buffered and able to sink 24 mA. Each signal is driven low when active and tri-stated when
inactive, has a 374 Ohm current limiting resistor, and supports being pulled up to +5 volts. The drive circuit is shown below:
