RTD Embedded Technologies, Inc.
|
www.rtd.com
10
LAN25255HR/LAN35255HR User’s Manual
Connectors and Jumpers
3.3
Figure 3: LAN25255HR/LAN35255HR Board Connections
3.3.1
E
XTERNAL
I/O
C
ONNECTORS AND
J
UMPERS
CN5/7/9/11: RJ-45 connectors for Ethernet access
CN4/6/8/10: 2x5 0.1” DIL connector not populated in standard product. Used for bringing out the Ethernet ports in an IDAN system.
CN14/15: External LED connectors
JP1 and JP2: Power for external LED connectors CN14 and CN15
CN12 and JP3: Factory use only
3.3.2
RJ45
T
WISTED
P
AIR
E
THERNET
,
CN5,
CN7,
CN9,
CN11
Connectors CN5, CN7, CN9, and CN11 are for UTP (Unshielded Twisted Pair) wiring normally used for 10/100/1000 Base-T Ethernet. It is the
default factory installed twisted pair connector on the board. The following table gives the pin out of CN5, CN7, CN9, and CN11.
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 4: RJ45 Signal Assignments
Link/ACT LED
CN5 Switch Port
Link/ACT LED
CN11 Switch Port
Link/ACT LED
CN9 Switch Port
JP1 LED Power
CN14 External LEDs
for CN5 & CN7 Ports
Link/ACT LED
Onboard Ethernet
JP2 LED Power
CN15 External LEDs
for CN9 & CN11 Ports
CN1 & CN2: PCIe/104 Connector
CN3: PCI-104 Connector
Link/ACT LED
CN7 Switch Port
