Kontron KT690-mITX (BGA) - dual core - Manual (Page 48)

KT690 Family
KTD-00738-J Public User Manual Date 2012-06-01 Page 48
Ethernet connectors. 4.12
The KT690/mITX boards supports 2 channels of 10/100/1000Mb Ethernet RTL8111B LAN controllers.
In order to achieve the specified performance of the Ethernet port, Category 5 twisted pair cables must be
used with 10/100MB and Category 5E, 6 or 6E with 1Gb LAN networks.
The signals for the Ethernet ports are as follows:
Signal Description
MDI[0]+ In MDI mode, this is the first pair in 1000Base-T, i.e. the BI_DA+/- pair, and is the transmit
pair in 10Base-T and 100Base-TX.
In MDI crossover mode, this pair acts as the BI_DB+/- pair, and is the receive pair in
10Base-T and 100Base-TX.
MDI[0]-
MDI[1]+ In MDI mode, this is the second pair in 1000Base-T, i.e. the BI_DB+/- pair, and is the
receive pair in 10Base-T and 100Base-TX.
In MDI crossover mode, this pair acts as the BI_DA+/- pair, and is the transmit pair in
10Base-T and 100Base-TX.
MDI[1]-
MDI[2]+ In MDI mode, this is the third pair in 1000Base-T, i.e. the BI_DC+/- pair.
In MDI crossover mode, this pair acts as the BI_DD+/- pair.
MDI[2]-
MDI[3]+ In MDI mode, this is the fourth pair in 1000Base-T, i.e. the BI_DD+/- pair.
In MDI crossover mode, this pair acts as the BI_DC+/- pair.
MDI[3]-
Note: MDI = Media Dependent Interface.
4.12.1 Ethernet connectors (ETHER1 and ETHER2)
Ethernet connector 1 is mounted together with USB Ports 8 and 9.
Ethernet connector 2 is mounted together with USB Ports 4 and 5.
The pinout of the RJ45 connector is as follows:
Signal PIN Type Ioh/Iol Note
MDI0+
MDI0-
MDI1+
MDI2+
MDI2-
MDI1-
MDI3+
MDI3-
8 7 6 5 4 3 2 1