Kontron KTQM87-mITX - Manual (Page 27)

KTD-N0886-A Page 25 IO-Area Connectors
KTQM87/mITX Users Guide
Ethernet Connectors 6.2
The KTQM87 supports two channels of 10/100/1000Mb Ethernet, one (LAN1) is based on Intel® Clarkville
i218LM Gigabit PHY with AMT 9.0 support and one other controller (LAN2) are based on Intel® Pearsonville
i218AT PCI Express controller.
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]+ / 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[1]+ / 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[2]+ / 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[3]+ / 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.
Note: MDI = Media Dependent Interface.
Ethernet LAN1 (connector J9) is mounted together with USB Ports 10 and 11.
Ethernet LAN2 (connector J10) is mounted together with USB Ports 4 and 5.
The pinout of the RJ45 connectors is as follows:
Signal PIN Type Ioh/Iol Note
MDI0+
MDI0-
MDI1+
MDI2+
MDI2-
MDI1-
MDI3+
MDI3-
Flashing =>
communication
On => 1GB link
8 7 6 5 4 3 2 1