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11 ethernet connectors, 1 ethernet connector (lan), Ethernet connectors – Kontron KTUS15-mITX - 1.1 Basic User Manual

Page 36: Ethernet connector (lan)

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KTD-00774-G

KTUS15/mITX

Page 36 of 84

4.11

Ethernet Connectors

The KTUS15 board support 1 channel of 10/100/1000Mb Ethernet using the Intel® 82574L PCI express LAN

controller.

In order to achieve the specified performance of the Ethernet port, Category 5 twistedpair 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.

4.11.1

Ethernet Connector (LAN)

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