![S&T Kontron 3.5](http://html1.mh-extra.com/html/sandt/kontron-3-5-eio-gpa/kontron-3-5-eio-gpa_user-manual_3080116025.webp)
3.5"-eIO-GPA - User Guide, Rev. 1.0
// 25
6.3.
Ethernet Connectors (CN9 & CN10)
The 3.5"-eIO-GPA supports two channels of 10/100/1000/2500 Mbit Ethernet, which are based Intel® I225-LM/IT
controllers.
In order to achieve the specified performance of the Ethernet port, Category 5 twisted pair cables must be used with
10/100 MByte and Category 5E, 6 or 6E with 1 Gbit/2.5Gbit LAN networks.
The signals for the Ethernet ports are as follows:
Figure 12: Ethernet Connector CN9, CN10
1 2 3 4 5 6 7 8
Table 10: Pin Assignment Ethernet Connectors CN9, CN10
Pin
Signal
Note
1
TX1+
2
TX1-
3
TX2+
4
TX3+
5
TX3-
6
TX2-
7
TX4+
8
TX4-
Signal Description
Signal
Description
TX1+ / TX1-
In MDI mode, this is the first pair in 2.5GBase-T and 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.
TX2+ / TX2-
In MDI mode, this is the second pair in 2.5GBase-T and 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.
TX3+ / TX3-
In MDI mode, this is the third pair in 2.5GBase-T and 1000Base-T, i.e. the BI_DC+/- pair. In
MDI crossover mode, this pair acts as the BI_DD+/- pair.
TX4+ / TX4-
In MDI mode, this is the fourth pair in 2.5GBase-T and 1000Base-T, i.e. the BI_DD+/- pair.In
MDI crossover mode, this pair acts as the BI_DC+/- pair.
'MDI' -- media dependent Interface
LED status:
Off - Link is down
Flashing Yellow - Link is up and active
Steady Yellow - Link is up, no activity
LED status:
Orange - 1000 Mbit/s link established
Green -- 2.5 Gbit/s link established
Off -- 10/100 Mbit/s link established