Connectors Description - Seco SBC Series User Manual

3.3 Connectors description

3.3.1 Ethernet connectors
Gigabit Ethernet Port #0 - CN27
Pin Signal Pin
1 GBE0_MDI0+
2 GBE0_MDI0-
3 GBE0_MDI1+
4 GBE0_MDI2+
Gigabit Ethernet Port #1 - CN26
Pin Signal Pin
1 GBE1_MDI0+
2 GBE1_MDI0-
3 GBE1_MDI1+
4 GBE1_MDI2+
GBEx_MDI0+/GBEx_MDI0-: Ethernet Controller #x Media Dependent Interface (MDI) I/O differential pair #0. It is the first differential pair in Gigabit Ethernet mode,
and the Transmit differential pair in 10/100 Mbps modes.
GBEx_MDI1+/GBEx_MDI1-: Ethernet Controller #x Media Dependent Interface (MDI) I/O differential pair #1. It is the second differential pair in Gigabit Ethernet
mode, and the Receive differential pair in 10/100 Mbps modes.
GBEx_MDI2+/GBEx_MDI2-: Ethernet Controller #x Media Dependent Interface (MDI) I/O differential pair #2. It is the third differential pair in Gigabit Ethernet mode; it
is not used in 10/100Mbps modes.
GBEx_MDI3+/GBEx_MDI3-: Ethernet Controller #x Media Dependent Interface (MDI) I/O differential pair #3. It is the fourth differential pair in Gigabit Ethernet mode;
it is not used in 10/100Mbps modes.
SBC-A80-eNUC
SBC-A80-eNUC User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2 - Author: S.B. - Reviewed by G.G Copyright © 2017 SECO S.r.l.
On board, there are two Gigabit Ethernet connections, for the
connection of the SBC-A80-eNUC module to two different
Networks.
Signal
Both Ethernet connections are managed by as many dedicated
5 GBE0_MDI2-
Realtek RTL8111G Gigabit Ethernet controllers, interfaced to
PCI-express lanes #0 and #1.
6 GBE0_MDI1-
On each connector there are also two bicolour Green/Yellow
7 GBE0_MDI3+
LEDs: LED1 (Left LED) shows 10Mbps, 100Mbps or 1000Mbps connection: green means
8 GBE0_MDI3-
100Mbps connection, yellow means 1000Mbps connection, when the LED is Off then
10Mbps or no connection is available. LED2 (Right LED) shows ACTIVITY presence.
These two interfaces are compatible both with Gigabit Ethernet (1000Mbps) and with Fast
Signal
Ethernet (10/100Mbps) Networks. They will configure automatically to work with the existing
network.
5 GBE1_MDI2-
Please be aware that they will work in Gigabit mode only in case that they are connected to
6 GBE1_MDI1-
Gigabit Ethernet switches/hubs/routers. For the connection, cables category Cat5e or better
7 GBE1_MDI3+
are required. Cables category Cat6 are recommended for noise reduction and EMC
8 GBE1_MDI3-
compatibility issues, especially when the length of the cable is significant.
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