SYS-ITX-N-3900/Configuration
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Page 15
Layout and Pin Reference
On-board Ethernet activity LEDs are built into the connectors at J4 and J5.
There is one green LED (left) and one bi-color green/yellow LED (right).
8.3.5 USB 3.1 Gen 1 Connector (J6)
J6 provides two USB 3.1 Gen 1 Type A connectors.
Pin Reference
Pin
Function
Description
1
TX_D1+
Transceive Data+
2
TX_D1-
Transceive Data-
3
RX_D2+
Receive Data+
4
BI_D3+
Bi-Directional Data+
5
BI_D3-
Bi-Directional Data-
6
RX_D2-
Receive Data-
7
BI_D4+
Bi-Directional Data+
8
BI_D4-
Bi-Directional Data-
LED
Activity
Ethernet Status
Left
Off
No Link
Flashing (green) Linked
Right
Off
No Link
Off
Linked at 10 MB
On (yellow)
Linked at 100 MB
On (green)
Linked at 1 GB
J4
J5
1
8
Pin
Description
Pin
Description
1
USBVCC
6
RX+
2
D-
7
GND
3
D+
8
TX-
4
GND
9
TX+
5
RX-
9
5
1
4