Network Interfaces
EPM-19 Hardware Reference Manual
44
O
N
-B
OARD
E
THERNET
S
TATUS
LED
S
Each Ethernet controller has a two-colored (green and orange) LED to provide an indication of
the Ethernet status, as follows:
LED D3 provides status for Ethernet Port 0
LED D8 provides status for Ethernet Port 1
Figure 25 shows the location of the D3 and D8 LEDs.
Figure 25. Location of Ethernet Status LEDs D3 and D8
Table 21 describes the status indications for the LEDs.
Table 21: On-board Ethernet Status LEDs (D3 and D8)
LED Color
Function
Status
Green
Link/activity
•
On – Active Ethernet cable connected (blinks with activity)
•
Off – Cable not connected (no link) or cable is not connected to
an active hub
Orange
Link speed
•
On – 100 Mbits/s
•
Off – 10 Mbits/s
O
FF
-B
OARD
E
THERNET
S
TATUS
LED
S
The signals for the Ethernet status LEDs are routed to the J9 user I/O connector, which, in turn,
can be routed to the CBR-4005B paddleboard. The Ethernet LED status signals on the
paddleboard can be connected to external LEDs through the paddleboard’s auxiliary I/O
connector. Refer to the section titled Auxiliary I/O Connector on page 51 for more information.
