ETH100 Rev.
7
7.2
Indicators for electrical Ethernet ports
The status of the electrical Ethernet ports is indicated with 6 Light Emitting Diodes (LEDs), 3
for each electrical port. The LEDs are located in the upper left corner of the ETH100 board,
so you have to remove the front cover of the sub rack to inspect them.
The LEDs are labelled E1 and E2 for electrical port #1 and electrical port #2.
LED
Description
On (green light)
Off (no light)
LINK
Ethernet link
The Ethernet link is established.
No link (Is the cable
connected, and is the
equipment in the other end of
the cable switched on?)
ACT
Activity
Flashes when Ethernet packets
are sent over the Ethernet port.
When the Ethernet activity is
high, this will be on
continuously.
The Ethernet port is idle, no
packets are sent.
SPEED Ethernet speed
The link is established in
100Base-TX mode (100Mbit/s).
The link is established in
10Base-T mode (10Mbit/s).
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