19
Table 4:
Front panel LED description for the 2168A
LED
Description
Power
On (green)
when power is applied to the unit.
Off
when no power is applied to the unit.
CopperLink -
Link
On (green)
when the end-to-end CopperLink link
between the units is established.
Off
when the link
has not been established or when the link fails
CopperLink -
QOL
Flashes yellow
at different rates to indicate the
amount of error correction taking place on data pass-
ing over the CopperLink link. This is a normal operat-
ing condition and all data is passing correctly over the
link even if the link is
solidly yellow.
However, if the
LED is
solid yellow
and the
CopperLink Link LED
is Off
, then there is too much noise on the line for an
active link.
Ethernet - Link
On (green)
when the 10/100Base-T Ethernet link has
been established.
Off
when the 10/100Base-T Ether-
net link has not been established or when the link
fails. Flashes when there is Ethernet activity.
Ethernet - COL
(Collision)
Flashes yellow
to indicate Ethernet collisions are
occurring.
Ethernet - FDX
(Duplex)
On (yellow)
when in full-duplex Ethernet mode.
Off
when when operating in half-duplex Ethernet mode.
Ethernet - 100M
On (yellow)
when the link has not been established
or when operating in 100-Mbps Ethernet mode.
Off
when operating in 10-Mbps Ethernet mode.
