Instruction manual

2.0 ADDITIONAL INFORMATION
2.1 LED Indicators
(A pulsing LED blinks steadily at a rate of once per second. A flashing LED blinks at a more
rapid, less constant rate.)
LED
State Indication Additional Information
Power solid green unit is operational If the Power LED is not illuminated, it is likely that
the DNE4500-P-6 is not receiving power and
therefore none of the LEDs will be illuminated.
Lnk/Alm pulsing
green
DS3 connection is established
and operational
T
he port is receivin
g
valid data or status packets from
the remote DNE4500.
solid green DS3 connection is established A connection exists but there is indication of a
problem with the DS3 line.
no
illumination
Red Alarm
The incoming connection to
the port has been lost; no
data is being received.
If the outgoing connection from the port has also
been lost then the remote DNE4500 will be in Red
Alarm as well.
(see NOTE below)
solid amber Yellow Alarm
The outgoing connection from
the port has been lost; no
data is being transmitted.
T
he remote DNE4500 has lost its incomin
g
connection
and is in Red Alarm.
(see NOTE below)
pulsing
amber
Blue Alarm
An indirect connection has
been lost; the port may no
longer be receiving data from
the remote DNE4500.
The remote DNE4500 has lost a connection with an
intermediate device and is in Red or Yellow Alarm.
(see NOTE below)
Fast
Ethernet
100
solid green Fast Ethernet connection (100
Mbps) is established
If the Fast Ethernet 100 LED is illuminated, the Fast
Ethernet Lnk LED will also be illuminated.
no
illumination
no Fast Ethernet connection If the Fast Ethernet 100 LED remains unlit but the
Fast Ethernet Lnk LED is illuminated then a
connection has been established at 10 Mbps rather
than 100 Mbps.
Fast
Ethernet
Act
pulsing
amber
typical Ethernet activity The port is transmitting or receiving data across the
Ethernet.
solid amber heavy traffic The port is transmitting or receiving large amounts of
data across the Ethernet.
no
illumination
no Ethernet activity Either there is no Ethernet link or a link exists but
there is no activity.
Fast
Ethernet
Lnk
solid green Ethernet connection is
established and operational
If the Fast Ethernet Lnk LED is illuminated but not the
Fast Ethernet 100 LED then a 10 Mbps connection
has been established. If the Fast Ethernet 100 LED is
also illuminated, then a 100 Mbps connection has
been established.
no
illumination
no Ethernet connection The Fast Ethernet Act and 100 LEDs will remain unlit
by default.
N
OTE
When a port is in a state of DS3 alarm, that port's Ethernet link will be disabled.
220-0000018 rev 02