10
2.2 LED Indicators
The front panel LED indicators are shown below and explained in the following table.
This information can be used to check the status of the device and its connections.
LED
Color Mode Description
On
Power on
Green
Off
Power off
POWER
Red
On
POST (Power On Self Test) failure (not bootable) or
Device malfunction
1
On
IP connected and no traffic detected
2
Off
Modem power off or modem in bridged mode
Green
Blink
IP connected and IP Traffic is passing thru the
device (either direction)
INTERNET
Red
On
Device attempted to become IP connected and
failed (no DHCP response, no PPPoE response,
PPPoE authentication failed, no IP address from
IPCP, etc.)
On
The DSL1 link is established.
Off
The DSL1 link is not established.
DSL1
Green
Blink
DSL1 attempting sync:
l
Flashing at 2 Hz with a 50% duty cycle when
trying to detect carrier signal
l
Flashing at 4 Hz with a 50% duty cycle when
the carrier has been detected and the modem
is trying to train
On
The DSL2 link is established.
DSL2
Green
Off
The DSL2 link is not established.
1
A malfunction is any error of internal sequence or state that will prevent the device from
connecting to the DSLAM or passing customer data. This may be identified at various times
such after power on or during operation through the use of self testing or in operations which
result in a unit state that is not expected or should not occur.
2
IP connected (the device has a WAN IP address from IPCP or DHCP and DSL is up or a
static IP address is configured, PPP negotiation has successfully complete
–
if used
–
and DSL
is up ) and no traffic detected. If the IP or PPPoE session is dropped for any other reason, the
light is turned off. The light will turn red when it attempts to reconnect and DHCP or PPPoE
fails
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