Chapter 5: Operation
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5. Operation
5.1 LED Operation
Each module features diagnostic LEDs that provide information on features
and ports.
LED Function
VDSL2
RAI The Remote Alarm Indication LED is YELLOW
when the unit at the far end of the Unit has an alarm
FL Fault Loopback will be ON GREEN if this function is
enabled and BLINK if it is actively inhibiting the
Ethernet port due to a LOS of the VDSL line
LOS The LOS LED is RED when the VDSL port is down.
ER The ERROR LED will Blink YELLOW when the
VDSL line receives a symbol error. ON if the VDSL
bandwidth falls below the user defined level.
LINK QUALITY
8-4-2-1 These 4 GREEN LEDs form a binary code
indicating the MAX bandwidth the VDSL line can
support.
DATA
OVF Overflow LED will Blink YELLOW when frames are
lost due to congestion on the VDSL line.
LFPT Link Fault Pass-Through will be ON GREEN if this
function is enabled and BLINK if it is actively
inhibiting the Ethernet port due to a LOS of the far
end TX line.
LOS The LOS LED is RED when the DATA port is down.
ER The ER LED is YELLOW when the DATA port
receives an error.
The VDSL2 will generate a Trap (when enabled in iView
2
) whenever a Loss
of Signal (LOS) occurs. In addition, the end user can set a VDSL Quality
Level that will generate a Trap if the line fails below that set level.
