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E-Series LED Behavior
Line card LEDs
 Service (SRVC) indicates at least 1 port has been provisioned on this slot
 Control (CTRL) green LED indicates active controller, amber LED indicates standby
controller
 Fault (FAIL) red LED indicates the card is in fault
 Cards have additional LED states at boot time (see table below)
Port LEDs
 Green LED (Ethernet) that stays on indicates a link with no activity, flashes during
activity.
 Green LED (GPON port) that stays on indicates at least 1 ONT is ranged, blinks when
the first ONT is ranging.
 Green LED (DSL port) that stays on indicates at least one DSL subscriber port is
synched up and operating correctly (the system is up, operational, and ready to or able to
pass traffic).
 Green LED (POTS port) that stays on indicates, indicates at least one POTS subscriber
port is operating correctly (the system is up, operational, and is off-hook).
 Red LED (10GE) indicates a module is inserted into a port that is redirected to the
backplane.
 Inserting a supported module into a port causes the LED to blink green 3 times,
indicating module recognition.
 If no blinking occurs on module insertion, the module is not supported/recognized; An
alarm is present in this situation.
Line card LED boot sequence