Verilink WANsuite 5330 Reference Manual page 20

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The WANsuite 5330 front panel LED status indicators are described in the
table below.
Indicator Description
MODE
Normally, the MODE indicator lights green.
This indicator lights amber while configuration is being set by
the front panel buttons or when the configuration is changed by
SNMP or through the Web server interface. The indicator will
remain amber until the changed configuration is saved; it will
revert to green when the new configuration has been saved.
NET
The NET indicator is off (not illuminated) when the port has not
been configured.
The indicator lights red if the DDS link is down or when a
connection has not yet been established.
The indicator lights green when the DDS link is operational and
the configured protocol is established.
The indicator lights amber if the DDS link is operational but at
least one configured frame relay service is down.
SERIAL
The SERIAL indicator is off (not illuminated) when the port has
not been configured.
This indicator lights green when DTR is active and the
configured protocol is established.
The indicator lights red when DTR is not active and the
configured protocol is not established.
The indicator lights amber when DTR is not active or the
configured protocol is not established.
ALARM The ALARM indicator is off (not illuminated) when no alarm
conditions exist.
The indicator lights amber to indicate an OOF alarm. (Other
alarms may also be active.)
The indicator lights red for all other alarm conditions.
POWER
The POWER indicator lights green when power is applied to
the unit.
The indicator lights amber in test modes (Port looped or BERT
active).
The user-activated input control buttons on the WANsuite 5330 are described
in the following table.
Button Description
RESET
The RESET button provides a hardware reset to the unit.
CONFIG
The CONFIG button sets the unit back to its factory default
configuration for Packet Mode operation; this is the same as a
maintenance reset. To initiate this function, you must press and hold
the CONFIG button during a power-up sequence.*
*The CONFIG button must be held until the MODE LED lights amber and remains illuminated for the
default configuration to take effect.