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JRC NTG337-EL0 Instruction Manual Page 63

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(2) State transition
The table below shows how each LED changes its state after the power is turned on until the unit
becomes operable.
Table 4-2 LED State Transition when the Power is Turned On (Point to Multipoint system)
Immediately
after the power
is turned on
a
POW
Lit
b
ETHER
Extinguished
(Extinguished)
c
ALM
Extinguished
*Flashing for 500msec. (On for 500msec. and off for 500msec.)
(3) Lighting conditions
The table below shows when the ALM LED lights.
Operation state
During
authentication
During operation
Carrier off
*Flashing for one second (On for one second and off for one second)
Several
seconds
after the
power is
turned on
Lit
Lit
(Lit)
Lit
Table 4-3 Lighting Conditions of the ALM LED in the Out-of-Service State
(Point to Mulitipoint system)
Out of service
ALM LED=Extinguished
ALM LED=Flashing*
ALM LED=Extinguished
Radio
Authenticating
synchronizati
after radio
on lost
synchronization
is reestablished
Lit
Lit
Extinguished
Extinguished
(Lit/Flashing)
(Lit/Flashing)
Lit
Flashing*
Out-of-service state
ALM LED=Extinguished
ALM LED=Extinguished
ALM LED=Extinguished
4-40
Operating
after
authenticatio
n is finished
Lit
Extinguished
The state
(Lit/Flashing)
within
parentheses
is that when a
PC is
connected.
Extinguished
Cleared
Remarks

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