Nortel DualMode 800, Руководство по обслуживанию

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1-24 Equipment operation Nortel Networks Confidential
411-2051-500 Draft 00.01 November 1999
Table 1-1 shows the various transitions in LED state that may be observed
during operation.
Table 1-1
Transitions in the TRU3 LED state
State Status LED Description/Action
ON LOS FAIL CCH LCR TX
1 Power-up
(LED check) Flash Flash Flash Flash Flash Flash LEDs flash on and off for approximately
1 second, then radio goes to state 2.
2 Diagnostics Off Last
state Last
state On On Off Radio is not in service. It performs a
series of hardware diagnostic tests that
run for approximately 12 seconds. If all
tests pass, radio goes to state 3;
otherwise, it goes to state 5.
3 ROM-idle On Last
state Last
state On On Off If the radio in this state is not put into
service in one minute, it resets itself
and returns to state 2. The radio
transitions between states 2 and 3 until
it is put into service (state 6), loading
begins (state 4), or a Hard Reset
command is received from the MTX
(state 2).
4 Loading On Off Off
Flash Flash
Off The ON LED is on and the CCH and
LCR LEDs flash during the loading
period. When loading is complete, radio
returns to state 2.
5 Idle fault Off Off On Off Off Off The radio is in this state when a
hardware diagnostic test fails before
the radio is put into service. When the
radio is in this state, perform the
following:
(a) Re-seat the radio into its slot again
(or to another slot) to identify if the fail
was caused by a power supply glitch or
some other transient event.
(b) If the fault is cleared, the FAIL LED
turns off, the ON, CCH and LCR LEDs
turn on and the radio proceeds to state
2.
(c) If the FAULT LED remains on,
replace the radio and return it to your
Customer Service Office (CSO) for
repair.
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