Mitel 3300, Technician'S Handbook

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3300 ICP Technician’s Handbook
Universal NSU LED States
Table 85: Universal NSU LED States
LED State Meaning
LAN flashing LAN activity
MS (message
system) solid green Message link open to the system
OFF Message link not open to the
system; may be downloading when
L0 and L1 are “walking”
ST (status) flashing Operational; flashing at 0.5 sec
intervals
OFF Not operational
solid Card is booting or not operating;
should be blinking at 0.5 sec
intervals
L0 and L1
(on front and
rear) right side - solid red No Layer 1
right side - OFF No error
left side - solid green D-channel established (PRI)
Layer 1 established (T1, E1,
DPNSS)
left side - flashing
green Layer 1 established (PRI)
left side - OFF No link
right side - yellow with
left side - flashing
green Alarm indication from far end
right side - yellow
with left side - OFF Blue alarm from card - normal
during link startup (PRI NA or
response to yellow)
yellow and green
alternating between L0
and L1 Downloading (15 - 25 minutes)
yellow alternating
between L0 and L1 Decompressing and copying files
(2 - 4 minutes)
Note : When the LEDs are alternating, NSU is powering up. Do NOT interrupt or
you might corrupt the card software.