Harmonic NSG 9108, Установка оборудования

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44 Alarms for the NSG Unit
CHAPTER 3
Alarms for the NSG Unit
Alarm Message Description Solution
Web client :
GbE X Input errors
Control panel :
Input errors
Indicates a CRC error in
the input. Verify the input services are
valid from the server.
Web client :
GbE X Link down
Control panel :
Link down
This alarm can occur
for three reasons:
■
The Ethernet link of
the GbE port is not
functioning.
■
The source is not
sending a signal.
■
The source is
sending a signal
that is too weak
For an NSG with
automatic redundancy
enabled:
■
If this failure occurs
on the active GbE
channel, a
redundancy switch
is triggered and the
backup GbE
channel becomes
active.
■
If this failure occurs
on the backup GbE
channel, you
receive notification
in the alarm list and
alarm log, but the
Alarm LED does not
turn red.
1. Verify that the fiber is
properly connected to
the SFP.
2. Verify that SFP is
properly inserted.
3. Check the fiber for
physical damage.
4. Check that the source is
sending a signal.
5. Check the source signal
strength using an optical
power-meter. The
minimum light intensity
that the SFP requires to
maintain a link is:
■
850 nm SFP: - 17 dBm
■
1310 nm SFP: - 20 dBm