Grass Valley Thunder 80 v.1.0 - Manual (Page 46)

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System Implementation
Operation
Condition 1 – No optical signal present
• Illuminates solid red in the absence of optical power to the primary SFP receiver.
Condition 2 – Channel in use
• Illuminates solid green when a valid optical signal is applied to the primary SFP
receiver, and indicates that the primary channel is the one currently in use for
communication with the remote Thunder Chassis.
Condition 3 – Channel not in use, but optical signal present. This feature informs the user
that optical power is available on the unused channel, making them aware that if an
automatic redundancy switchover should occur, the backup optical power is ready and
available.
• Flickers briefly at ≈2 second intervals to indicate the presence of optical power to the
primary SFP receiver. The color of the flicker indicates the level of optical power being
received (color will match that of the “Optical Power Meter” display if it is currently
being used for this channel).
a Red flash: -24 to -27dBm input
b 66% red/33% green flicker: -21 to -23dBm input
c 33% red/66% green flicker: -18 to -20dBm input
d Green flash: ≥-15dBm input
Condition 4 – SFP not installed
• Flashes red at ≈2 times per second when the SFP used in the primary (top) dock of the
dual SFP cage is either faulty or not installed correctly.
OPT - IN 2
Indicates status/conditions of the secondary (backup) SFP optical receiver.
Condition 1 – No optical signal present
• Illuminates solid red in the absence of optical power to the secondary (backup) SFP
receiver.
Condition 2 – Channel in use
• Illuminates solid green when a valid optical signal is applied to the secondary (backup)
SFP receiver, and indicates that the secondary (backup) channel is the one currently in
use for communication with the remote Thunder Chassis.
Condition 3 – Channel not in use, but optical signal present. This feature informs the user
that optical power is available on the unused channel, making them aware that if an
automatic redundancy switchover should occur, the backup optical power is ready and
available.
• Flickers briefly at ≈2 second intervals to indicate the presence of optical power to the
secondary (backup) SFP receiver. The color of the flicker indicates the level of optical
power being received (color will match that of the “Optical Power Meter” display if it is
currently being used for this channel).
a Red flash: -24 to -27dBm input
b 66% red/33% green flicker: -21 to -23dBm input
c 33% red/66% green flicker: -18 to -20dBm input
d Green flash: ≥-15dBm input