Expansion Hub Front Panel
4-6
InterReach Fusion Wideband Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620616-0-20 Rev F
Green / Green
Green / Green
(60-ppm)
• Optical power received is above minimum (the Main Hub is con-
nected) although the cable optical loss may be greater than recom-
mended maximum.
• Optical power transmitted (uplink laser) is normal and communica-
tions with the Main Hub are normal.
• The Expansion Hub is reporting a commanded lockout.
Green / Red
Red / Green
Green / Red
(60-ppm)
• A fault condition was detected, optical power received is below mini-
mum.
• The Main Hub is not connected, is not powered, or the Main Hub’s
downlink laser has failed, or the downlink fiber is disconnected or
damaged.
• An optical signal was detected, but there has been no valid communi-
cation from the MH in the preceeding 90 seconds.
Green / Green
Red / Red
Red / Red
(60-ppm)
• The Expansion Hub is reporting a fault condition.
• Optical power received is above minimum (Main Hub is connected)
although the cable optical loss may be greater than recommended
maximum.
• Optical power transmitted is below minimum (Expansion Hub uplink
laser has failed; unable to communicate with Main Hub).
UL STATUS
LED state must be checked within the first 90 seconds after power on.
If initially green, then red after 90 seconds, it means that there is no
communication with the Main Hub. If red on power up, replace the
Expansion Hub.
• No optical faults have been detected, but no valid message was
received from the MH in the preceeding 90 seconds.
Green / Red
Red / Red
• Optical power received is below minimum (the Main Hub is not con-
nected, is not powered, or the Main Hub’s downlink laser has failed,
or the downlink fiber is disconnected or damaged.)
• Optical power transmitted is below minimum (the Expansion Hub
uplink laser has failed; is unable to communicate with the Main Hub).
UL STATUS
LED state must be checked within the first 90 seconds
after power on. If initially green, then red after 90 seconds, it means
that there is no communication with the Main Hub. If red on power
up, the uplink laser has failed, replace the Expansion Hub.
Green /Off
Green / Off
• Expansion Hub is in factory test mode, return it to the factory.
Red/ Don’t
Care
Red/ Don’t
Care
• One or more power supplies are out of specification. The hub needs to
be replaced.
Green/ Red
Off/ Off
• Expansion Hub failure. The Hub must be replaced.
Table 4-1
Expansion Hub Unit Status and DL/UL Status LED States (continued)
LED State
Indicates
POWER
EH STATUS
DL STATUS
UL STATUS
POWER
EH STATUS
DL STATUS
UL STATUS
POWER
EH STATUS
DL STATUS
UL STATUS
POWER
EH STATUS
DL STATUS
UL STATUS
POWER
EH STATUS
DL STATUS
UL STATUS
POWER
EH STATUS
DL STATUS
UL STATUS
POWER
EH STATUS
DL STATUS
UL STATUS