User's Manual Part 1

Expansion Hub Overview
InterReach Fusion Wideband Installation, Operation, and Reference Manual Page 47
D-620616-0-20 Rev H • TECP-77-044 Issue 7 • May 2013 © 2013 TE Connectivity Ltd.
Green/Green
Red/Red
• 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.
Green/Red
Red/Red
• Optical power received is below minimum (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.)
• 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33. ExpansionHubUnitStatusandDL/ULStatusLEDStates(Cont.)
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