User's Manual

4-4 InterReach Unison Installation, Operation, and Reference Manual PN 8700-10
620003-0 Rev. B
Unit Status and DL/UL Status LEDs
The Expansion Hub unit status and DL/UL status LEDs can be in one of the states
shown in Table 4-1. These LEDs can be:
steady green
steady red
There is no off state when the unit’s power is on.
Table 4-1 Expansion Hub Unit Status and DL/UL Status LED States
LED State Indicates
Green / Green
Green / Green
• Expansion Hub is connected to power
• Expansion Hub is not reporting a fault or lockout condition; but the
system test may need to be performed or a warning condition could
exist (use AdminManager to determine)
• Optical power in is above minimum (Main Hub is connected)
although the cable optical loss may be greater than recommended
maximum
• Optical power out (uplink laser) is normal and communications with
the Main Hub are normal
Green / Green
Red / Green
• Optical power in is above minimum (Main Hub is connected)
although the cable optical loss may be greater than recommended
maximum
• Optical power out (uplink laser) is normal and communications with
the Main Hub are normal
• Expansion Hub is reporting a fault or commanded lockout
Green / Red
Red / Green
• Fault condition detected, optical power in is below minimum.
(Main Hub is not connected, is not powered, or Main Hub’s downlink
laser has failed, or the downlink fiber is disconnected or damaged.)
Green / Green
Red / Red
• Expansion Hub is reporting a fault condition
• Optical power in is above minimum (Main Hub is connected)
although the cable optical loss may be greater than recommended
maximum
• Optical power out 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 in is below minimum (Main Hub is not connected, is
not powered, or Main Hub’s downlink laser has failed, or the down-
link fiber is disconnected or damaged.)
• Optical power out 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, the uplink
laser has failed, replace the Expansion Hub.
Green / Red
Green / Red
• Expansion Hub is in factory test mode, return it to the factory
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS