Instruction Manual

Help Hot Line (U.S. only): 1-800-530-9960 4-7
D-620TBD-0-20 Rev H CONFIDENTIAL
Expansion Hub Front Panel
RJ-45 Port LEDs
The Expansion Hub has a port LED, labeled PORT, for each of the eight 75 Ohm,
Type F ports. The port LEDs can be in one of the states shown in Table 4-2. These
LEDs can be:
off
steady green
flashing red (60 pulses per minute [PPM])
Green / Red
Red / Red
• Optical power in 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 out 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 4-2 Fusion Expansion Hub Port LED States
LED State Indicates
Off • The RAU is not connected.
Green
• The RAU is connected.
• No faults from the RAU.
Red
(60 PPM)
• The RAU was disconnected.
• The RAU is not communicating.
• The RAU port power is tripped.
Red
(Steady)
• The RAU is disconnected.
• The RAU is reporting a fault or lockout condition.
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
PORT
PORT
PORT
PORT