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4-5
D-620003-0-20 Rev J
CONFIDENTIAL
Expansion Hub Front Panel
Port LEDs
The Expansion Hub has one pair of port LEDs for each of the eight RJ-45 ports. The
port LEDs can be in one of the states shown in Table 4-2. These LEDs can be:
off
steady green
steady red
Green / Red
Green / Red
• Expansion Hub is in factory test mode, return it to the factory.
Red/ Red
Red/ Red
• One or more power supplies are out of specification. The hub needs to
be replaced.
Table 4-2
Expansion Hub Port LED States
LED State
Indicates
Off
Off
• The RAU is not connected.
Green
Green
• The RAU is connected.
• No faults from the RAU.
Red
Off
• The RAU was disconnected.
• The RAU is not communicating.
• The RAU port power is tripped.
• 36 VDC is shutdown due to an EH over-temperature condition.
Green
Red
• The RAU is connected.
• The RAU is reporting a fault or lockout condition.
Table 4-1
Expansion Hub Unit Status and DL/UL Status LED States
LED State
Indicates
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
LINK
RAU
LINK
RAU
LINK
RAU
LINK
RAU
