User's Manual Part 2

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D-620610-0-20 Rev A CONFIDENTIAL
Fusion Installation Procedures
2. Main Hub
power is
On with
Expansion
Hubs con-
nected and
powered
on.
PORT
Off • If the port LEDs do not illuminate, check the fiber
uplink for excessive optical loss.
• If Expansion Hub’s DL STATUS LED is red:
• Verify that the fiber is connected to the correct
port (that is, uplink/downlink)
• Swap the uplink and downlink cables.
• Connect the fiber pair to another port. If the sec-
ond port’s LEDs do not illuminate Green/Red,
replace the Main Hub.
• If the second port works, flag the first port as
unusable; replace the Main Hub when possible.
No uplink optical
power, the Expansion
Hub is not recognized
as being present.
No communication
with the Expansion
Hub.
PORT
Red (60 ppm) • If the Expansion Hub DL STATUS LED is red,
check the downlink fiber cable for excessive opti-
cal loss.
• Connect the fiber pair to another port. If the sec-
ond port’s LEDs do not illuminate Green/Red,
replace the Main Hub.
• If the second port works, flag the first port as
unusable; replace the Main Hub when possible.
No communication
with the Expansion
Hub.
PORT
Red The Expansion Hub or connected RAU reports a fault
Use AdminManager to determine the problem.
The Expansion Hub or
one or more RAUs are
off-line.
Table 7-5 Troubleshooting Main Hub LEDs During Installation (continued)
During
Installation
Power On LED State Action Impact