User's Manual

PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 7-21
620003-0 Rev. B
Powering On the Expansion Hub
1. Connect the AC power cord to the Expansion Hub.
2. Plug the power cord into an AC power outlet.
3. Turn on the power to the Expansion Hub and check that all the LED lamps are
functioning properly.
Upon power-up, the LEDs will blink for five seconds as a visual check that they
are functioning. After the five-second test:
•The
POWER and UL STATUS LEDs should be green.
– If the uplink fiber is not connected within 90 seconds after the test, the
UL STATUS LED will turn red indicating that there is no communication with
the Main Hub.
•The
E-HUB STATUS and DL STATUS LEDs should be red.
• All port LEDs should be off because no RAUs are connected yet.