User's Manual

PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 6-15
620003-0
PRELIMINARY Installing Expansion Hubs
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 for a visual check that they
are functioning. After the five-second test:
•The
POWER and UL STATUS LEDs should be green.
•The
E-HUB STATUS and DL STATUS LEDs should be red because the Main Hub
is not yet connected.
• All port LEDs should be off because no RAUs are connected yet.
NOTE: Leave the dust caps on the fiber ports until you are ready to connect the fiber
optic cables.
Testing and Connecting the Fiber Cables
Considerations:
• Before connecting the fiber cables, confirm that their optical loss does not exceed
3 dB optical budget.
• If fiber distribution panels are used, confirm that the total optical loss of fiber
cable, from the Main Hub through distribution panels and patch cords to the
Expansion Hub, does not exceed the optical budget.
• Make sure the fiber cable’s connectors are SC/APC (angle-polished).Using any
other connector type will result in degraded system performance and may damage
the equipment.
NOTE: Observe all Fiber Port Safety Precautions listed in Section 6.2.3 on page 6-4.
To test the fiber cables:
1. Perform cable testing and record the results.
Test results are required for the final As-Built Document.
2. Make a note of which cable you will use for uplink and downlink.
This information is needed when connecting the cables to the Main Hub.