User's Manual Part 2

4-4 LGCell Installation
Underwriters Laboratory Installation Guidelines
Use the following guidelines when rack mounting the LGC C
ell
:
1
Do not exceed the maximum ambient air temperature of 45° C during
operation. Provide sufficient airflow and cooling within the rack to prevent
heat build-up from exceeding this limit.
2
Be careful when servicing these products. If you are removing the system from
the rack, turn it off and remove the power cord first. There are no user
serviceable parts inside the hubs or RAUs.
3
Do not compromise the amount of airflow required for safe operation of the
equipment when installing it in a rack. Both the Main Hub and the Expansion
Hub draw in air on the left side and exhaust heated air at the rear. The hubs
pass approximately 6 cu. ft. of air per minute through themselves and only
dissipate a maximum of 25 watts of heat from their internal circuitry.
4
The AC input current consumption of the hubs is rated at 1.6 A at 110 VAC.
The internal power supply has internal fuses that are not user replaceable.
Consider the worst-case power consumption shown on the product labels when
provisioning the rack’s AC power source and distribution.
Fiber Port Safety Precautions
Suggested safety precautions for working with LG
Cell
Fiber Ports follow. For
information about LG
Cell
compliance with safety standards, see
Appendix C –
Compliance Information
.
•
Viewing fiber:
Observe the following warning about viewing fiber ends and
ports.
Do not stare with unprotected eyes at the connector ends of the fibers or
the ports of the hubs. Invisible infrared radiation is present at the front
panel of the Main Hub and Expansion Hub. Do not remove the Fiber
Port dust cover unless the port is in use. Do not stare directly into a Fiber
Port.
•
Test fiber cables:
When you use test fiber optical cables, connect the optical
power source last and disconnect it first.
•
Fiber ends:
Cover any unconnected fiber ends with an approved cap. Do not
use tape.
•
Broken fiber cables:
Do not stare with unprotected eyes at any broken ends of
the fibers. Report any broken fiber cables and have them replaced.
•
Cleaning:
Use only approved methods for cleaning optical fiber connectors.
•
Modifications:
Do not make any unauthorized modifications to this fiber
optical system or associated equipment.