User's Manual

Corning Optical Communications User Manual I CMA-066-AEN I Page 24
2.4.2 Fiber Optic Rules
ATTENTION!
Please also refer to the Laser Safety section in the document Preface.
• Fiber optic cables require proper handling. Do not stretch, puncture, or crush the fiber cable(s) with staples, heavy
equipment, doors, etc.
• Always maintain the minimum bending radius specified by the cable manufacturer. The minimum bend radius is usually
10 times the cable's outer diameter. In the case of single optical fiber that is not in a cable, the minimum bending radius
to be observed is 30 mm.
• WDM, Wave Division Multiplexing, units require SMF
• For HX Indoor models - use SC APC connectors (green color) 8 deg only.
• For HX Outdoor models – use OptiTap® connector
• Pay special attention while connecting the SC APC connectors - ensure that you hear a “click”, indicating a secure
connection
• Use minimum splicing/connectors to achieve minimum losses on the fibers.
• Use precaution while installing, bending, or connecting fiber optic cables.
• Use an optical power meter and OTDR for checking the fiber optic cables.
• Make sure the environment is clean while connecting/splicing fiber optic cables.
• All fiber optic connectors should be cleaned prior to connecting to the system
• Fiber connector protective caps should be installed on all non-terminated fibers and removed just before they are
terminated.
• Check the fiber optic connections.
• Never look directly into the end of a fiber that may be carrying laser light. Laser light can be invisible and can damage
your eyes.
2.5 RF Coaxial Cable Guidelines
2.5.1 General Cable Installation Procedures
Note: The installer should be familiar with the ANSI/TIA/EIS-568 Cabling Standard guidelines.
Observe the general cable installation procedures that meet with the building codes in your area. The building code requires
that all cabling be installed above ceiling level (where applicable). The length of cable from the risers to each antenna may
need to be concealed above the ceiling.
The cable must be properly supported and maintained straight using velcro cable ties, cable trays and clamps or hangers
every 10 feet (where practical above ceiling level). Where this is not practical, the following should be observed:
• The minimum bending radius of the supplied ½” coax cable should be 7”.
• Cable that is kinked or has a bending radius smaller than 7” must be replaced.
• Cable runs that span less than two floors should be secured to suitably located mechanical structures.
• The cables should be supported only from the building structure.
• All cables shall be weather-resistant type
.
• Cable length - determined by the system installation plan. When calculating the cable length, take into account excess
cable slack so as not to limit the insertion paths.