H3C Technologies H3C SecPath F1000-E User Manual
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Table 46 Allowed maximum tensile force and crush load
Period of force
Tensile load (N)
Crush load (N/mm)
Short period
150
500
Long term
80
100
Fiber connectors are indispensable passive components in an optical fiber communication system. They
allow the removable connection between optical channels, which makes the optical system debugging
and maintenance more convenient and the transit dispatching of the system more flexible. The UTM
device supports only the LC connector.
Figure 67 LC connector
Follow these guidelines when you use an optical fiber:
•
Make sure the fiber connector and fiber type match the transceiver module type.
•
The optical interfaces on some cards have shielded covers. Remove the shielded covers before
using the optical interfaces. Optical interfaces must be installed with shielded covers when they
are not in use. Keep them safely.
•
Fiber connectors must be protected under safe and reliable outer packing, and be fitted with dust
caps. Fiber connectors must be installed with dust caps when they are not in use. Take care not to
scratch their end face. Replace the dust cap if it is loose or polluted.
•
Before connecting a fiber, use dust free paper and absolute alcohol to clean the end face of the
fiber connector. You can brush the end face only in one direction. You also need to brush the end
face of the fiber port.
•
Never bend or curve a fiber when connecting it. After a fiber is installed well, the bend radius must
be not less than 10 cm (3.94 in).
•
If the fiber has to pass through a metallic board hole, the hole must have a sleek and fully filleted
surface (the filleting radius must be not less than 2 mm, or 0.08 in). When passing through a
metallic board hole or bending along the acute side of mechanical parts, the fiber must wear
jackets or cushions.
•
Insert and remove a plug with care. Never exert a fierce force to the fiber or plug; otherwise the
plug may be damaged or the fiber may be broken. Never pull, press or extrude the fiber fiercely.
For the allowed maximum tensile load and crush load, see