Introduction to fiber connector, Precautions – H3C Technologies H3C SR8800 User Manual
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Connecting the router to the network through an optical fiber
Use an optical fiber to connect an optical fiber port, for example, XFP fiber port or SFP fiber port, on the
router to the network. You must install a transceiver module to the router, and then insert the fiber
connector to the module.
Introduction to fiber connector
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. Among
various fiber connectors, only the LC connector is described here.
Figure 49 LC connector
Precautions
Follow these precautionary steps:
•
When selecting a fiber network facility, make sure the type of the connector and the fiber matches
the adopted fiber port.
•
Before connecting a fiber, make sure the optical power at the receiving end does not exceed the
upper threshold of the optical receive power of the optical module. Otherwise, the optical module
might be damaged.
•
Be sure to install the dust cover if the fiber port is not connected to a fiber connector.
•
Some invisible rays might be emitted from the fiber port if the fiber port is not connected to a fiber
connector or the dust cover is removed. Therefore, never stare at the fiber port directly.
•
Protect fiber connectors under safe and reliable outer packing, and fit them with dust caps. Install
fiber connectors 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 other fiber connector.
•
Never bend or curve a fiber when connecting it. After a fiber is installed correctly, the bend radius
must be not less than 40 mm (1.58 in) (the minimum dynamic bend radius is 20 D, and the minimum
static bend radius is 10 D. D indicates the outer diameter of fiber jackets).
•
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 might be damaged or the fiber might be broken. Never pull, press or extrude the fiber fiercely.
For the allowed maximum tensile load and crush load, see