Table of Contents
Advertisement
Figure 25 SFP+ transceiver module
Fiber cable overview
You can use an optical fiber to connect a fiber Ethernet port or 10 Gbps Ethernet port. In addition, an
optical fiber can connect fiber ports on interface modules.
Optical fibers feature low loss and long transmission distance.
Optical fibers can be classified into single mode fibers and multi-mode fibers. A single mode fiber
carries only a single ray of light; a multi-mode fiber carries multiple modes of lights.
Table 10 Characteristics of single mode and multi-mode optical fibers
Item
Core
Dispersion
Light source and transmission
distance
Table 11 Allowed maximum tensile force and crush load
Period of force
Short period
Long term
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. There are multiple types of fiber connectors.
26
shows an LC connector.
Figure 26 Appearance of an LC connector
Single mode fiber
Small core (10 micrometers or
less)
Less dispersion
Users lasers as the light source
often within campus backbones
for distance of several thousand
meters
Tensile load (N)
150
80
22
Multi-mode fiber
Larger core than single mode fiber
(50 micrometers, 62.5
micrometers or greater)
Allows greater dispersion and
therefore, signal loss exists.
Uses LEDs as the light source
often within LANs or distances of
a couple hundred meters within a
campus network
Crush load (N/mm)
500
100
Figure
Advertisement
Table of Contents
