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The ST Connector
Which uses a bayonet locking system is the
most common connector.
The SC Connector
Has a molded body and a push-pull system.
The LC Connector
Is a small-form-factor connector, features a
ceramic ferrule and looks like a mini SC con-
nector.
The FC Connector
Is a threaded connector used in high-vibration
environments.
The MT-RJ Connector
Is a small-form RJ-style connector, features
a molded body and uses a cleave-and-leave
splicing.
The MTO Connector
Is a connector that uses high-fiber-count
ribbon cable. Used in high-density fiber
applications.
The MU Connector
Resembles the larger SC connector, but it’s
much smaller. It uses the simple push-pull
latching connection. Used in high-density
fiber applications.
Types of Fiber Connectors
Fiber Optic Cable Construction
Fiber
Coating:
900 μM plastic, coats and
protects the ber.
Strengthening bers:
Aramid yarn (Kevlar)
Jacket: Usually constructed of
extruded PVC. Protects ber,
allows easy handling.
125
62.5
125
50
125
9
Core Cladding
Buer Coating
(diameters vary)
For use in general
data and voice ber
applications
Used in LANs and over
short distances
For use in new
construction and
installations
Provides more bandwidth
than 62.5/125 at 850 nm
wavelengths
50 times more distance than
multimode
Used in long-haul network
connections
Multimode
Multimode
Singlemode
Fiber Type Wavelength Attenuation
(dB/km) Max.
Bandwidth
(MHz/km)
Multimode
50-/125-Micron 850 nm 3.5 500
1300 nm 1.5 500
62.5-/125-Micron 850 nm 3.5 160
1300 nm 1.5 500
Singlemode
Premises 1310 nm 1.0 —
1550 nm 1.0 —
Outside Plant 1310 nm 0.5 —
1550 nm 0.5 —
Fiber Performance Standards
Multimode vs. Singlemode
Total Internal Reflection
The MTP Connector
Is a connector that uses high-fiber-count
ribbon cable. Used in high-density fiber
applications.
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