Fiber Optic Connector Guide

Whether you are installing a brand new fiber optic network or repairing a legacy system using this fiber optic connector guide will help you determine what kind of connector you are looking at or what type of connector you need to replace.

The List below is a great tool for identifying fiber optic connectors. Use it for reference and even to help you choose the what connectors you should use on your next fiber optic project.

ST Connector	The ST connector utilizes a bayonet twist-lock connection with 2.5mm ferrule. Available in singlemode and multimode, the ST connector features reliable and durable field installation.The design of the FIS ST connector enables installers to crimp the back of the body directly onto the cable jacket and Kevlar®.
FC Connector	FC connectors are specifically designed for telecommunication applications and provide non-optical disconnect performance. Designed with a threaded coupling for durable connections. The ferrule is PC finished to a pre-radius, which ensures low back reflection. The FIS FC connector is available with zirconia or stainless alloy ferrules.
LC Connector	The LC connector licensed by Lucent Technologies provides a pull-proof design and small size perfect for high-density applications. Available in simplex or duplex versions. The LC connector is provided with a 1.25mm zirconia ferrule. The LC also incorporates a unique latching mechanism providing stability in system rack mounts.
SC Connector	The SC is a non-optical disconnect connector with a 2.5mm pre-radiused zirconia ferrule. Available in simplex and duplex styles, this connector features a push-pull connection design for quick patching of cables into rack or wall mounts. Utilize the reusable duplex holding clip to create duplex connections.
D4 Connector	The FIS non-optical disconnect D4 connector features threaded parts that reduce complexity and assembly time.
MTP Connector	The US CONEC® MTP® is a MPO compatible connector that provides quick and reliable connection for up to 12 fibers. Available in singlemode with a typical loss of 0.25dB and multimode with a loss of 0.20dB. Four and eight fiber MTP® connectors are available. Singlemode ferrules are designed to be polished to an 8º angle.
MT-RJ Connector	The MT-RJ multimode duplex connector provides increased port density two times that of a duplex SC. The single plastic ferrule houses two fibers utilizing a user-friendly RJ-45 connection system. The same size as a simplex SC connector, the MT-RJ is designed for backbone and horizontal cabling systems, local area networks and telecommunication systems.
MU Connector	The MU connector is designed for high-density connections. This small single-fiber connector has a high level of performance, providing more than double the packaging density of the SC connector
Escon Connector	Escon describes a duplex connector using a free-floating ferrule structure and a positive latching mechanism. Uses standard ST polish disc and a special two-die crimper. Escon is a registered trademark of IBM Corporation.
FDDI Connector	For your multimode FDDI connector requirements choose from a selection of AMP and Molex connectors. AMP FDDI connectors combine low loss with positive side latch mating, polarization, keying and fiber strain relief. All connectors have zirconia ferrules.
Biconic Connector	The Biconic connector with a polymer ferrule provides top performance for multimode and singlemode applications. Call for Availability.
SMA Connector	The SMA 905 and 906 multimode connectors are available with stainless alloy or stainless steel ferrules. The FIS stainless alloy ferrule may be drilled from 240μm up to 1550μm to accept various fiber sizes. When installing 906 SMA’s into 905 SMA mating sleeves, a provided 1/2 sleeve must be installed on the 906 ferrule.