How to Select a Right Fiber Optic Patch Cables for Optical Transceiver Modules

The large demand of bandwidth and datacommunication from enterprise and data center networks brings a rapid-growingdevelopment of telecommunication technologies including the fiber optic patch cablesand the optical transceiver modules. The optical transceiver module hasdeveloped from low speed like 155Mor 1.25G optical transceivers, 10Goptical modules, 25G and 40G opticaltransceiver and 100G optical transceivermodules, and move forward to higher-speed 200G or even 400G optical modules.On the other hand, the patch cables improve as well and now are categorizedinto three types that we will introduce in the following patch cable overview.

Patch Cable Overview

A patch cable, or called patch cord orpatch lead, is an electrical or optical cable used to connect("patch-in") one electronic or optical device to another for signalrouting. Patch cable are used to connect different types of devices, e.g., aswitch connected to a computer, or a switch to a router. Patch cables areusually produced in many different colors so as to be easily distinguishable.Copper cable, direct attach cable (short as DAC) and fiber optic patch cableare three types of the patch cable using for data communication and networkingfor different periods and use. Copper cable has been used in electric wiring,like power generation, power transmission, power distribution,telecommunications, electronics circuitry, and countless types of electricalequipment, since the invention of the electromagnet and the telegraph in the1820s. And then is the DAC,which is used to connect one mobility access switch with another when forming astack which is widely applied in storage, data, and high-performance computingconnectivity. Now is the fiber optic patch cable, which is the most efficient with lowest consumption and cost for data transmission and communication.

Fiber Optic Patch Cable Overview

Fiber Optic Patch Cable, also known asfiber jumper or fiber optic patch cord, can be capped at either end withconnectors and rapidly and conveniently connected to CATV, an optical switch orother telecommunication equipment. The fiber optic patch cable’s thick layer ofprotection is used to connect the optical transmitter, receiver, and theterminal box.

Fiber optic patch cable is widely used intoday’s enterprise and data center networks for its excellent characters: lowinsertion loss, high return loss, good repeatability, good interchange and top-notchenvironment adaptability. According to transmission medium, cable structure orconnector types etc., fiber optic patch cable can be divided into differenttypes.

Fiberoptic patch cable transmission medium: SMF vs MMF.Based on the transmission medium, the fiber optic patch cable has two kinds:one is single-modefiber and the other is multi-mode fiber. Single-mode fiber is generallyyellow, with a blue connector, and a longer transmission distance. Multi-modefiber is generally orange or grey, with a cream or black connector, and ashorter transmission distance.

Fiberoptic patch cable structure: Simplex vs Duplex. Asimplex fiber cable consists of a single strand of glass of plastic fiber.Simplex fiber is most often used where only a single transmit and/or receiveline is required between devices or when a multiplex data signal is used(bi-directional communication over a single fiber). A duplex fiber cableconsists of two strands of glass or plastic fiber. Typically found in a“zipcord” construction format, this cable is most often used for duplexcommunication between devices where a separate transmit and receive arerequired.

Fiberoptic patch cable connectors: LC, SC, ST, FC, MT-RJ and more. Different fiber optic patch cables can be named with theirconnectors, like LC fiber optic patch cable is named for its LC connector,there are FC, SC, ST, MTRJ, MTP/MPO, MU, SMA, FDDI, E2000, DIN4, and D4 fiber opticpatch cables.

How to Select a Right Fiber Optic PatchCables for Optical Transceiver Modules?

For different optical transceiver modules,different fiber optic patch cables are needed. Let’s take DataComm 10G optical transceivers for example.10G SFP+ SR opticaltransceiver is designed to transmit and receive optical data over MMF with850nm wavelength and LC duplex connector, the other 10GBASE-SR X2 opticaltransceiver can also transmit and receive optical data over MMF with 850nmwavelength, but it requires a SC duplex connector, how to connect these twooptical transceiver modules with what kind of fiber optic patch cable? It iseasy to figure out that a fiber optic patch cable with SC-LC connector withMMF, 850nm wavelength can be used for connecting the 10GBASE-SR SFP+ opticaltransceiver and the 10GBASE-SR X2 optical transceiver. In the same way, you canselect a right fiber optic patch cable for the other optical transceivermodules if you have their specifications, of which their connectors are theimportant factors.

As an excellent Chinese supplier for optical transceivers and components, DataComm is going to release a series offiber patch cables soon in the near future, and if you’re interested, please contact us at for inquiry or get a quote.

7/1/2016 3:13:25 AM

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As a leading optical transceiver module provider, DataComm offers both excellent high-quality products and servies to global customers over the world. And you can contact us for inquiry and quote as below ways.
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