Brief Introduction to Fiber Optic Patch Cords


Fiber optic patch cord is the simplest fiber optic elements, consisting of a short length of optical fiber with a connector on either end. Since they are used to connect various components and instruments in a fiber optic system, their characteristics in terms of loss and aging determine the overall performance of the system. In principle, when two patch cords are connected, if the fibers are identical, it should result in almost zero loss. In actual practice the loss may not be very small since the fiber may not be completely concentric with the connector center, there could be dust at the tip of the connector, or there could be misalignments when two patch cords are mated. Fiber optic patch cord with different types of fibers and different connector types are available. The typical insertion loss of patch cords is about 0.4 dB, with a return loss of better than 50 dB.

We mustn’t forget the role that optical patch cords play in the practical use of an optical cable system. A patch cord is a short length of a simple optical cable, typically one to five meters, that is used to connect the active or final equipment into the cable plant, usually by way of the patch panel.

The patch cord can be of a single fiber, simplex, or two fibers, duplex. If it is duplex then the convention is to cross the circuit so that A goes to B and B to A, as seen in Figure 1.

Talk about simplex and duplex, we can recommend you some patch cord from our store.

LC-LC Duplex 10G OM4 50/125 Multimode Fiber Optic Patch Cord

lc lc fiber optic patch cord

Cost-effective solution that provides higher bandwidth and transmission rates and supports longer distances with lower loss than 62.5 fiber. Specifically designed for use with today’s narrower aperture components, this LC-LC fiber optic cable is fully compatible with multimode applications. The patented injection molding process provides each connection greater durability in resisting pulls, strains, and impacts from cabling install.

LC-SC Duplex 9/125 Single-mode Fiber Optic Patch Cord

lc sc fiber optic patch cord

● LC-SC Connectors
● Singlemode Duplex fiber optic cable
● Micron: 9/125um
● Complete with Lucent Technologies aqua jacket
● Bandwidth transmitting rates up to 10 gigabits
● All of our fiber optic patch cables feature the high degree connectors
● 100% optically tested to ensure high performance
● Color: Yellow

SC fiber cable is one of the earliest types and one of the most commonly used fiber optic cable, it is convenient to use and cost saving – It is the cheapest type fiber optic cable. SC fiber patch is widely used in fiber optic networks. SC fiber patch cable is with zirconia sleeve and plastic housing.

The patch cord must incorporate exactly the same fiber as is contained within the rest of the cable plant. There is no reason why the connectors on each end need to be the same. What is important is that one end of the patch cord matches that found on the active equipment and the other end matches the patch panel.