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Fiber Optic Cable Types

Multimode Fiber – The multimode fiber has a wide core that allows it to carry multiple streams of data simultaneously at wavelengths of 850nm or 1300nm. Multimode fiber uses LED as its light source and it is used to carry high volumes of data over shorter distances.

Singlemode Fiber – Singlemode Fiber has a much smaller core and one single light path that can travel further. Singlemode is usually used for longer distances, such as cable TV transmissions and campus data networks.

Simplex & Duplex Cables

Simplex – Simplex fiber cables use a single strand of glass or plastic fiber. Typically simplex fiber is used where only a single transmit or receive line is required between devices, or when a multiplex data single is used.

Duplex – Duplex fiber cables are made up of two strands of glass or plastic fiber. Usually, they are found in a “zip cord” construction format; this cable is typically used for duplex communication between devices using a separate transmit and receive.

Other Types of Fiber Optic Cable

Active Optical Cables – These are fiber optic cables with transceivers permanently bonded to each end. This eliminates the need for connectors. Active optical cables are usually found in top-of-rack applications where there are short link distances.

Multi-strand Fiber – Similar to duplex fiber, they have multiple strands of fiber carrying data in the same direction. This type of fiber is designed to support data rates of about 25G and uses an MPO connector.

Loopback Cables – A loopback cable is used to test signal transmissions and identify any issues. It’s a simple and effective way to test the transmission capability and receiver sensitivity of network equipment.



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