![]() Typically, the fiber optic transceivers including 10G XENPAK, X2, XFP and SFP+ (small form-factor pluggable plus) are widely used for 10 Gigabit Ethernet. If you want to learn something about OTDR, these specifications are important for you to know:ġ0G transceiver refers to optical module which can transmit and receive the data signal of 10 gigabits per second. The strength of the return pulses is measured and integrated as a function of time, and plotted as a function of fiber length. The scattered or reflected light that is gathered back is used to characterize the optical fiber. By injecting a series of optical pulses into the fiber, the light that is scattered or reflected will be back from points along the fiber at the same end. It locates defects and faults, and determines the amount of signal loss at any point in an optical fiber. To be specific, OTDR is an optoelectronic instrument used to characterize an optical fiber. OTDR has been combined with WDM (wavelength-division multiplexing) based on the advanced optical signal processing technology and all-optical communication devices. The third stage is from the late 20th century to the early 21st century. Fiber optics detection technology has been evolved to achieve real-time monitoring of optical network. The second stage was from the late 1980s to the late 1990s. At that time, people still used the original way of fiber testing, and hand-held OTDR device or OTDR inspection technique were adopted to detect optical communication network. Optical fibers were just put into the market on a large scale. It has gone through three stages of development. OTDR is short for optical time-domain reflectometer. Since the optical fiber is a kind of dielectric which is unable to conduct electric current, active optical cable will not be affected by the electromagnetic energy. EMI is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling or conduction. It is possible for AOC cable to achieve a simpler cable management with a lower weight.Ĥ) EMI (electromagnetic interference) immunity is another benefit of active optical fiber. The maximum throughput of AOC cable is up to 40 Gbps with QSFP+.ģ) The weight of active optical cable is lighter than copper cable due to the optical fiber material. Here are some advantages of using active optical cable:ġ) Although both cables are used for short range data communication, active optical cable is able to provide a longer reach than direct attach copper cable among devices.Ģ) Active optical cable has a higher bandwidth because its signal transmits through optical fiber as optical signal which transmits faster than electrical signal in copper cable. ![]() ![]() However, people may wonder the reasons why choosing active optical cable over direct attach copper cable. ![]()
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