In our last Cable Testing 101 series, we covered the difference between OM3 and OM4 50µm multimode fiber -- primarily the fact that the fiber core of OM4 has been constructed to provide better attenuation and higher bandwidth, thereby allowing for longer link lengths.
Cable Testing 101: Mixing Multimode Fiber Types
Field testing misconceptions: Alien crosstalk, do we test or not? If so, how and what’s the process
Alien crosstalk is a relatively new measurement that’s widely misunderstood. I’m often asked why it’s an important measurement and if it’s required to be measured by the standards. Also misunderstood is the sampling criteria for alien crosstalk measurements, which are applied so that not all links have to be tested?
Cable Testing 101: What is the Difference Between OM3 and OM4?
OM3 and OM4 multimode fiber are two common types of fiber used in local area networks--typically in backbone cabling between telecommunications rooms and in the data center between main networking and storage area network (SAN) switches.