As networks get faster, cabling to support them needs upgrading. Outside plant networks, most of which run on single-mode fiber optic cable with its almost infinite bandwidth, are rarely in need of upgrading. On the other hand, premises cabling usually needs to be upgraded.
Last month, I discussed one of the most important tools in the fiber tech’s toolbox: the fiber optic power meter. This month, let’s examine the other tool that is equally important: the test source used with the power meter to measure the loss of the cable plant.