Certification – Why? What? How?
LAN cable certifiers have been the go-to method of testing twisted pair cabling for
nearly a quarter century, since the advent of 10Base-T on Class C/category 3 cabling to
10 MHz. This article will explore why certifiers are used to test LAN cabling, what a
certifier tests, the benefits certifying cabling even when a customer does not require it,
and the differences between certifiers and other types of LAN cable testers.