Sometimes, when there are problems in the field, it’s just bad cable. We’re talking about cable that is bad, off the spool before the installer has even had a chance to touch it. This is not a common occurrence, but it’s something we’re prepared for and you should be, too. The vast majority of the time, it’s because someone cut corners and went for the budget special from some unknown manufacturer, but even reputable manufacturers have slipped up. Here’s an example that came into out Technical Assistance Center (TAC) just last month.

Sourced through Scoop.it from: www.flukenetworks.com