The extra 40 lines are all tied to ground. The cable was constructed from 10 pieces of Cat5e with one line from each twisted pair going to ground. The construction is as tedious as it sounds and ...

Category 5 cables (or more commonly referred to as Cat 5 cables) are a specific standard of ethernet cable. There are also Cat 5e, Cat 6, Cat 7, and Cat 8 cables to choose from. The main ...