Midas are standardising the use of Ethercon cables used for AES50 connections and state that customers must use Shielded Twisted Pair (STP) cable only with shielded RJ45 plugs and Ethercon shells.
STP cable has the added advantage of a foil or braided shield that guards the cable against electromagnetic interference. A good foil or braided shield and correctly connected shielded plugs and shells also helps protect against Electrostatic discharge (ESD) that can be the cause of dropouts on AES50 connections.
Occasionally shielded Ethercon cables will leave the shield disconnected on one end to help with ground loops, even though it has no benefit for AES50 connections. These connections should have continuity of the shield on both ends including the Ethercon shells. This will ensure the best possible protection against strong ESD impacts, such as handling discharges or even lightning strikes in the neighbourhood.