Plasma junction
A plasma junction or EPS junction was a component of the electro-plasma system on 22nd century . It was a major flaw in the ship's design, as it was exposed along the nape of the ship's neck and primary hull, vulnerable to enemy fire.

It was also found on  vessels used to tie the electro-plasma system into vital bridge stations. In 2154, Captain Hernandez mentioned to Jonathan Archer that  had their science and communications stations linked into the ship's EPS junction, thereby maximizing their effectiveness. ()

Also in 2154, a stolen Bird-of-Prey under the control of renegade Augments had its entire power grid disabled by a single phase cannon fired by . ()

Spacecraft components