Specifies the particular characteristics of a TJS designated as type 2 and intended for use at temperatures from - 55 °C to + 155 °C. The junction system comprises feedback modules in four sizes; feedthrough modules in four sizes; frames adapted to these modules: monolithic frame and double frame for feedback modules and double frame for feedthrough modules; spacers; removable male crimp contacts of sizes 22, 20, 16 and 12; sealing plugs.