This specification covers Terminal Junction System (TJS) components which are used for interconnection of wiring and incorporation of passive components (see 6.1). These environment resistant components have in common the use of crimp type external pin contacts in accordance with AS39029/1 for Series I or crimp type external socket contacts in accordance with AS39029/22 for Series II. This family of TJS components is designed to operate continuously over a temperature range of -65 °C to 200 °C, using any combination of temperatures generated by the electrical load and ambient temperature so that the maximum internal hot spot, combined temperature, will not exceed the maximum specified for the class of TJS component, unless otherwise specified (1.2, 3.1). The components making up the system and covered by this specification include:

1. a Terminal junction bussing blocks (6.8.2)
   1. (1) Feedback type (6.8.2.1)
   2. (2) Feedthrough type (6.8.2.2)
2. b Racks (mounting holders) for blocks (6.8.3)
3. c Brackets, block mounting (6.8.4)
4. d Wire in-line junctions (6.8.5)
5. e Grounding terminal (6.8.6)
6. f Grounding blocks (6.8.7)
7. g Electronic blocks (6.8.8)
8. h Electronic in-line junctions (6.8.9)