| Term | Definition |
|---|---|
| 4/8 indent crimp | A military-approved crimp used on screw-machined pin and socket contacts, such as in AMPLIMITE* connectors. The crimp consists of either one or two rows of indents equally spaced around the wire barrel of the contact. |
| 4B/5B encoding | A signal modulation scheme in which groups of four bits are encoded and transmitted in five bits in order to guarantee that no more than three consecutive zeroes ever occur; used in FDDI. |