Dictionary


Serial Bus Definitions
PHY Terms

"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

CABLE. An assembly of one or more insulated conductors, or optical fibers, or a combination of both, within an enveloping jacket. Either a stranded conductor (single-conductor cable) or a combination of conductors insulated from one another (multiple conductor cable). Small sizes are commonly referred to as stranded wire or as cords.

CABLE ASSEMBLY. A cable that is ready for installation in specific applications and usually terminated with connectors. Cable Assembly Manufacturers

CABLE HARNESS. A group of wires or ribbons of wiring used to interconnect electronic systems and subsystems.

CABLE SHEATH. A conductive protective covering applied to cables.

CAN BUS. A differential 2-wire interface running over either a Shielded Twisted Pair (STP), Un-shielded Twisted Pair (UTP), or Ribbon cable. A number of different Protocols are used with CAN bus. The CanBus is primarily used as an Automotive Bus, but is also one of the major Field Buses. CanBus Description

CATEGORY 3. The ANSI/EIA/TIA-568 designation for 100-ohm unshielded twisted-pair cables and associated connecting hardware whose characteristics are specified for data transmission up to 16 Mb/s. [EIA568 Bus Description]

CHARACTER. A letter, digit, or other symbol that is used as part of the organization, control, or representation of information. [ASCII Code Table]

CHECK-SUM. A number that has been calculated as a function of some message, by adding up the bytes in the message. The [message] data is summed with out regard overflow. Perhaps this was what early checksums were. Today, however, although more sophisticated formulae are used, the term "checksum" is still used and interchangeable with the term CRC.

COAXIAL CABLE. Cable in which the center conductor is separated from an outer conductor by a dielectric material; used in RF transmission. Coax, Twinax, Triax Cable Manufacturers

Coax Cable

COAXIAL LINE. A type of transmission line that contains two concentric conductors.

CODE. Code is a combination of mark and space conditions representing symbols, figures, or letters.

COEFFICIENT OF COUPLING. An expression of the extent to which two inductors are coupled by magnetic lines of force. This is expressed as a decimal or percentage of maximum possible coupling and represented by the letter K.

CompactPCI. Compact Peripheral Component Interface. An industrial version of the PCI standard [Peripheral Component Interface]. CompactPCI uses the Euro board format/size, but uses the same electrical standard as the consumer PCI interface bus. CompactPCI Bus