Black Box SCAN-LAN VI, Manual

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SCAN-LAN VI
Jack — EIA-standard modular connector for connecting twisted-pair cables
at a wall plate or patch panel.
Jacket — The outside protective covering of a cable.
Jitter — The time-based variation of the received data bits.
Jumper Cable — Short cable for interconnecting connecting blocks or
patch panels. Also called patch cord or patch cable.
LAN (Local Area Network) — A data-communication network that
provides high-speed communication in a moderate-size geographic area.
Link — The communications medium connecting office equipment to the
hub or concentrator in the wiring closet.
Link Pulse — A single-bit test pulse transmitted periodically between hubs
and workstations on 10BASE-T segments to verify integrity.
Lobe — The cable segments that connect a device to the Multi-Station
Access Unit (MSAU) for Token Ring.
MAC (Medium Access Control) — The method of determining how
stations access the medium at any time.
MAC Address — A unique identification number assigned to each station
connected to a network. Sometimes called Station Address.
Main Cross-Connects — The connections between external
telecommunications lines, interbuilding backbone cable, common
communications equipment (PBX), and internal backbone cable. Also
called Main Distribution Frame.
Main Distribution Frame (MDF) — See Main Cross-Connects .
Medium — The physical carrier of the data being transmitted (for example
twisted-pair cable, coaxial cable, or fiber).
Medium Attachment Unit (MAU) — Device used in Ethernet networks to
couple a station or hub to the transmission medium.
Modular Jack — EIA-standard receptacle connector used for connecting
twisted-pair cables at a wall plate, patch panels, and station equipment.
Sometimes called RJ-45 jack.