Glossary

NumbersC

100VG-AnyLANRefers to the 100Mbit/s network technology over voice grade cable that is compatible with the IEEE 802.12 standard. This technology guarantees access to any end node that request to transmit, which ensuring priority access to end nodes that require consistent, continuous access for application such as full-motion video or video conferencing. See also: Demand Priority Protocol.

A

adapter An add-on computer interface card and circuitry that provides the physical connection and data translation between the host computers’s I/O bus and external devices or networks.

adapter slot The location where adapters attach to the backplane.

B

backplane For an I/O bus. The computer’s circuitry and connectors to which adapter cards connect.

CAT Category A cable quality rating. 100VG-AnyLAN supports CAT-3 or 5 UTP cable. See LAN cable.

collision The result of two or more nodes on an 802.3 network transmitting at the same time, producing a garbled transmission.

D

Demand Priority Protocol A request-based protocol that is deterministic—a network end node connected to a 100VG hub makes a request (or “demand”) to transmit, and then can transmit only when authorized by the hub. Under hub control, the Demand Priority Protocol guarantees network access for any end node that requests to transmit data.

driver A portion of system code that allows communication between the operating system and the network card.

E

Ethernet A LAN that uses the CSMA/CD method of access and transmits at 10Mbit/s on a bus or

Glossary

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