CSX200 Family User’s Guide 237D Glossary10BASE-T — IEEE 802.3 standard for the use of Ethernet LAN technology over UnshieldedTwisted Pair wiring, running at 10 Mbps.ARP — Address Resolution Protocol. An Internet protocol used to bind an IP address to Ethernet/802.3 addresses.ASCII — American Standard Code for Information Interchange. It is an 8-bit code for characterrepresentation.AUI — Attachment Unit Interface. An IEEE 802.3 transceiver cable connecting the networkdevice (such as a router) to the MAU (media access unit).Bandwidth on Demand — Feature providing the capability of adjusting the bandwidth (openingor closing multiple B channels) when the load in traffic increases or decreases.Bridge — A device that segments network traffic. A bridge maintains a list of each node on thesegment and only traffic destined for a node on the adjacent segment is passed across the bridge. Abridge operates at Layer 2 of the OSI reference model.B Channel — In ISDN, a full-duplex, 64 Kbps channel used for sending user data.BRI — Basic Rate Interface. The ISDN interface providing two 64 Kbps B channels for voice,data and video transmission and one 16 Kbps D channel for signaling and data transmission.CHAP — Challenge Handshake Authentication Protocol. A security protocol supported underpoint-to-point protocol (PPP) used to prevent unauthorized access to devices and remote networks.Uses encryption of password, device names and random number generation.DCE — Data Communications Equipment. Equipment used within a network to transfer datafrom source to destination such as modems.D Channel — In ISDN, a full-duplex 16 Kbps channel used for link setup.Data Compression — Techniques used to reduce the number of bits transferred across thecommunication links that represent the actual data bits. Compression is used to optimize use ofWAN links and speed data transmission.