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20614 Cisco Installing and Maintaining Routers Part 4: 12000 GSR Series and XS5032 Modules
data terminal equipment. Device at the user end of a user−network interface that serves as a data source,
destination, or both. DTE connects to a data network through a DCE device (for example, a modem) and
typically uses clocking signals generated by the DCE. DTE includes such devices as computers, protocol
translators, and multiplexers.
10BaseT
10−Mbps baseband Ethernet specification using two pairs of twisted−pair cabling (Category 3, 4, or 5): one
pair for transmitting data and the other for receiving data. 10BaseT, which is part of the IEEE 802.3
specification, has a distance limit of approximately 328 feet (100 meters) per segment.
ASIC
Application Specific Integrated Circuit, a chip designed for a particular application. ASICs are built by
connecting existing circuit building blocks in new ways
ATM
Asynchronous Transfer Mode. International standard for cell relay in which multiple service types (such as
voice, video, or data) are conveyed in fixed−length (53−byte) cells. Fixed−length cells allow cell processing
to occur in hardware, thereby reducing transit delays. ATM is designed to take advantage of high−speed
transmission media such as E3, SONET, and T3.
Attachment Unit Interface (AUI)
attachment unit interface. IEEE 802.3 interface between an MAU and a NIC. The term AUI can also refer to
the rear panel port to which an AUI cable might attach. Also called transceiver cable.
AUI
Attachment Unit Interface
AWG
American Wire Gauge
Basic Rate Interface (BRI)
Basic Rate Interface. ISDN interface composed of two B channels and one D channel for circuit−switched
communication of voice, video, and data.
BNC
BNC coonector. Standard connector used to connect IEEE 802.3 10Base2 coaxial cable to an MAU.
BRI
Basic Rate Interface
BTU
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