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Glossary
remote configuration
A feature designed into ADTRAN DSU/CSU products that allow remote DSU/
CSU to be configured from a local DSU/CSU or VT100 compatible terminal.
router
A device that supports LAN-to-LAN communications. Routers may be
equipped to provide frame relay support to the LAN devices they serve. A
frame-relay-capable router encapsulates LAN frames in a frame relay frames and
feeds those frame relay frames to a frame relay switch for transmission across
the network. A frame-relay-capable router also receives frame relay frames from
the network, strips the frame relay frame off each frame to produce the original
LAN frame, and passes the LAN frame on to the end device. Routers connect
multiple LAN segments to each other or to a WAN. Routers route traffic on the
Level 3 LAN protocol (e.g., the internet protocol address). See also bridge.
service
The provision of telecommunications to customers by a common carrier,
administration, or private operating agency, using voice, data, and/or video
technologies.
SNMP
Simple Network Management Protocol. A control and reporting scheme widely
used to manage devices from different vendors. SNMP operates on top of the
Internet protocol.
SR
Data set ready. A signal on the EIA-232 interface that indicates if the
communications is connected and ready to start handshaking control signals so
communications can begin.
statistical multiplexing
Interleaving the data input of two or more devices on a single channel or access
line for transmission through a frame relay network. Interleaving of data is
accomplished using the DLCI.
switched network
The network of dial-up telephone lines using circuit switching to provide
communications services to network users.
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FSU User Manual
61200.130L1-1
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