Paradyne HotWire 7974 User Manual page 159

frame relay
FTP
G.703
G.704
HDB3
HDSL
IP
IP address
LAN
LED
LIU
LLB
loopback loopback
LOS
LTU
MCC
M/HDSL
MIB
MIB II
M/SDSL
MTSO
NMS
NTU
OOF
PPP
7970-A2-GB20-00
A high-speed connection-oriented packet switching WAN protocol using variable-length
frames.
File Transfer Protocol. A TCP/IP standard protocol that allows a user on one host to
access and transfer files to and from another host over a network, provided that the client
supplies a login identifier and password to the server.
An ITU recommendation for the physical and logical characteristics of hierarchical digital
devices.
An ITU recommendation for synchronous frame structures.
High Density Bipolar Three Zeros Substitution. A line coding technique used to
accommodate the ones density requirements of E1 lines.
High-bit-rate Digital Subscriber Line. A technique for high bandwidth, bidirectional
transmission over copper wire for T1 and E1 services.
Internet Protocol. An open networking protocol used for internet packet delivery.
Internet Protocol address. The address assigned to an internet host.
Local Area Network. A privately owned and administered data communications network
limited to a small geographic area.
Light Emitting Diode. A light or status indicator that glows in response to the presence of a
certain condition (e.g., an alarm).
Line Interface Unit. A physical layer data transmitter and receiver.
Line LoopBack. A test in which the received signal on the network interface is looped back
to the network without change.
A diagnostic procedure that sends a test message back to its origination point. Used to
test various portions of a data link in order to isolate an equipment or data line problem.
Loss of Signal. The line condition where there are no pulses.
Line Termination Unit. The control unit on the network end of a link. (The NTU is on the
customer premises end.)
Management Communications Controller. The DSLAM circuit card used to configure and
monitor the DSLAM.
Multirate High-bit-rate Digital Subscriber Line. (See HDSL.)
Management Information Base. A database of managed objects used by SNMP to provide
network management information and device control.
MIB Release 2. The current Internet-standard MIB, defined by RFC 1213.
Multirate Symmetric Digital Subscriber Line. (See SDSL.)
Mobile Telephone Switching Office. A generic name for the main cellular switching center
which supports multiple base stations.
Network Management System. A computer system used for monitoring and controlling
network devices.
Network Termination Unit. The unit on the customer premises end of a link. (The LTU is on
the network end.)
Out Of Frame. An error condition in which frame synchronization bits are in error.
Point-to-Point Protocol. A protocol for packet transmission over serial links, specified by
Internet RFC 1661.
August 1999
Glossary
GL-3