Paradyne 3151, Operator'S Manual

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Glossary
GL-6
March 2001 3150-A2-GB24-10
LOF Loss of Frame. Occurs when a DS1 terminal is unable to synchronize on the DS1 signal for
some interval.
LOFC Loss Of Frame Count. The number of LOFs declared.
loopback test A test that verifies a device’s operation by connecting the device’s output to the device’s
input.
LOS
Loss of Signal. The T1 line condition where there are no pulses.
Lpbk branch Local Loopback branch of the CSU menu tree.
LQR Link Quality Reports.
MAC address Media Access Control address. The unique fixed address of a piece of hardware, normally
set at the time of manufacture, and used in LAN protocols.
MB
Megabyte or megabytes. A unit of memory measurement equal to approximately one
million bytes (typically 1,048,576 bytes).
Mbps
Megabits per second. One megabit is 1,048,576 (1024
2
) bits.
menu tree
The structure containing the menu hierarchy starting at a Top-Level menu and extending
down to various device functions.
MIB Management Information Base. A database of managed objects used by SNMP to provide
network management information and device control.
MIB II
MIB Release 2. The current Internet-standard MIB, defined by RFC 1213.
module A compact assembly functioning as a component in a larger system or unit.
MRU Maximum Request Unit.
network
A configuration of data processing devices used for information exchange.
network interface
The T1 network interface connector on the rear panel of the CSU.
NMS Network Management System. A computer system used for monitoring and controlling
network devices.
node A connection or switching point on the network.
object (SNMP)
A specific item within a Management Information Base (MIB).
OOF Out Of Frame. An error condition in which frame synchronization bits are in error.
option A hardware or software function that can be selected or enabled as part of a configuration
process.
PAP
Password Authentication Protocol. A security technique that requires a user password for
access to a system.
parity A way of checking data accuracy by counting the number of bits that have a value of one.
payload
The information bits in a frame.
PBX
Private Branch Exchange. Telephone switching equipment dedicated to one customer. A
PBX connects private telephones to each other and to the public dial network.
PC Personal Computer.
PDU Protocol Data Unit. A message containing protocol-specific information.
PDV
Pulse Density Violation. The number of ones (marks, pulses) is not adequate for the line
requirement.