Paradyne ACCULINK 317x E1 - Manual (Page 159)

ACCULINK 317x E1 DSU/CSU
Glossary-6 December 1996 3170-A2-GB20-20
Lpbk branch Local Loopback branch of the E1 DSU/CSU menu tree.
LQR Link Quality Reports.
manager (SNMP) The device that queries agents for management information, or receives unsolicited
messages (traps) indicating the occurrence of specific events.
MB Megabytes. A unit of memory measurement equal to approximately one million
bytes (typically 1,048,576 bytes).
Mbps Megabits per second (million bits per second).
menu tree A display of E1 DSU/CSU functions that are accessed by selecting various
branches (Status, Test, etc.).
MIB Management Information Base. A database of managed objects used by SNMP to
provide network management information.
MIB II MIB Release 2. The current Internet-standard MIB.
MRU Maximum Request Unit.
mobile switching center A facility that provides overall control for a wireless communication system. Cell
sites are linked to the public telephone network through a mobile switching center.
network A configuration of data processing devices for information exchange.
NETWORK interface The network interface connectors on the rear panel of the E1 DSU/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.
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
network.
PC Personal computer. In this document, references to a PC imply an IBM PC or an
IBM-compatible PC.
PDU Protocol Data Unit. Used when adding routes in the Internet.
PDV Pulse Density Violation. The number of “ones” (marks, pulses) is not adequate for
the line requirement.
Perf branch Performance Report branch of the E1 DSU/CSU menu tree.
PLB Payload Loopback. Loops the received signal on the network interface back to the
network after it has passed through the framing circuity of the E1 DSU/CSU.
port An access point for data entry or exit.
PORT (1– 4) interface The synchronous data port interface on the E1 DSU/CSU.
POWER connector The power input connector on the E1 DSU/CSU.