Specifications

IP Address
Also known as an Internet address. A unique string of numbers
that identifies a computer or device on a TCP/IP network. The
format of an IP address is a 32-bit numeric address written as four
numbers from 0 to 255, separated by periods (for example,
1.0.255.123).
Jitter
The deviation of a transmission signal in time or phase. It can
introduce errors and loss of synchronization in high speed
synchronous communications.
Loading
The addition of inductance to a line in order to minimize amplitude
distortion. Used commonly on public telephone lines to improve
voice quality, it can make the lines impassable to high speed data,
and baseband modems.
Loopback
A type of diagnostic test in which the transmitted signal is
returned to the sending device after passing through all or part of
a communications link or network.
Manager
An application that receives Simple Network Management Protocol
(SNMP) information from an agent. An agent and manager share a
database of information, called the Management Information Base
(MIB). An agent can use a message called a traps-PDU to send
unsolicited information to the manager. A manager that uses the
RADview MIB can query the RAD device, set parameters, sound
alarms when certain conditions appear, and perform other
administrative tasks.
Master Clock
The source of timing signals (or the signals themselves) that all
network stations use for synchronization.
Network
(1) An interconnected group of nodes. (2) A series of points,
nodes, or stations connected by communications channels; the
collection of equipment through which connections are made
between data stations.
Packet
An ordered group of data and control signals transmitted through
a network, as a subset of a larger message.
Payload
The 48-byte segment of the ATM cell containing user data. Any
adaptation of user data via the AAL will take place within the
payload.
Physical Layer
Layer 1 of the OSI model. The layer concerned with electrical,
mechanical, and handshaking procedures over the interface
connecting a device to the transmission medium.
Port
The physical interface to a computer or multiplexer, for connection
of terminals and modems.
Protocol
A formal set of conventions governing the formatting and relative
timing of message exchange between two communicating
systems.