Specifications

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.
Multimode Fiber
A fiber with a large core diameter; 50-200 microns compared with the
wavelength of light. It therefore propagates more than one mode.
With multimode fiber, light traverses multiple paths, some longer than
others. This leads to dispersion, which reduces optical range.
Multiplexer
At one end of a communications link, a device that combines several
lower speed transmission channels into a single high speed channel. A
multiplexer at the other end reverses the process. Sometimes called a
mux. See Bit Interleaving/Multiplexing.
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.
parameters
Parameters are often called arguments, and the two words are used
interchangeably. However, some computer languages such as C define
argument to mean actual parameter (i.e., the value), and parameter to
mean formal parameter. In RAD CLI, parameter means formal
parameter, not value.
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.
prompt
One or more characters in a command line interface to indicate that
the computer is ready to accept typed input.
Protocol
A formal set of conventions governing the formatting and relative
timing of message exchange between two communicating systems.
Routing
The process of selecting the most efficient circuit path for a message.
RTS (Request To
Send)
A modem control signal sent from the DTE to the modem, which tells
the modem that the DTE has data to send.
Single Mode
Describing an optical wave-guide or fiber that is designed to
propagate light of only a single wavelength (typically 5-10 microns in
diameter).
Sync
See Synchronous Transmission.