Cisco Cisco Prisma II EDR Receiver Guida All'Installazione
78-748705-01 Rev C
Glossary-9
Glossary
, Continued
Scattering
Random directional change of a wave or part of a wave
caused by an irregular reflecting surface or by passing
through an inhomogeneous transmission medium.
SLM
Signal level meter
SM
Status monitor
SMC
Status monitoring and control
SMIU
Status Monitor Interface Unit
SMU
Server Management Unit
S/N or SNR
Signal-to-noise ratio
SNMP
Simple Network Management Protocol
SONET
Synchronous optical network
SP
Splitter. It is a device that divides power from an input to
deliver multiple outputs or combines multiple input into
one output.
Spread Spectrum
A modulation technique to spread a narrow band signal
over a wide band of frequencies.
Spurious
Anything other than the desired result
SSPA
Solid-state power amplifier
Sweep generator
A signal source which can automatically vary its frequency
continuously from one frequency to another.
Synchronous
transmission
A method of sending information over a path and
separating discrete characters and symbols by a precise
separation in time.
TEC
Thermo-electric cooler
TCP/IP
Transmission control protocol/internet protocol
TDM
Time division multiplexing
TNCS
Transmission Network Control System
Torque
Twisting force applied to a device.
TS
Transport Stream