Cisco Prisma II 1310 nm HDTx Transmitters Installationsanleitung
2- Glossary
78-4010846-01 Rev D
Glossary,
Continued
PLL
Phase Lock Loop. An electronic servo system controlling an oscillator
to maintain a constant phase angle relative to a reference signal.
QAM
Quadrature amplitude modulation
RF
Radio frequency
RT
Remote terminal
RHEDA
Reverse Headend Driver Amplifier
RMA
Return material authorization
RX
Receive
SBS
Simulated Brillouin scattering
SMC
Signal management controller
SNMP
Simple Network Management Protocol
TEC
Thermo-electric cooler
TNCS
Transmission Network Control System
Torque
Force applied to bolt or screw to tighten the device
TX
transmit