Comtech EF Data SDM-650B User Manual
Page 345

SDM-650B Satellite Modem
Glossary
Rev. 5
Draft
g–5
RX Receive
(Receiver)
RXCLK Receive
Clock
RXD Receive
Data
RZ Return-to-Zero
s Second
S/N Signal-to-Noise
Ratio
SCPC
Single Channel Per Carrier
SCR
Serial Clock Receive
SCT
Serial Clock Transmit
SCTE
Serial Clock Transmit External
SD Send
Data
SFS Subframe
Sync
SMS
Satellite Multiservice System
SN Signal-to-Noise
Ratio
SSB Single-sideband
SSPA
Solid State Power Amplifier
ST Send
Timing
SW Switch
SYNC Synchronize
TB Terminal
Block
TCXO Temperature-Compensated Crystal Oscillator
TDMA
Time Division Multiple Access
TEMP Temperature
TERR Terrestrial
TP Test
Point
TT Terminal
Timing
TTL Transistor-Transistor
Logic
TX Transmit
(Transmitter)
TXCLK Transmit
Clock
TXD Transmit
Data
TXO TX
Octet
U/C Up
converter
UART
Universal Asynchronous Receiver/Transmitter
UHF Ultra-high
Frequency
UNK Unknown
US United
States
UW Unique
Word
V Volts
VAC
Volts, Alternating Current
VCO Voltage-Controlled
Oscillator
VCXO
Voltage-Controlled Crystal Oscillator
VDC
Volts, Direct Current
VSWR
Voltage Standing Wave Ratio
W Watt
WG Waveguide