Table of Contents
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Glossary
g–2
EXT
External Reference Clock
FAST
Fully Accessible System Topology
FIFO
First in/First Out
FW
Firmware
GND
Ground
Hz
Hertz (cycle per second)
I/O
Input/Output
IF
Intermediate Frequency
kHz
Kilohertz (10
LCD
Liquid Crystal Display
LDVS
Low Voltage Differential Signal
LED
Light-Emitting Diode
lf
Line Feed
m
-3
mille (10
)
MPEG
Motion Picture Expert Group
M&C
Monitor and Control
Max
Maximum
Mbit/s
Megabits per second
MC
Monitor and Control
MFS
Multiframe Sync
MHz
Megahertz (10
Mod
Modulator
MOP
Modulated Output Power
MSB
Most Significant Bit
-9
n
nano (10
)
N/A
Not Applicable
NC
No Connection or Normally Closed
NO
Normally Open
p
-12
pico (10
)
PCB
Printed Circuit Board
PLL
Phase-Locked Loop
PPM
Parts Per Million
QPSK
Quadrature Phase Shift Keying
RAM
Random Access Memory
RD
Receive Data
RF
Radio Frequency
RR
Receiver Ready
RS
Ready to Send
RT
Receive Timing
RTS
Request to Send
RX
Receive (Receiver)
RXD
Receive Data
s
Second
SCT
Serial Clock Transmit
SD
Send Data
ST
Send Timing
SYNC
Synchronize
TT
Terminal Timing
TTL
Transistor-Transistor Logic
TX
Transmit (Transmitter)
TXCLK
Transmit Clock
TXD
Transmit Data
US
United States
V
Volts
VAC
Volts, Alternating Current
VCO
Voltage-Controlled Oscillator
VDC
Volts, Direct Current
3
Hertz)
6
Hertz)
SDM-2020 Satellite Demodulator
Rev. 3
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