Comtech EF Data SDM-300A User Manual

Page 462

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SDM-300A Satellite Modem

Revision 5

Glossary

MN/SDM300A.IOM

g-2

EIA

Electronic Industries Association

EMC Electro-Magnetic

Compatibility

ESC

Engineering Service Circuit or Engineering Service Channel

ESD Electrostatic

Discharge

EXT REF CLK

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

INV Invert

kbps

Kilobits per second

kHz

Kilohertz (10

3

Hertz)

LCD

Liquid Crystal Display

LED Light-Emitting

Diode

lf Line

Feed

m

mille (10

-3

)

M&C

Monitor and Control

Max Maximum

Mbps

Megabits per second

MC

Monitor and Control

MFS Multiframe

Sync

MHz

Megahertz (10

6

Hertz)

Mod Modulator

MOP

Modulated Output Power

MSB

Most Significant Bit

MUX Multiplexer

n

nano (10

-9

)

N/A Not

Applicable

NC

No Connection or Normally Closed

NO Normally

Open

NRM Normal

OQPSK

Offset Quadrature Phase Shift Keying

p

pico (10

-12

)

PCB

Printed Circuit Board

PLL Phase-Locked

Loop

PPM

Parts Per Million

PSK

Phase Shift Keying

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

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