Harris Constellation - Page 273

Harris Corporation Constellation™
Glossary-3
GLOSSARY
FD Frequency Diversity. Diversity transmission and reception in which the
same information signal is transmitted and received simultaneously on two or
more independently fadings carrier frequencies.
FEC Forward Error Correction.
H
HLM
High Level Mux.
hop The span between a transmitter and a receiver.
I
IEC International Electrotechnical Commission.
IF Intermediate Frequency; frequency below the radio frequency.
ISO International Organization for Standardization.
L
LED Light-Emitting Diode.
LNA Low-Noise Amplifier.
LO Local Oscillator.
Loopback Test A test of the coupling of a signal from the transmitting path
back to the local receiving path.
LOS Loss Of Signal.
LVDS Low-Voltage Differential Signaling.
M
M12
A multiplexing method that transforms between 1 DS1 up to 4 DS1
input/outputs and a T2 output/output.
M2X A multiplexing method that transforms between 1 T2 up to 7 T2
input/outputs and a T3 output/output.
MCD Microwave Communications Division, formerly Farinon Division.
MHSB Monitored Hot StandBy.
MIB Management Information Base.
N
NC
Normally Closed; No Connection.