Harris Constellation - Page 245

Harris Corporation Constellation™
Glossary G-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.