Harris Corporation Constellation®
Glossary-5
GLOSSARY
RSL. Received Signal Level.
RTU. Remote Terminal Unit.
RX. Receiver.
S
SAI. System Application Information.
SCAN. System Control And Alarm Network. Harris’ proprietary standard for
sending alarm/status/control messages over a serial port.
SD. Space Diversity. Pertaining to signal transmission and reception in which
two or more separate and independent propagation media or paths are used for
transmitting the same information.
SES. Severely Errored-Seconds.
SLVA. Successive Log Video Amplifier.
SNMP. Simple Network Management Protocol.
SNR. Signal-to-Noise Ratio.
SPU. Signal Processing Unit.
SPUR. Extended SCAN port. A communications channel branching of from
the trunk and generally carrying less traffic than the trunk.
ST. Split Transmitters.
T
TCM.
Trellis-Coded Modulation.
TFM. Thermal Fade Margin.
T/I. Threshold-to-Interference ratio.
TIA. Telecommunication Industries Association.
TOR. Top Of Rack.
TSL. Transmitted Signal Level.
TX. Transmitter.
U
UBER. Uncorrected Bit Error Ratio.
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