ComStream CM601, Инструкция по установке и эксплуатации

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Glossary 5
LNB low-noise block downconverter
lock proper carrier is located and is being received
loopback test in which the routing signal is directed only through the designated equipment
or portions of the satellite link to isolate setup problems
loop-timed system
system using a single clock source for the entire point-to-point, round-trip circuit;
this circuit extends from the master station through a satellite relay to a slave
station and then back through a satellite to the master station
LSB
least significant bit
M&C
monitor and control – refers to the CM601 M&C card that is the interface between
the user and any other modules in the CM601
Mbps million bits per second
MCPC multiple channels per carrier
MHz megahertz
mod modulator
ms or msec millisecond
Msps million symbols per second
MTBF mean time between failure
N/A not available or not applicable
NF Noise figure
nonvolatile or NV nonvolatile memory – the parameters of most configuration commands are stored
in nonvolatile memory, which means they are remembered by the CM601 even
after power is cycled or the CM601 is reset. For this reason these commands need
not be reissued unless a change to a particular operating characteristic is required.
OCXO
oven-controlled crystal oscillator
ODU
outdoor unit
OMT
orthogonal mode transducer