Envision Peripherals NV3128 - Manual (Page 84)

NV3128 RS-422A Machine-Control Data Routing Switch G-4
MOV ................................................. Abbreviation for Metal Oxide Varistors
MUX ................................................. Commonly used abbreviation for Multiplexer Board
Nm ................................................... Nanometer - metric measurement, refers to frequency
of fiber optic spectrum
NTSC ............................................... National Television Systems Committee. The standard
broadcastspecifications approved by the Federal
Communications Commission (FCC) in 1953 for
commercial color television in the U.S. Television
signal is scanned in 525 lines
Oversampling ................................. Digital sampling technique to increase digital sample
rate
PAL .................................................. Phase Alternate Lines. European, Asian, and Australian
color television standard. An improvement on the
NTSC. Television signal is scanned in 625 lines
PROM .............................................. Programmable Read Only Memory
PWM ................................................ Abbreviation for Pulse Width Modulation
RAM ................................................. Abbreviation for Random Access Memory
S/N ................................................... Commonly used abbreviation for Signal to Noise ratio.
Simplex............................................ Uni-directional
SMPTE............................................. Society of Motion Picture and Television Engineers
ST type connector .......................... A fiber optic connector
Stereo .............................................. A system of sound reproduction for two precisely
phased channels of audio
Stereo pair....................................... Left and right channels of stereo audio
STL .................................................. Studio Transmitter Link
Switcher .......................................... A device which performs simple or complex video
transitions, i.e, cuts, dissolves, wipes, keys
Synchronization ............................. The process whereby two machines are controlled by
identical time bases
Take ................................................. A connection command given to a signal routing device
Timecode ........................................ Standard for encoding time in hours, minutes, seconds
and frames of video
TTL .................................................. Transistor, Transistor Logic