Crystal Vision Introduction
1 Introduction
ViViD 3GT-20 is a 3Gb/s-compatible variable video delay. The maximum delays
possible are ten seconds for 3Gb/s, 20 seconds for HD and 110 seconds for SD
signals. Delays are adjustable in seconds,frames, lines and pixels for precise
matching of system delays. The pass-through delay for ancillary timecode (ATC) or
VITC can be set to match the video signal or set to a minimum value to effectively
advance timecode with respect to the video.
The main features are as follows:
•Use with any source – works with 3Gb/s, HD and SD.
•Supports the following video standards: 625, 525, 720p50, 720p59, 1080i50,
1080i59.
•Optimise the video: video proc-amp allows adjustment of video gain, black level
and independent YUV gains.
•Multiple video outputs – Four delayed outputs save the need for an additional
DA.
•Control of ViViD 3GT-20 is most easily achieved with VisionWeb PC software
but also by an active front panel on the frame, a remote panel and SNMP. Board
edge control was also available prior to 2019.
•Optical connectivity – send signal beyond the local equipment bay with the
fibre input and output options.
•GPI control – 16 presets allow different delay values to be assigned then
recalled automatically by GPI.
•HANC and VANC blanking option.
•EDH insertion.
•Supports rear module connectors: RM41, RM57, RM67.
•Compatible with Crystal Vision standard frames available in 2U, 1U and desk
top box.
•Passes all timecode, AFD, subtitling information, Dolby E metadata and
embedded audio.
•Timecode pass-through delay can follow video or be set to minimum.
•Freeze output –Force output to freeze or produce black, blue or bars manually,
or automatically if input video lost.
•GPI Output Alarms – Two output alarms if input video is missing, black or
frozen.
ViViD 3GT-20 User Manual R1.1 320 January 2021
