Grass Valley PDR v.2.2 - Manual (Page 24)

Chapter 1 Introducing the Profile Family
6 Profile Family
Video Interface Boards
Video and audio interface boards receive incoming and send outgoing video
and audio data. These boards are responsible for converting the video and audio
to internal formats used by the disk recorder.
There are several video boards that allow a Profile unit to be used with various
standard video formats: Composite analog, serial digital component, or
component analog video are all possible. All boards accept 525/625 (NTSC or
PAL) video standards.
The latest analog composite input and output board offers two input and output
channels per board. The two output channels for this board are similar to the
output channels of the original analog composite board.
The monitor board allows you to display text and burn-in timecode on an output
monitor.
Component analog input allows dithering, auto-timing, and vertical blanking.
As with other inputs, you can automate VITC detection. You adjust input gain
and also select an input format such as Betacam.
A serial digital component board handles both input and output. You can also
enable dithering, auto-timing, and automate VITC detection. The board also
has error detection and handling.
The standard reference genlock board allows you to time your Profile disk
recorder to other devices in a broadcast facility. You can lock a Profile unit to
a PAL or NTSC reference signal (house black). The genlock board also lets you
have four LTC inputs and outputs, one input and one output for each for the four
possible channel.