Grass Valley PROFILE FAMILY v.2.5 - Manual (Page 26)

Chapter 1 Introducing the Profile Family
26 Profile Family
The PDR200 and PDR 300 come with the Audio Signal Processing board
(ASPB). This audio architecture accepts and simultaneously processes sixteen
audio inputs and outputs. Internally, all audio is processed with a selectable
storage resolution of 16 or 20 bits. Inputs may be individually clocked in groups
of four, and any clock group may be referenced to the system reference (house
black) or any one of four video inputs. Output clocking is synchronous to
system reference. Sample rate conversion is available for all inputs (30 to
50kHz), providing uniform storage at 48kHz.
You can configure the PDR200 or 300 to operate with analog, AES/EBU
digital, or embedded (SMPTE 272M Level A) audio, depending on which
options are installed in your system. All three audio formats are supported
without external conversion equipment. Analog audio is only available with an
optional PAC208 or PAC 216 Analog/Digital Interface chassis. You can
expand the number of XLR or BNC connectors for AES/EBU audio with an
optional XLR 216 or BNC216 Digital Interface chassis.You can choose an
audio format for each video channel. For example, you could enable analog
audio on one channel, embedded audio on another, and AES/EBU on the rest.
There are several video boards that allow a Profile video server to be used with
various standard video formats: composite analog, serial digital component, or
component analog video are all possible. All boards accept 525 or 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. An analog composite
monitor board allows you to display text and burn-in timecode on an output
monitor.
The component analog input allows dithering, auto-timing, and vertical
blanking. As with other inputs, you can automate VITC detection. You can
adjust input gain and also select an input format such as Betacam.
A serial digital component board provides two channels of both input and
output, plus embedded audio when used with an ASPB. 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 server 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
LTC inputs and outputs, with four inputs and four outputs possible for each
channel.