Grass Valley PDR 200 Service Manual - Manual (Page 20)

Chapter 1 Introduction
1-4 PDR 200 Service Manual
Audio
In its standard configuration, the PDR 200 supports 16 channels of AES/EBU digital
audio connected to the PDR200 through the Audio Signal Processing Board (ASPB)
from either the XLR216 or BNC216 external panel. With the optional PAC208/
PAC216 Analog/Digital Interface chassis, the PDR200 supports 8/16 channels of
analog audio I/O through the ASPB. In addition, the Serial Digital I/O board supports
embedded audio, which is also processed by the ASPB.
Fibre Channel Networking
With the Fibre Channel option, the PDR200 provides for the transfer and sharing of
material with other Profiles on the Fibre Channel network. Compressed digital data
flows from one Profile to another Profile over the high speed Fibre Channel network
at up to 4-5 times real time. The Fibre Channel network requires Ethernet for
command and control signals.
Ethernet
Ethernet supplies the LAN communication, command, and file transfer ability to the
PDR 200.
Storage
The Enhanced Disk Recorder (EDR) boards control the media hard disks, and provide
the JPEG compression/decompression. The Master EDR can control as few as four
and as many as twelve 9GB Ultra SCSI hard disk drives. A Slave EDR can be added
to control four to twelve additional 9GB hard disks.
The optional PDX 208 Disk Expansion Chassis contains its own power supply and
eight 9GB hard disks in a three rack units high chassis. It may be configured as two
banks of four to support a 4-channel Profile (i.e., a Profile with Master and Slave
EDRs) or one bank of eight hard disks to support a 2-channel Profile (i.e., one with
only a Master EDR).
Up to 96 hours of program material storage can be realized by the addition of one or
more PRS200A RAID units. The PLS200 Profile Data Tape Library System can also
be added to the PDR200 for off-line storage of material in its compressed data format.
Note that you may choose to have a PDR 200 without any internal media hard disk
drives. A “diskless” PDR200 requires internal termination of the SCSI bus(es)
through software.
Reference Genlock and Time Code
The Reference Genlock board provides a reference signal to the PDR200, either
internally if no house signal is available or through BNC connectors at the rear panel.
This reference signal synchronizes the system’s 27 MHz video clock and provides
field reference for the system.
This board also provides eight (four inputs and four outputs) Longitudinal Time Code
interfaces through the DB-25 connector at the rear panel.