Grass Valley PDR 200 Service Manual - Manual (Page 35)

System Overview
PDR200 Service Manual 3-3
Figure 3-2. Profile High Level System Partitioning
An internal Pentium system processor board, which operates on an EISA bus
structure, controls the PDR200. The Pentium processor uses the Windows NT
operating system. The system processor has its own dedicated hard disk, which stores
the Windows NT operating system and the required PDR200 operating and
applications software. In addition, a floppy-disk drive, or an optional parallel port
CD-ROM, provides for installation or repair of software.
User Interface consists of a keyboard and mouse, and an RS-422 interface. Two
additional RS-232 interfaces, which are full communications ports, are supplied for
service and diagnostic purposes. A VGA monitor output, to drive a SVGA monitor,
provides a Graphic User Interface (GUI).
Media I/O circuitry converts video signals for recording to CCIR-601-2 parallel 8-bit
digital format before the video is routed to media disks for storage. The parallel
format video is routed through a 32 by 32, 8-bit video routing switch.
9675-50
Buffer
Protocol
Tx/Rx
PCI
Bus
EISA
Bus
Video
Router
CODECs Vx
Disk
I/F
Media
Hard Disks CODECs
Disk
I/F
F/C
MEDR
SEDR
DSP
Processor
ASPB
Link Ports
2 In 2 Out
PAC
In
Out
Serial I/O
Fx
3 In
F/C Interface
1 GB
1 Out
AES
Embedded
Analog