LD-V4400 Videodisc Player
•
•
•
Computer
Level III programs are developed on a
computer. Commands are sent to the
player directly from the computer to
control a specific interactive videodisc. In
addition to providing interactive control of
the videodisc player, the computer can
also send graphic overlays to the video
monitor, provide access to a
computer database, etc.
(See
Chapter 4
and
Appendix A
.)
For detailed information about Computer Control of the LD-V4400, see
Chapter 4 and Appendix A of this manual.
LEVEL
3
Level III programs are used to control the videodisc player from an external computer attached to
the player’s RS-232C port. The player’s Level III mnemonic command set is used to develop
interactive programs for the LD-V4400. (See
Appendix A for the list of mnemonic commands
available on the LD-V4400.) Level III mnemonic commands are also used to control the LD-V8000,
CLD-V2600, CLD-V2400, LD-V2200, and the discontinued LD-V4200, (NTSC players), the
LD-V4300D & CLD-V2300D (NTSC/PAL players) the LD-V4100 (PAL player). (See
Pioneer
Technical Bulletin #143A for a comparison chart, showing the Mnemonic Commands available
on Pioneer NTSC industrial videodisc players.) Level III is often used when a program designer
wants users to access a large database from a computer, along with video and audio material on
a videodisc. Level III requires that a computer be connected to every videodisc player. A file
server may be used to network the computers at the various workstations.
RS-232C cable to
RS-232C port on
back of player
LD-V4400 Level I & III • Chapter One
Level III — External Computer Control
Figure 1-C
LD-V4400 Level I & III User’s Manual
TP 116
v1.1 • 9/93
1
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5
Summary of Contents for LD-V4400 Level I
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