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Emulator II: CDS3 CDROM Drive
Introduction The CDS3 (Compact Digital Sound System) was one of the first CDROM products ever made. The average
access time is 1 second, the CDROM's hold up to 600 MB, and the data is transferred at 512kbit/sec into the Emulator II RS422 serial port.
 The CDS3 system includes a built in filing program (a simplified data base program) that enables you to
quickly locate the voice bank you're looking for. Ideally the CDS3 system should be used with an Apple Macintosh computer, which provides easy on-screen access to the voice menus, and controls the transfer
of voice banks to the Emulator II. In situations where a Mac is not available, the OMI hand held computer terminal (CRM3) has to be used instead.
CDS3 Program The CDS3 software is compatible with the Sound Designer for EII program from Digidesign. Both programs can run
together on a Mac with 1MB or more of memory. Double density diskettes can be used to store voice banks on the Mac, but not single density (the 551KB file won't fit on a 400KB floppy).
Attention Unlock First !!
The CDS3 unit came locked to avoid damage in transit. This lock must be freed before using the drive.
- With power off, turn the CDS3 upside down and locate the adjusting screw
- Using a screwdriver loosen the screw and slide it to the FREE position.
- Tighten the screw.
Always relock the drive when shipping or transporting the drive any distance. The CDS3 is very sensitive and can be easily damaged.
Option Settings
Locate the Option Settings in the upper right
hand corner of the back panel of the CDS3 unit. Check the dip switches are set for the configuration you are using. Always change the settings when changing configuration. Always turn the CDS3 off when changing settings.
Note: Black = what the dip switch is set to.
Hand Held Only Settings for the when the CDS3 is used with the Hand Held Terminal only (no Mac computer).
Mac at one End Settings for using the CDS3 with no Hand Held Terminal and a Mac connected to the CDS3 only.
Mac in the Middle Settings for using the CDS3 with no Hand Held Terminal and with the Mac connected in the middle, between the
Emulator II and the CDROM drive.
Select, Terminator and Mode Settings The CDS3 was designed for daisy chaining multiple CDS3 units, all controlled by one
computer. It is unlikely this was ever implemented, so the correct settings are for a single unit. These settings are located on the back panel of the CDS3.
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Select ----------------
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Terminator -----------------
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Mode ---------------------------------
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CDS3 to Emulator II Cable
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CDS3 DB9 pin
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This cable does not appear to need shielding, but the cable shield can be connected to Pin 5 (Ground) on the CDS3.
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