Connecting External Scsi Media - Tascam MMP-16 Owner's Manual

Connecting External SCSI Media

The MMP-16 SCSI interface card is pre-set to SCSI ID 7. The internal removable drive in the MMP-16 is
set to SCSI ID 0. Each device added in the SCSI chain must have a unique SCSI ID number or else the
MMP-16 will not boot properly.
External SCSI connections should be made using the shortest possible length of double-shielded SCSI-2
cables with 110 ohms impedance. Only the last drive in the chain is terminated. All other drives must
have their terminating resistors removed or have termination jumpers set to off (including those drives
placed in the MMP-16 internal drive slot). SCSI cables are readily available from most computer stores.
For the most reliable operation, the total length of SCSI cabling must not exceed 15 to 20 feet.
All drives must be pre-formatted using a single partition. Drives with capacities of up to 9 GB have been
tested and found suitable for use with the MMP-16. The MMP-16 system plays all audio from separate
uncompressed 16-bit or 24-bit linear files. Approximately 5 MB (Megabytes) of disk space is required for
each minute of audio recorded per track. Thus a 4 GB drive can hold about 12 track hours of 16-bit audio,
while a 2 GB drive will hold about 6 track hours.
For backing up files, and for ease of moving smaller projects around, we recommend using a
"LIM/DOW" (Light Intensity Modulation / Direct Over Write) type optical disk. The LIM/DOW
technology achieves better performance than is available on older types of Magneto-Optical media, which
must execute an erase pass before they can write new data to the disk. The Nikon Beluga AV MO
(Magneto-Optical) disk drive has been tested and rated to perform well when used with the MMP-16. A
chart of currently tested and certified disk drive media is given in Appendix B, MMR Approved Drives
List. The results from performance tests of the NIKON Beluga AV MO drive with 1K per sector media
are also given there. It is possible to use other removable media such as the IOMEGA Jaz drive and the
SyQuest Syjet, but these do not provide the same level of performance for recording as a hard drive and
they are more fragile than optical drive media is. DAT, Exabyte and other streaming tape device cannot
currently be used with the MMP-16 system.
28 Tascam MMP-16 User's Guide • Chapter 2 • Installation MMP-16