Disk Mode
Disk Mode Page
13-3
SCSI Termination
Simply put, SCSI termination prevents the electrical signals used by SCSI devices from being
reßected from unconnected SCSI ports, and possibly disrupting the data stream. The rule for
SCSI termination is that the two SCSI devices on the ends of a chain of SCSI devices must be
terminated, and all devices in between, however many, must be unterminated. Newer SCSI
devices usually make it easy to enable or disable their termination settings. Older SCSI devices
may require an external terminator to be installed. These are available at all personal computer
stores. Make sure you get the right size for your device (25-pin or 50-pin).
ItÕs impossible to describe all the possible conÞgurations of SCSI devices, so weÕll provide you
with a few general guidelines that will cover the requirements for most SCSI systems. If youÕre
chaining large numbers of SCSI devices together, you may have to do a little juggling, but
chances are youÕll already have some experience with SCSI termination.
First of all, itÕs
very
important that you terminate your SCSI system properly. Improper
termination can result in lost data, can interfere with the operation of your SCSI devices, and
over the long term, can damage them.
If your SCSI system includes an Apple Macintosh
Ò
personal computer, youÕll need to be sure
that it is internally terminated. This is because the Mac has only one SCSI port, and therefore is
necessarily going to be at one end of your SCSI chain. If your Mac has an internal hard disk,
you can go ahead and hook it up, since itÕs sure to be internally terminated. Some Macs without
internal hard disks are
not
terminated, so this may cause a problem. If your Mac has no internal
hard disk, and youÕre not sure whether itÕs internally terminated, you should call your local
Apple dealer for conÞrmation.
If your SCSI system includes only the K2vx and an internally terminated Mac, youÕre all set.
Just connect the MacÕs SCSI port to either of the K2vxÕs SCSI ports, and youÕre ready to roll. The
K2vx is internally terminated, so in this case, youÕve satisÞed the requirement of terminating
both ends of the chain.
If you have an internally terminated Mac, a K2vx and an external hard disk with
two
SCSI
ports, setting up is also painless. Connect the MacÕs SCSI port to one of the hard diskÕs SCSI
ports, and the K2vxÕs SCSI port to the hard diskÕs other SCSI port. Make sure the hard disk is
not terminated, since itÕs in the middle of the chain. In this conÞguration (with a terminated
Mac at one end and the K2vx at the other), you can chain up to six hard disks between them.
Make sure theyÕre all unterminated, and donÕt forget to set each diskÕs SCSI ID to a different
value.
If you have a Mac, a K2vx and an external hard disk with only
one
SCSI port, youÕll need to
have your K2vx serviced. The only way to connect a system of this sort is to have the K2vx in
the middle (with one SCSI port connected to the Mac, and the other to the hard disk). In this
case, youÕll need to have your Kurzweil/Young Chang dealer or service center remove the
K2vxÕs internal termination. This is very easy for a qualiÞed technician to do, and shouldnÕt
take more than a half hour or so.
If you install an internal hard disk in your K2vx, the technician who does the installation
should remove the K2vxÕs termination as part of the installation. This will not necessarily
enable you to connect the K2vx in the middle of a SCSI chain, however, since the internal hard
disk has its own termination. With an internal hard disk, the K2vx should be installed at the
end of a SCSI chain. The internal hard diskÕs terminator will provide the termination for itself
and the K2vx. You can remove the termination from the internal hard disk as well, if you want
to connect your K2vx in the middle of a SCSI chain. In this case, you must either connect it in
the middle of a chain, or install an external terminator on the unused SCSI port if you connect it
at the end of a chain.
Summary of Contents for K2500RS
Page 12: ...Table of Contents TOC 12...
Page 16: ...Introduction How to use this manual 1 4...
Page 32: ...User Interface Basics The Panel Play Feature K2vxR 3 8...
Page 106: ...Effects Mode and the Effects Editor Configurations and Parameters 9 24...
Page 186: ...Song Mode Recording Multi timbral Sequences via MIDI 12 52...
Page 304: ...DSP Functions Hard Sync Functions 14 52...
Page 394: ...Programs Setups and Keymaps K2500 ROM Keymaps 21 12...
Page 402: ...LFOs LFO Shapes 23 4...
Page 406: ...Note Numbers and Intonation Tables List and Description of Intonation Tables 24 4...
Page 434: ...DSP Algorithms 26 14...
Page 450: ...MIDI and SCSI Sample Dumps SMDI Sample Transfers 29 8...
Page 464: ...Glossary 31 6...
Page 490: ...K2vx Program Farm VOX K25 Appendix A 22...
Page 494: ...K2vx Compatibility Converting programs from the K2vx to K2000 Appendix B 4...