Connecting A Scsi Device; Scsi Termination - Kurzweil K2600 Musician's Manual

Disk Mode

SCSI Termination

If the ßoppy you inserted is double-density and you press the 1.4M soft button, the format
procedure will fail. This is also true if the disk is high-density and you press the 720K soft
button. If the ßoppy is single-sided (SSDD), you can press the 720K soft button, and the ßoppy
will be formatted as a double-sided disk. (The only difference between single- and double-sided
ßoppies is that both sides of a double-sided ßoppy have been tested by the manufacturer.)
Once you select between the 720K or 1.4M format, the K2600 will remind you that formatting
will erase the ßoppy, and will give you two more chances to cancel the formatting procedureÑ
we want to make sure you donÕt accidentally erase any disks. Press the Yes soft button to
continue formatting. When formatting begins, the display will tell you that the disk is being
formatted. YouÕll hear the disk drive turning, and the disk drive LED will light.
Formatting a 1.4M ßoppy disk takes just under three minutes, including the automatic
veriÞcation. When formatting is Þnished, the K2600 asks you if you want to format another disk.

Connecting a SCSI Device

ItÕs easy to connect SCSI devices to the K2600Õs SCSI ports. Using a SCSI device will give you off-
line storage, and can speed up your loading and saving operations considerably.
YouÕll need a SCSI cable with a 25-pin SCSI connector on the end to be connected to the K2600. If
your SCSI device does not have a 25-pin connector at one end, you can Þnd SCSI cables like
these at any personal computer store. Connect the 25-pin end of the cable to either of the K2600Õs
SCSI ports, and the other end to your SCSI device. Two SCSI ports are provided to enable you to
chain SCSI devices together. Before you start connecting cables, however, please read the next
section carefully. WeÕve also included important information about SCSI in Chapter 6 of the
MusicianÕs Reference.
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 a personal computer, youÕll need to be sure that it is internally
terminated. If youÕre not sure whether itÕs internally terminated, you should call your local
computer dealer for conÞrmation.
If your SCSI system includes only the K2600 and an internally terminated computer, youÕre
probably all set. First, check the SCSI Termination switch on the K2600Õs back panel (next to the
SCSI ports), and make sure that itÕs set to Auto. Then connect the computerÕs SCSI port to either
of the K2600Õs SCSI ports, and youÕre ready to roll. With the K2600Õs termination enabled,
youÕve satisÞed the requirement of terminating both ends of the chain.
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