About Scsi; Connecting A Scsi Device; Scsi Devices That Can Be Used; What You Need To Know Before Making Connections - Roland XV-5080. Owner's Manual

About SCSI

Connecting a SCSI device

In order to load wave data from a sound library (a CD-ROM
containing sounds or phrases) into the XV-5080, or to save
data on a removable disk or hard disk, you will need to
connect a separately available SCSI device.
SCSI devices are delicate. Incorrect connections or operation
may not only cause the device to malfunction, but may even
destroy the data on the disk, or permanently damage the
SCSI device itself. Please read the owner's manual for your
SCSI device together with this manual.

SCSI Devices That Can Be Used

The following types of SCSI device can be used with the XV-
5080.
Zip Drive
This is a removable disk drive that features high-speed
reading and writing of data, and is resistant to physical
shock and dust.
MO Drive
This removable disk utilizes MO (magneto-optical) storage
media, which uses both laser light and magnetism for high-
precision data storage.
Hard Disk
This is the storage media with the fastest data read/write
time. It has a high capacity, and is able to store an extremely
large amount of data. However, since the disk cannot be
removed, hard disks are not convenient when you need to
exchange or transport data.
* If you share a single hard disk between two XV-5080 units,
never allow both XV-5080 units to read from, or write to the
hard disk simultaneously. Doing so may damage the data or
the connected devices.
* Do not share a single hard disk between the XV-5080 and a
computer. Doing so may damage the data or the connected
devices. Some computers automatically access the disk at
regular intervals, which may cause both the XV-5080 and the
computer to access the hard disk simultaneously.
CD-ROM Drive
This is a device for loading wave data from a sound library.
What you need to know
before making connections
Types of SCSI cables and SCSI
connectors
The XV-5080 provides the SCSI connector (DB 25-pin type
(SCSI-A)).
fig.scsi-001.e
Use a SCSI cable to connect to XV-5080 to a SCSI device.
Check the connector type and number of pins on the SCSI
device you wish to connect, and purchase the appropriate
cable.
Use a SCSI cable that is as short as possible, that is
completely shielded, and that has an impedance compatible
with the SCSI standard (110 ohms, +/-10%).
The total length of SCSI cables for all connected SCSI devices
must not exceed 6.5 meters.

About SCSI Chains

A maximum of seven SCSI devices can be connected to the
XV-5080. Use SCSI cables to connect SCSI devices as follows.
SCSI connectors make no distinction between input and
output, so you may use either one. This type of connection is
called a SCSI chain or a daisy chain.
fig.scsi-002.e
XV-5080 Disk Drive1
(Zip Drive, etc) (CD-ROM Drive, etc)

About Terminators

To prevent malfunctions caused by aliasing noise, a
terminating resistor must be attached to the devices at either
end of a SCSI chain. This is called the terminator. Some
terminators are "internal," and can be switched on/off by a
switch. Other terminators are "external," and can be attached
to the SCSI connector. The XV-5080 features a built-in
terminator.
As an external terminator, we recommend that you use an
active terminator. In this case, if you are using a SCSI device
that allows you to switch the terminator power on/off, be
Disk Drive7
239