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

 

Disk Drive7

 

(Zip Drive, etc) (CD-ROM Drive, etc)

About Terminators

To prevent malfunctions caused by aliasing noise, a

Appendices

switch. Other terminators are “external,” and can be attached

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

 

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

 

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Roland XV-5080 owner manual Connecting a Scsi device, What you need to know before making connections