ENSONIQ ASR-10 Spécifications Page 121

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I
SP-3 SCSI Interface Manual
I
Note: Some newer model Apple Computers come with a built-in CD-ROM drive. Unfortunately, this
internal CD-ROM drive has been set at SCSI device ID number 3. This will cause a conflict with
the ASR-10 (which is also internally set at SCSI device ID number 3).
If you are planning a SCSI
system where both the Apple Computer and the ASR-10 must be able to talk to the CD-ROM, you
are better off buying a computer without an internal CD-ROM drive, and instead buying an
external CD-ROM drive where the SCSI device ID number can be changed to an ID that is other
than 0 (Macintosh internal hard disk), 3 (ASR-lo), or 7 (Macintosh Computer).
Setting the SCSI Device ID Number
Each SCSI Storage Device on the SCSI network must be assigned a different SCSI Device ID
number. The SCSI Device ID determines the priority of the SCSI Storage Device. The SCSI
Device ID number can range from 0 to 7, with 7 being the highest priority. The SCSI Device ID
number of a SCSI Storage Device becomes important if two storage devices are trying to control
the SCSI bus at the same time. In this case, the SCSI Storage Device with the highest priority will
gain control of the SCSI bus.
It is important that each SCSI Storage Device be assigned a different SCSI Device ID number
ensuring predictable communication between devices. Since the range of valid SCSI Device ID
numbers is 0 to 7, a maximum of eight distinct SCSI Storage Devices can be connected to the
network.
The ASR-10 has a fixed SCSI Device ID number of 3. The Apple Macintosh computer has a fixed
SCSI Device ID number of 7. A Macintosh with an internal hard drive has the Macintosh at SCSI
Device ID number 7 and the internal hard drive at SCSI Device ID number 0. Most other SCSI
Storage Devices provide a way of changing their SCSI Device ID numbers. When buying a SCSI
Storage Device for use with the ASR-10, make sure that there is an external switch provided for
changing the SCSI Device ID number. Refer to the manuals of the other SCSI Storage Devices in
your system to determine how to change their SCSI Device ID numbers.
e
Important: Set the SCSI Device ID number of your storage device to any number (0 to 6)
except
3!
The SCSI Device ID number of your SCSI Storage Device must be different from
that of the ASR-10. If it isn’t, the ASR-10 will never see it.
~.WZllTliilg:
If you change the SCSI, ID of your SCSI Storage
Device after you format it, your Macros and Banks will no longer work
properly. The ASR-10 will be able’to find the SCSI Storage Device but
the device ID portion of the file path will be different.
ENSONIQ
AS&l
0 Version 3 Operating System
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