CONNECTING AND OPERATING INTERNAL AND
EXTERNAL SCSI DEVICES
FThe CYBERSTORM MKIII has an internal non-terminated 68pin female high density SCSI
connector following the ULTRA WIDE SCSI standard. All kinds of internal and external SCSI devi-
ces can be connected through this SCSI connector. It is important to take care that the SCSI bus
is correctly terminated, as it is explained in the paragraphs and examples below, and that the SCSI
ID of the devices is correctly set, as it is also explained in the following paragraphs. The SCSI
cables and adators which are needed to connect different types of SCSI devices can be obtained
at your local dealer; we recommend to ask the dealer where you have bought your CYBERSTORM
MKIII for the cabels and adaptors you may need.
Internal ULTRA WIDE SCSI devices will be connected by use of a 68pin flat ribbon cable. If you
want to connect FAST SCSI devices to the CYBERSTORM MKIII, you will need an adaptor to brid-
ge from the ULTRA WIDE SCSI bus to the FAST SCSI bus. This adaptor must have an active ter-
mination of the eight upper data lines of the ULTRA WIDE SCSI bus; please make absolutely sure
that you choose the right type of adaptor.
For the connection of external SCSI devices you will need an adaptor for connecting these devi-
ces, which are available in several different forms. When you choose the adaptor that fits your
needs make sure that you choose the right external connector type (depending on whether you
want to connect ULTRA WIDE SCSI devices or FAST SCSI devices), and that the adaptor - in case
it is the bridge from ULTRA WIDE SCSI to FAST SCSI - includes an active termination of the eight
upper data lines of the ULTRA WIDE SCSI bus.
During the operation of external SCSI devices it should be taken care that the external devices are
always switched on before the computer is switched on, and that they are always switched off after
the computer has been switched off.
ADVICE
For the connection of external SCSI units only top quality screened cables are admitted,
which comply with the valid standards (CE, FCC, or similar). For purchasing such cables,
which offer the corresponding attenuation properties, please turn to your retailer.
Please also be aware that external SCSI units have to fulfill the valid standard norms!
42
CHAPTER 4
THE ULTRA WIDE SCSI CONTROLLER
Figure 7.
Summary of Contents for CYBERSTORM MKIII
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