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Installation Procedures
When a jumper is placed on pins 7 and 8 of P14, the spindle synchronization signal of drive 1 is con-
nected to the spindle synchronization signal of drive 2. Note that further SCSI commands to the drives
are needed to make the spindle synchronization option active.
3.5
Power Supply Considerations
The connectors P1 and P2 to the VMEbus serve several functions:
give strength to the board
•
•
connect the power supply pins of the VMEbus backplane
give access to the SCSI bus signals through the P2 connector
•
In addition to the Ground pins two power supply connections are used by the BI-0316: +5Vdc and
+12Vdc.
3.5.1
+5Vdc Pins
The VMEbus P1 connector provides three pins for +5Vdc and another three +5Vdc pins are available
on the VMEbus P2 connector. These pins supply enough current for any combination of drives on the
BI-0316.
3.5.2
+12Vdc Pins
The single +12Vdc pin on the VMEbus P2 connectors allows for at least 12 Watts of power to the
mounted drives. This is sufficient for almost all combinations possible with the BI-0316. For modules
that draw more current from the +12Vdc than is allowed via the single VMEbus P1 connector pin, an
extra +12Vdc pin is defined on the VMEbus P2 connector. This pin can be externally connected to the
+12Vdc power supply used on the VMEbus using the BI-0318 or BI-0319 transition module. When
Brand Innovators encounters such a need for a module, it will clearly state this in its deliveries.
Brand Innovators
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
8
Spindle Sync Option PCB Version 1.1
Figure 3-6
Page 3-4
7
BI-0316
Technical Manual
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