Typical STD System Performance Levels

Contents

Typical System Performance Levels
Level 1
Level 2
Level 3
For More Information

Typical System Performance Levels

Level 1: Basic Control Systems
The first level of performance is useful where fully computerized control is required, but speed is not paramount. This includes monitoring and controlling of real-world events, such as temperature or pressure, that take hundreds of milliseconds, or even seconds, to change.

These systems can use low cost 8 or 16-bit processor cards such as Z80 or 80188 CPUs, that are very economical. Combined with an STD 56-pin card cage and I/O cards, they provide full performance solutions for cost-sensitive projects.

Processor:	STD Z80 or STD 80
		(Z80, 80188, etc.)
Card Cage:	STD 56-pin (VX series)
I/O Cards:	STD Z80 or STD 80

Level 2: Higher Speed Control Systems
Higher speed control systems are required in situations where external events are occurring many times each second, a large number of external events must be monitored and controlled by a system, or complex computations must be executed for the processing power as compared to a basic control system. A higher speed 16-bit processor card, either STD 80 or STD 32, is required. This type of processor card, combined with an STD 56-pin card cage and STD 80 I/O cards, provides a considerable increase in performance.

Processor:	STD 80 or STD 32
		(80188, '186, '386)
Card Cage:	STD 56-pin (VX series)
I/O Cards:	STD 80

Level 3: High Throughput Systems
Specialized applications, such as sophisticated instrumentation, mass data collection, and video image processing require both higher CPU processing speeds and higher bus throughputs. The STD 32 bus provides both an 8 to 32-bit wide data path, and the interrupt and DMA control signals, to effectively handle large volumes of data on the bus. These systems normally consist of a higher speed STD 32 processor card (80386, '486, etc.) combined with STD 32 I/O cards and card cages. STD 80 I/O cards can be included for lower speed I/O ports as needed.

In addition to higher speed operation with a single processor, the STD 32 Bus can accommodate multiple processor cards sharing access to the bus and the system I/O cards. This configuration is ideal for applications requiring very intense processing of multiple I/O signals.

Processor:	STD 32 (80386, '486)
Card Cage:	STD 32 (V32 series)
I/O Cards:	STD 32 and STD 80

For More Information

For additional information on STD Bus characteristics, system configurations, or application requirements, please contact VersaLogic's sales or technical support departments by phone at (541) 485-8575 or e-mail at info@VersaLogic.com.

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