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GPIB Protocol Compatibility:
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Your choices are...
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IEEE 488.1 Compatible
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The ANSI/IEEE Standard 488-1975, called simply the IEEE 488.1 Standards, defines mechanical, electrical and protocol specifications for the interconnection of programmable instruments. The standard specifies that a GPIB network supports a maximum of 14 devices on the bus and a maximum data transfer rate of 1 MBps.
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IEEE 488.2 Compatible
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IEEE 488.2 is an enhancement to the original IEEE 488.1 Standards. IEEE 488.1 did not specify how data should be formatted, how the status of the bus should be reported, how messages are to be exchanged, and other important features. To solve these shortcomings of the original standard, Tektronix® proposed a set of standard formats in 1985. This was the basis for IEEE 488.2 Standard. Specifically IEEE 488.2 standardized data formats, status reporting, error handling, controller commands, etc.
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HS488 Compatible
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High Speed 488 (HS488) is a new, faster protocol developed by National Instruments® that accelerates data transfer rates up to 8 MBps using standard GPIB cables. HS488 is a superset of the original standard IEEE 488.1 implemented at the hardware level by an ASIC (Application Specific Integrated Circuit). HS488 is undergoing standardization review in the Working Group for Higher Performance IEEE Standard 488.1.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Bus Isolation:
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The isolation voltage that the expander provides to electrically separate the two GPIB ports. In one side of the expander there may be sensitive instruments, and in the other side there may be noisy devices. The isolation voltage is important in this case.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Signal Propagation Delay:
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With an expander that connects two GPIB networks, signals transferring from one side to the other experience speed degradation (time delay) when going through the expander. These propagation delays should be minimal to preserve the system quality.
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Search Logic:
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All matching products will have a value less than or equal to the specified value.
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External Indicators?
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External Indicators (normally LEDs) for Talk, Listen, Receive, Send, Power, Ready, etc.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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CE / FCC Certified?
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The unit conforms with the American requirements of the Federal Communication Commission (FCC) and with the European CE Marking (Conformite Europeene or European Conformity) system, which is helpful for exports to the countries of the European Economic Area (EEA).
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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GPIB network,
Network Data Model,
downlink transfer data,
expander graph,
range wireless expander,
beam zoom expander,
gpib opto isolator,
network data aircraft,
volume expander,
aircraft data network,
isolator GPIB,
GPIB expander,
software-defined data network,
Computer Network Attack,
GPIB isolator,
gpib expander isolator,
Computer Science Network,
network protocol data unit,
expander isolator,
communications data equipment
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