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GPIB Controllers and GPIB Interface Boards Specifications

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GPIB Network Function
The GPIB Board can play the role of a controller (manages and governs bus communications) or of an interface (serves as a bridge between a GPIB device or instrument and a computer bus).



   GPIB Network Function:      The role to be played on the GPIB network.
   Your choices are...
 
      
 
   Interface
 
     Interfaces to GPIB network.  It is used to communicate (transfer data) between the computer where the GPIB Board is plugged in and another device or instruments via a port or  a bus.  Interfaces are used when there is no need for a controller in the system.  An example of this is a configuration where there is a device that is always a Talker (talk-only-device) that is connected to one or more devices that are always Listeners (listen-only-devices).  Every talk-only-device and listen-only-device requires an interface and not a controller.
 
   Controller
 
     Controls a GPIB network. Manages the data flow on the GPIB by sending commands to all devices in the network.  The controller controls the data and commands transfer between talkers and listeners in the GPIB network.  A Controller is need when it is necessary to be able to change the active Talker or Active Listener.
 
   Search Logic:      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.
GPIB Protocol Compatibility




   GPIB Protocol Compatibility:       
   Your choices are...
 
      
 
   IEEE 488.1 Compatible
 
     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.
 
   IEEE 488.2 Compatible
 
     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.
 
   HS488 Compatible
 
     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.
 
   Search Logic:      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.
Bus / Interface Type
Computer bus or interface where the GPIB Board will connect to the computer.



   Bus / Interface Type:       
   Your choices are...
 
      
 
   PCI
 
     Peripheral component interconnect (PCI) is a local bus system designed for high-end computer systems. PCI buses transfer 32 or 64 bits of data at a clock speed of 33 MHz. They also support 3 to 5 critical peripherals, which are either integrated directly onto the motherboard or added via expansion cards. PCI buses fully support cards that were developed for standard I/O buses.
 
   ISA / EISA
 
     Industry standard architecture (ISA) buses can handle 16-bit data transfers at a clock speed of 8 MHz. They are also capable of handling memory under 16 MB. Extended ISA (EISA) is an enhanced version of the ISA bus. EISA buses run at 8 MHz, are capable of 32-bit data transfers, and can access all memory in the system.
 
   PC/104 (PC/104-Plus, EBX)
 
     PC/104 derives its name from the acronym for personal computers (PC) and the number of pins used to connect cards (104). PC/104 cards are much smaller than ISA bus cards and stack together, eliminating the need for a motherboard, backplane, and/or card cage. PC/104-Plus combines the PCI bus with the PCI/104 form factor for faster data transfers. Embedded board expandable (EBX) is a small (5.75” x 8”) form factor for single-board computers that supports PC/104 expansion.  
 
   MCA
 
     The MCA bus, which was designed to replace the ISA bus, uses IBM's microchannel architecture (MCA). It is capable of plug-and-play because adding a card to a microchannel computer does not change the interrupt and DMA settings on the card. The MCA bus was used almost exclusively with IBM's PS/2 product line, but is now discontinued.
 
   Nubus (Mac PCI)
 
     NuBus was the expansion bus for versions of the Macintosh® computer starting with the Macintosh II and ending with the Performa. Macintosh is a registered trademarks of Apple Computers. Current Macintosh computers use the PCI bus (Mac PCI).
 
   NEC Pcbus
 
     The NEC Pcbus was developed by NEC Technologies®.
 
   Sbus
 
     SBus was developed by Sun Microsystems for use with SPARC®-based computers. SPARC, an acronym for scalable processor architecture, and is a registered trademark of SPARC International, Inc. Though standardized as IEEE 1496, the SBus is no longer used. It has been replaced by peripheral component interconnect (PCI).
 
   PCMCIA (PC Card)
 
     PCMCIA devices or PC cards are credit card-sized peripherals used mainly in laptop and notebook computers. They plug into a 68-pin host socket that is connected either to the motherboard or an expansion bus. An adapter takes the place of a COM port and translates the PCMCIA signals into a format that is usable by the computer’s bus.

PC cards adhere to standards developed by the Personal Computer Memory Card International Association (PCMCIA). Originally, these standards were designed for adding memory to portable computers; however, standards now apply to many types of devices. There are three types of PC cards: Type I, Type II, and Type III. All types have the same width (54 mm) and length (85.6 mm), but vary in thickness.
 
   PMC
 
     PCI mezzanine card (PMC) is a form factor, not a bus. It is electrically equivalent to the PCI bus, but has a different shape and bus connectors. PMC is designed for rugged applications and provides a secure mounting platform for VME mezzanine boards. It is connected as a daughter card to a special connector on a PCI board as a peripheral device.
 
   PXI
 
     PCI extensions for instrumentation (PXI) is a superset of CompactPCI that adds timing and triggering functions, imposes requirements for documenting environmental tests, and establishes a standard Windows®-based software framework. Windows is a registered trademark of the Microsoft Corporation.
 
   MUTLIBUS® (I & II)
 
     MULTIBUS® is a popular, modular computer-systems architecture used in embedded applications in telecommunications, manufacturing automation, and networking. The original 16-bit design is referred to as MULTIBUS I. The current 32-bit version is called MULTIBUS II or IEEE 1296. MULTIBUS is a registered trademark of Intel Corporation. 
 
   STD
 
     STD is often called the "blue collar bus" because of its rugged design and use in industrial and process control applications. There are three STD bus types: STD Z80, STD80, and STD 32. The STD Z80 bus and the STD 80 bus use a 56-pin backplane with 0.125" contact spacing for card interconnection. The STD 32 Bus provides a 32-bit wide data bus to support 8, 16, and 32-bit data transfers. Dynamic bus sizing, which varies the data path size depending on the requirements of the peripheral card being addressed, gives the STD 32 bus added flexibility.
 
   VMEbus
 
     VersaModule Eurocard bus (VMEbus) is a popular, 32-bit bus used in industrial, commercial and military applications. The VMEbus is based on the VME standard, which defines mechanical specifications such as board dimensions, connector specifications and enclosure characteristics, as well as the electronic specifications for sub-bus structures, signal functions, timing, signal voltage levels, and master/slave configurations.  The VMEbus uses 3U and 6U Eurocards, rugged circuit boards that provide a 96-pin plug instead of an edge connector for durability. Several VMEbus varieties are available. 
 
   VXI / MIX
 
     VME extensions for instrumentation (VXI) is an electrical and mechanical standard used mainly with automatic test equipment (ATE). VXI allows equipment from different vendors to work together in a common control and packaging environment.

Modular interface extension (MIX) is a high-performance stacking and communications interface for connecting expansion modules to a VMEbus baseboard. The MIX bus supports 32-bit data transfers and DMA transfers. It also provides 4 GB of memory addressing capability.
 
   CompactPCI (cPCI)
 
     Compact PCI (cPCI) is a high-performance industrial bus that uses the electrical standards of the PCI bus and is packaged in a Eurocard. Specifications for the CompactPCI bus are developed and maintained by the PCI Industrial Computers Manufacturers Group (PICMG). cPCI buses are used extensively in systems that require high speed data transfers. Examples include data communication routers and switches, real-time machine control, real-time data acquisition, military systems, etc.
 
   SCSI
 
     Small computer systems interface (SCSI) is an intelligent I/O parallel peripheral bus with a standard, device-independent protocol that allows many peripheral devices to be connected to the SCSI port. A single SCSI bus can drive up to eight devices or units: the host adapter or controller, and seven other devices. Each device is assigned a different SCSI ID, ranging from 0 to 7.  SCSI formats include SCSI-1, SCSI-2, SCSI-3, Wide SCSI, Fast SCSI, Wide Fast SCSI, Ultra SCSI, Ultra2 SCSI, Ultra3 SCI (Ultra160), Ultra 320 SCSI, and Ultra640 SCSI.
 
   Other
 
     Other unlisted, specialized, or proprietary buses or interface types.
 
   Search Logic:      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.
Operating System Support




          Has drivers/interface for these operating systems:
   Your choices are...
 
      
 
   Windows® 2000
 
     Operating system developed by Microsoft Corporation. It uses a graphical user interface to control the system.
 
   Windows® ME
 
     Operating system developed by Microsoft Corporation.
 
   Windows® NT
 
     Operating system developed by Microsoft Corporation.
 
   Windows® 95/98
 
     Operating system developed by Microsoft Corporation.
 
   Windows® 3.1x
 
     Operating system developed by Microsoft Corporation.
 
   DOS
 
     Disk Operating System is a command-line operating system developed by Microsoft Corporation.
 
   Sun™ OS
 
     A Unix-based operating system environment developed by Sun Microsystems. SunOS runs on many workstations from vendors other than SUN.
 
   MAC® OS
 
     Macintosh operating system.
 
   Solaris™
 
     Solaris is a Unix-based operating environment that includes the SunOS operating system.
 
   LynxOS®
 
     LynxOS® is a real-time operating system (RTOS) based on the open source Linux® OS. Developed by LynuxWorks™, it is used extensively in embedded systems.
 
   UNIX
 
     A multi-user, multitasking operating system developed at Bell Labs in the early 1970s. The official UNIX trademark is held by The Open Group.
 
   QNX®
 
     QNX® is a micro-computer operating system developed by QNX Software Systems, Ltd. It is used to controlling real-time operations including assembly lines, position monitors, chemical plants, and industrial robots.
 
   VxWorks®
 
     A real time operating system (RTOS) from Wind River Systems.
 
   Linux®
 
     An open-source implementation of UNIX used on many platforms, including Intel-based PCs, Macintosh, SPARC workstations, etc.
 
   IBM OS/2®
 
     OS/2® is a DOS and Windows® compatible operating system developed originally by Microsoft Corporation and IBM, but sold and managed solely by IBM.
 
   NetWare®
 
     A local-area network (LAN) operating system developed by Novell Corporation that runs on many types of LANs (Ethernet, Token-Ring, etc.)
 
   Other
 
     Unlisted operating systems such as pSOS, OS/9, OS/9000, etc.
 
   Search Logic:      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.
Ports / Throughput




   Number of Ports:
 
     The number of channels in the device.  A multiple channel controller, for instance, can control more than one GPIB network.
 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Max GPIB Data Transfer Rate:
 
     This is the IEEE Bus Transfer Rate as specified in IEEE 488.1.  If the device is HS488 compatible, then the data rate generally will be higher.
 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
Other Features




   Direct Memory Access (DMA)?
 
     Direct Memory Access (DMA) is a technique for transferring data from a device to main memory without passing it through the CPU.  This technique allows the transfer of data to and from devices much more quickly than without a DMA channel.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   FIFO Buffer?
 
     The First In, First Out (FIFO) buffer is used to temporarily store acquired data. The data is temporarily stored until it can be transferred to system memory or to another device. By buffering the data, the GPIB and the host bus can access the data at the same time rather than one bus waiting for the other to complete a cycle.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   CE / FCC Certified?
 
     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).
 
   Search Logic:      "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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