Data Acquisition I/O Modules Specifications

Form Factor


	Form Factor
	Your choices are...
	Integrated Circuit (IC)		Devices are integrated circuit (IC) chips that mount on printed circuit boards (PCBs).
	Printed Circuit Board (PCB)		Devices are printed circuit boards (PCBs) that attach to enclosures or plug directly into computer backplanes.
	Panel / Chassis Mount		Devices attach to a panel or bolt onto a chassis.
	Modular Bay / Slot System		Devices stack in modular bays or slots and can be interfaced to other units.
	Rack Mount		Devices are rack-mounted and fit inside enclosures such as a standard 19” telecommunications rack.
	DIN Rail		Devices mount on a standard DIN rail. DIN is an acronym for Deutsches Institut für Normung (DIN), a German national organization for standardization.
	Stand Alone		Devices are benchtop or floor-standing units with a full casing or cabinet and an integral interface.
	Other		Other unlisted form factors.
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Computer Bus


	Computer Bus
	Your choices are...
	CompactPCI		This is a high performance industrial bus that uses the electrical standards of the PCI bus packaged in a Eurocard. The specifications of the CompactPCI bus were developed and maintained by the PCI Industrial Computers Manufacturers Group (PICMG). It is used extensively in systems that require high speed transfer of data, such as data communication routers and switches, real-time machine control, real-time data acquisition, military systems, etc
	IBM Microchannel		The Microchannel bus was designed by IBM to replace the ISA bus. It is much faster, and is capable of Plug & Play (adding a card to a Microchannel computer does not change the interrupt and DMA settings on the card). These functions are done via software. Microchannel slots are available almost exclusively in IBM's PS/2® line.
	IEEE 1394 (Firewire®)		A companion to USB, IEEE 1394 is a very high-speed serial bus (400 Megabit - 1 Gigabit). It was designed to replace all external high-speed peripheral connections to personal computers, including hard disks, CD-ROM's, DVD's, graphics cards, high-speed scanners, direct video, monitors, etc.
	Industry Pack® Bus (IP)		Industry Pack® is a Mezzanine bus generally used to provide I/O capabilities to general purpose computer systems. It was conceived by Greenspring Computers, who maintain the specification. It has been adopted by a number of CPU manufacturers.
	ISA / EISA		Industry Standard Architecture. ISA is a standard for I/O buses that was set back in 1984 when IBM was the standard. The ISA bus can handle 16-bit data transfers at a clock speed of 8 MHz. It is also capable of handling memory under 16 MB. EISA, or Extended ISA, is an improvement over the ISA bus. It runs at 8 MHz, is capable of 32-bit data transfer, and can access all memory in the system.
	Mac PCI (Nubus)		Peripheral Component Interconnect. A local bus standard developed by the Intel® Corporation. PCI is used on newer versions of Apple's® Macintosh® line. Nubus was the expansion bus for Apple computers from the Macintosh II through the Performa® line.
	MIX Bus		Modular Interface eXtension. The MIX bus is a high performance stacking and communications interface to connect expansion modules to a VMEbus baseboard. The MIX bus supports 32-bit data transfers and 4 GB of memory addressing capability, as well as DMA transfers.
	Multibus (I & II)		Multibus is a modular computer-systems architecture used in embedded applications in telecommunications, medical-devices, manufacturing automation, networking, and other market areas.
	*PC/104 (PC/104-Plus, EBX)*		PC/104 gets its name from the desktop personal computers designed by IBM (PCs), and from the number of pins used to connect the cards together (104). PC/104 cards are much smaller than ISA-bus cards and stack together eliminating the need for a motherboard, back plane, and/or card cage. PC/104-Plus incorporates the PCI bus into the PC/104 form-factor for faster data transfer. EBX (Embedded Board eXpandable) defines a 5.75" x 8" form factor large enough to implement a powerful single-board computer. It supports PC/104 expansion.
	PCI		Peripheral Component Interconnect. PCI is a local bus system designed for high-end computer systems, such as the Pentium®. It transfers 32 or 64 bits of data at a clock speed of 33 MHz. The PCI bus supports 3 to 5 critical peripherals, which are either integrated directly onto the motherboard or added via expansion cards. The PCI bus fully supports cards developed for standard I/O buses.
	PCMCIA (PC Card)		PCMCIA devices (PC Cards) are credit-card-sized peripherals predominantly used in laptop computers. The PCMCIA adapter takes the place of a COM port on a standard bus. The card is plugged into a 68-pin host socket that is connected either to the motherboard or an expansion bus. An adapter then translates the PCMCIA signals into signals usable by the computer's bus.
	PXI Bus		PCI eXtensions for Instrumentation (PXI). This superset of CompactPCI adds timing and triggering functions, imposes requirements for documenting environmental tests, and establishes a standard Windows-based software framework.
	PMC Bus		The PMC Bus is actually a form factor, not a bus -- it is electrically the same as the PCI Bus, but the shape of the card and the bus connectors are different. Designed for rugged implementations, the PMC form factor provides a secure mounting platform for PMC VME mezzanine boards.
	STD Bus		Often referred to as the "Blue Collar Bus" because of its rugged design and small size, the STD Bus was originally designed for factory and industrial environments. It uses 16-bit architecture.
	SUN Sbus		Designed by Sun in 1989, the SBus board was the standard I/O inter-connect for Sun computers, which typically run under the Solaris or SunOS flavor of the UNIX operating system.
	USB		Universal Serial Bus. The 12 Megabit serial bus designed to replace low-to-medium speed peripheral device connections to Personal Computers, including keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc.
	VME Bus		VersaModule Eurocard. A 32-bit bus used in industrial, commercial and military applications. VME64 is an expanded version that provides 64-bit data transfer and addressing.
	VXI / MXI Bus		VME eXtensions for Instrumentation. Motorola developed the VME standard, with others, in the late 1970s. A standard for many electronic platforms, it defines electrical and mechanical backplane characteristics.
	Other		Unlisted, specialized, or proprietary configuration.
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Connection to Host


	Connection to Host
	Your choices are...
	Direct Backplane Interface		The circuit board installs directly into a computer motherboard or backplane.
	RS232		Interface between data terminal equipment and data communications equipment employing serial binary data interchange.
	RS422		RS422 is a balanced serial interface for the transmission of digital data. It was designed for greater distances and higher Baud rates than RS232.
	RS485		RS485 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The difference between RS422 and RS485 is that RS485 can be transformed into a multi-point application.
	USB		Universal Serial Bus. The standard serial bus for low-to-medium speed peripheral device connections to Personal Computers, including keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc.
	IEEE 1394 (Firewire®)		A companion to USB, IEEE 1394 is a very high-speed serial bus (400 Megabit - 1 Gigabit). It was designed to replace all external high-speed peripheral connections to personal computers, including hard disks, CD-ROM's, DVD's, graphics cards, high-speed scanners, direct video, monitors, etc.
	GPIB (IEEE 488, HPIB)		GPIB (General Purpose Interface Bus) is designed to connect computers, peripherals and laboratory instruments so that data and control information can pass between them. It is also known as IEEE 488 or HPIB, and is electrically equivalent to IEC 625 bus.
	SCSI		SCSI (Small Computer System Interface) is a parallel interface standard used by Apple Macintosh computers, PCs, and many UNIX systems for attaching peripheral devices to computers.
	TTL		Transistor-transistor logic, a common type of digital circuit in which the output is derived from two transistors. More commonly, however, TTL is used to designate any type of digital input or device.
	Parallel Interface		A channel capable of transferring more than one bit simultaneously; parallel communication protocols include GPIB / IEEE-488 / HPIB Protocol.
	Ethernet		A local-area network (LAN) protocol developed by Xerox Corporation in cooperation with DEC and Intel in 1976. Ethernet uses a bus or star topology and supports data transfer rates of 10 Mbps. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the CSMA/CD access method to handle simultaneous demands. It is one of the most widely implemented LAN standards.
	Modem		Modulator-demodulator. A modem is a device or program that enables a computer to transmit data over telephone lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem converts between these two forms.
	Radio / Telemetry		Communication from data acquisition device to host or storage unit via radio transmission.
	Other		Unlisted, specialized, or proprietary communication configuration.
	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.

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