Impediment RS-0800-LVD, User Manual

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Glossary
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Glossary
In glossary definition s, italics are used for items defined elsewhere in the glossary and bold is used for
the items shown in brackets after the main heading of the entry.
ASCII American Standard Code for Information Interchange. A 7-bit binary code (0's, 1's) used to
represent letters, numbers, and special characters such as $,!, and /. Supported by almost every
computer and terminal manufacturer.
Attribute Setting that controls access to a specific file. Often used to protect important files (such as
the Registry files) from accidental change or deletion. Set using the ATTRIB command in MS-DOS.
Backplane A printed circuit board incorporated in the RS-0800 chassis assembly to provide logic level
signal, and low voltage power distribution paths.
Bay The slot that a unit or media device fits into.
Bifurcated (power cord) Throughout this user guide, the term is used as the UK equivalent of the US
term furcated.
A bifurcated power cord is a branched cord joined together by a yoke.
Byte A group of binary digits stored and operated upon as a unit. A byte may have a coded value equal
to a character in the ASCII code (letters, numbers), or have some other value meaningful to the computer.
In user documentation, the term usually refers to 8-bit units or characters.
1 kilobyte (K) is equal to 1,024 bytes or characters; 64K indicates 65,536 bytes or characters.
Cable Throughout this RS-0800-LVD user guide this term is used in accordance with the preferred US
context of: “an insulated flexible electric wire used for the transmission of data signals between computer
equipment. (Note : Cable is UK preferred terminology for either a power cord or a data cable).
Character A representation, coded in binary digits, of a letter, number, or other symbol.
Characters Per Second A data transfer rate generally estimated from the bit rate and the character
length. For example, at 2400 bps, 8-bit characters with Start and Stop bits (for a total of ten bits per
character) will be transmitted at a rate of approximately 240 characters per second (cps).
Chassis A sheet metal enclosure incorporating a Backplane PCB and module runner system. The
chassis contains a number of 'Bays', each of which can accommodate a plug in module. There are eight
drive carrier bays at the front and six bays at the rear which house power supply, cooling and SCSI I/O
modules .
Configure To set up a hardware device and its accompanying software.
Data Communications A type of communications in which computers and terminals are able to
exchange data over an electronic medium.
Disk (drive, carrier, module) A SCSI disk drive mounted in an extruded aluminum carrier . You can
have up to eight disk drive carrier modules in each RS-0800-LVD enclosure.
Enclosure The chassis assembly which houses the plug-in modules that make up the RS-0800-LVD
storage subsystem.