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`INTEL-1009
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`IEEE Std 100-1996
`
`IEEE Std 100-1996
`
`LIBRARY
`NOV O 5 1998
`LIBRARY
`
`NOV 8 5 1998
`BROW~I & BAIN
`
`BROWN&BAIN
`The IEEE Standard Dictionary of
`Electrical and Electronics Terms
`The IEEE Standard Dictionary of
`Electrical and Electronics Terms
`Sixth Edition
`Sixth Edition
`
`Standards Coordinating Committee 10, Terms and Definitions
`Standards Coordinating Committee 10, Terms and Definitions
`Jane Radatz, Chair
`Jane Radatz, Chair
`
`This standard is one of a number of information technology dictionaries being developed by standards
`This standard is one of a numberof information technology dictionaries being developed by standards
`organizations accredited by the American National Standards Institute. This dictionary was developed
`organizations accredited by the American National Standards Institute. This dictionary was developed
`under the sponsorship of voluntary standards organizations, using a consensus-based process.
`under the sponsorship of voluntary standards organizations, using a consensus-based process.
`
`ISBN 1-55947-633-b
`
`ISBN 1-55937-833-6
`
`Wi
`
`900 0 0
`
`:
`
`9"781559"578558
`
`a
`9 78 1559 378338
`
`

`

`interlacing impedance voltage , , ,
`
`544
`
`intermediate frequency
`
`interlocking (interlocking plant) (railways) An arrangement
`which the adjacen t lines be long to different fields . See also :
`te lev ision.
`(BT)
`(34]
`of apparatus in which various devices for controlling track
`interlacing impedancevoltage .. .
`intermediate frequency
`544
`switches, signals, and related app liances are so interconnected
`interlacing impedance voltage of a Scott-connected trans(cid:173)
`th at their movements must succeed one another in a prede(cid:173)
`former (power and distribution transformers) The inter(cid:173)
`interlocking (interlocking plant) (railways) An arrangement
`which the adjacent lines belong to different fields. See also:
`television.
`(BT)
`[34]
`termined order, and for which interlocking rul es are in effect.
`of apparatus in which various devices for controlling track
`lacing impedance vo ltage of Scott-connected transformers is
`switches, signals, and related appliances are so interconnected
`Note: It may be operated manually or automaticall y.
`interlacing impedance voltage of a Scott-connected trans-
`th e single- phase vo ltage app lied from the midtap of the main
`that their movements must succeed one anotherin a prede-
`former (power and distribution transformers) The inter-
`(EEC/PE) ( 119]
`transform er winding to both ends, connected together, wh ich
`termined order, and for which interlocking rulesare in effect,
`lacing impedance voltage of Scott-connected transformersis
`interlocking deactivating means (defeater) A manually actu(cid:173)
`is suffi cient to circu late in the supply lines a current equal to
`Note: It may be operated manually or automatically.
`the single-phase voltage applied from the midtap of the main
`the rated three-phase line current. The current in each half of
`ated prov ision for temporaril y rendering an interlocking de(cid:173)
`(EEC/PE)
`[119]
`transformer winding to both ends, connected together, which
`vice ineffective, thus permitting an operation that would
`the winding is 50% of this value. The per-unit or percent
`interlocking deactivating means (defeater) A manually actu-
`is sufficient to circulate in the supply lines a current equal to
`otherwise be prevented. For example, when app lied to ap(cid:173)
`interlac ing resistance is the measured watts expressed on the
`the rated three-phase line current. The current in each half of
`ated provision for temporarily rendering an interlocking de-
`paratus such as combination controllers or control centers, it
`base of the rated kV A of the teaser winding. The per-unit or
`vice ineffective,
`thus permitting an operation that would
`the winding is 50% of this value. The per-unit or percent
`refers ro voiding of the mechanical interlock ing mechanism
`percent interlacing impedance is the measured vo ltage ex(cid:173)
`interlacing resistance is the measured watts expressed on the
`otherwise be prevented. For example, when applied to ap-
`between the externally operable disconnect device and the
`pressed on the base of the teaser-voltage.
`paratus such as combination controllers or control centers, it
`base of the rated kVA of the teaser winding. The per-unit or
`refers to voiding of the mechanical interlocking mechanism
`enclosure doors to permit entry into the enclosure while the
`(PE) C57 .J 2.80- 1978r
`percent interlacing impedance is the measured voltage ex-
`between the externally operable disconnect device and the
`pressed onthe base of the teaser-voltage.
`di sconnect device is closed. See also: electric controller.
`interLATA In the United States, a collection of circuits that
`(PE) C57.12.80-1978r
`enclosure doors to permit entry into the enclosure while the
`(IA) (60]
`cross local access and transport area boundaries and are
`disconnect device is closed. See also: electric controller.
`interLATA In the United States, a collection of circuits that
`interlocking limits (interlocking territory) (railways) An ex(cid:173)
`passed onto an interexchange carrier. See also: intraLATA.
`(IA)
`[60]
`cross local access and transport area boundaries and are
`(C) 610.7-1995
`pression used to designate the trackage between the opposing
`interlocking limits (interlocking territory) (railways) An ex-
`passed onto an interexchangecarrier. See also: intraLATA.
`home signals of an interlocking. See also: interlocking.
`interleave (1) To arrange parts of one sequence of th ings or
`(C) 610.7-1995
`pressionused to designate the trackage between the opposing
`(EEC/PE) [l l 9]
`events so that they alternate with parts of one or more other
`homesignals of an interlocking. See also, interlocking.
`interleave (1) To arrange parts of one sequence of things or
`sequences of things or events and so that each sequence re(cid:173)
`interlocking machine (railways) An assemblage of manuall y
`(EEC/PE)
`[119]
`events so that they alternate with parts of one or more other
`tains its identity.
`(20), (85)
`(C)
`operated levers or equivalent devices, for the control of sig(cid:173)
`sequences of things or events and so that each sequence re-
`interlocking machine (railways) An assemblage of manually
`(2) (software) To alternate the elements of one sequence with
`tains its identity.
`(C)
`[20], [85]
`nals, switches, or other units, and including mechanical or
`operated levers or equivalent devices, for the control of sig-
`(2) (software) To alternate the elements of one sequence with
`nals, switches, or other units, and including mechanical or
`the elements of one or more other sequences so that each
`circuit locking, or both, to establish proper sequence of move(cid:173)
`the elements of one or more other sequences so that each
`circuit locking, or both, to establish proper sequence of move-
`sequence retains its identity; for example, to alternately per(cid:173)
`ments. See also: interlocking.
`(EEC/PE) (119]
`sequence retains its identity; for example, to alternately per-
`ments. See also; interlocking.
`(EEC/PE)
`[119]
`form the steps of two di fferent tasks in order to achieve con(cid:173)
`interlocking plant See: interlocking.
`form the steps of two different tasks in order to achieve con-
`interlocking plant See: interlocking.
`current operation of the tasks.
`(C) 610. 12- 1990
`interlocking relay (railways) A relay that has two independent
`current operation ofthe tasks.
`(C) 610.12-1990
`interlocking relay (railways) A relay that has two independent
`(3) To arrange parts of one sequence of things or events so
`magnetic circu its with their respective armatures so arranged
`(3) To arrange parts of one sequence of things or events so
`magnetic circuits with their respective armatures so arranged
`that they alternate with parts of one or more other sequences
`th at the dropping away of either annature prevents the other
`that they alternate with parts of one or more other sequences
`that the dropping awayofeither armature prevents the other
`of the same nature such that each seq uence retains its identity;
`armature from dropping away to its full stroke.
`of the samenature such that each sequenceretainsits identity;
`armature from dropping awaytoits full stroke.
`For example, to ass ign successive add resses to physicall y sep(cid:173)
`For example, to assign successive addresses to physically sep-
`(EEC/PE) (119]
`(EEC/PE)
`[119]
`arated storage locations in such a way as to red uce access
`arated storage locations in such a way as to reduce access
`interlocking signals (railways) T he fixed signals of an inter-
`interlocking signals (railways) The fixed signals of an inter-
`time,
`(C) 610,10-1994
`time.
`(C) 610.10-1994
`locking.
`(EEC/PE)
`[119]
`locking.
`(EEC/PE) ( I 19)
`interleaved array In PL/1, an array whose namerefers to non-
`interleaved array In PL/ I , an array whose name refers to non-
`interlocking station (railways) A place from which an inter-
`interlocking station (railways) A place from which an inter-
`contiguous storage.
`(C) 610.5-1990
`. contiguous storage.
`(C) 610.5-1990
`locking is operated.
`(EEC/PE)
`[119]
`locking is operated.
`(EEC/PE) (119)
`interleaved memory A type of memory in which two or more
`interleaved memory A type of memory in wh ich two or more
`interlocking territory See: interlocking limits.
`interlocking territory See: interlocking li mits.
`separate arrays are usedto fill alternate accesses in such a
`separate arrays are used to fill alternate accesses in such a
`interlock relay A relay with two or more armatures having a
`way as to speed the average access time of the memory. For
`interlock relay A relay with two or more arm atures having a
`way as to speed the average access time of the memory. For
`mechanical linkage, or an electric interconnection, or both,
`example, the odd addressesare all in one memory array and
`mechanical li nkage, or an electric interconnection, or both,
`example, the odd addresses are all in one memory array and
`whereby the position of one armature permits, prevents, or
`the even addressesare in a second.
`(C) 610.10-1994
`whereby the position of one a1mature permits, prevents, or
`causes motion of another armature. See also: relay.
`the even addresses are in a second .
`(C) 610.10- 1994
`interleaved windings (power and distribution transformers)
`causes motion of another armature. See also: relay.
`(EEC)
`[87]
`interleaved windings (power and distribution transformers)
`(of a transformer) An arrangement of transformer windings
`(87)
`(EEC)
`intermateability The capability for units of equipmentto fit
`( of a transformer) An arrangement of transformer windings
`where the the primary and secondary windings, and the ter-
`intermateability The capabi li ty for units of eq uipment to fit
`together mechanically but not necessarily work together elec-
`where the the primary and second ary windings, and the ter(cid:173)
`tiary windings, if any, are subdividedinto disks (or pancakes)
`trically.
`(BA/C)
`14536-1995
`together mechanicall y but not necessarily work together elec(cid:173)
`or layers and interleaved on the same core.
`tiary windings, if any, are subdivided into disks (or pancakes)
`trically.
`(BA/C) 14536- 1995
`intermateable Mechanical compatibility between modules with
`(PE) CS57.12.80-1978r
`or layers and interleaved on the same core.
`the backplane, card cage, and system into which they are
`intermateable Mechanical compatibility between modules with
`interleaving The process of alternating two or more operations
`(PE) C57 .12.80-l978r
`inserted, Sometimes includes compatibility in the assignment
`the backplane, card cage, and system into which they are
`or functions through the overlapped use of a computerfacil-
`interleaving The process of alternating two or more operations
`of powerand groundpins.
`(BA/C) 896.2-1991
`ity. See also: interleaved memory.
`(C) 610.10-1994
`inserted. Sometimes includes compatibility in the assignment
`or functions through the overlapped use of a computer fac i 1-
`intermediate contacts (of a switching device) Contacts in the
`interlock (1) Device that permits equipment or controls to op-
`of power and ground pins.
`(BA/C) 896.2- 1991
`ity . See also: interl eaved memory.
`(C) 610.10- 1994
`main circuit that part after the main contacts andbefore the
`erate only after other conditions have been fulfilled.
`intermediate contacts (of a switching device) Contacts in the
`arcing contacts have parted.
`interlock (1) Dev ice that permits equipmen t or controls to op(cid:173)
`(PE)
`1020-1988r
`main circuit that part after the main contacts and before the
`(PE/SWG) C37.100-1992, C57.12.44-1994
`erate only after other conditions have been fulfilled .
`(2) A device actuated by the operation of some other device
`arcing contacts have parted.
`intermediate current ratings (of distribution fuse links) A
`(PE) 1020- l988r
`with whichit is directly associated, to govern succeeding op-
`(PE/SWG) C37.100-J992, C57.12.44-1994
`erations of the same or allied devices. Note: An interlock
`series of distribution fuse-link ratings chosen fromaseries of
`(2) A device actuated by the operation of some other device
`preferred numbers that are spaced between the preferred cur-
`intermediate current ratings (of distribution fuse links) A
`system is a series of interlocks applied to associated equip-
`with which it is directly associated, to govern succeeding op(cid:173)
`rent ratings, but may not provide coordination therewith. Co-
`ment in such a manner asto preventor allow operation of the
`series of distribution fuse-link ratings chosen from a series of
`erations of the same or allied devices. Note: An interlock
`ordination between adjacent intermediate ratings may be se-
`equipment only in a prearranged sequence. Interlocks are
`preferred numbers that are spaced between the preferred cur(cid:173)
`system is a seri es of interlocks applied to associated equip(cid:173)
`classified into three main divisions; mechanical
`interlocks,
`cured to the same degree as between adjacent preferred
`rent ratings, but may not provide coordination therew ith . Co(cid:173)
`ment in such a manner as to prevent or allow operation of the
`currentratings.
`(PE/SWG) ©37.40-1993
`electrical interlocks, and key interlocks, based on the type of
`ordin ation between adjacent intermed iate ratings may be se(cid:173)
`equipment only in a prearranged sequence. Interlocks are
`interconnection between the associated devices.
`intermediate datatype Any ofthe basic datatypes in termsof
`cured to the same degree as between adjacent preferred
`classified into three main divisions: mechanical interlocks,
`(PE/SWG) C37.100-1992, C57.12.80-1978r
`which the other, substantive datatypes of the interface are
`current ratings.
`(PE/SWG) C37.40-1993
`e lectrical interlocks, and key interlocks, based on the type of
`defined.
`(C/PA)
`1224-1993, 1327-1993, 1328-1993
`(3) To prevent one device from interfering with another. For
`intermediate datatype Any of the basic datatypes in terms of
`interconnection between the associated devices .
`example, to lock the switches to prevent manual movement
`intermediate distributing frame (telephone switching sys-
`which the other, substantive datatypes of the interface are
`(PE/SWG) C37.100- 1992, C57. 12.80-l978r
`of the switches while a program is executing.
`tems) A frame where crossconnections are made only be-
`(C) 610.10-1994
`(3) To prevent one device from interfering with another. For
`defined.
`(C/PA) 1224- 1993, 1327- 1993, 1328- 1993
`tweenunits of central office equipment.
`(COM) 312-1977w
`example, to lock the switches to prevent manual movement
`interlock bypass A commandto temporarily circumventa nor-
`intermediate distributing frame (telephone switching sys(cid:173)
`mally provided interlock,
`(EEC/TA)
`[61], [74]
`of the sw itches while a program is executing.
`intermediate frequency (IF) (1) (nonlinear, active, and non-
`tems) A frame where crossconnections are made only be(cid:173)
`interlocked sequence A fixed sequence ofevents in which one
`reciprocal waveguide components) (general). A frequency
`(C) 610.10- 1994
`tween units of central office equipment.
`event in the sequence must occur before the next event may
`to which a signal waveis shifted locally as an intermediate
`interlock bypass A command to temporaril y circumvent a nor-
`(COM) 3 l2- 1977w
`occur.
`(IM) 488.1-1987r
`(MTT)
` 457-1982w
`step in transmission or reception.
`(EEC/IA) (6 I] , [74)
`ma ll y provided interlock.
`intermediate frequency (IF) (1) (nonlinear, active, and non(cid:173)
`interlocked sequence A fixed seq uence of events in which one
`reciprocal waveguide components) (general). A frequency
`event in the sequence must occur before the next event may
`to which a signal wave is shifted locally as an intermedi ate
`(IM) 488. J - l 987r
`occur.
`step in transmission or reception.
`(MTT) 457- I 982W
`
`
`
`