IS 14441: keyboard

9 Pages·1997·1.1 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 14441 (1997): keyboard [LITD 16: Computer Hardware,
Peripherals and Identification Cards]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 14441 : 1997
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Indian Standard
NOITACIFICEPS ROF D-RAOBYEK
SCI
35.180;35.260.10

0 SIB 7991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH RAFAZ MARG
NEW IHLED
110002

September 7991 ecirP puorG 2
retupmoC lanoitceSerawdraH ,eettimmoC DTL 37
FOREWORD
sihT naidnI dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb eht retupmoC
erawdraH lanoitceS eettimmoC had neeb devorppa yb eht scinortcelE and noitacinummoceleT noisiviD
Council.
ehT evitcejbo fo this standard is ot yal nwod stnemeriuqer rof gnirusne ytilauq and ytilibailer fo sdraobyek
ot eb desu htiw lanosrep .sretupmoc ehT stimil rof suoirav stnemeriuqer evah neeb os nesohc as ot edivorp
mumixam ytilibixelf ot eht rengised and ot eht .rerutcafunam ehT standard is dengised ot evres eht cilbup
tseretni hguorht gnitanimile misunderstandings neewteb srerutcafunam and ,sresahcrup gnitatilicaf ytilibaegnahcretni
and tnemevorpmi fo ,stcudorp and assisting eht resahcrup ni gniniatbo htiw muminim yaled eht reporp tcudorp
rof ralucitrap .deen
elihW gniraperp this standard, assistance has neeb devired morf CQTS noitacificepS /RETJNMOC/CQTS/EOD
2192 noitacificepS‘ rof ,’draobyek issued yb CQTS etarotceriD fo tnemtrapeD fo .scinortcelE
roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc .htiw eht lanif eulav
devresbo ro ,detaluclac gnisserpxe eht tluser fo a .tset shall eb dednuor ffo ni ecnadrocca htiw SI :2 1~960 seluR‘
rof eht ffo~gnidnuor laciremun seulav ( revised )‘. ehT rebmun fo tnacifingis secalp deniater ni eht dednuor
ffo eulav dluohs eb eht emas as that fo eht deificeps eulav ni this standard.
IS 14441 : 1997
Indian Standard
NOITACIFICEPS ROF DRAOBYEK
1 SCOPE Table 1 Functional Performance
Requirements
1.1 sihT dradnats syal nwod lareneg dna ecnamrofrep
stnemeriuqer for sdraobyek ot eb desu htiw lanosrep )2elhhI’dna7.2.6,3.1.6.2.1.6.1.5sesualC(
.)CP(sretupmoc
2 REFERENCES Sl Nn. Characteristic Requirement
i) lausiV noitlimmase ehT draobyek llahs eb terf mart
ehT naidnI sdradnatS nevig ni xennA A are yrassecen pihsnamkrow .stcefed prahs
stcnujda ot siht .dradnats .segde .sehctarcs .skcin &\rrub
llA srenetsaf llahs eh der\i’t
3 TERMINOLOGY .ylreporp
ii) yeK levart llahS ,mrofinueb 3yllacipyt 5 -
3.1 roF the esoprup of siht ,dradnats the smret dna 5.0 mm
snoitinifed as ninevig SI : 1885 (Part 52 ) seires llahs
iii) gnitautcA ecrof llahS eb mrofinu dna ssel naht
.ylppa 09 g
4 GENERAL REQUIREMENTS lanoitiddA stnemeriuqer rof dehcated sdraobyek
)vi stceffE fo rewop ehT draobyek llahs teem eht
4.1 ehT tuoyal ofthe characters ebllahs of YTREWQ
snoitpurretni evoba lanoitcnuf ecnamrofrep
mrof retirwepyt( )tamrof as deificeps ni SI 114 12.
(test htiwgnola )CP stnemeriuqer .1( 2 dna 3 \lht‘fo
4.1.1 ehT draobyek llahs eb ylisae elbahcated morf )elbat retfa eht gnix\ollof
the lanosrep .retupmoc tI ebnac desuoh as part of CP :ecneuqes
or as a separate .tinu nI the rettal case, the draobyek )i ehttcennoC druob,\ek ot eht
CP
llahs eb detcennoc ot the CP hguorht delioc cord
)elbixelf( htiw a muminim htgnel of eno .retem ii) peeK eht rewop l!ctlws
’NO‘
4.1.2 tI llahs niatnoc etauqeda rebmun of syek htiw
iii) tpurretnI eht rewop ot eht
tneiciffus resu elbanifed .syek ,revewoH the lautca CP 001 semit ta eht etar 11(
rebmun of syek dneped nopu the noitanibmoc of etunimrepsnoitarepo6 hllv\
segaugnal that nac eb desu htiw the .metsys 05 tnecrep ytud elcyc
)vi kcehC lanoitcnuf -mr>itrep
4.1.3 ehT syek llahs eb lluf levart .epyt ti ,si ,revewoh etna
elbarised that the yek levart si .mrofinu
)v draobyeK :rellortnoc

4.2 ehT draobyek llahs operate no power devired morf llahsrellortnocdraobyekretupmoClanosrePehT elbapaceb

gnitpeccafo tupni dedivorp yb eht draobyek sa .swollof
the lanosrep .retupmoc
)a otuA taeper .erutaef
4.3 ehT dnegel noitcnuf of the syek llahs eb ylbiledni
)b ehT muminim yaled-emit for otuagnisingocer taeper
.dekram
ni esac fo elgnis yek snoitarepo llahs eb 004 .sm
_.
4.4 ehT ecafretni of the draobyek llahs dnopserroc )c owT yek tuo-kcol .erutaef
ot the ecafretni noitpo elbaliava htiw .CP )d :ecafretnI
i) dehcateD ~ 8 tib lellarap ecafretni ro laires
SPERFORMANCE REQUIREMENTS ecafretni ta muminim atad etar fo I 2. K duab
5.1 ehT draobyek llahs teem the lanoitcnuf ii) detargetnI - dennacs .decafretni
ecnamrofrep stnemeriuqer ni the ecneuqes nevig ni
elbaT 1.
IS 14441 : 1997
6 TESTS ( LQA ) llahs eb as agreed ot neewteb the rerutcafunam
dna the resahcrup dna llahs eb detceles morf
6.1 Cladsification of Tests
SI 10673.
6.1.1 Type Tests 6.2 latnemnorivnE Tests
ehT tests deificeps elbaTni 2 llahs etutitsnoc epyt tests
6.2.1 Free Fall
dna llahs eb deirrac tuo ni the ecneuqes denoitnem
.niereht ehT draobyek llahs eb detcejbus ot ( yeK gnicaf )pu
free llaf test at a thgieh of mm52 ni ecnadrocca htiw
6.1.1.1 Number of samples SI 9000 ( Part teS/7 4 ), rebmun of silaf gnieb 8
roF epyt tests, rebmun of selpmas llahs eb three of the ( 4 srenroc + 4 edges ) ni dekcapnu .noitidnoc
emas ,ledom epyt dna ekam ehtfi draobyek si detceles
6.2.2 Bump
ylbareferp at modnar morf a raluger noitcudorp .tol ehT
selpmas dluohs eb detubirtsid for suoirav tests as ehT draobyek llahs eb detcejbus ot pmub test ni
deificeps ni elbaT 2. ecnadrocca htiw SI 9 000 ( Part ceSl7 2 ), the rebmun
spmubfo gnieb 1000 dna htiw noitarelecca 40 g rednu
Table 2 Schedule of Type Tests packed snoitidnoc ni lamron .noitcerid
1.1.6sesuaIC( 1.1.1.6dna )
6.2.3 Vibration
pllotG
Test Clause No. of
ehT draobyek ni noitidnocdekcapnu htiw power ’FFO‘
Reference Sample(s)
llahs eb detcejbus ot noitarbiv test at a ycneuqerf of
0 i) kcehC rof lareneg 4 OI ot 55 Hz dna noitarelecca gI for 45 setunim no each
stnemeriuqer
sixa (X, Y, )Z ni ecnadrocca htiw SI 9000 ( Part 8 ).
ii) Test rof -mrofrep
ecna stnemeriuqer elbaT 1 3
6.2.4 Dry Heat
1 i) eerF llaF 1.26
ehT draobyek ni dekcapnu noitidnoc htiw power ‘FFO‘
ii) pmuB 2.2.6 1
llahs eb detcejbus ot yrd heat test of ytireves of C°55
2 i) noitarbiV 3.2.6 for ,16 sruoh ni ecnadrocca htiw 0009’SI ( Part 31
ii) yrD taeh 4.2.6
Set 5 ).
iii) taeh-pmaD 5.2.6 1
)vi dloC 6.2.6 6.2.5 Damp Heat ( Cyclic > Test
3 gnitarepO efil 3.6 1
ehT draobyek ni dekcapnu noitidnoc htiw power ’FFO‘
llahs eb detcejbus ot pmad heat cilcyc test ni ecnadrocca
6.1.1.2 Criteria for conformity htiw SI 9000 ( Part teS/S 1 dna 2 ), at a erutarepmet
of C°04 dna a evitaler ytidimuh ton ssel naht 90 tnecrep
erehT llahs eb on eruiiaf ni yna of the epyt tests. nI
for two .selcyc
case of ,eruliaf eciwt the rebmun of selpmas llahs eb

nekat dna detcejbus ot lla the tests. No eruli af llahs eb 6.2.6 Cold Test
dettimrep ni the retests.
ehT draobyek noitidnocdekcapnuni htiw power ’FFO‘
6.1.2 Routine Tests llahs eb detcejbus ot dloc test of ytireves of C°01 for
2 h ni ecnadrocca htiw SI 9000 ( Part teS/2 4 ). ehT
ehT gniwollof llahs etutitsnoc enituor :stset
noitarud of yrevocer llahs eb 1 ot 2 .sruoh nI order 10
)i gnikcehC of noitarepo of lla syek gnisu diova ,noitasnednoc tnempiuqe llahs eb thguorb ot
lanosrep- ,retupmoc dna tneibma erutarepmet ni a dellortnoc tnemnorivne
)ii gnikcehC of ecnamrofrep stnemeriuqer
6.2.7 retfA each latnemnorivne test, gniwollof tests
gnidrocca ot lS No. 1 dna 2 of elbaT 1.
llahs eb deirrac tuo no (the tested) :draobyek
6.1.3 Acceptance Tests a) lausiV noitanimaxe lS( No. 1 of elbaT 1). dna
)b Earth egakael tnerruc test gnidrocca ot 5.2 of
ehT gniwollof llahs etutitsnoc ecnatpecca :stset
SI 13252.
)i ecnamrofreP stnemeriuqer gnidrocca ot lS
No. 1,2 dna 5 of elbaT 1, dna 6.3 Operating Life Test
ehT draobyek llahs eb powered no dna lla syek llahs
)ii gnikcehC of noitarepo of lla syek for rieht
eb operated for 1 000 snoitarepo each. at the rate of
dednetni .snoitcnuf
150 ot 200 snoitarepo per .etunim retfA the test. lla
ehT gnilpmas nalp dna ecnatpeccA ytilauQ leveL the syek llahs mrofrep rieht .snoitcnufdednetni
3
SI 14441 : 1997
7 LAUNAMNOITCURTSNIDNAGNITAREPO 4 s’rerutcafunaM roeman ,kram-edart
b) ledoM noitangised and laires ,rebmun and
7.1 An gnitarepo noitcurtsni manual gniniatnoc
noitamrofni gnitaler ot ,noitallatsni ,noitarepo enituor cl yrtnuoC fo .erutcafunam
ecnanetniam and ytefas snoituacerp shall eb edam
8.2 eboslayamdraobyekehT ehthtiwdekram dradnatS
elbaliava no dnamed htiw hcae .draobyek ehT
Mark.
rerutcafunam dluow ylralucitrap yficeps eht lacitirc
stnenopmoc rof hcihw etauqeda erac deen ot eb nekat 8.2.1 ehT esu fo eht dradnatS Mark is denrevog yb
ot erusne reporp tnemecalper at eht emit fo .gnicivres eht snoisivorp fo
Bureau of Indian Standards Act.
and eht seluR and snoitalugeR edam .rednuereht
1986
8 GNIKRAM sliateD fo snoitidnoc rednu hcihw a ecnecil rof eht esu
fo eht dradnatS Mark yam eb detnarg ot srerutcafunam
8.1 hcaB llahsdraobyek eb ylbigel ylbilednidna dekram ro srecudorp yam eb deniatbo morf eht uaeruB fo naidnI
htiw tsaelta eht :gniwollof Stamlards.
ANNEX A
( Clause 2 )
TSIL FO NAIDNIDERREFER SDRADNATS
SI No. Title SI No. Title
1885 lacinhcetortcelE -acov ,elcyc and noitceS 2
traP( teS/25 2 ot )51 yralub : traP 52 Data 12+12 h elcyc
gnissecorp
traP( teS/7 )2 : 1979 traP 7 tcapmI ,tset
noitceS 2 pmuB
9000 cisaB latnemnorivne
gnitset serudecorp rof traP( teS/7 )4 : 1979 traP 7 tcapmI ,tset noitceS
cinortcele and lacirtcele 4 eerF llaf
:smeti
traP( )8 : 1981 traP 8 noitarbiV

traP( teS/2 )4 : 1977 traP 2 dloC ,tset )ladiosunis( tset

noitceS 4 dloC tset rof taeh
10673 : 1983 gnilpmaS plans and
dissipating smeti htiw
serudecorp rof noitcepsni
gradual egnahc fo
yb setubirtta rof cinortcele
erutarepmet
smeti
traP( teS/3 )5 : 1977 traP 3 yrD taeh ,tset 11412 : 1986 draobyeK rof noitamrofni
noitceS 5 yrD taeh tset gnissecorp using tib-7
rof taeh dissipating smeti dedoc retcarahc tes
htiw gradual egnahc fo
erutarepmet 13252 : 1992 ytefaS fo noitamrofni
ygolonhcet tnempiuqe
traP( teS/S 1 and )2 : traP 5 Damp taeh )cilcyc( gnidulcni lacirtcele
1981 ,tset noitceS 1 16+8 h business tnempiuqe
Bureau of Indian Standards
SIB is a yrotutats noitutitsni dehsilbatse rednu eht Bureau oflndian sdrudnhS Act, 1986 ot etomorp suoinomrah
tnempoleved fo eht seitivitca fo ,noitazidradnats gnikram and ytilauq noitacifitrec fo sdoog and gnidnetta ’ot
detcennoc srettam ni eht .yrtnuoc
Copyright
SIB has eht thgirypoc fo all its .snoitacilbup oN trap fo eseht snoitacilbup yam eb decudorper ni yna mrof tuohtiw
eht roirp noissimrep ni gnitirw fo .SIB sihT seod ton edulcerp eht eerf ,esu ni eht esruoc fo gnitnemelpmi eht
standard, fo yrassecen ,sliated hcus as slobmys and ,sezis epyt ro edarg .snoitangised seiriuqnE gnitaler ot
thgirypoc eb desserdda ot eht rotceriD ,)snoitacilbuP( .SIB
Review of Indian Standards
stnemdnemA era issued ot standards as eht deen sesira no eht basis fo .stnemmoc era’sdradnatS osla deweiver
;yllacidoirep a standard gnola htiw si~stnemdnema demriffaer nehw hcus weiver setacidni that on segnahc era
;dedeen fi eht weiver setacidni that segnahc era ,dedeen ti is nekat up rof .noisiver sresU fo naidnI Standards
dluohs niatrecsa that yeht era ni noissessop fo eht tsetal stnemdnema ro noitide yb gnirrefer ot eht tsetal issue
fo SIB‘ ’koobdnaH and sdradnatS‘ : ylhtnoM .’snoitiddA
sihT naidnI dradnatS has neeb depoleved morf toD : .oN DTL 37 ( 1557 )
Amendments Issued Since Publication
dnemA .oN etaD fo eussI txeT detceffA
BUREAU OF INDIAN STANDARDS
:sretrauqdaeH

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