IS 14896: Personal Computer

10 Pages·2001·1.1 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 14896 (2001): Personal Computer [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 14896:2001
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Indian Standard
PERSONAL COMPUTER — SPECIFICATION
ICS 35.160

C)BIS 2001
BUREAU OF IN DIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

Febnmn 2001 IMce Group 2
Computer Hardware Sectional Committee, LTD 37
FOREWORD
This Indian Standard wasadopted bytheBureau of Indian Standards, after thedraft finalized bytheComputer
Hardware Sectional Committee had been approved by the Electronics and Telecommunication Division
Council.
The objective of this standard isto laydown performance requirements for ensuring quality and reliability of
personal computer (PC). This standard is designed to serve public interest through eliminating any
communication gapbetween the manufacturers andthepurchasers andalsofacilitating interchangeability and
improvement ofproducts and10provide assistance tothepurchaser inobtaining theappropriate product forhis
particular need.
The technical committee responsible for the preparation of this standard has reviewed the provisions of the
following IEC Publication and has decided that itmay be used inconjunction with this standard to carry out
tests given in 6.2 (c)of this standard tillIndian Standard onthis subject ispublished.
IEC61000 (Part4/See 5): 1995Electromagnetic Compatibility (EMC) Part4:Testing andMeasurement
Techniques Section 5: Surge immunity Test
For thepurpose ofdeciding whether aparticular requirement ofthisstandard iscomplied with, thefinal value,
observed orcalculated expressing theresultofatest,shallberounded offinaccordance withIS2:1960 ‘Rules
for rounding offnumerical values (revised)’. Thenumberofsignificant placesretained intherounded offvalue.
should bethesame asthatof the specified value inthisstandard.
IS 148%: 2001
Indian Standard
PERSONAL COMPUTER — SPECIFICATION
1 SCOPE NOTE — The external and internal interfaces may include
printerinterface,serialinterface,secondarystorageinterfaces
This standard covers the general and performance suchasfloppydiskinterface,harddiskinterface,tapedriveand
requirements of the personal computer. Personal cassetteinterfaces(optionat),etc.
computer covered by this standard may comprise of 4.3 Display
thefollowing:
a) Personal computer module comprising of The personal computer monitor shall be capable of
central processing unit (CPU), memory and performing asspecified inIS 13384(Part 1)andinIS
various interfaces; 13384(Part 2).
b) Switch mode power supply (SMPS) unit;
4.4 Keyboard
c) Keyboard (integral/detachable); and
d) Floppy disk drive, hard disk drive and other The personal computer keyboard shall be capable of
secondary storagedevicesasperconfiguration performing asspecified inIS 14441.
supplied bymanufacturer.
4.5 Power Supply
2 REFERENCES Thepower supply maybean integral partofthePCor
The standards indicated in Annex A contain maybeaseparateunit.Maximum powerconsumption
provisions which through reference in this text, shall not exceed the value specified by the
constitute provision of this standard. At the time of manufacturer.
publication, the editions indicated were valid. All
5 SAFETY REQUIREMENTS
standards are su5ject to revision, and parties to
agreements based on this standard are encouraged to
investigate thepossibility ofapplying the mostrecent 5.1 The personal computer shall conform to safety
editions of thestandards indicated inAnnex A. requirements, These tests shall be carried out in
accordance with IS 13252 and shall meet the
3 TERMINOLOGY
requirements specified therein for following tests:
3.1 For purpose of this standard. the terms and a) Earth leakage current test shall becarried out
definitions asgiven inIS 1885(Part 52)shallapplyin according to5.2 ofIS 13252.
addition tothe following. b) Dielectric testasper 5.3 of IS 13252.

3.1.1 Personal Computer 6 EMUEMC REQUIREMENTS
An 8-bit, 16-bit, 32-bit or 64-bit microcomputer for 6.1 The conducted emission and the radiated
individual use in applications such as office, small emission shallbelimitedtotherequirements specified
business, school, home, etc. inTable2,Table 4andTable 6 forClassBequipment
inIS6873(Part 7).
4 GENERAL REQUIREMENTS
6.2 Conducted Susceptibility Test
4.1 Personal Computer
The following testsshall becarried out:
4.1.1 Under lmenlioned features of the micro- a) Electrostatic dkcharge test—AsperIS 14700
processor shall bespecified bythe manufacturers: (Part 4/See 2),
b) Electrical fast transientfburst test— As per
a) Microprocessor used,
IS 14700(Part 4/See 4), and
b) RAM expansion capacity,
c) Surge/spike test — As per IEC 61000
c) Clock rate, and
(Part 4/See 5).
d) RAM capacity.
7 PERFORMANCE REQUIREMENTS
4.2 External and Internal Interfaces
The performance requirements forpersonal computer
These shallbeasspecified by themanufacturer.
shallbeasspecified inTable 1.
1S 14896:2001
Table 1 Performance Requirements
(Clause 7)
S1 Parameters Requhements
No.
(1) (2) (3)
i) Visualexamination a)Thepersonalcomputershallbefreefromworkmanshipdefects,cracks,scratches,nicks,
burrs, sharpedges,etc. Allthe fastenersshallbeproperlyscrewed.The identification
markst’oralltheinterfacedconnectorsshallbeclearlyvisible.Highvoltageareas should
bemarked,withadequate ‘CAUTION’labels.
b)Theavailabilityoftheinputioutputport(serialportandparallelport)applicabletoexternal
andinternalinterfacesshallbechecked.
ii) Functionalperformance Asspecifiedbythemanufacturer.
iii) Effectofpowersupplyvariations Thepersonalcomputershallmeetthefunctionalrequirements whenoperatedfrom170volts
to270voltsACandforfrequency variationfrom47Hzto53Hz.
8 MARKING 10 TESTS
8.1 Each personal computer shall be legibly and 10.1 Type Tests
indelibly marked with at least the following Thetestsspecified inTable2shallconstitute typetests
information: and shall be carried out in the sequence mentioned
therein.
a) Manufacturer’s name or trademark;
b) Model designation and serial numbev 10.1.1 Number ofSamples
c) Additional markings for safety, such as high
Fortypetests,number ofsamples shallbethreeofthe
voltage points withtheir voltage value;
samemodel. Typeandmakeofthepersonal computer
d) Country ofmanufacture;
shallbeselected atrandom, preferably from aregular
e) Input AC voltage range and input frequency;
production.
f) Fuse and itsrating (ifreadily accessible tothe
user); and
Table 2 Schedule of Type Tests
fsoInput/output points.
(Clause 10.1)
Compliance ischecked by inspection andby rubbing
Group Teats ClauseRef No.of
the marking by hand for 15 s with a piece of cloth
Samptes
soaked with water and again for 15s with apiece of
(1) (2) (3) (4)
cloth soaked with kerosene. After the test, the o Checkforgeneralrequirements 4
marking shallbelegible; itshallnot beeasilypossible Checkforpaformance requirements Table 1

CheckforEMUEMCrequirements 6 3
toremove marking platesanditshallshownocurling.
Checkforsafetyrequirements 5
8.2 The personal computer mayalsobemarked with Checkformarkksgrequirements 8
theStandard Mark. I Drop(Freefall)test 10.4.6 1
Bumptest 10.4.7
8.2.1 The useoftheStandard Markisgovernedbythe 2 Vibrationtest 10.4.1
provisions of Bureau of Indian Standards Act, 1986 Dryheattest 10.4.3 1
andtherulesandregulations madethereunder. Details Dampheattest 10.4.4
Coldtest 10.4.5
of conditions under which a license for the useof the
3 Bum-intest 10.4.2 1
Standard Mark may be granted to manufacturers or
producers maybeobtained fromtheBureau ofIndian
10J.2 Criteria ofAcceptance
Standards.
There shall be no failure in any of the type tests. In
9 USER MANUAL case of failure, twice the number of samples shall be
A user manual (either in hard copy or sbft copy) taken and subjected to the tests in which failure has
containing information relating to inst@lation, occurred and other tests that have bearing on the test
operation, routine maintenance andsafetyprecautions results. Nofailure should bethere inthe retests.
shall bemade available with eachpersonal computer. 10.2 Routine Tests
The manufacturer would particularly specify the
The following shallconstitute routine tests:
critical components for which adequate care needs to
be taken to ensure proper replacement at the time of a) Visual examination asperTable 1,
servicing. b) Functional performance asperTable 1,

2
IS 14896:2001
c) Earth leakage current test as per 5.2 of test carried out inaccordance with IS 9000 (Part 5/
IS 13252,and Sec 1), at a temperature of 40”C and a relative
d) Dielectric testas per 5.30f IS 13252. humidity not lessthan 90percent for twocycles.
10.3 Acceptance Tests 10.4.5 Cold Test
The following shallconstitute acceptance tests: ThePCinunpackedcondkion withpower ‘OFF’shall
be subjected to cold test of seventy of –10”C for
a) All tests listed under Table 1,and
2 hours carried out in accordance with IS 9000
b) Alltests listed in5.1.
(Pafi2/Sec4). Thedurationofrecoveryshallbe1-2hours.
Sampling plan and AQL shall be selected from To avoid condensation, equipment to be brought to
IS 10673andagreed tobetween themanufacturer and ambient temperature inacontrolled environment.
thebuyer.
10.4.6 FreeFall Test
10.4 Environmental Tests
ThePCshallbesubjected tofreefalltestfromaheight
10.4.1 Vibration Test of 25 mm inaccordance with IS 9000 (Part 7/See 4).
Total number of falls shallbe 8(4comers +4edges)
The personal computer in unpacked and shipable
inunpacked condition.
condition with power ‘OFF’ shall be subjected to
vibration test at a frequency of 10 to 55 Hz and 10.4.7 Bump Test
acceleration 1g(peak-to-peak) for45minutes oneach
The PC shall be subjected tobump testcarried out in
axis (X,Y,Z) inaccordance withIS 9000 (Pail 8).
accordance withIS9000 (Part7/See 2),thenumber of
10.4.2 Burn-in Test bumps being 1000 and with acceleration 40g under
packed condition innormal direction.
Thepersonal computer shallbesubjected toburn-in at
10.4.8 After each environmental and mechanical
atemperature of45°C for48 hours with power ‘ON’.
endurance test,thefunctional performance asgivenin
10.4.3 Dry Heat S1No. 1and 2 of Table 1shall be carried out after
recovery of 1to 2hours and following tests shall be
ThePCinunpacked condition withpower ‘OFF’shall
carried out after damp heatand cold test.
be subjected to dry heat testof severity of 55°C for
16hours inaccordance with IS 9000 (Part 3/See 5). a) Earth leakage current test as per 5.2 of
IS 13252.
10.4.4 Damp Heat Cyclic Test
b) Dielectric testasper 5.3ofIS 13252.
The personal computer in unpacked condition with
power ‘OFF’ shall be subjected to damp heat cyclic

3
IS 14896:2001
ANNEX A
(Clause 2]
LIST OF REFERRED INDIAN STANDARDS
1SNo. Tide 1SNo. Title
1885(Part 52) : Electrotechnical vocabulary: 9000 (Part 5/ Part 5 Damp heat (cyclic) test,
1980 Part 52Data processing Sec 1): 1981 Section 116+ 8hcycle
6873 (Part 7): Limits and methods of measure- 10673:1983 Sampling plans and procedures for
1999 ments of radio disturbance Charac- inspection by attributes for
teristics: Part 7 Information electronic items
technology equipment (first
13252:1992 Safety of information technology
revision)
equipment including electrical
9000 Basic environmental testing proce- business equipment
dures for electronic and electrical
13384 Cathode raytubebaseddatadisplay
items:
moniton
(Part 7/ Part 7Impact test, Section 2 Bump
(Part 1): 1992 Colour
Sec 2) :1979
(Part2): 1997 Monochrome
(Part 7/ Part 7 Impact test, Section 4 Free
Sec 4) :1979 fall 14441:1997 Specification forkeyboard
(Part 8): 1981 Vibration (sinusoidal) test 14700 Electromagnetic Compatibility
(EMC):
(Part 21 Part 2Cold test, Section 4Coldtest
Sec4) :1977 for heat dissipating items with (Part41 Part 4 Testing and measurement
gradual change oftemperature Sec 2): 1999 techniques, Section 2 Electrostatic
discharge immunity test
(Part 31 Part 3Dry heat test, Section 5Dry
Sec 5): 1977 heat testfor heat dissipating items (Part41 Part 4 Testing and measurement
with sudden change oftemperature Sec 4) :1999 techniques, Section4Electrical fast
transient burst immunity test
Bureau of Indian Standards
BIS is a statutory institution established under the Bureau oflndian .WzndardsAct, 1986 to promote
harmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.
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without the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.
Review of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also
reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that
no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users
of Indian Standards should ascertain that they are in possession of the latest amendments or edition by
referring to the latest issue of ‘BIS Handbook’ and ‘Standards: Monthly Additions’.
This Indian Standard has been developed from Doc : No. LTD 37( 1555).
Amendments Issued Since Publication
Amend No. Date of Issue Text Affected
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