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    phn th hail thuyt thc hnh o kim v phng php phn tch

    bn tin bo hiu ! "

    ch ng i# l thuyt o kim bo hiu ! "

    $% t&ng 'uanBo hiu v ng b l nhng yu t quan trng trong vic

    m bo cht lng hot ng ! an ton v th"ng #ut c$a tonmng %i&n th"ng' (ua )ho #t v thng )* ch+ng ta c, th- thytr*n mng trong th.i gian v/a qua c, mt # l0i v1 bo hiu nh2

    345n tht v1 c6c3 7in tng c6c )8o 9i3 7in tng ch: c6c3 4; l thnh c"ng cuc gi thch v? )h"ng th@c hin cAht lng thoi u4ruy1n # liu! Ca )8m

    (h)ng l*i t+,n y c- th .y +a /o nhi0u nguy,n nhn#3 Do l0i bo hiu'3 Do cht lng ng b )h"ng m bo'3 Do )h nEng c$a t5ng i! thit b>'

    3 Do cc chFng trGnh

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    3 A, 3 Ro bo 9ng >nh ) v L lO #@ c

    $$%7%2%8o kim 351 mc 23 Ro )i-m J4X lPvPle th@c cht l )i-m tra cht lng truy1n 9`nc$a )*nh v]t lO p Ub

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    3im #t Fn v> tNn hiu trng thi )*nh bo hiuRi1u )hi-n trng thi )*nh bo hiu'

    Ac th$ t?c )*nh bo hiu )hi c, l0i Fng truy1n

    Ri1u )hi-n thu nh tuynR>a ch; v )h nEng truy1n #liu! th"ng qua vic gim #t v tr6c )hi o

    3 AhuKn b> cc loi giy t. bng bi-u c, li*n quan'

    3 c >nh m?c Nch v y*u cHu cHn o )i-m'

    [

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    3 @a chn cc

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    $$%

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    3 Dnh cho cc bi o gim #t3 4h@c hin o trong ch Vn_sPrvicP3 45ng i B v t5ng i A l t5ng i c )i-m tra3 45ng i D l t5ng i Nch3 Je J l cc i-m gim #t bo hiu'3 J?c Nch2 )i-m tra tuyn bo hiu t/ t5ng i A n

    t5ng i D Rnh gi )h nEng 4ran#it c$a t5ng i B s4X'

    VV'p'' Au hGnh o 2 9nh cho cc bi o oo< bo hiu c^

    3 45ng i f l t5ng i c )i-m tra3 Ac bn tin bo hiu c )hQi nh tuyn vwng v1'3 45ng i 4ran#it

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    a' Ro Ja

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    b' Ro Ja

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    * Cu hnh o 4 ch c thc hin khi c lung E1 - R2 d phngkh!ng c t"i c#$ %i tng &' d(ng) kh!ng thc hin %i +,i cclung $ng &' d(ng c lu lng).$$$% 5hit lKp cc giao /in oL Fu n!i my o%

    VVV'e'4hit l]< giao 9in o'4u thPo cc bi o c? th- #d c, nhng cch u ni v to

    l]< cc giao 9in gia my o v6i t5ng i cHn o'

    Ac bi o c thit l]< cc giao 9in o v6i mt # th"ng # ch$yu #au My2 iao 9in2 '^\ cho lung '\p Jb

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    b' Ru ni my o m"

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    $$$%;% 1hn loOi cc bi o c4 th

    4rong c"ng tc o )i-m h thng bo hiu # ^! cc mTc e! c$a a vo hot ng' Dov]y ch+ng t"i )h"ng 1 c]< #Mu vo cc bi o c$a mTc J4X mch$ yu i #Mu vo cc bi o cho

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    Ahn cu hGnh o e i v6i t5ng i ch; l sX! cu hGnho nu t5ng i c, chTc nEng s4X! th@c hin cc thao tc uni!thit l]< giao 9in o' im #t tr*n cc tuyn li*n t;nh!nit;nh v quc t'

    b' Ro n >nhAc b 6c chuKn b> tr 6c )hi o @a chn cu hGnh o e! thit l]< giao 9in o v u ni

    my o' Ro thPo cc tr .ng h< #au

    _ 4hu* bao f l thu* bao c$a t5ng i cHn )i-m tra'_ 4hu* bao B 2 l thu* bao thuc t5ng i Nch

    3 Ri v6i cc cuc gi li*n t;nh! thu* bao B l nhng thu* baothuc cc h t5ng i )hc nhau Q cc 7|s4 )hc nhau! th- hin

    c c mi1n v cc mng nh mng A?c Bu in 4~! %inanh trong cc tr.ng hch v?

    VVV'''Ro m"

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    o )i-m t5ng i tr6c )hi ho mng ch+ng ta m6i th@c hin

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    3 f e[ c, )h nEng m" lO 9o oAc nguy*n nhMn o l mt th"ng # quan trng trong cc

    bn tin { v A c$a

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    th"ng # lO 9o o l mt th"ng # bZt buc! cwn ti bn tin AthG th"ng # ny l tu chn' 4rong nh )hong th.i gian- ly )t qu' Ri v6i cc my o c, 9ung lng nh6 l6n thG ch+ngta c, th- lu tm th.i trong my o! nhng v6i nhng my o 9ung l_ng nh6 hn ch thG ch+ng ta

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    i$$% 5i,u chuVn nh giXhMn tNch cc )t qu o v Rnh gi cht lng mng l6i c$a V4j '''

    2% Dc ti,u chuVn nghnh

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    k 0i BV4 v rung

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    4rong

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    PcovPry on timPr P

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    e \'x 2 VfJ! fAJ! f=J! sjs! {s! sjs! f { =orring!A e \'x 2 VfJ! fAJ! f=J! sjs! {s! sjs! {s! sjs! {s!sjs! {s!

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    7% 8o tOi t&ng i Q2Z 5n ]uy 8^ng P5p [_ Dh 3inh

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    ''Danh #ch cc bi o loo< vwng bo hiu c^

    s44

    4*n bio

    4h$ t?c trao 5i bo hiu Utqu

    e f! B lthu*bao th_.ng! fStmy tr_

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    #au ,f Stmy

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    _ B gLi sjs! #au th.i gian tr& 4! f gLi {e\- Ui-m tra th.i gian tr& 4

    p f! B lthu*bao th_.ng! fStmy tr_6c )hi Btr l.i

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    4hu*bao Bb]n

    _ B gLi { e^ _ j#Pr bu#y! f gLi A!_ 4hu* bao f nghP thMy Mm b]n

    ^ 4hu*bao BhznglinP

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    4hu*bao Bngoi9anh b

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    [ 4hu*bao Bl thu*bao 9i

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    chuy-n_ Ui-m tra th"ng bo c< cho thu* bao f

    e\ 4hu*bao B

    l thu*bao 9ichuy-n! c,9>chv?th"ngbo r# 9ichuy-n

    n

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    Aau#P p sPn9 #

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    ee 4hu*bao Bb> cmgi vo

    _ B tr v1 fAJ Aau#P p sPn9 #

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    e 4hu*bao Bl thu*baobZtgi! fStmy tr_6c

    _ Ui-m tra trong bn tin c, ch; th> Scbit

    _ *u cHu cuc gi gii

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    ex 4hu*bao Bl thu*

    bao uti*n

    - B tr v1 fAJ c, ch; th> callP9

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    e 4hu*bao fl thu*bao uti*n

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    3^ hGnh 7# Ui thu, bao J cdng t&ng i%'p' 9anh #ch cc bi o ma

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    _ f! B_ AC! VD{

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    _ f! B_ AB!_ AC! VD{

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    _ f! B^ _ fAJ chargP in9icator =o chargP!

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    _ f! B B^ _ fAJ_ sau th.i gian tr& 4 ! B gLi{ e[ _ =o an#Pr }romu#Pr_ Ui-m tra th.i gian tr& 4

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    _ f! B_ AC! VD{

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    _ f! B_ f nghP thy Mmb]n

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    e 4hu*bao BhznglinPloc)out

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    _ f! B_ Ui-m tra Mmth"ng bo c< cho f

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    _ f! Bx_ Ui-m tra Mmth"ng bo c< cho f

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    _ f! B_ Ui-m tra Mmth"ng bo c< cho f

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    p 4hu*bao BW 9ichuy-n!th"ngbor #my9i

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    _ f! B^

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    _ f! B^ hoSc fp_ Ui-m tra Mmth"ng bo c< cho f

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    Ui-m tra - c>nh2_ 45ng i lu"n hziAV tr*n .ng trung) hay ch; hzi AV)hi thu* bao c, 9>ch

    v? bZt gi'_ 4h$ t?c thit l] 7ol9ingPquP#tP9