Lời giới thiệu về trang web miễn phí cho việc tra cứu sáng chế
2 LỜI GIỚI THIỆU
Transcript of 2 LỜI GIỚI THIỆU
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Quy trnh lp t BTS Phng K thut
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Phn 1
Chun b mt s iu kin c bn
trc khi lp t thit b
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1.1. H thng chng st v ni t: (xem hnh 1)
1.1.1. Chng st v ni t bn ngoi phng thit b:
* Ti phn ln cc trm, khi chiu di phn phi t chn ct n thanh ng tip t
trc l cp nhp trm nh hn 5m --> ch dng hai si cp ni t:
- Dng mt dy ni t chng st ni vo kim chng st trn nh ct anten v nitrc tip xung cc t. Phn dy chng st cho ct anten cn i thng v c
nh vo thn ct, cch li vi dy ni t chng st cho phi, sao cho c st
nh, st s thot xung t nhanh nht.
- Dy ni t th hai dng ni t chng st cho phi v dy cp tn hiu ca
viba. Tnh t anten GSM tr xung, cn tip t cho phi s dng thanh ng
tip t ti t nht 03 im :
+ im u tin khong cch khong 0,3m n 0,6m tnh t im ni
gia dy nhy v phi (xem hnh 1); Nn bt thanh ng tip t v tr
ph hp m bo cc dy tip t cho phi i thng.+ im th hai ti v tr (trc khi phi un cong chn ct ) cch ch un
cong khong 0,3m. Yu cu cc si dy ni t cho phi khi ni vo
thanh ng tip t phi m bo hng thng t trn xung, hn ch un
cong ti mc thp nht.
+ im th ba ti v tr trc l cp i vo phng my. Thanh ng tip t
lp di l cp khong 20cm
C ba thanh ng tip t chng st cho phi nu trn ni vo bng ng tip
t ti v tr trc l cp nhp trm v ni xung cc t.
Cc thanh ng tip t cho phi (phn bn ngoi phng thit b ) lp dc theo
thang cp v cch in vi ct (xem hnh 1).
* Trong trng hp khi chiu di phn phi t chn ct n thanh ng tip t
trc l cp nhp trm ln hn 5m, ta dng thm mt dy ni t trc tip t thanh
ng tip t trc khi cp un cong chn ct ni trc tip xung cc t.
* Trng hp cc trm BTS dng nhiu ct nh thay v mt ct chung cho c c anten th
ni t theo nguyn tc sao cho khi c st nh th st s thot xung t nhanh nht.
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Kim chng st
Thanh ng tip t
Bngng tipt trong
phngmy
Dy thot st
Dy nhy 2m
Si phi (i trn thang cp)
BTS
Thang cpNi t chothang cp
Bng ng tipt nh tr m
Kp tip t (2) v trcch ch un 30 cm
Lin kt tip tt i mc sn nh
Tip t thangc
Viba
Kp tip t (3) v trcch ng vo 30 cm
Kp tip t (1) trn ct (cch
im ni dy nhy-phi t30-60 cm
Hnh 1. H thng chng st v ni t cho trm BTS
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1.1.2. Ni t trong phng thit b :
- Dng mt dy ni t ni t bng t chung trong phng thit b i trc tip
xung cc t v cch li vi phn chng st bn ngoi phng thit b.
- T in AC v n p ni t bng mt ng ring. T ct lc st dng mt
ng ni t ring.
- V tr thanh ng ni t chung cho phng thit b c th t di l cp nhptrm, hoc di chn tng tu theo iu kin ca tng trm.
CH :
- Trong trng hp cp i trn ct
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1.3. Phn ngun in AC
- T in AC:
- Cc hp cp dng i dy ngun AC c kch thc 100x60mm.
- Cc loi cp ngun AC i vo t in AC dng mt l ln v tr gn tng cp ngun AC lun nm trong hp cp v c bc bo v bng mt lp v bc v tr
tip xc vi v hp ca t in AC (xem hnh v)
- B tr t ct lc st bn phi, t in AC v tr bn tri. Tuy nhin, nu trong
trng hp c bit, c th t t in AC bn phi, t ct lc st bn tri.
- Phn in AC phi i cch cp thot st t ct anten t nht 30cm, nu kh thc
hin cp AC phi bc kim hoc i trong ng kim loi.
1.4. Mt s lu :
- Phi i trn thang cp xp chng ln nhau theo tng cp dnh phn cho vic m
rng trong tng lai. Lu khng phi ca sector ny xp i vi phi ca sector khc.
- Dy thot st trn nh ct anten ni vo kim chng st phi i thng xung di.
- Kim tra lp t ct dy co khng chng v trnh i qua tr c bp sng chnh
ca anten.
AT 100A
AT 63A cho thit bAT 20A cho in iu hoAT 10A cho in chiu sn
Cp thot st
Ngun AC voct lc st
Ngun AC ra
100 x 60 SP
Hp cho AT
Cp my n
Cp ngun t ctlc st n
Cp ti n pCp tip t
110 x 60 SP100
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Phn IICc Quy trnh lp t
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2.1. quy trnh lp t anten v phi
2.1.1. Chun b lp t :
- Kim tra ct ph dng lp cc anten GSM xem c ng thng khng, nu khng
phi chnh li trc khi lp t.
- Kim tra m bo c dng c lp t, cc loi vt t
dng lp t (phi,dy nhy, connector, cc thanh ng tip t chng st cho phi, dy tht, trang thit b
an ton lao ng...)
- Chun b sn cc tham s v tuyn lin quan n anten : cao, gc phng v,
gc ngng ca mi anten GSM, anten viba (nu c)
2.1.2. Cc bc tin hnh :
Bt u
Chun b trc khi lp anten ln ct
Ko anten ln ct
Lp anten ln ct, c nh dy nhy
Ko phi ln ct
Ni phi v dy nhy
Tip t chng st cho anten, phi
Kt thc
C nh phi
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Bc1: Chun b trc khi lp anten ln ct1. Lp b chnh gc ngng anten (downtilt) vb g c nh.
2. Bt b G c nh ln downtilt bng 2 c vt M8 ngn v 2 c vt M8 di (hnh v)
c vt c nhdowntilt ln anten
c vt c nhmounting clamp
ln anten
c vt kpmounting clamp
ln cc ph
Yu cu:- Downtilt nm pha di chn anten, khng phi pha trn.- Lp downtilt tht chc chn.- Lp ng v tr ca downtilt theo ch dn trn anten.
- Dng 2 c vt M8 ngn c nh downtilt ln thn anten
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3. u ni dy nhy vo anten
4. Lm u connector cho phi (xem chi tit trong ph lc)
y u connectorvo l ca anten
Vn cht uconnector vo l
Bc cao su non bo vmi ni
Dn nhn ln tng dynhy (A: +45, B: -45)
Yu cu+ Dy nhy c chiu di khong 2m, trnh trng hp cun vng khi dy
nhy qu di. Nu c sn connector th c th ty trng hp m sdng dy nhy c chiu di ph hp.
+ m bo cht lng ca mi ni: tip xc tt v c bo v tt+ Dn nhn ln tng dy nhy theo quy nh: SECT 1_A, SECT 1_B.
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5. Lp b tip t do Alcatel cung cp cho phi
Yu cu:- Phi m bo tip xc tt cho tip t.- Phi bo v tip xc bng cch dng ng gen co nhit, cao su non, bng keo in.- Lm tip t cho phi cch u connector khong t 30 cm n 60cm.- Cch 20m phi lm lm tip t cho phi.
- Dng dao tr ct b v phi rng khong 5 t cp (va bng b rng ca btip t cho phi khong 4cm).
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Bc 2. Ko anten ln ct
Yu cu:- Anten c lp downtilt, b g c nh v dy nhy trc khi ko ln ct
- Phi m bo cc u connector ca dy nhy ni vo anten phi c bov bng cao su non v u cn li phi c bc nilng tht kn trong lc ko lnct trnh gy bi bn ln connector- Phi m bo tht an ton cho ngi v thit b
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Bc 3. Lp anten trn ct, c nh dy nhy
1. C nh anten ln ct anten thng qua downtilt v b g c nh
2. C nh dy nhy ln ct bng kp cp tht chc chn v thm m
3. Xc nh chnh x c gc ngng ca anten (t thit k v tuyn). Tnh gc ngng
ca anten bng cch o khong cch gia hai vt trn b chnh downtilt ri tra bngghi trn anten
4. Tip t cho v anten
Bc 4: Ko phi ln ct
Yu cu:- Phi m bo tht an ton cho ngi v thit b- Vn kp cp va phi trnh lm mp mo cp- Chun b y dng c lp anten: c vt M8, c l, ...
Yu cu:- Bo v cc u connector (bt kn bng ni lng) ca phi- Phi m bo tht an ton cho ngi v thit b
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Bc 5 : Ni phi v dy nhy
1.o chiu di ca phi n u dy nhy t t MBI5, ct phi va ni vo
dy nhy. Phi dng lightning protector (do Alcatel cung cp) ni u connector
ca phi vi u connector ca dy nhy ri dng 02 c-l vn cht.2. Qun cao su non v dng gen co nhit bo v cc mi ni, nu cn thn nn
qun thm 1 lp bng keo.
Bc 6. Tip t chng st cho anten, phi
1. Xem hnh 1 v v tr cc thanh ng tip t cho phi2.Trn ct: ni cc dy tip t cho phi ( chun b trc khi ko phi ln ct)
vo bng tip t gn trn ct
3. Trong phng my : Tip t chng st cho li phi thng qua connector gia
phi v dy nhy, ni dy t ny ln bng tip t t trn thang cp. Ni t bng
tip t t trn thang cp ti bng tip t chung trong phng my
Yu cu:- Lm sch cc u connector bng giy mm hoc cy bng c tm cn- Vn cht 2 u connector bng 02 c-l
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Bc 7 : C nh phi
C nh phi ln thang cp trn ct bng cc kp cp v dy tht.
Yu cu:- Phi tip t cho phi ti t nht 3 im (trng hp c bit c th c 2 hoc
4 im): Sau mi ni gia top jumper vi anten 30cm ti 60 cm, ch phi uncong chn ct v trc khi vo l cp nhp trm.- Tip xc gia v phi v b tip t phi cht, m bo tip xc tt.- Mi ni phi c bo v chng li mi nh hng ca thi tit: bc cao su non- Tip t cho tm l cp nhp trm, m bo lm kn cc l cp bng silicon
Yu cu:- Phi m bo c sau khong 1m n 1,2m c mt b kp cp- Phi dng dy tht vi cng c ph hp
- Trnh vn kp cp qu cht c th lm mp mo phi gy suy hao ln.- Khng kp phi ca 2 sector chung 1 kp cp.- Cp i trn thang phi nm st nhau v mt pha dnh v tr cho pht
trin sau ny.
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2.2. Lp t phn thit b BTS
2.2.1. Chun b lp t :
- S , bn v thit k mt bng nh trm
- Danh mc thit b cn kim tra (checklist)
-
y cng c, vt dng cn thit cho vic lp t: b tuc-n-vit, c-l, km,ba, khoan, level, ...
- Kim tra m bo thit b khng b h hi trong qu trnh vn chuyn n
trm
2.2.2. Cc bc tin hnh:
Bt u
C nh t thit b (MBI5)
Tip t cho t thit b
Ni cp PCM
Ni cp cnh bo
Ni dy nhy vi BTS
Kim tra phn lp t, ni cp ngunDC
Kt thc
Kim tra thit b
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Bc 1: Kim tra thit b:
Bc 2: C nh t thit b
1 . t bn v v tr cc vt di chn t BTS (i km theo thit b) ln sn nh, nh
du cc v tr ri khoan v bt 2 thanh cc nh trn sn, sau t t BTS ln
2 thanh v c nh vt.
2. Cn bng rack: vn bu-long va phi ng thi dng level (b kim tra cn bng)
cn bng rack ri vn cht cc bu-long c nh rack.
Bc 3: Tip t cho t thit b
1. Ni cp GND (mu vng/xanh ) vo bng tip t chung trong phng my
2. Ni cp GND vo nh ca rack ng thi c nh cp bng cc dy tht.
Bc 4: Ni cp PCM
1. u cp ti BTS:+ Chun b u cp v dn nhn cho cp (xem thm ph lc)+ Tho thit b bo v chng st trc khi lp cp (Lp li sau khi u ni dy)
+ Dng dng c chnh hng Krone u dy ln phin.
Yu cu:- Thit b nhn c phi y v ng chng loi theo danh mc ko theo.- Thit b khng b try xc, hhng trong qu trnh vn chuyn.- Nu c sai st phi lin h ngay vi nhng ngi c lin quan v i din ca
Alcatel trong vng 48 gi.
Yu cu:- Rack BTS sau khi lp t phi ng vng chc,cn bng, khng rung.- Cc thit b phi d ra trong qu trnh vn chuyn, lp t phi c tr
li v tr c, m bo chc chn khng b nhm ln.
Yu cu:- Cc im tip xc phi tt, c bc gen co nhit.- i dy phi gn gng, phn i trn thang cp phi thng.- Phi tip t cho t trc khi ni ngun.- Lm u ct cho cp GND vng/xanh: nn s dng loi cp 16mm2, u ct 8mm.
Yu cu:- ng i cp phi gn gng, phn i trn thang cp phi thng- Khi chun b u cp, cn cn thn khng ct t dy tip t ca cp.
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2. u cp ti DDF (xem ph lc)Trn t BTS:
Nguyn tc:
K hiuV tr lp
thit b Krone
Mu
dy 1
Mu
dy 2Hai i dy 1 (quad 1) Abis1/TX 8 Trng Xm
Tn hiu mc cao iti BSC
Abis2/TX 6Xanhda tri
ta
Hai i dy th hai Abis1/RX 7 Vng XmTn hiu mc thp i
vo t BSCAbis2/RX 5 Nu ta
Quad 3 v 4 khng c s dng (khng ct chng, s s dng trongtrng hp a tiu chun)
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u ni cp ti rack Chun b u cp
Chi tit v u cp L907 Chi tit u cp, v d v Abis 1
Bc 5: Ni cp cnh boYu cu:
- ng i cp phi gn, p.
- Khi cha u cnh bo th cn phi loop cc u cnh bo trn DDF.
Ch :- Thng thng ch tin hnh ni sn 2 cp cnh bo 8x2 t BTS n DDF.
- Khi chun b u cp, cn cn thn khng ct t dy tip t ca cp
- Vic ni t cho cp cnh bo c tin hnh ti cc phin u ni.
Tin hnh:
- Nm thng tin cn thit v u ni cp v s lng cp cnh bo cn lp t.
- i cp cnh bo trn mng cp, c nh cp bng cc dy buc
- Chun b u cp v dn nhn cp (xem thm ph lc)
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Chi tit hp u ni dy cnh bo Cp cnh bo- B cp vi nhau bng dy buc cp
- u cp vo phin u ni ca rack:
phin 1 = lp dy cnh bo t s 1 n 8
phin 2 = lp y cnh bo t s 9 n 16
- Buc cp vo rack
Dy th nht Dy th hai
Quad 1 i 1 Trng (Xl 1) Xm (XGND)i 2 Xanh da tri ta
Quad 2 i 3 Vng Xmi 4 Nu ta
Quad 3 i 5 en Xmi 6 ta
Quad 4 i 7 Xanh l cy Xmi 8 Trng (Xl8) ta (XGND)
Quy nh v tr u ni cnh bo
STTcnhbo
Loi cnh bo i dyV tr trnphin u
ni ca BTS1 Hng rectifier i 1 12 Hng ngun chnh i 2 23 Cnh bo m ca i 3 3
5 Bo chy/ bo khi i 4 57 Cnh bo iu ho i 5 79 Cnh bo nhit i 6 910 Cnh bo h thng chng st i 7 1011 Cnh bo cn ngun c quy i 8 1115 Cnh bo h thng vi ba i 9 15
Bc 6: Ni dy nhy
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2.3. Quy trnh Lp t h thng ngun DC2.3.1. Chun b:
- Cc thng tin v trm cn lp t: a ch, tn ch nh, s in thoi cn lin h,
- Bn v thit k mt bng phng my xc nh v tr t BTS, v tr t ngun
- Dng c lp t, cng c lp t- Gng tay bo h dng trong qu trnh vn chuyn thit b
2.3.2. Cc bc thc hin:
Bt u
Kim tra thit b
C nh t ngun (MTP 54)
Tip t cho t ngun
Lp cc khi chnh lu (rectifier)
Lp h thng c qui
Ni dy AC vo t ngunv dy DC n cc t thit b
Kt thc
Ni dy cnh bo n DDF
Kim tra phn lp t
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Bc 1: Kim tra trc khi lp t:
Bc 2: C nh t ngun (MTP54)
1. Xc nh v tr t t ng theo bn v b tr thit b trong trm
2. a t ngun ln 2 thanh ray ri c nh bng cc bulong sao cho t ngun
ng thng bng, chc chn
Bc 3: Tip t cho t ngun
1. Lm u ct cho 2 u dy t2. Ni dy t cho t rack n bng t chung trong phng my
V tr bt inh bu-lng
c nh t rack ln ray
Yu cu:- Thit b phi y v s lng theo checklist.- Trong qu trnh vn chuyn khng thit b b try xc, hhng hay mp mo.- Cc thanh ray dng lp t t ngun phi m bo c nh, chc chn
Yu cu:
- Ccmi ni gia thanh t trong t rack vi dy tip t v bng tchung vidy tip t phi cht, chc chn.- Dy tip t phi 16mm2.- Cc c vt c nh dy t vo bng t phi lm bng ng
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Bc 4 : Lp cc khi chnh lu (rectifier-PM12)
1. Lp 2 module rectifier vo ng khe trn subrack
2. Dng bt th in kim tra cc tnh ca cc dy trc khi ni in AC voRectifier
3. Cm dy ngun AC vo l cm trn rectifier
Yu cu :- Trong qu trnh lp khng c xy ra bt k va chm mnh no ln PM12.- Phi vn cht 2 c trn PM12 ln t rack ri mi cm dy AC- Khng cm ngun nu cha kim tra cc ca dy ngun AC vo ( Dytrung tnh, dy pha) bng bt th in. (Lt nga u cm, bn phi l dynng, bn tri l dy trung tnh.- Tho cu ch khi lp accu.
Phn nicnh bo
ngun
Khu vc ni in AC
T ngun nhn t trnxung
Ni ti t in AC , Cable 5 x 6mm
Ngun DC cho BTS, MW
Ni ti thanh tip t
Dytrungtnh
Dy nng
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Bc 5 : Lp h thng c qui
1. Tho cc tm chn trc v vch 2 bn hng.2. Tho cu ch (ko xung).3. t 4 bnh c quy vo tng ngn ng.4. Ni cp gia cc bnh c quy ca tng ngn tht cn thn.5. Ni 02 dy bn hng t vo c quy cc m (-) v dng (+) ca tng b c qui.6. Dn nhn cnh bo trc c quy.7. Dn s seri ng trc c quy.8. Lp cc tm chn trc v vch hai bn hng t
Yu cu:- m bo lp h thng vng chc, an ton-Lp ng cc tnh v b tr c qui trn khay theo ng thit k ca hng-Khi lng mi bnh c quy 12V/90Ah l 30kg nn phi thn trng khi vn chuyn- c bit cc dng c phi c cch in tt khi kt ni gia cc bnh- Thc hin lp h thng c qui t di ln trn
Cu
ch
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Bc 6: Ni dy AC vo t ngun v dy DC n cc t thit b
A. Ni in AC ti Rack ngun1. Ni 3 dy pha (mu nu + 2xen) vo chung aptomat 63A trong t in AC.
2. Ni1 dy trung tnh (mu xanh)vo aptomat 63A trong t in AC
3. Trn 5 aptmt (CB) cho ngun AC trn nh t ngun : ni 3 dy pha vo 3CB, 1 CB ni dy trung tnh, 1 CB ni vo dy t
B. Ni ngun DC n t thit b BTS :
4. Ni cp DC vo 1 CB v thanh (0V).
5. Ni dy t vo thanh t trn t ngun
Yu cu :- Kim tra li mi u ni trong t ngun trc khi u in AC- Tip t cho t AC- m bo cc cng tc v tr OFF
Phn nicnh bo
ngun
Khu vc ni in AC (t t inAC n)
T ngun nhn t trnxung
Ni ti t in AC , Cable 5 x 6mm
Ngun DC cho BTS, MW
Ni ti thanh tip t
ACBOX
Atomat 100A cn chuyn rangoi t in AC
Ba dy pha ni chungvo Atomat 63A
Dy trung tnh nivo Atomat 63A
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-
6. Lm u ct cho dy ngun v phi bc gen co nhit7. Ni cp DC vo v tr u ngun DC trn t thit b BTS (hnh v)
Yu cu :- Chuyn tt c cc CB (abtomt), cu ch, cng tc trong t ngunv t thit b
BTS sang trng thi OFF- Tip t cho t AC, DC trc khi ni ngun n t thit b trnh dng d ln- Cn thn v cc tnh v mu sc ca dy theo qui nh:
+ Dy xanh l (-48V)
+ Dy en (0V)
Ni n cc 0V ca t BTS(dy to mu en trn thanh
0V)
Chi tit niin t tngun n
t BTSNi n cc -48V ca t
BTS
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Bc 7: Ni dy cnh bo n DDF
Thc hin:
- Dy cnh bo c cung cp theo thit b, mt u c ni connector sn,
u kia s c ct va u ni vo phin DDF trn rack Microwave
- Kt ni c thc hin trn u ni P18 (DB25)Cc cnh bo trn u ni P18 5 cp cp
Bc 8: Kim tra lp t
1. Kim tra in p ca cc b c qui: phi m bo 48V
2. Kim tra in p gia cc dng (0V) vi dy t (PE) 0V
3. Cch i cp trn thang cp: phi thng, gn t b cong4. Kim tra tip t cho cc t thit b v phn kim loi
5. Phi kim tra ngn mch thit b trc khi bt ngun kim tra in th
trn tng cc in th
Ngun chnh tt
Bo ng khn
Cnh bo khngkhn cp
trng (d tr)
Cp s 1
Cp s 2
Cp s 3
Cp s 4
Cp s 5
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Phn III
Mt s vn khc cn ch
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3.1. Phn ngoi phng thit b :
1. Khi lp dng ct anten dy co, cn kim tra vic lp t m bo cc dy co
khng chng, nu dy co i qua mi tn, ch tip xc vi mi tn cn c ng bo v.
2. Khi lp dng ct anten t ng, cn lu lp cht cc thang trn ct m
bo an ton trong khi lp t anten v viba
3. Gia kim chng st v ct anten phi m bo tip xc tt (cn hn dy
thot st vo kim chng st). Dy thot st cn i thng xung di theo nguyn
tc m bo thot st xung t nhanh nht, hn ch ti a nhng ch i dy
cp cong. Dy ni t chng st phi cch li so vi dy in ngun AC khong
cch ti thiu l 30cm
4. Phn tip t chng st bn ngoi phng thit b phi cch li vi phn ni t
trong phng my
5. Ct ph lp anten GSM phi ng thng. Nn dng thc o khong
cch gia hai vt trn b lp chnh gc ngng anten ri tra theo bng dn trn anten
xc nh gc ngng ca anten GSM cho chnh xc.
6. Phn phi i trn thang cp phi thng, Tht dy buc cn dng ng dng c
7. Ni t cho phi : Dy tip t cn c dui thng.
8. Phi tip t cho cp nhng ch b un cong, trc khi vo l cp nhp trm
v ti chn ct. Nu khong cch gia hai b ni t cho phi trn ct anten (t ch
ni jumperphi ti ch phi un cong chn ct) nh hn 3m th ch cn dng mtthanh ng tip t v mt b tip t cho phi.
9. Khng c kp cp qu cht trnh tnh trng lm mp mo cp ( gy suy hao ln)
10. Gc un cong ca phi khng c nh hn 900.
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3.2. Phn bn trong phng thit b :
11. Thit k phng my : v tr cc thit b nn theo khuyn ngh ca chuyn gia
Alcatel. V tr l cp nhp trm chn ph hp nhm m bo ph hp vi ta nh ng
thi khong cch gia anten v thit b BTS l ngn nht.
12. H thng iu ho phi c b tr hp l trnh tnh trng r r nc vo thitb trong lc hot ng. Ch cn lp mt cm in trong phng my v lp gn cng tc
n ca phng my.
13. Lu v cch lp dy, mu sc cc dy ngun trong t ngun DC. Phi c
bit cn thn trong khi lp h thng c qui (cc dng c lp t u phi c cch in)
14. Cc loi cp i trn thang cp cn i gn, thng
15. Trc khi cm ngun AC vo Rectifier, phi dng bt th in kim tra
cc tnh. (xem hnh v trong phn quy trnh lp t t ngun)
16. i phi vo phng thit b theo th t ng vi th t lm trn ct anten.
Ch dn nhn cc loi cp.
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Phn IV
Cctham s cn kim tra trong qu
trnh lp t trm BTS
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4.1. H thng t:
o in tr t ca bng t chung < 2
Dy t:
-
T h thng t n bng t chung
50 mm
2
- T bng t chung n cc bng t ph 16 mm2
4.2. Kim tra phn lp t v i dy
Kim tra t BTS v t ngun
- Rack c c nh ng vi v tr thit k
- T phi m bo cn bng, vng chc.
T khng b trc sn, khng b mo m
Ca ng kn v d dng khi ng m
Dn nhn: Dn nhn cho cc loi cp, dy nhy, t BTS.
4.3. Kim tra cu hnh phn cng ca t BTS theo ng thit k
(s lng cc TRX, ANC; v tr ca card trn t )
4.4. H thng ngun:
Ngun AC:
- Trc n p: 220 20% (V), 50 5% (Hz)
- Sau n p: 220 5% (V), 50 0.2% (Hz)
- Kch c dy ngun vo t in AC: 2x16mm2
- Kch c dy ngun n t BTS: 5x6mm2
Ngun DC:
in p ra ca t ngun DC 42 58 (V) (theo ti liu lp t ca Alcatel)
Kim tra in p ca cc b c qui: phi m bo
48VKim tra in p gia cc dng (0V) vi dy t (PE) 0V
Nominal voltage (input) Max. current (output)Type
Single phase Three phase Single phase Three phase
Output current(max)
Comment
MTP 660 mini 230V+15/-20% 400V +15/-20% 24 A 8 A 6 x 12 A (DC) Battery separately
MTP 660 medi 230V+15/-20% 400V +15/-20% 24 A 8 A 6 x 12 A (DC) Battery incl. 1x140Ah
MTP 54 230V+15/-20% 400V +15/-20% ~ 35 A 17,4 A 4 x 34 A (DC) Battery incl. 2x140Ah
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4.5. H thng cnh bo ngoi:
- V tr u ni cp cnh bo trn BTS ng hay cha
- Hot ng ca cc h thng cnh bo ngoi
+ Cnh bo ngun
+ H thng bo chy t ng+ H thng chng trm
+ H thng cnh bo m ca
4.6. Feeder v dy nhy:
- Tip t cho feeder theo ng qui nh
- Dy feeder cho antenna trong cng mt sector phi i cnh nhau
- Chiu di ca dy nhy cho cng mt sector phi c chiu di bng nhau
- Bn knh cong cho php i vi feeder: 36cm ( nu phi un i un li nhiu ln)
- Suy hao cho php < 3dB (theo ti liu lp t ca Alcatel)
4.7. Lp anten:
Gc phng v: Kim tra theo ng thit k v tuyn
- Gc ngng: Kim tra theo ng thit k v tuyn
- Tip t cho anten
- VSWR < 1.3 (theo ti liu lp t ca Alcatel)
- Return loss < -17.7 dB (theo ti liu lp t ca Alcatel)
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Ph lc
1. Lm u connector cho phi 7/8"
Ch :
Dng c cn thit: dao tr, 02 c-l 30mm (1 3/16"), tuc-n-vt dp, cao su non,
bng dnh en v b dng c chuyn dng
Thc hin:
B1: Kim tra cht lng ti u cp phi (ni lm connector), cn phi ct cp phi
(bng ca hoc dng c chuyn dng) m bo phn mt trng bn trong li
phi phi trng tinh. Thng thng ta ct khong 4 khoanh cp l s m bo v
phi ct ngay nh gia ca li ng
B2: Dng dao tr v Trimming tool ct b v phi mt on 32mm v phi m
bo sao cho phn ng phi tht sng
B3: Dng dao tch ring phn mt trng bn trong v phn ng bn ngoi. Lmsch phn mt ng v bi bn xung quanh u phi
B4: Kim tra li di cable trim cn thit
B5: t connector vo cp
B6: y connector vo cho n khi nghe 2 ting "click" lc connector c kho
cht ln phi
B7: Kim li bng cch ko th connector ra
B8: Dng 02 c-l vn cht connector li vi lc khong 35Nm/26ft.-lb.
B9: Qun cao su non xung quanh connector bo v mi niB10: Vn vt gia connector ri bm Plast 2000 y vo trong connector
B11: Vn vt vo li ri qun cao su non bo v mi ni
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2. Cch lm u connector cho cp RF:
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3. u ni trn DDF
Cc iu kin tin quyt:
- Gi DDF c lp t vng chc v c ni t tt
- DDF phi tho cc iu kin:
+ DDF phi c cc phin u ni cho cp E1.
+ Khong cch ti a gia DDF ca BTS v DDF ca truyn dn l 1m.
+ Chn ca cc phin u ni dng u cp PCM 120 phi c bn knh
nm trong khong 1-1,5mm.
+ Cc phin u ni ln gi c dn nhn, nh s.
- Cc cp c u ni mt u, c dn nhn v nh s r rng.
- Cn c s u ni trn DDF bit v tr ca tng cp cn u ni trn DDF.
Yu cu:
- Cc im u ni phi bo m tip xc tt.
- ng i dy vo cc phin u ni phi gn gng, c th t, khng c chng
cho ln nhau.
- Cc tn hiu c u ni ng v tr nhbn thit k.
Sau khi lp t xong, tin hnh ghi li thng tin v phin u ni: cc tuyn
no hot ng tt, cc tuyn no ang trng thi loop...
Nguyn tc u ni:
- Dng phin trn lm phin thu (tx)
- Dng phin di lm phin pht (rx)
- Trong mi phin th phn trn s u c nh, cn phn di s c u nhy
- u ni gia BTS DDF hay IDU DDF: theo kiu ni thng (TX1 TX2,RX1 RX2)
- u ni gia DDF (VIBA hoc truyn dn quang) DDF (BTS): theo kiu nicho (TX1RX2, RX1 TX2)
- TX (Abis 1) = v tr s 10, RX (Abis 1) = v tr s 10
- RX (Abis2) = v tr s 9, RX (Abis 2) = v tr s 9
Cc b
c tin hnh B1: Chun b cp (hnh v):
Ch : Tin hnh tch cp chiu di t nht l 5cm, cn thn khi ct v cp
khng lm t dy tip t ca cp
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- Ct cp ti chiu di thch hp
- Tch v bc cp, tho b cc lp bc bn ngoi.- Tch tng i dy ring
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B2: u ni cp trn phin DDF
Ty tng loi cp s c cch i cp vo phin u ni, cc hnh v th hin cch u ni
cp PCM 120 L907 vo phin u ni.
Cch u cp
- Lun i cp vo ng v tr cn ni
- Dng tool Krone u ni cp theo ng v tr
- u ni dy t ca cp vo phn tip t ca phin u ni
- i vi dy nhy cng tng t, ch khc dy nhy i vo phin u ni t
pha bn phi ca phin.
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Ch : Cp A-bis v cp cnh bo c th u ni trn cng 1 phin u ni.
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S u ni
1. u cp PCM (A-bis) gia t BTS v DDF:
V tr trn
phin BTS
V tr trn phin DDF
STT Tn hiuSTTpin
Phintrn/di
STTphin
STTpin
Phintrn/ di
Mu dy
1 TX Abis 1 8 Di 1 0 TrnTrngXm
2 TX Abis 2 6 Di 1 9 TrnXanh da tri
ta
3 RX Abis 1 7 Di 2 0 TrnVngXm
4 RX Abis 2 5 Di 2 9 TrnNu
Xm
u ni dy nhy t DDF vi ba ti DDF:
V tr trn phinDDF VIBA
V tr trn phinDDF
STTLoitn
hiuPhin
STTchntrn
phin
Phintrn/
di
STTphin
STTpin
Phintrn/
di
Mudy
1A-
bis 1TX 8 Di 2 0 Di
TrngXm
2A-
bis 2TX 7 Di 2 9 Di
Xanhda tri ta
3A-
bis 1RX 8 Di 1 0 Di
VngXm
4A-
bis 2RX 7 Di 1 9 Di
NuXm
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2. u ni cnh bo:
u ni cp cnh bo BTS-DDF:
V tr trn phinBTS
V tr trn phinDDF
STT Loi cnh bo STTphin
STTchntrn
phin
Phintrn/di
STTphin
STTpin
Phintrn/di
Mu dy
1 Hng rectifier 1 1 Trn 1 1 TrnTrng (Xl 1)
Xm (XGND)
2Hng ngunchnh
1 2 Trn 1 2 TrnXanh da tri
ta
3Cnh bo m ca
t
1 3 Trn 1 3 TrnVng
Xm4
M ca t cphp
1 4 Trn 1 4 TrnNu
ta
5Bo chy/ bokhi
1 5 Trn 1 5 TrnenXm
6 Nc vo (lt) 1 6 Trn 1 6 Trn
ta
7Cnh bo iuho
1 7 Trn 1 7 TrnXanh l cy
Xm
8Cnh bo nhit 450C 2 1 Trn 2 1 Trn
Trng (Xl 1)Xm (XGND)
10Cnh bo hthng chng st
2 2 Trn 2 2 TrnXanh da tri
ta
11Cnh bo cnngun c quy
2 3 Trn 2 3 TrnVngXm
12Cnh bo iuho(hng qut)
2 4 Trn 2 4 TrnNu
ta
13 Cnh bo anten 2 5 Trn 2 5 TrnenXm
14 Cnh bo anten 2 6 Trn 2 6 Trn
ta
15 Cnh bo m caphng
2 7 Trn 2 7 Trn Xanh l cyXm
16Cnh bo hthng vi ba
2 8 Trn 2 8 TrnTrng (Xl8)
ta (XGND)Cc cnh bo bn ngoi ni n DDF c th s dng cc loi cp khc nhau (c th i km theo
thit b).
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Cp cnh bo ni t t ngun MTP-54 n DDF :
Ch u ni cc dy cho bng, cc dy cn li khng s dng!
u DB25 trn t ngunPhin 1
1234
V tr trn DDF
S th tcnh bo
Tn cnh boMu dy cp
ni t t ngunn DDF
STTphin
STTchns
Phintrn/di
1 Hng rectifier
TrngXanh nht (iXanh nht- xanhm)
1 1 Di
2Hng ngunchnh
Xanh nht (i xanh nht-vng
Vng
1 2 Di
11Cnh bo cn
ngun c quy
Nu
en2 3 Di
Cc cnh bo khc: u ni theo v tr qui nh bng.