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CC BC CN THIT TRC KHI LP T BTSSau khi kho st, bn v thit k ca cng trnh s c hon thnh.Trc khi lp BTS nht thit phi c bn v thit k c ch u t ph duyt m bo tnh thng nht gia bn thi cng v b phn thit k, cng nh gia nh thu v ch u t.Trnh trng hp b dng thi cng khi bn thit k cha c ph duyt.Chun b cc th tc php l tin hnh thi cng nh giy gii thiu, cng vn(nu c).Khi n a im cng trnh cc cn b nhn vin phi mang th ca cng ty. i vi i thi cng phi chun b cc ng phc thi cng ca cng ty.i thi cng c trch nhim chun b y cc dng c thi cng, phi kim tra cn thn cc dng c thi cng trn ct nh dy an ton, m bo him, puli, thng.Khi kim tra thy an ton km phi loi b v ngh thay mi.Trc khi nhn mt cng trnh tt c cc i trng phi yu cu ch nhim cng trnh thng bo y cc thng tin v a im cng nh cc th tc ra vo chun b mt cch y nht cho qu trnh lp t ng thi phi tm hiu k cc thng tin qua bo co kho st.
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TNG QUT QUY TRNH LP T BTS HUAWEI NHN HNG TI SITE M KIM HNG HA LP PHNG NTHI CNGLP T INDOOR KIM TRA CC IU KIN THI CNGLP T OUTDOORKIM TRA LP TKIM TRA NGUN DCBT TH BNG NGUN DC KT THC GHI LI SERI THIT B V K KT CC BIN BN VI GIM ST
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1. TH TC NHN HNG V M KIMCc d n khc nhau c th tc nhn hng khc nhau nhng c th chia lm 3 loi nh sau:Nhn hng ti site(ch yu cc d n hin ti u dng th tc ny)Phi hp cng gim st thc hin vic m kim hng ho v k nhn hng. Lin h trc cc th tc ra vo.Trong trng hp khng c gim st vn phi thc hin cc bc m kim chc chn thit b y lp t.Nu thiu lm bin bn lit k vt t thit b thiu bo v kho trnh vic chm tr qu trnh lp t.Nhn hng ti kho ca i tc.Kim tra nhn hng y theo bng k ca cng trnh, k nhn cng th kho ca i tc.Ch cc ni quy ca kho bi.Nhn hng ti kho ca cng ty COMATEL.Kim tra nhn hng y theo bng k ca cng trnh, k nhn cng th kho.
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2. KIM TRA, LP PHNG N THI CNGCc iu kin thi cng c th hin trong cc bo co kho st tuy nhin v l do no c th cc bo c sai st chnh v vy vic kho st nhanh li cc iu kin trc khi thi cng l ht sc cn thit m bo vic thi cng c tin hnh mt cch tt nht. C my im chnh cn ch nh sau:Kim tra an ton ca ct, cu trc ca phng my.Cc iu kin mi trng xung quanh khu vc lm vic trn cao m bo an ton khi thi cng trn cao(vng dn c,nh my)Kim tra ngun in dng thi cng v ngun in dng cung cp cho thit b s dng sau ny.Kim tra h thng tip a, cu cp.Kim tra cc thit b c (nu c) ang s dng trong phng.Tuyt i trnh lm h hng v tt ngun ca cc thit b ang hot ng.Sau khi kim tra tt c cc im trn tin hnh lp phng n thi cng ti u nht ph hp vi thit b v s cho php ca c quan hoc ngi ch a im cng trnh.
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3. LP T PHN INDOORCc cng vic chnh ca lp t phn Indoor nh sau: Sp xp cc t BTS, t ngun, t hoc gi truyn dn theo bn v thit k. Nu thc t khng kh thi nh theo bn v c th thay i v tr sao cho hp l nht. C nh v tr cc t trn sn ca phng my, ch khi lm vic trn sn gi trnh lm hng sn gi ca phng my. T BTS phi bt xung trc ri c nh t sau, phi dng cc ming cch in. Cc bc c nh t BTS c minh ha theo cc hnh sau v tng t cho vic lp t t ngun v t truyn dn.
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LP T PHN INDOORKhoan l v dng vt n M12 bt ca BTS ln snKim tra thng bng ca mt tNng t ln cao hn v t chnh xc t BTS vo v tr
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LP T PHN INDOORLp t t ngun v t hoc gi truyn dn c cc bc tng t nh lp t t BTS tuy nhin c cc im cn ch nh sau:Vi t ngun, thit b vin thng l thit b s dng ngun 1 chiu v vy khi thi cng lp t cn ht sc ch cc cc ca c quy. Tuyt i khng c hai cc ca c quy chm vo nhau gy chp chy, c th gy thng tch v lm hng thit b. Mt nguyn tc u tin l c quy s c u cui cng v khi lm vic nht thit phi bc cc u cc ca c quy li trnh dng c kim loi chm vo. Cc dng c dng u dy c quy cng phi c bc bng dnh cch in.Mt im chung khi lp t cc t l v tr ca cc t khng c qu gn tng hoc qu gn iu ho trnh tnh trng b nc lm chp gy hng thit b. Trong qu trnh lp t cc t cn trnh va chm xy xt lm hng b mt sn ca t.
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LP T PHN INDOORCc li thng hay gp khi lp t cc t trong phng my
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LP T PHN INDOORLp t h thng cu cp trong phng hoc ngoi tri(nu cn thit)Cc bc lp t cu cp trong phng nh sau:o c v ly du cn thn v tr bt cu cp theo bn v thit k v ph hp vi v tr ca cc t c c nh.V tr ca cu cp so vi l Feeder ca phng my phi ngang nhau trnh nc c th theo Feeder v cc loi dy cp khc chy vo trong phng my.Cu cp phi nm trn mt phng ngang song song vi sn nh.Cu cp phi c cch in vi tng, nn hoc trn nh.M ca vt M8(ring cu cp ca Huawei) phi quay xung di.Cu cp phi c b tr hp l, trnh cc on d tha khng cn thit.
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LP T PHN INDOORCc nh di y miu t mt s li c bn khi lp cu cp ca Huawei
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LP T PHN INDOORSau khi lp t cc t v h thng cu cp tip tc tin hnh vic chy cc loi dy ngun v dy tn hiu gia cc t.C cc loi dy ngun ch yu sau:Dy ngun DC(thng l dy c tit din 25mm2 hoc 16mm2) gia t ngun v t BTS. Gm 2 dy 0V v 2 dy -48V, thit b Huawei th dy 0V mu en cn dy -48V l mu xanh dng.Dy ngun AC t hp AC ca h tng phng my n t ngun. Dy ngun AC c th l dy 3 pha hoc mt pha tu tng nh cung cp.Dy DC cho c quy, thit b ca Huawei th c quy gm 2 t nm ngoi t ngun v c ni vi t ngung bng 2 dy en (u vo cc dng ca c quy) v 2 dy xanh (u vo cc m cu c quy) dy DC dng dy 95mm2.
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H THNG NGUN VIN THNGChnh lu(Rectifier)Phn phi ACAC vo 1AC vo 2c quyPhn phi DCThit bH thng ngun c bn cung cp cho thit b vin thng
Background
computer
RS-485
RS-485
RS-232
~
Monitoring
module
RS-232
~
MODEM
PSTN
MODEM
Monitoring
center
AC distribution
Rectifiers
AC mains I
AC mains I I
7
...
...
Battery
DC distribution
Telecom equipment
AC
4
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-48 VDC
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-48 VDC
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~
1
9
6
3
0
8
5
2
F4
F3
F2
F1
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CC LI THNG GP KHI U DY NGUN
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CC LI THNG GP KHI U DY NGUN
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Lp t phn Outdoor c cc phn chnh sau:Lp t h thng AntenLp t h thng FeederLp t h thng khuch i nh ct (TTA) nu cLp t h thng tip a cho feederKt ni h thng anten v feeder qua cc connector.
4. LP T PHN OUTDOOR
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Cc bc c bn :D b Antenna khi v hp. Xc nh hng theo thit k mng.Nu b g antenna cha c th phi ko g antenna v lp g trc.Ko Antenna ln ct (dng Puli v thng).C nh antenna theo cc hng nh sn.Cc ch khi lp t Antenna:Tuyt i an ton khi leo ln ct (bt buc phi dng dy lng an ton).i vi ngi ko antenna o pha di phi c m bo him, khoang vng khu vc nguy him xung quanh chn ct.Antenna phi c lp trong gc ph l 45 ca kim chng st nh ct.Lp antenna v g antenna phi ch sao cho antenna khng b nghing theo phng thng ng. Trnh lp ngc cc ph kin ca anten gy kh khn cho qu trnh ti u ha mng.
LP T ANTENNA
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LP T ANTENNA
Mt s hnh nh v lp t antenna :
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Cc bc c bn lp t h thng Feeder:D b Feeder ra khi l cun v chia thnh cc si nh theo thit knh du 2 u ca tng si feeder trnh nhm ln khi kt ni feeder vi BTS.Tin hnh lm u connector(pha kt ni vo antenna)cho tng si feeder tht cn thn. Qun bng dnh vo 2 u feeder bo v khi ko ln ct.Ko feeder ln ct, c nh cc si feeder dc theo ct v cu cp ngoi tri theo cc th t nh sn.Kt ni feeder v antenna thng qua dy jumper(dy nhy).Tin hnh lm tip a cho feeder, a feeder vo trong phong my theo th t tng hng antenna.Kt ni feeder vi BTS cng thng qua cc dy jumper.nh du li cho cc si feeder bng nhn cng. LP T FEEDER
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CC CH KHI LP T FEEDER
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CC CH KHI LP T FEEDERCh khi lm bo v chng nc cho cc u connector
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CC CH KHI LP T FEEDERKhi a feeder qua l feeder vo phng c 2 ch :Th t cc si feeder phi ng trnh cho nhau, nhm lnPhi un cong to bng trnh nc cho cc si feeder i vo phng.
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CC CH KHI LP T FEEDER
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CC CH KHI LP T FEEDERCh : C bn im cn lm nhn nh du si feeder :im gn kt ni antennaim trc khi vo phng myim sau khi vo phng myim trc khi kt ni vo t BTS
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H THNG TIP A C BN
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5. LP T H THNG CNH BO NGOIH thng cnh bo ngoi no c cc phn chnh bao gm: cnh bo m ca, cnh bo khi, cnh bo hng ngoi, cnh bo nhit , m, cnh bo nc, cnh bo mt ngun Thit b ca Huawei cc sensor cnh bo s kt ni vi mt hp cnh bo(EAC box) v t hp cnh bo s chy v t BTS.Khi u cnh bo phi ht sc ch n cc v tr lp cc sensor sao cho ng mc ch s dng. Ring hp cnh bo ca Huawei phi ch gt nhng cng tc nh th cc sensor mi hat ng c.
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6. KIM TRA, HON THIN LP TCc bc kim tra lp t nh sau:Kim tra phn Indoor bao gm cc phn chnh nh t BTS, t ngun, cu cp,truyn dn, cnh boKim tra phn Outdoor bao gm cc phn nh antenna, feeder, jumper, tip a, connectorKim tra phn ngun DC ni t c quy vo t ngun, t t ngun ra cc thit b, dng ng h o in xc nh chnh xc cc kt ni. Kim tra cc u ct v mi kt ni.Kim tra phn kt ni trong t BTS, cc connector phi c vn cht bng cl v t vt.Kim tra cc lung truyn dn nu c. Kim tra cc dy ngun v dy tn hiu sao cho khng ct nhau,khng b buc vo nhau, tt nht l cch nhau t nht 10cm.Ch nh nhn cho ton b phn tn hiu cng nh phn ngun.Sau khi kim tra ton b phn lp t cng nh phn ngun tin hnh bt th thit b vi ngun DC ca Battery c sn. Khi thit b chy th ok, tt thit bDn v sinh phng my, kim tra li vt t tha sau lp t, lm bin bn t nghim thu(bao gm c ghi serial ca ton b thit b) v lm bo co nhng vn cn tn ti.
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Cc ch khi lp t Outdoor1. Anten phi lp thng ng, khng nghing, vn. Hng anten v nghing (downtilt) lp theo ng thit k. Sai s cho php vi hng l 50 vi nghing l 0.50. Ton b anten nm trong vng bo v 450 ca kim chng st. 4502. nh du hai u feeder trc khi ko ln ct trnh nhm ln, cho feeder. y l li rt nghim trng v thng xuyn xy ra. Li ny nh hng rt ln n cht lng mng do nh hng trc tip n uy tn ca cng ty.
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3. Khi ko feeder cn ko thng, khng bt cho, kp feeder vi khong cch 1.5. Khi kp feeder tun theo quy tc t di ln trn, t tri qua phi.Vi loi kp cp Huawei 3 l: Hai si di cng dng cho hng 0 (Sector 0) hai si gia dng cho hng 1, hai si trn cng dng cho hng 2. (p dng cho loi 3 l).
Hng 0 Hng 1 Hng 2
4. Lm tip a cho feeder ti cc im im: + u feeder trn nh ct, trong phm vi 1m t conector. +Trc im un t ct xung cu cp (trong phm vi 1m).+Trong khong 1m trc khi vo phng.+Nu di feeder trn ct > 60m cn lm tip a cho feeder ti im gia ct.Nu di cu cp > 20, cn lm tip a cho feeder ti im gia cu cp.Ch khi bt dy tip a cho feeder dy tip a phi chy xui xung di vi gc < 150. u dy tip a phi bt chc chn vo dy ng hoc ct.
Cc ch khi lp t Outdoor
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Cc ch khi lp t Outdoor5. Phi lm bng ct nc trc khi a feeder vo l feeder. Bn knh cong ca im un feeder > 20 ng knh feeder.
6. Sau khi chy ht dy feeder, dy jumper cho anten GPS cn dng Silicol bt cc ch h trn ca s feeder.
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Cc ch khi lp t Outdoor7. Bo v chng thm nc ti cc conector v cc im tip a feeder cn phi lm cn thn, theo ng quy cch.
8. Anten GPS phi c lp t ch thong vi gc m > 900 theo phng thng ng. Conector ca GPS phi c bo v chng thm nc.
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Lp t BTS xung sn nh1. Lp t t xung sn:Dng 04 n bt tm xung sang. Gia tm v mt sng phi cch in bng 2 tm cch in i kem thit b. N phi bt y cc thnh phn theo ng th t: vong nha cch in, long en phng, long en vnh.t t ln v dng Livo kim tra thng bng ca t. lch theo phng thng ng phi < 3mm. Nu cha cn bng phi dng cc ming m cho cn bng, sau bt cht t xung . Lp t t ngun v t Optix (nu c) tin hnh tng t. Cc t phi thng hng, lch cho php < 5mm.
Php cch in
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Cm card vo t BTS2. Cm card vo t: Sau khi lp t t xung sn tin hnh lp cc card vo trong t. Khi cm card phi ht sc cn thn, lp ng v tr, ng cch, phi i gng tay, eo vng cc in vi 1 u ni vo t ca t BTS. Khi lp t khng s tay vo bn mch.Sau khi card c lp vo ng v tr phi vn c c nh card li.
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V TR CC CARD TRONG T BTS 3606 HUAWEI
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Cch u ni dy lung t BTS v Metro vo DDF
Chy dy lung gia BTS v DDF: Dy lung ca BTS CDMA c 01 si, c 04 lung lp v cng E1_0 trn nc t BTS. (08 cp dy). B tr mu dy nh sau:
Mt tri phinMt phi phinMt phi phin Phin 1 Phin 2 Phin3 Phin4
Lung sMu dyThit bChc nngMt phinSi lung0Trng - DngBTS Pht 0Phi 110Trng - DngMETROThu 0Tri 110Trng - CamBTSThu 0Phi 110Trng - XmMETROPht 0Tri 111Trng - LcBTSPht 1Phi 111Trng - CamMETROThu 1Tri 111Trng - NuBTSThu 1Phi 111 - DngMETROPht 1Tri 112Trng - XmBTSPht 2Phi 212Trng - LcMETROThu 2Tri 222 - DngBTSThu 2Phi 212 - CamMETROPht 2Tri 223 - CamBTSPht 3Phi 213Trng - NuMETROThu 3Tri 223 - LcBTSThu 3Phi 213 - LcMETROPht 3Tri 22
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Lp cnh boCnh bo cho phng BTS Huawei gm 2 loi vi l ROBOT v EMERSON cch u ni tng t nhau. Cnh bo gm hai b phn chnh: hp cnh bo v cc sensor (thit b pht hin cnh bo). T cnh bo c bt cht vo tng phng my. Cc sensor cnh bo c lp vo cc v tr thch hp: + Cnh bo ca c lp vo ca ra vo, ch lp ng chiu ca hai phin cnh bo.+Cnh bo khi lp trn nc t BTS.+Cnh bo nhit , m lp trn nh t BTS hoc t ngun.+Cnh bo hng ngoi lp hng ra gia phng pha ca ra vo.+Cnh bo nc lp st mt sn phng my.Khi chy dy t cc thit b cm cnh bo vo hp cnh bo bt buc phi nh du du dy pha hp cnh bo l dy ca cnh bo g. Hin ti cc i cha c nhn cho cc dy cnh bo u vo hp cnh bo.
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V li s b tr thit b trong phng my, ct ca trm theo thc t. Bn v bao gm:+ Bn v chiu ng ca cc thit b b tr trong phng my bao gm t BTS, t ngun, Acquy, Metro, DDF, hp cnh bo, hp AC (Xem v d bn di).+ Bn v chiu ng v tr ca ct v phng my, cu cp outdoor (Xem v d bn di).
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V tr ca Ct anten v phng myGhi r cao ct
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Hnh chiu ng phng myXc nh ng v tr cc tGhi r khong cch gia cc t vi nhau, gia cc t vi tngXc nh ng v tr ca cua phng my, v tr l feeder
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CONSTRUCTION AND MACHINERY INSTALLATION FOR TELECOMMUNICATION CORPORATIONWWW.COMATEL.VN
