2 LỜI GIỚI THIỆU

8/8/2019 2 LI GII THIU

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Quy trnh lp t BTS Phng K thut

Trang 1

Phn 1

Chun b mt s iu kin c bn

trc khi lp t thit b


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Quy trnh lp t BTS Phng K thut

Trang 2

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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Quy trnh lp t BTS ansv

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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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Trang 6

Phn IICc Quy trnh lp t


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Trang 7

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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Trang 8

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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Trang 9

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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Trang 14

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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Trang 26

-

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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Trang 29

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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Trang 38

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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Trang 43

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).


44/44


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.

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