Viba Tran QUoc Cuong N04

7/27/2019 Viba Tran QUoc Cuong N04

1/19

Bo co viba s 1

I HC THI NGUYN

I HC CNG NGH THNG TIN & TT

BI BO CO

MN:VIBA S


2/19

Bo co viba s 1

MC LC

CHNG I: GII THIU CHUNG V H THNG VIBA MINI-LINK TN .......... 1

I Gii thiu khi qut v thit b .................................................................................... 1

1 Tng quan v h thng .................................................................................................... 2

1.1 Thng sk thut ca h thng...................................................................................... 2

1.2 Cu trc h thng Mini-link TN .................................................................................... 3

1.2.1 Phn trong nh ............................................................................................................ 3

1.2.1.1 Module truy nhp AMM (Access Module Magazine) ........................................... 3

1.2.1.2 Khi x l nodeNPU(Node Processor Unit) .......................................................... 5

1.2.1.3 Khi mrng lu lng LineTermination Unit(LTU)............................................. 6

1.2.1.4 Khi iu ch MM U2 (modem unit)..................................................................... 6

1.2.1.5 Khi chuyn mch v ghp knh SMU(Switch Multiplexer Unit) ................................ 6

1.2.1.6 Khi lc ngun PFU ( Power F i l ter Unit).............................................................. 7

1.2.2 Phn ngoi tri ...........................................................................................................7

1.2.3 Cu hnh, vn hnh v qun tr h thng ................................................................... 8

1.2.3.1.Cu hnh v vn hnh h thng ................................................................................ 8

1.2.3.2. Qun tr h thng ................................................................................................... 11

CHNG II: LP T H THNG ..................................................... 13

2.1. Khu chun b thi cng .................................................................. 13

2.2. Lp t trong phng ..................................................................... 13

2.3. Lp t ngoi tri........................................................................................................ 14

2.4. Mu bn v sau khi lp t ......................................................................................... 16


3/19

Bo co viba s 1

CHNG I: GII THIU CHUNG V H THNG VIBA

MINI-LINK TN

I Gii thiu khi qut v thit b

Thit b MINI-LINK l dng thit b truyn dn Viba ni ting th gii caERICSSON, hng sn xut thit b vin thng di ng hng u trn th gii.

c hn 500,000 b thit b MINI-LINK c bn ra trn ton th gii trong

c dng ph bin nht l trong cc mng thng tin di ng trong c cc

mng di ng ca Vit nam nh Vinaphone, Mobifone v sp ti l Viettel.

Thit b MINI-LINK c cc u im ni bt nh thit k gn nh, cng sut tiuth thp, dung lng ln t E1 cho n STM-1, s dng di tn rng t 7 n 38

GHz. Hn th na h thng im-im ca MINILINK c th c s dng trong

cc cu hnh vng ring, hnh sao v hnh cy cng vi kh nng nh tuyn c

tch hp bn trong thit b. Nhm p ng nhu cu ngy cng cao ca mng thng

tin di ng th hi tip theo, hin nay Hng Ericsson a ra th trng dng sn

phm thit b Viba MINI-LINK TN (Traffic Node) c kh nng kt ni im-a

im.

Traffic Node l mt khi nim ch cc trm Viba c mt vi lin kt v tuynti n. Cc h thng loi ny c hiu qu kinh t cao cng vi cc chc nng nh

tuyn v ghp knh. Mt khc n cn c khnng bo v tt cho truyn thng

trong lp mng.


4/19

Bo co viba s 2

Hnh 1.1. H thng Mini-link TN

1 Tng quan v h thng

1.1 Thng sk thut ca h thng Tns: 7 GHZ Cng sut pht: + 28dBm Ngng thu: BER 10 exp -3 Ngng thu: BER 10 exp -6 ngten: 2.4m Gdb= 42.5dBm ng dn sng: WC 42 0.1dBm Dung lng E1, E2, E3, STM1 Bng tn hot ng vtuyn ctn s trung tm : 7GHZ Cu hnh v qun l ti ch hoc t xa bng phn mm trn my PC H trcc cu hnh: im-im, im-a im, vng ring, hnh sao, hnh cy. H

trchc nng nh tuyn.

Hnh 1.1. Mt dng cu hnh h thng minilink TN ti trm


5/19

Bo co viba s 3

iu kin lm vic: Cc khi trong nh:

Nhit : -5 +45C.m: 5 95%.

Cc khi ngoi tri:Nhit : -33 +45C

m: 5 100%

1.2 Cu trc h thng Mini-link TNMt phn t mng Minilink TN xt t kha cnh phn cng v lp t c chia thnh

hai phn:

Phn trong nh: gm module truy nhp AMM v cc module chc nng. AMMcgn trc tip ln rack 19.

Phn ngoi tri: h trnhiu bng tn khc nhau bao gm: 1 anten, 1 khi RAUv cc ph kin lp t ng b. Khi s dng cu hnh bo v s cn 2 khi RAU

v 1 hoc 2 anten. Nu dng 1 anten th hai khi RAU c kt ni n anten

thng qua b chia.

1.2.1 Phn trong nh

1.2.1.1 Module truy nhp AMM (Access Module Magazine)

L module truy nhp trong nh c mt backplane gm nhiu khe cm lin kt tn hiu iu

khin, ngun cung cp, lu lng d liu. Cc module c cm vo cc khe khc nhau trn AMM.

a AMM 2p

- AMM 2p ph hp cho cc trm u xa dung lng va v nh hay cc trm lp.

- Kch thc 1U.

- C 05 khe cm k hiu: 00/module LTU, 01/module NPU, 02 v 03 dnh cho module MMU v mt

khe cm qut lm mt.


6/19

Bo co viba s 4

- Ngun cung cpAMM 2p c cp ngun -48V kt ni n NPU2. Ngun phn phi t NPU2

n cc module chc nng khc qua bus ngun trn backplane ca AMM.

- Cng sut tiu th cc i: AMM2p = 160W (ph thuc vo cu hnh ca trm).

- Cng sut tiu th cc khi: NPU2=9W, LTU12x2=4W.

Ngun -48V- H thng lm mt AMM 2p ca Viettel khng s dng qut lm mt. Lung khng kh lm mt t

nhin ivo t bn phi v thot ra bn tri ca AMM.

b AMM 6p

- AMM 6p ph hp cho cc trm dung lng ln

- C hai loi AMM 6p kit v AMM 6p B kit ph hp vi 2 loi MMU2 v MMU2B mi.

- Kch thc 3U.

- C 08 khe cm k hiu 00/PFU2, 01FAU2, 07/NPU8x2. Cc khe cn li 02, 03, 04,05, 06 dnh cho

SMU, MMU, LTU. Khi cm thm LTU hay s dng cu hnh bo v th module LTU v MMU bo

v s lp vo cc khe cm chn (V d hai MMU cmvo hai v tr lin k 03, 04; module LTU 16x2

cm vo vtr 06 nh hnh vdiy tr LTU155e s dng cho giao din quang). Vi AMM 6p B

th khe cm k hiu00/PFU3, 01PFU3, cn FAU c hng dn v tr lp ngay trn thit b

- Ngun cung cp AMM 6p yu cu ngun -48V kt ni n PFU2 hoc PFU3. Ngun phn phi

t PFU2hoc PFU3 n cc module chc nng khc qua bus ngun trn backplane ca AMM.Cng

sut tiu th cc i: AMM6p = 316W (ph thuc cu hnh).Cng sut cc khi: NPU8x2=9W, PFU2

+ FAN2 = 16W, LTU16x2 = 5W, SMU2 =6W

- H thng lm mt


7/19

Bo co viba s 5

- Module FAU2 ng b theo AMM 6p gm 2 khi qut c chc nng lm mt choAMM. Lung

khng kh i vo tpha trc bn tay phi, thot ra pha sau bn tay trica AMM

1.2.1.2 Khi x l node NPU(Node Processor Unit)

Cc chc nng chung ca NPU:+ Chuyn giao lu lng.

+ Gim st v iu khin h thng.

+ nh tuyn IP cho kt ni DCN.

+ Giao din Ethernet kt ni n mng LAN.

+ Lu tr, qun l truy nhp v d liu cu hnh.

+ Giao din USB cho kt niLCT.

C ba loi NPU:

a NPU2

- NPU2 dng cho loi AMM 2p. NPU2 c dung lng 04 lung E1, giao din USB

ktni n my tnh v giao din Ethernet 10/100 BASE-T.


8/19

Bo co viba s 6

b NPU 8x2

-NPU 8x2 dng cho loi AMM 6p.NPU 8x2 c dung lng 08 lung E1, giao din

10BASE-T Ethernet kt ni n mytnh, 03 cng Input/Output dnh cho ngi s dng.

c NPU1_B:- NPU1_B dng cho loi AMM 6p.L module ci tin, pht trin t NPU 8x2. NPU1_B c dung

lng 08 lung E1, giaodin USB kt ni n my tnh, cng 10BASE-T Ethernet, 03 cng

Input/Output dnh cho ngi s dng.

1.2.1.3 Khi mrng lu lng LineTermination Unit(LTU)LTU c chc nng cung cp giao din, kt ni lu lng t cc lung SDH, PDH bnngoi. LTU c 02

loi:

a LTU 12x2

Dng cho AMM 2p, cung cp thm dung lng 12 lung E1.

b LTU 16x2

Dng cho AMM 6p (B), cung cp thm dung lng 16 lung E1.)

1.2.1.4 Khi iu ch MM U2 (modem unit)- MMU2 l giao din trong nh n khi radio, s dng iu ch C-QPSK. MMU c ccloi vi dung

lng: 2x2, 4x2, 8x2, 16x2 Mbit/giy

1.2.1.5 Khi chuyn mch v ghp knh SMU(Switch Multiplexer Unit)- SMU s dng vi cu hnh dphng 1 + 1. SMU cng c thc cu hnh giaodin n thit b

Minilink E. SMU h trcc giao din:

+1xE3 + 1xE1

+1xE2 hay 2xE2

+2xE1


9/19

Bo co viba s 7

+2xE0 (2x64 Kbps) s dng cho kt ni IP DCN

+O&M (V24)

1.2.1.6 Khi lc ngun PFU ( Power F i l ter Unit)- PFU kt ni trc tip n ngun bn ngoi, c chc nng lc v phn phi ngun n cc khi plug-in bn trong thng qua backplane. Module PFU2 c s dng cho loiAMM 6p. Module PFU3 c

s dng cho loi AMM 6p B.

1.2.2 Phn ngoi tri

Khi v tuyn RAU (Radio Unit) Chc nng c bn ca khi RAU l pht, thu tn hiu v tuyn, chuyn i dng tn hiun v

i trn cp ng trc kt ni RAU v MMU. RAU kt ni n anten qua giao din ng dn

sng. Qu trnh thay th hay ngt kt ni ca khi RAU khng nh hng n anten .

RAU c cp ngun t MMU thng qua h thng cp ng trc. Hai loi RAU ang s dnghin nay l RAU1 v RAU2, chng khc nhau v thit kc kh. RAU1 RAU2

Giao din kt ni bn ngoi ca RAU gm c:1. Kt ni cp ng trc n MMU, connector 50 loi N.2. Cc u tip t cho RAU.3. im kim tra bng ng h hiu chnh anten.4.

Hai n led cnh bo

-Led : cnh bo khi RAU.

-Led xanh: bo cngun. K hiu RAU: RAU X Y F

X: cho bit loi thit kc kh (RAU1 hay RAU2).


10/19

Bo co viba s 8

Y: cho bit loi MMU ph hp tng ng. V d nu trng khng vit tc l phhp vi MMU

c iu ch C-QPSK.

F: cho bit di tn.

1.2.3 Cu hnh, vn hnh v qun tr h thng Phn c lp t trong trm ca mt h thng MiniLinkTN l mt khi n

cha bn trong cc card radio terminals dung lng trung bnh v cc card khc

cung cp cc giao din t E1, E2, E3 n STM1. Cu trc modul ha ca h thng

cho php cc card giao din mi c th cm thm vo ngay c khi h thng ang

hot ng. Chc nng nng cp phn mm tng m bo h thng vn cung

cp lu lng khi thc hic cc cng vic thay th hoc nng cp. Vic nh tuyn

lu lng c iu khin bng phn mm ti thiu ha cc cp u ni, trong khi

tnh nng co-sites to khnn tch hpvi cc trm Mini-Link E ang tn ti mt

cch d dng

1.2.3.1.Cu hnh v vn hnh h thngThc hin cc bi kim tra sau trn cc thit b u xa, u gn v ghi li kt qu vo bn

ghi kim tra MINI-LINK E:

Bc 1: Cc tham s thit lpMc ch: kim tra rng cc tham s chnh xc nh thit kc s dng.

Kim tra, bng cch s dng my tnh PC ci phn mm MSM, rng tt c cc tham

s thit lp c ci t theo mu S liu lp t.

Bc 2: Cp ngun DCMc ch: kim tra rng ngun DC chnh xc c cung cp cho MMU.

- S dng vn k s o in p DC gc cp DC kt ni vi MMU. Ghi ligi tr trong bn ghi kim tra.

Bc 3: Cng sut u ra my pht.Mc ch: kim tra rng cng sut u ra tng ng vi gi tr thit k.


11/19

Bo co viba s 9

- Nu cng sut ra khng thay i trong qu trnh ci t, phi ghi li gi tr tbn ghi kim tra ca nh my. (Khng yu cu o).

- Nu cng sut ra c thay i qua MSM, ghi li gi tr . (Khng yu cuo).

- Nu cng sut ra c thay i bng vic lp thm b suy hao c nh hocchnh bng tay b suy hao bin i, o cng sut ra bng my o cng sut RF

v ghi li gi tr vo bn ghi kim tra.

- So snh gi tr vi gitr thit k. Lin h vi b phn thit k nu cc gi trny khc nhau.

Bc 4: Mc u vo RFMc ch: kim tra rng mc vo tng ng vi gi tr thit k.Trong h thng cu hnh im-im, mc thu trong mi khi v tuyn cn c o 2

ln. Mt ln vi tn hiu vo t khi v tuyn u xa 1, v mt ln vi tn hiu vo t

khi v tuyn u xa 2.

- c mc u vo RF thu c, trn mn hnh mt trc ca MMU hoc bngcch s dng my tnh PC ci phn mm MSM. Ghi li mc ny. B phn thit k

cung cp cc mc cho c hai khi v tuyn trong h thng 1+1. So snh cc kt

qu thu c vi cc gi tr ny v ghi li chng trong bn ghi kim tra.

- So snh mc u vo RF vi mc tnh ton trong thit k ng truyn. Hi kinb phn thit k nu sai lch lnhn 3dB trong iu kin khng b phading.

Bc 5: Kim tra nhiuMc ch: kim tra rng khng c cc tn hiu gy nhiu c th lm suy gim cht

lng.

- Truy nhp thit b u cui xa qua chng trnh MSM v tt my pht xa.Ch :Trong h thng im-im, c 2 my pht phi c tt ngun.

- c mc u vo RF thu c. Nu mc ny 90 dBm, phi tham kho kin ca b phn thit k. Sau khi thc hin bi kim tra, kch hot cc my

pht ln na v khi phcthng tinlin lc qua tuyn.

Bc 6: Kim tra cnh bo gn


12/19

Bo co viba s 10

Mc ch: kim tra rng cc khi trong nh v ngoi tri ang hot ng tt.

- Kim tra trong MSM hoc trn mn hnh cc b ca MMU rng khng c cccnh bo u gn no c kch hot.

Bc 7: Cp lu lng v kim tra vic u niMc ch:kim tra rng lu lng trong mi khi ang hot ng tt v tt c

cc im u ni cp lu lng l tt.

- Kim tra rng mi tn hiu nhnh (2Mbit/s, 8Mbit/s hoc 34Mbit/s) c th cloop tr li t trm xa ti u ni cp lu lng. Nu lu lng c nh

tuyn, bn trong AMM, vic kim tra ny phi c thc hin t trm xa c

lu lng c loop li.

- Thc hin kim tra nhanh trn mi nhnh bng my o BER kim tra rnglu lng angtruyn qua h thng.

- Kch hot Cnh bo Lu lng u vo trong khi ci t lu lng, trong thigian kim tra nhnh . Trong khi kim tra nhnh, kim tra rng Cnh bo

Lu lng u vo s bin mt i vi nhnh .

- Nngnh tng dy cp kim tra, kim tra vic u ni cthch hp haykhng.

Bc 8: Kim tra chuyn i cu hnh im-imMc ch: kim tra tnh nng ca MMU khng cn thit, cc khi v tuyn v

chuyn mch SMU.

- thc hin vic kim tra ny, m bo rng my pht v my thu v tuyn 1ang hot ng v ch chuyn mch c t t ng. Ni my o BER

vo mt trong cc nhnh v truyn lu lng.

- Ngt ngun ca MMU1 v kim tra, trn ca s thit b MSM, cc chuynmch h thng ca my pht v thu khi v tuyn 2. Kim tra trn my o BER

xem lu lng c khi phc li hay cha sau khi chuyn t khi v tuyn 1

sang khi v tuyn 2.

- Lp li vic kim tra chuyn i i vi khi v tuyn 2 (RAU 2) v MMU2.


13/19

Bo co viba s 11

- Kim tra chuyn i khng cn g: u ni my o BER vi mt trong ccnhnh v truyn lu lng. Truy cp qua thit b MSM v vic kim tra s

c tin hnh. t ngng cnh bo AGC cho khi RAU thu tn hiu mc

trn mc thu c. Kt qu l, xy ra s chuyn i ti khi v tuyn khc.Cc li bit phi khngkhng xut hin trn my o BER.

1.2.3.2.Qun tr h thng

Bc 9: Kim tra cht lngMc ch: kim tra cht lng hot ng ca chng vi ba sau mt thi gian hot

ng bnh thng c suy gim hay khng.

- Thit lp li s liu v cht lng cho c haibn chng vi ba bng cch s dngmy tnh PC ci phn mm MSM. Tnh nng thit lp li c thtm thy trong

Ca s Qun tr Thit b (View menu). Nghincu kh nng hot ng cho c

hai thit b u cui, v d sau 24h.

- Nu khngc s suy gim cht lng, vic kim tra l OK. nhkm cc ktqu kim tra vi Bn ghi kim tra ca MINI-LINK E sau khi kim tra xong.

- Nu cht lng b gim, thc hin o cho 24h tip theo. Nu cht lng tiptc b gim, phi kim tra ng truyn v th tc lp t.

Bc 10: Kim tra EAC, RAC v NCCMc ch: kim tra vic u ni gim st mng MINI-LINK.

- u ni my tnh PC ci phn mm MSM vi cng O&M trn SAU v dmng bng cch la chn Scan Local (d cc b) trong danh sch mng. Kim

tra xem tt c cc thit b u cui trong danh sch NCC m rng, EAC, v

RAC c c hin th trong ca s mng MSM.

Bc 11: Knh phc v (SAU)Mc ch: kim tra vic thit lp knh phc v.

- m bo rng knh phc v c thit lp hp l.- Khi s dng SAU Exp 2: Thc hinmt cuc gi th.

Bc 12: u vo ngi s dng (SAU)


14/19

Bo co viba s 12

Mc ch: kim tra cc im u ni USER In.

- Kch hot cc cng USER In (u vo ngi s dng) s dng v kim tra chs trong MSM.

Bc 13: u ra ngi s dng (SAU)

Mc ch: kim tra cc im u ni u ra bn ngoi.

- Ngt ngun DC cho 1 hoc vi MMU qua AMM v kim tra rng cc cnh boA v B ang kch hot.

Bc 14: Kim tra Cnh bo QutMc ch: kim tra vic u ni cnh bo Qut.

- Ngt cp cung cp ngun DC cho khi qut. S dng my tnh PC ci phnmm MSM kim tra rng cc cnh bo A v B ang kch hot.


15/19

Bo co viba s 13

CHNG II: LP T H THNG

2.1. Khu chun b thi cng

1. Trc khi di chuyn n v tr trm cn ch :- Kim tra dng c lp t v trang b bo hlao ng.- Kim tra tnh trng sc khe ca cc thnh vin trong nhm.

- Kim tra thng tin v trm v iu kin vo trm tin hnh lp t.

- Kim tra thng tin v vt t, thit b. c bit cn ch mt s vt t phnh

DY T, lt, bng dnh, cao su non

2. Cc bc chun bkhi n v tr thi cng:

- Kim tra slng v chng loi thit b theo thit k nu pht hin sai st g phi

bo co vi cn b phtrch a ra bin php x l ph hp.

- Kim tra cc iu kin thi cng phi m bo an ton cho con ngi v thit b.

2.2. Lp t trong phng

Khi lp t trong phng cn ch :+ Ch n cc thit b trong phng.

+ Do kim tra cc ngun cung cp.

+ Chn v tr lp t ph hp.

+ Thi cng theo ng tiu chun chung.

Tham kho cc bc lp t trong phong theo bng ch dn sau.


16/19

Bo co viba s 14

Cc li thng gp khi lp t trong phng:+ Khng cnh rack 19 bng c n

+ Khng vn cht cc thit bvo rack 19

+ i dy khng gn gng+ Thiu nhn, nh du nhn sai

+ Ra nhm lung trn phin krone

+ Thiu dy t, lp dy t sai

2.3. Lp t ngoi tri

Nhng im cn ch khi lp t phn Outdoor:+ Lp t tuyt i ch n an ton.

+ Khng tc ng n cc thit b c sn trn ct.

+ Cc thit b lp trn cao phi c lp t chc chn.

+ Tun theo thit k kho st.


17/19

Bo co viba s 15

Kim tra thng s thit bTin hnh kim tra mt s gi tr thit b (theo s liu thit k)

1. Chng loi ca khi RAU

2. Kch thc anten

Phn bit loi RAUMt s loi RAU thng gp:

LOI RAU (RADIO UNIT)

Thit b 15GHz Thit b 7 GHz

K hiu Bng

tn

u

cao

u

thp

K hiu Bng

tn

u

cao

u

thp

RAU 1

15/21 HP

J X RAU 1

7/31 HP

G X

RAU 115/25 HP

J x RAU 17/35 HP

G x

RAU 1

15/22 HP

K X RAU 1

7/33 HP

E X

RAU 1 K X RAU 1 E X


18/19

Bo co viba s 16

Cc bc lp t

Mt s li c bn

2.4. Mu bn v sau khi lp t

Sau khi thc hin cc phn cng vic lp t cn v li s ton b trm. Ghi rcao anten, hng, chiu cao ct, chiu di cu cp, v tr phng my(tng), s

cc thit b trong phng my(c ghi r khong cch).


19/19

Bo co viba s 17

V d:

Documents

Viba Tran QUoc Cuong N04