BTS MAINTENANCE1.Hardware system2.Typical case1.System Position and Role in MoileNetwor! In a "SM#"PRS networ!$ %&"1' B('1( is t)e radio transcei*er +or "SM BSS. BSC controls BTS$ and one BTS ser*es a certain cell or se*eral cells. Ais inter+ace connects BTS to BSC. It )elps BSC to mana,e radio reso-rces$ and ac)ie*e radio transmission wit) MS and rele*ant control +-nctions t)ro-,) .m inter+ace.Rac! str-ct-reSi,nal /owMod-le +-nctionPanel and indicator o+ CMBCMBPWR RUN SYN CLK MST STAM/S RST FPWRLED Color Name Meaning Working Mode1 Green/Red PWR Power LED Green ON: Normal Red ON: Alarm OFF: Power off or other reasons2 Green RUN Runnn! LED Green flashn! at " #$: %oot s runnn! Green flash at 1 #$: A&&l'aton s runnn! Others: ()stem s a*normal+ Green/Red (,N-lo'. s)n'hron$aton mode LED Green ON: ()n'hron$aton 'lo'. of the A*s nterfa'e networ. Green flashn! at 1 #$: ()n'hron$aton 'lo'. of the (D# networ. Red flashn! at 1 #$: E1 frame out/of/s)n' alarm Red ON: E1 lne s *ro.en or not 'onne'ted OFF: Free runnn!" Green/Red -L0 -lo'. LED Green ON: Networ. s)n'hron$aton slo'.ed Green flashn! at 1 #$: Lo'.n! the &hase Red ON: -lo'. fault1 Green 2(3 A't4e/(tand*) LED Green ON: A't4e state Green OFF: (tand*) state5 Green/Red (3A (tatus LED OFF: Runnn! normall) Green flashn! at 1 #$: ()stem ntal$aton Green flashn! at " #$: software loadn! Red flashn! at 1 #$: LAPD ln. ds'onne'ton Red flashn! at " #$: #DL- ln. ds'onne'ton 6 Red ON: Other alarms 7su'h as tem&erature8 'lo'. and frame num*er alarms9Panel and indicators o+ C0.LED PositionColor Name Meaning Working Mode1 Green FPOForward &ower out&ut LEDON: NormalOFF: A*normal2 Red (WR1:(WR le4el/1 alarm LEDON: 3here s an alarmOFF: 3here s no alarm+ Red (WR2:(WR le4el/2 alarm LEDON: 3here s an alarmOFF: 3here s no alarm" Green PWR LNA &ower su&&l) LEDON: NormalOFF: A*normal1 Red LNA LNA alarm LEDON: 3here s an alarmOFF: 3here s no alarm0TR. PANE1 IN0ICAT2RS0TR. PANE1 IN0ICAT2RST)e I0 switc) BTS3T4PE 11''5 B('1( 11'15 B(112 111'5 M(2'2 11115 M(2'6 BTS3N2 No. o+ t)e cainet o+ t)e same site ''5 Basic cainet '15 E7tended cainet 1 1'5 E7tended cainet 2SLAVE1_PORT TheE1portofthe!"#$$!#%etto $o%%e$t e&te%'e' $!#%et 1 (() Port E of the !"#$ $!#%et (1) Port F of the !"#$ $!#%et 1() Port * of the !"#$ $!#%et 11) Port + of the !"#$ $!#%etSLAVE,_PORT TheE1portofthe!"#$$!#%etto $o%%e$t e&te%'e' $!#%et , (() Port E of the !"#$ $!#%et (1) Port F of the !"#$ $!#%et 1() Port * of the !"#$ $!#%et 11) Port + of the !"#$ $!#%etSATE Whetherto-"ethe"!te..#te A#" .#%/ or %ot () Co00o% A#" 1) S!te..#te A#"AB1S_PORT O2M port %-0er (() Port A (1) Port B 1() Port C 11) Port 3AB1S_TS TheO2MLAP3t#0e".oto% the A#" #%terf!$e ((() TS14 ((1) TS51 (1() TS5( (11) TS,6 1(() TS,7 1(1) TS,8 11() TS,4 111) TS,9CMBS1' dip switc) s)ow as t)e tale ellowEIBS2S4S6S5EIBE1 color code1"reen red 1E1AIN8 T)e 9rst E1 inp-t 16 "reen red 2 E1AIN:( Bl-e red 1 E1A2.T8 T)e 9rst E1 o-tp-t 2' Bl-e red 2 E1A2.T:2 "reen lac! 1 E1BIN8 T)e second E1 inp-t 1; "reen lac! 2 E1BIN:< Bl-e lac! 1 E1B2.T8 T)e second E1 o-tp-t 21 Bl-e lac! 2 E1B2.T:Indoor alarm color code1.w)ite l-e:: 12. Blacl-e:: :'=.w)ite oran,e:'6. lac! oran,e:';. ,reen w)ite::'>. lac! ,reen:::'?. w)ite rown:'(. lac! rown::':con9,ration is not proper in BSC .Cell interr-ption alarmReason.1:t)e BCCH tr7 is oAReason.2:0TR. is not a*ailale on t)e cc) tr7.Reason.=:0TR. is not properly connected.Cascadin, o+ sites@or t)e cascadin, o+ two sites we need to +ollow t)ese steps.1.Connect t)e E1 cale at port 1 on t)e top o+ ts +or t)e master sites inti,ration.2.As master site is on air -se anot)er E1 cale to connect t)e port 2 o+ t)e ts.=.1oop ac! t)e 9rst e1 o+ port 2 and c)ec! t)e stat-s o+ -pper CMB sync) and cl! stat-s$i+ is ,reen t)en its o!BSCR alarmBolta,e standin, wa*e ratio=.'DBSCRD1.; BSCR1 alarmBSCRD=.' BSCR2 alarm sitemaster to test t)e *al-e o+ t)e BSCRReason.1:C0. prolemReason.2:AEM prolemReason.=:cale connection prolemcontin-e6.T)e 9rst E1 o+ port 2connets to t)e transmission medi-m +or t)e sla*e site.;.connect t)e e1 at sla*e site at port 1.>.c)ec! t)e id port dip set and t)at s)o-ld e accordin, to 2AM timeslot =' or =1.t)e mastes ts -se 1> 2AM time slot. dip con9,:1>:'''=':'1'=1:''1T)ese we set on S1 o+ id port and dip switc) no is '$1$2.THANE 42.