A Presentation About Outdoor Installation

Submitted by: Kallol GhoshKallol Ghosh1A Presentation About Outdoor Installation

1INTRODUCTIONKallol Ghosh2A cell site is a site where antennas and electronic communications equipment are placed, usually on a tower or other high place, to create a cell (or adjacent cells) in a cellular network. Cellular (cell) phones first became widely available in the United States in the 1990s, but since then their use has increased dramatically. The widespread use of cell phones has led to cell phone towers being placed in many communities. These towers, also called base stations, have electronic equipment and antennas that receive and transmit radio frequency (RF) signals. According to the RF Plan we have to install the antenna at a proper height on tower. Installation procedure is different for many others company, but there are no any complexity regarding that installation. In case of Nokia Siemens Network they dont use any loop or bend on RF cable. Reliance dont use any Jumper cable for a cell site. In this presentation we have discussed about the installation procedure and quality point of outdoor equipments. INDEXKallol Ghosh3 TITTLEInstallation & Quality PointPAGE NORF Plan & Requirement List4-5Antenna Line6Antenna Installation & Quality Point7-11Jumper cable Installation & Quality Point12-16RF Cable & Connector Installation & Quality Point17-23Weather Proofing Kit24-25Earthing kits26-29Roxtec30-31Surge Arrestors32Cable ties34Labels353RF PLAN:Kallol Ghosh4Name: Kallol GhoshRF PLANSITE NAME : TECHNO CENTRESITE ID : A234M08ADDRESS : 35, B.C.ROAD, BURDWAN,W.B.PARTICULARSSITE 1SITE 2SITE 3AZIMUTH60180300HEIGHT40m44m48mMECHANICAL TILT000ElECTRICAL TILT362TYPE OF THE ANTENNAX43210X01234X21034Requirement List :5particularsSpecificationStatus1.AntennaGSM900 Panel Antenna,65beam width , cross polarized antenna3Jumper Cable1/2" diameter, 1m, 3m, 7/8"M & 7/8"F connector12RF Cable or Feeder Cable7/8", copper RF Cable300mRF Connector7/8M12Earthing KitsCopper strips, Ring type copper lugs12RF Clamps, cable tiesSix way35,100Grounding Cable35sq.mm. y-green grounding cable,16sq.mm. green grounding cable108m8mRoxtec and Screw4 way, Full thread steel screw1,8Surge Arrestors-------6Weather Proofing KitsPVC(6cm),Rubber,Butyl3Labels100Antenna Line:6

AntennaJumper cableRf to jumper connectorEarthing kitRf clampRf cableRoxtecCable trayEgbThe line between the Antenna and the BTS is known as antenna lineIn antenna line there are following things:Rf cableRf connectorJumper cableEarthing kitWeather proofing kitRoxtecSurge ArresterKallol Ghosh:PROCEDURE TO INSTALL AN ANTENNA Kallol Ghosh7

First we have to make the connection between antenna port and jumper cable and connection should be weather proofed, and other end of jumper cable should be covered by polythene. If we give mechanical tilt then it should be done at bellow, electrical tilt should be avoided at this condition because, it should be change by touching the tower body.

ANTENNA INSTALLATION :Kallol Ghosh8We have to take the antenna up on tower with the help of pulley or ropeKeep the antenna away from tower body by pulling the rope carefully.

8BTS9Kallol GhoshAccording to the RF Plan we have to set the antenna at proper height with the pole mount by using the antenna clamps with the appropriate electrical tilt.AntennaJumper ConnectorJumper Cable35sqmm yellow green grounding cableVCTRF connector & Jumper connectorEarthing KitsEGBRF CableHCTEarthing kitS-bendSurge ArrestorI/D Jumper cableIGBEGB9KALLOL GHOSHQuality Check Point Of AntennaKallol Ghosh10Height of the antenna as per the RF PlanTilt of the antenna as per the RF Plan

Type of the antenna as per the RF Plan

Azimuth of the antenna as per the RF Plan

All the nuts bolts of the antenna should be properly

Lock nuts should be provided

Label should be provided of the back of the antenna

Electrical tiltMechanical tiltNuts bolts or lock nutsKallol Ghosh11

Label should be provided of the back of the antennaType of the antenna as per the RF Plan

GSM 900 Antenna

Single port antenna Dual port antennaHex port antennaQuad port AntennaSpecification of Jumper Cable:Kallol Ghosh12Size - inchesInner core Pure copper cylindrical tube of inches filled with Aluminum.Outer core Pure Copper cylindrical tube like spring.Soft Insulation White soft foam.Hard outer insulation Black insulation material.Impedance 50.Flexibility- High.Length- 1m ,1.5m, 2m, 2m.5m, 3m, 5m, 7 m,10m, 15m.

Inner coreSoft insulationOuter CoreOuter insulationJUMPER CABLES INSTALLATION :Kallol Ghosh13

Jumper cableRF connectorRF CableNow routing the outdoor jumper cable properly by using the cable ties and connects it to the RF Cable by using the 7/8M RF connector. Indoor Jumper should b connected with BTS port.

Combination of connector in Jumper cable:

Kallol Ghosh147/8 F 7/8 M7/8 M 7/8 M7/8 F 7/8 F7/8 M 7/8 L.M7/8 M -7/8 L.MApart from these some more arrangements are

7/8 M 7/16 M7/8 M 7/16 F7/8 F 7/16 M7/8 F 7/16 F

Outdoor jumper cable 3mIndoor jumper cable - 1 or 1.5 m

Jumper cable

Quality Check Point Of Jumper Cable:Kallol Ghosh15In case of U-Loop of both jumper cable should be parallel There should not be any sharp bend in the jumper cableIn case of close loop there should be two cable ties at the touching pointRouting of Jumper cable should be done by using cable tiesDistance of the two cable ties should be uniform and approx 200mm.At the bend in the Jumper cable at least two cable ties should be provided at touching edgeParallel U-loop

Close loopCable ties

Cable ties

Kallol Ghosh16Labeling should be done with both the end of jumper cableRouting of Jumper cable should be together and along with the tower bodyTermination of Jumper cable should be verified by VSWR measurementLast hand of PVC tape should be bottom to top

Labeling on Indoor jumper cable

Proper taping on jumper connectorSpecification Of RF Cable:Kallol Ghosh17Size of the inner core is equal to the size of normal co-axial cable.As its a hollow , so it increase surface, decrease resistance, increase capacity, increase flexibility, lesser costInner Core : Pure Copper.Soft Insulation : FumeOuter Core : Pure Copper Cylindrical Tube.Outer Insulation : Hard Insulation , black in color.Size Of The Cable : diameter 5/4 or 7/5Impedance : 50

Feeder Cable

Inner coreSoft InsulationHard outer insulationOuter coreRF CABLES INSTALLATION FIXING THE RF CABLES WITH RF CLAMP:

Kallol Ghosh18

Cable trayRF clampWeather proofing tape After that we have to place the RF Cable sector wise on the cable tray by using the RF Clamp (6-way), and mark on the RF Cable according to the sector .RF Clamp:Kallol Ghosh19

1 way RF clamp2 way RF clamp3 way RF clamp6 way RF clampC-clamp made of GI

Dummy clampKallol Ghosh20Now the bending portion of RF cable should be carefully placed by using a dummy clamp at the junction point between VCT and HCT. Then another earthing kit should be attached along with RF cable by using the cable ties and then RF cable should be placed on HCT by using the RF clamp. Earthing kit should be straight to the shelter and connect the grounding cable with EGB properly

Bending portion of RF cableEGBRoxtecHCTRF Cable

RF CABLES ConnectorCONNECTION BETWEEN RF AND JUMPER:Quality Point:Kallol Ghosh21Routing of RF cable through the RF clam should be according to the sector, there should not be any cross routing of RF cable.Connection should be made properly and attach the weather proofing tape properlyConnection should be made by hand tight.

RF Connector :Kallol Ghosh22BaseOuterPort

BaseOuter7/8 female connector7/8 male connectorQuality Point Of RF Cable:Kallol Ghosh23There should be a label on RF Cable near RF to Jumper cable, and RF and RoxtecPosition of RF Clamp should be uniform from the either edge of cable trayRouting of RF cable should be in pair and parallelDistance of the two RF Clamp should be 0.9 or 0.6 on HCT.Labeling of RF cable in side the shelter and outside the shelter should be visible from bottom

Routing of RF cable through the RF clamp should be according to the sector, there should not be any cross routing of RF Cable.Bending of RF Cable should be greater than 300mmS-Bend on RF Cable should be properly

Labeling on RF cable

S-bend

Parallel RoutingNo cross routing, Sector wise placeWEATHER PROOFING

Kallol Ghosh24All ourdoor antenna line connections, grounding kits and wall entries have to be weather proofed. Connections where weather proofing is needed:Feeder to jumper at antenna end.Feeder to antenna Direction of last hand of PVC tape should be bottom to top.

PVC TapeWEATHER PROOFING:Kallol Ghosh25

FEEDERS WEATHER PROOFING KIT (BUTYL TAPE,3/4 PVC TAPE & ,2 PVC TAPES ), THESE ARE SET OF ONE KIT

1.Connection should be tape using PVC tape.2.Connection should be sealed by using Rubber tape.3.Connection to be tape by using PVC tape again.EARTHING KITS & GROUNDING CABLE:Kallol Ghosh26

EARTHING KITS Kallol Ghosh27

EARTHING STRIP & CABLE All earthing kits should be attached bellow 1m from lowest RF connector, along with the RF Cable in same position on VCT by using the cable ties, and earthing kits should be connected to EGB. EGB should be grounded properly.Kallol Ghosh28

EARTHING KIT ,(IT INCLUDESEARTHING STRIP,CABLE,WEATHER-PROOFING KIT). 1.The earthing kit must always be taken together with RF Cable.2.All earthing kits should be made in same location.3.One earthing kits should be terminated to the one hole of EGB.Lugs & Strips :Kallol Ghosh29

Copper strip Aluminum stripThere are three types of lugs 1) I-type 2) Pin type 3) Ring type Strips and lugs should be same material.

Roxtec: Quality point Kallol Ghosh30

Arrangement of RF Cable should be sector wise.Routing of RF Cable should not be crossed with each others4 Robber boots are there, each and every boot present a hole.Corner should be sealed by using silicon gelFull thread steel screw of size 1-1.5 should be used

Kallol Ghosh31RF Cable should be entered into the roxtec and mark the position of RF Cable then it should be removed from roxtec and cut the mark point on RF cable and connect the 7/8M connector. Now finally we insert the RF cable into the roxtec and connect it with Surge arrestors in same location according to sector wise. After that we have to make an s-bend on RF Cable near the roxtec.

Surge Arrestors:Kallol Ghosh32

Position of all the surge arrestors are in same. Now other end of surge arrestors should be connected with indoor jumper cable and route it on the indoor cable tray by using the cable ties.

Quality Point Of Surge Arrestor :Kallol Ghosh33All the termination of Surge arrestors and jumper cable should be hand tightPosition of all Surge arrestors should be in same sizeGrounding cable termination on surge arrestors should be properly tight.Routing of Grounding cable should be along with the same RF Cable.Position of Grounding cable should be bottom of the RF Cable.Each Grounding cable should be terminated to EGB.

Same positionGrounding cable bottom of the RF cableAlong with RF cableCable Ties: Quality PointKallol Ghosh34

Routing of Jumper cable should be done by using cable tiesDistance of two cable ties should be uniform and approx 200mm to route a jumper cablePosition of knot and direction of knot for cable ties should be in same .Unused portion of cable ties should be cut on

Labels: Quality Point:Kallol Ghosh35

1.Labelling on the RF Cable in both inside and outside the shelter should be visible from bottom.2.Labels should be provided at the both end of jumper cable.3.It should be provided of the back of the antenna.Thank YouKallol Ghosh36