Presentation on my industrial training in R

3-MONTH 3-MONTH INDUSTRIAL INDUSTRIAL TRAININGTRAININGIN BEETEL, IN BEETEL, HUMBRANHUMBRAN

THIS UNIT IS THE ONE OF THIS UNIT IS THE ONE OF THE TELEPHONE THE TELEPHONE

MANUFUFACTURING UNIT MANUFUFACTURING UNIT OF BHARTI TELETECH OF BHARTI TELETECH

LIMITEDLIMITED

OTHER UNITS OF OTHER UNITS OF BHARTI ENTERPRISES BHARTI ENTERPRISES ARE:ARE:1.1.GOA GOA TELECOMMUNICATIONS.TELECOMMUNICATIONS.2.2.OKHALA, DELHI.OKHALA, DELHI.

MAJOR DEPT. IN THE MAJOR DEPT. IN THE INDUSTRYINDUSTRY

• R&D(RESEARCH & DEVELOPMENT)R&D(RESEARCH & DEVELOPMENT)• HRD(HUMAN RESOURCE DEPT.)HRD(HUMAN RESOURCE DEPT.)• IQC(INCOMING QUALITY CONTROL)IQC(INCOMING QUALITY CONTROL)• MAIN STOREMAIN STORE• CALIBRATION & RELIABILITYCALIBRATION & RELIABILITY• ESC(ENGG. SUPORT CELL)ESC(ENGG. SUPORT CELL)• PLASTIC & GENRAL ENGG. (MOULDING)PLASTIC & GENRAL ENGG. (MOULDING)• MAINTENANCE DEPT.MAINTENANCE DEPT.• PRODUCTION ELECTRONICSPRODUCTION ELECTRONICS• FQC(FINAL QUALITY CONTROL)FQC(FINAL QUALITY CONTROL)• CSC(COUSTOMER SUPPORT CELL)CSC(COUSTOMER SUPPORT CELL)

I HAVE DONE MY TRAINING IN I HAVE DONE MY TRAINING IN R&D(RESEARCH & DEVELOPMENT)R&D(RESEARCH & DEVELOPMENT)

IT IS A CENTRALISED DESIGN IT IS A CENTRALISED DESIGN CENTRE OF BEETELCENTRE OF BEETEL

THERE ARE TOTAL 22 THERE ARE TOTAL 22 EMPLOYEES IN R&D DEPTEMPLOYEES IN R&D DEPT..

• MANAGER & JUNIOR MANAGERMANAGER & JUNIOR MANAGER

• 12 ENGGINEERS12 ENGGINEERS

• 8 TECHNICIANS8 TECHNICIANS

STEPWISE WORK-STEPWISE WORK-PROCEDURE OF R&DPROCEDURE OF R&D

STAGE-1STAGE-1• FEATURES FINALISATIONFEATURES FINALISATION• PLASTIC FINALISATIONPLASTIC FINALISATION• ELECTRONIC PLATFORM FINALISATIONELECTRONIC PLATFORM FINALISATION• TENTATIVE BILL OF MATERIAL COST & TENTATIVE BILL OF MATERIAL COST &

CERTIFICATION FROM MATERIALSCERTIFICATION FROM MATERIALS• BENCH-MARKETING/MARKET PLACEMENTBENCH-MARKETING/MARKET PLACEMENT• PROJECT PROPOSAL PROJECT PROPOSAL

TOTAL DURATION-11 DAYSTOTAL DURATION-11 DAYS

STAGE-2STAGE-2• SOFTWARE DEVELOPMENT(IF SOFTWARE DEVELOPMENT(IF

APPLICABLE)APPLICABLE)• SCHEMATIC DIAGRAMSCHEMATIC DIAGRAM• PREMILIARY BOM(BILL OF PREMILIARY BOM(BILL OF

MATERIALS) TO MATERIALSMATERIALS) TO MATERIALS• DESIGN INPUTS TO PCB DESIGNER & DESIGN INPUTS TO PCB DESIGNER &

SIGN-OFFSIGN-OFF• PCB DESIGNPCB DESIGN• PCB FABRICATIONPCB FABRICATION

•PCB ASSEMBLYPCB ASSEMBLY

•TESTING/PARAMETER TESTINGTESTING/PARAMETER TESTING

• ASSEMBLY OF PHONESASSEMBLY OF PHONES

•FEILD TESTINGFEILD TESTING

•FEILD TEST REPORT COMPILATIONFEILD TEST REPORT COMPILATION

•RELEASE OF CUSTOM BUILT ITEMS RELEASE OF CUSTOM BUILT ITEMS DRAWINGSDRAWINGS

TOTAL DURATION-42 DAYS

STAGE-3STAGE-3•MATERIAL ARRANGEMENT OF 35 SETSMATERIAL ARRANGEMENT OF 35 SETS

•PCB FABRICATIONPCB FABRICATION

•INSTRUCTION MANNUAL DEVELOPMENTINSTRUCTION MANNUAL DEVELOPMENT

•35 PCB ASSEMBLY IN R&D35 PCB ASSEMBLY IN R&D

•TESTING & FINE TUNINGTESTING & FINE TUNING

•35 PHONE ASSEMBLY & TESTING35 PHONE ASSEMBLY & TESTING

TIME DURATION-30 DAYSTIME DURATION-30 DAYS

STAGE-4STAGE-4• MARKET TEST SAMPLES DISTRIBUTIONMARKET TEST SAMPLES DISTRIBUTION

• LONG LOAD ITEM LISTLONG LOAD ITEM LIST

• MARKET TESTMARKET TEST

TIME DURATION-25 DAYSTIME DURATION-25 DAYS

STAGE-5STAGE-5• MARKET TEST REPORT COMPILATIONMARKET TEST REPORT COMPILATION

• FEEDBACK FROM MANUFACTURINGFEEDBACK FROM MANUFACTURING

• CORRECTIVE ACTIONCORRECTIVE ACTION

• DOCUMENTS RELEASE & SIGN OFFDOCUMENTS RELEASE & SIGN OFF

• PILOT LOT PLANEPILOT LOT PLANE

TIME DURATION-20 DAYSTIME DURATION-20 DAYS

STAGE-6STAGE-6• PILOT LOT OF 500 TO 1000 SETSPILOT LOT OF 500 TO 1000 SETS

• BULK MANUFACTURINGBULK MANUFACTURING

TOTAL DURATION-AS PER SHEDULETOTAL DURATION-AS PER SHEDULE

My My Project IN R&DProject IN R&D

1.1. STANDARDISATION OF PCB(PRINTED STANDARDISATION OF PCB(PRINTED CIRCUIT BOARD)CIRCUIT BOARD)

2.2. AUTO-MUTING CIRCUITAUTO-MUTING CIRCUIT

STANDARDISATION OF PCBSTANDARDISATION OF PCB IT MEANS SOME STANDARDS AND IT MEANS SOME STANDARDS AND

GUIDELINES THAT ARE FOLLOWED GUIDELINES THAT ARE FOLLOWED DUIRNG MANUFACTURIN AND DESIGN DUIRNG MANUFACTURIN AND DESIGN OF PCB TO REDUCE FAULTSOF PCB TO REDUCE FAULTS..

MOST COMMON PROBLEMS AND MOST COMMON PROBLEMS AND THEIR SOLUTIONS ANALYSED BY THEIR SOLUTIONS ANALYSED BY ME DURING ASSEMBLING OF PCB ME DURING ASSEMBLING OF PCB ARE:ARE:

Problems & there solutions:Problems & there solutions:

1.1. Ringer IC shortage Ringer IC shortage

Solution:Solution: white-masking length should be of 3mm. white-masking length should be of 3mm.

2.2. Loose Hook-switchLoose Hook-switch

Solution:Solution: Standard diameter for upper legs- 2.1 Standard diameter for upper legs- 2.1

Standard diameter for lower legs- 1.8Standard diameter for lower legs- 1.8

3.3. Solder-shorting between pins of T/P switch & Solder-shorting between pins of T/P switch & ringer switch pinsringer switch pins

Solution:Solution: Pitch should be of 2mm. Pitch should be of 2mm.

4.4. Radio frequency interface problem: Radio frequency interface problem:

Solution:Solution: To make complete ground loop in whole To make complete ground loop in whole PCB circuitPCB circuit

5.5. Solder-shorting between pins of ribbon wire: Solder-shorting between pins of ribbon wire:

Solution:Solution: Pitch should be of 2mm. Pitch should be of 2mm.

6.6. Soldering problem during wave soldering: Soldering problem during wave soldering:

Solution:Solution: All SMT components should be in same All SMT components should be in same direction to avoid dry solderingdirection to avoid dry soldering

AUTO-MUTING DURING AUTO-MUTING DURING TELEPHONE TELEPHONE

CONVERSATIONCONVERSATION

Telephone conversation can be made Telephone conversation can be made disturbance-free using this simple circuit. As disturbance-free using this simple circuit. As soon as you lift the telephone handset to soon as you lift the telephone handset to converse, the T.V ,music system or any other converse, the T.V ,music system or any other appliance that may be causing disturbance appliance that may be causing disturbance gets switched off. It turns on when you place gets switched off. It turns on when you place the handset on the cradle.the handset on the cradle.

NEXT THREE MONTH NEXT THREE MONTH IN CMS INSTITUTE OF IN CMS INSTITUTE OF

HARDWARE & HARDWARE & NETWORKING,LDH.NETWORKING,LDH.

HARDWAREHARDWARE

A COMPUTER IS A COMPLEX MACHINE A COMPUTER IS A COMPLEX MACHINE THAT INCORPORATES DIVERSE THAT INCORPORATES DIVERSE CONCEPTUAL SCIENTIFIC, CONCEPTUAL SCIENTIFIC, MATHEMATICAL AND ENGINEERING MATHEMATICAL AND ENGINEERING DETAILS.DETAILS.

HARDWARE,FIRMWARE & SOFTWARE HARDWARE,FIRMWARE & SOFTWARE TOGETHER MAKE UP A COMPUTER TOGETHER MAKE UP A COMPUTER SYSTEMSYSTEM

INPUT-OUTPUT PROCESS INPUT-OUTPUT PROCESS FLOW IN A COMPUTER FLOW IN A COMPUTER SYSTEMSYSTEM

MOST IMPORTANT MOST IMPORTANT COMPONENENT COMPONENENT MOTHERBOARDMOTHERBOARD

ISA BUSISA BUS

MICRO CHANNEL(MCA) MICRO CHANNEL(MCA) BUSBUS

INTEL D845GVSR INTEL D845GVSR MOTHERBOARDMOTHERBOARD

NETWORKINGNETWORKING

NETWORK IS A GROUP OF SYSTEMS NETWORK IS A GROUP OF SYSTEMS THAT ARE CONNECTED TO ALLOW THAT ARE CONNECTED TO ALLOW SHARING OF RESOURCES SUCH AS SHARING OF RESOURCES SUCH AS FILES,PRINTER,INTERNET FILES,PRINTER,INTERNET CONNECTION.CONNECTION.

TYPES OF NETWORKSTYPES OF NETWORKS

LOCAL AREA NETWORKLOCAL AREA NETWORK

CAMPUS AREA NETWORK(CAN)CAMPUS AREA NETWORK(CAN)

METROPOLITION AREA NETWORK(MAN)METROPOLITION AREA NETWORK(MAN)

WIDE AREA NETWORK(WAN)WIDE AREA NETWORK(WAN)

LAN CAN MAN WAN

Connects computers and workstations in Office or home.

Connects two or more LANs within the campus.

Interconnects networks in a town or a city.

Connects geographicallyseparated LANs

Covers a local area of 1 km

Covers privately owned campus with an area of 5 to 100 km

Covers larger area than LAN but smaller area than WAN with an area of 2 to 100 km

Spans large geographical area more than 100 km

Data Transmission Rate – 10/100 mbps

Data Transmission Rate - Variable

Data TransmissionRate -Variable

Data TransmissionRate- 64 kbps or 2 mbps

Uses IEEE 802 standard

Uses IEEE 802 standard

Uses ITU standard

Low cost High cost High cost (Repetitive) High cost (Repetitive)