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【文章內(nèi)容簡(jiǎn)介】 ble and pared to the estimate ? FIT rates are adapted accordingly (repetitive process) Information and Communication Networks 9,82 5,46 1,08 7,64 10,91 6,00 0,00 8,00 Example of FIT Rate Adaption: EDFA w/ 5 pumps ? First estimate in 2022: 6000 FIT (plete new design incl. new Pumps, no experience at SIEMENS side) ? New vendors (new spec.) were qualified by CoC Optics and the CoC process took place ? Estimates by two vendors: 3500 4800 FIT ? Reduction to 5000 FIT beginning of 2022 ? Quality improvement discussions with the vendors ongoing ? Check with field returns: ~ 1600 FIT ? Reduction to 4000 FIT(Siemens estimate) in April of 2022 ? Continuously monitored ? Similar process with EDFAs (2 pumps) lead to an estimate of 2400 FIT Information and Communication Networks 9,82 5,46 1,08 7,64 10,91 6,00 0,00 8,00 Example of FIT Rate Calculation for an Optical Amplifier Provided by the EDFA Supplier (1) opti c al c om ponents ( 40 癈 ) Vendor Sub f i t rate quanti ty F i t rate980nm Las er di ode Suppl i er A 320 1 320,0980nm Las er di ode Suppl i er A 377,6 1 377,6980nm Las er di ode Suppl i er A 129,6 1 129,61480nm Las er di ode Suppl i er A 70,4 1 70,41480nm Las er di ode Suppl i er A 70,4 1 70,4Phot o di ode Suppl i er B 12 8 96,0Coupler ( ) Suppl i er A 2 9 18,0980nm /1550nm W DM c oupl er ( ) Suppl i er A 2 3 6,0Is ol ator( ) Suppl i er C 8,2 6 49,2Hy br i d m odul e Suppl i er D 63 3 189,0W DM Suppl i er A 12,3 2 24,6O pti c al s w i tc h Suppl i er E 30 1 30,0G ai n equal i z i ng f i l ter Suppl i er A 12,3 3 36,9EDF Suppl i er F 1 6 6,0total f i t rate 1423,7Information and Communication Networks 9,82 5,46 1,08 7,64 10,91 6,00 0,00 8,00 Example of FIT Rate Calculation for an Optical Amplifier Provided by the EDFA Supplier (2) Overall FIT rate: 3 23 699 2 1836 2 7260 2 120150 1 15012 2 2460 5 300120 2 2401,5 76 11475 2 15048 2 9657 8 45645 5 2252034,0total f i t rateel ec tr i c al c om ponents ( 40 癈 ) quanti tyS ub f i t rate f i t rateF E T S ILICO N LINE A RCA P A CIT O R DIS CRET E F IX E D CE RA MICDIO DE S ILICO N G E NE RA L P LA S T IC 1ACO NNECT O R Mul ti 6P i nCO NNECT O R Mul ti 40P i nINT E G RA T E D CIRCU IT S DIG IT A L 2150T RRE S IS T O R F IX E D F ILM = 1ME GRE S IS T O R V A RIA B LE FILM = 200KRE S IS T O R F IX E D W IRE A CCU RA = 1ME GINT E G RA T E D CIRCU IT S A NA LO G 132T RCO NNECT O R Mul ti 100P i nT RA NS IS T O R S ILICO N NP N P LA S T IC = F E T S ILICO N S W IT CHInformation and Communication Networks 9,82 5,46 1,08 7,64 10,91 6,00 0,00 8,00 Siemens Reliability Process Overview Optical Components: ? EDFA ? VOA ? GTC ? Passives Negotiations with suppliers: ? Modelling ? Field experience ? Supplier parison Electrical Components: ? Resistors ? Capacitors ? Transistors ? ICs ? etc. Standards: ? SN 29500 ? IEC 61709 Mechanical Components: ? Connectors ? Boards ? etc. Standards: ? SN 29500 ? IEC 61709 Card FIT Rate ? Feedback from Field Return Rate Information and Communication Networks 9,82 5,46 1,08 7,64 10,91 6,00 0,00 8,00 Reference FIT Rate for electrical and mechanical ponents ? SN 29500 developed by ZT SR Corporate Function Standardization and Regulation, ? Crossfunctional expert team SN 29500, Committee Quality ? Used by all Siemens divisions ? Updated by expert team with data from: ? field experience, ponent qualifying teams and ponent manufacturers History and acceptance ? Developed as pany39。s internal standard ? First edition in 1978 ? Worldwide used by the most Siemens groups ? Widely used outside the pany ? Generally used calculating the Siemens telemunications systems ? Approved worldwide by the customers ? Fully in accordance with EN/IEC 61709 actually parts Part 1: General Part 2: integrated circuits Part 3: discrete semiconductors Part 4: passive ponents Part 5: electrical connections Part 6: connectors and sockets Part 7: relays Part 9: switches Part 10: signal and pilote lamps Part 11: contactors Part 12: optical semiconductors, signal receivers Part 13: lightemitting and infrared diodes Part 14: optocoupler Information and Communication Networks 9,82 5,46 1,08 7,64 10,91 6,00 0,00 8,00 FIT Rates of Individual Electrical Components E x a m b l e : O L I M a i n b o a r d ( F R t o t a l s u m m a r y )T o t a l R e s u l t s : F R m e a n M T B F m e a n M T B F m e a nf i t h o u r s y e a r st o t a l 3 . 5 6 3 2 8 0 . 6 9 8 3 2 , 0T u : 4 0 176。 C m e a n c o m p o n e n t a m b i e n t t e m p e r a
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