Skip to main content

Currently Skimming:

A.4.6 Life Cycle Cost Estimating
Pages 472-490

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 472...
... The reason for using LCC is that yearly operational costs can easily exceed 10-20% of initial system acquisition costs. Alternatives that promote operational productivity and best achieve operational benefits frequently are the most cost-effective, even if initial acquisition costs are greater.
From page 473...
... 1300 rim X X X ~ Optical Light Source (LED) 1300/1550 nm Optical Source, White Light ptical Power Meter Visual Fault Indicator Return Loss Test Set Fusion Splicers Optical Spectrum Analyzer Chromatic Dispersion Test Sets Variable Optical Attenuator O/E Converters Portable Ethernet Transceiver/Tester Bandwidth Test Set SONET/SDH Maintenance Test Set SONET/SDH Jitter Analyzer SONET STS-1 Test Set itter and Eye-Diagram Analyzer ATMlBroadband ISDN Test Systems ATM Protocol Analyzer SS7 Signaling Test Set FDDI Test Set Twisted Pair Wire Test Set WAN Protocol Analyzers DS-1 ATM Hand Held Tester DS-1 Hand Held Tester DS-3 ATM Hand Held Tester X x l x 1 X X X X OC-3 ATM Single Mode Hand Held Tester Digital Transmission Tester Telecom/Datacom Analyzer .
From page 474...
... Test Equipment Cost Range fi'n Ss)
From page 475...
... l ! l On-premises I General Purpose Backbone Fiber fiber Plant I Bench Test Sunre'71ance Video Plant Installation Installation & ':TestEqu~pmentNomencl~re I Equ~pn~nt Jest Equipment & Test Jest _ __ Voltage Standing Wave Ratio (VSWR)
From page 476...
... l l ~ X X X T T ~ ~ ~X . X ~X X Spr~d Spectrum iink Installa~on & Communications Personal Communica~ons Sennces {CellularJ Test Equipment Cost Range ~n $s, X 500 - 350 X 1 0,000 4,800 100 21,000 - 39,800 1,100 - 8,100 350 - 3,000 1,180 20,000 - 13,000 X X X == X x r x ~: ~1 ' 1 1 ~I .
From page 477...
... A LLJ By I llJ CJ1 J 11
From page 478...
... In particular, we will not include the dine value of money and win only present parameters that are significant influences. To provide reasonably comprehensible discussion, our focus win be on a SONET fiber backbone communication networks.
From page 479...
... and Availability (AV °/0} | AV % | MTTR 1 hr | 2 hr 1 4 hr| 8 hr| Yearly Ho firs | Yearly Hours Available Unavailable =8760 hr/yr) 900/09 hr 18 hr36 hr 72 hi 7884 876 99o/o99 hr 198 hr396 hr 992 hi 8672 88 99.9°/0999 hr 1,998 hr3,996 hr 7,992 hr 8751 9 99.98%4 999 hr 9 998 hr19 996 hr 39 992 hi 8758 ~~~ 99.99°/09,999 hr 19,998 hr39,996 hr 79,992 hi 8759 1 As MTTR increases and availability increases toward a common industry goal of approximately 99.98%, the required MTBF to support the availability becomes significant.
From page 481...
... SONET equipment is electronic equipment similar to signal controllers so we win allocate preventive maintenance as Time Interval (~ of 90 days and Average Tune required of 4 hours. Thus, following the procedures outlined In Tables A.4.3~4 and A.4.3-5, Me required manpower to / maintain this SONET subsystem is presented in Table A.4.6-2a and A.4.6-2b, which calculate the following: · MTBF, MTrR, and availability analysis for Me total system, calculated for bow 24-hour/7 day staffing and 40-hour/week staffing.
From page 482...
... S 3,726,000.00 Houre Rab (S~lu) Years Cost (S~ 855.11 S 77.56 10 S 66,322.57 S663,225.69 1% 5 S 13,500.00 S67,500.00 Ten Y-r Oper~ Cost S730,725.69 Tolal Ten Year cost S4,456,725.69 costimi~ar co~~r YRSHRS04.E96 MTTR hr/ropdr 40 hour work w~k only ~__ ~ 12 12 12 Repair Rsto repsirdnr 0.083333333 0.06m3~33 0.0833~333 Avaibbillty % hrtyr down 128.39 0.985343585 S"5,672.57 S8,913.45 S1.69
From page 484...
... z - J - (a it: ~ En LLJ Z \ oz ~At I o En \ \ \ LL Z Cal O Ly / Z ~ ~ m llJ llJ llJ Z 0 1 En LO 0 ~ ~ LO 1 llJ Z Z~ o~ ., 1 o Ln o ·n z z o cn 1 ~0 ~: z ~ i~ o LL
From page 485...
... Maintenance staffing requirements based on 40-hour week staffing, with a staffing overhead of 1.280355 as per Table A.4.3-2. at should be noted that Me overhead is only Mat required to achieve 40-hour week availability of maintenance personnel.)
From page 486...
... 7days por w~ic Repair Rate repairmr 45 025 4.~ 0~ 024~9 806.8 O.OO1= 1.355,942.0 7.37495E-07 50.00 90.00 4.00 1,355,942.00 4.05 811.11 44.10 85521 0.52 or 1 porson about half ~ne 4.05 024680369 2.025901642 0.493607379 Ava lability % . o.ssssseso6 hrtyr down 0.01309 Maintonance Staging R-uir~ In~ Elon~n ~Mahtenanco Ca~MTBF(hr,Faihre~youHo~ar SONET Tem~nalsgoa9.738.93 F - r- 5 mDe s~rn76341.15.16 Total10.944.10 Maintu~anco HowsJ~ars b~d on OnJob hows W~ Cvcb Cost Ansh~s (assume nainter~nco ~ava'labb 40 housh~k)
From page 488...
... cy l 1!
From page 489...
... Table A.4.~4a Life Cycte Cost Analysis for Paralle' ·ink Faull Tolerant MTBf, MTrR, and AVAILABILITY ANALYSIS 24 hr per day, 7days per week IndNdua S~ SONET T6minal MTBF hr~ailur6 45,~.0 Fdlura Rate * Dure/hr 7 ~F.0S Fber- 5 mite s~nt Compo~te of Ono Tambal/~ S - ment _ _ 389,335.4 40337.7 2~5~8E~ 47907E-05 Parallel Esch SONETJFbar s~monts Sarbs of Paraid Lhks Total Systom ffa~ of b~ p~d ~ ~ - )
From page 490...
... IL · Q ~n ._ hi: ~2 In O _ ~ ~2 ~ ~ ·= Hi .,.


This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More information on Chapter Skim is available.