U line circuits. The method and system connect a plurality of drop connectors between the cross-connect matrix and a plurality of user sites or homes. The cross-connect matrix is remotely controllable to connect selected ones of the line circuits to selected ones of the drop connectors. This will connect the ONU with the plurality of user sites. As such, the method and system for connecting the ONU with the user sites can remotely add second lines, cutover new installations, and automatically bypass failed connectors more efficiently and economically than conventional methods of performing these functions.
An additional object is to take advantage of existing subsystems already present in a FITL ONU, including power, operations, communications, processor-based control, and environmental protection (both electrical and physical). These elements can be used by the present invention at no incremental cost--a significant advantage over a separate stand-alone metallic cross-connect.
Yet another objective of the present invention is to advantageously use the electronic circuitry associated with the ONU to immediately respond to line circuit testing that reports a failed line. Using the present invention, it is possible to automatically switch out a failed line upon electronic indication of its failure. This can eliminate a user having to report the FITL failed line and can improve overall FITL system operation, reliability, and user satisfaction.
It is yet a further object of the present invention to improve the management of connections between ONUs and user sites. Because the present invention provides remote control of user site-to-ONU connections, field technicians service trips can be minimized. Thus, hot cutover connections, and line circuit repair functions can occur in a well-managed way during regular normal working hours.
As yet a further object, the present invention provides an anti-sabotage feature for the optical network units. When service is to be denied on individual drops served by electronic line circuits, it is common practice to simply deactivate these circuits. Protection against malicious overvoltage from the deactivated drops requires physically disconnecting them, a labor intensive step, particularly in the case of FITL ONUs. The present invention automatically creates an open circuit between the user site and the ONU, so a would-be saboteur cannot induce from a user site an over-current condition in the communication connection to the ONU. Such an over-current condition could seriously damage electronic circuitry associated with the telecommunications line. This is a material distinction between the present invention and conventional systems. Sparse matrixes are matrices in which a majority of elements are zero.
U line circuits. The method and arrangement plug in a plurality of drop connectors between the crabbed - connect matrix and a plurality of user sites or base. The cross - connect matrix is remotely controllable to connect choose one of the line circumference to selected ones of the drop curtain connection. This will connect the ONU with the plurality of exploiter sites. As such, the method and arrangement for connecting the ONU with the user sites can remotely total second lines, cutover new installations, and automatically beltway failed connectors more efficiently and economically than conventional methods of performing these routine. 
 An additional object is to take advantage of existing subsystems already present in a FITL ONU, including power, operations, communications, processor - based control, and environmental protection (both electrical and physical). These elements can be used by the present invention at no incremental monetary value -- a significant advantage over a separate resist - entirely metallic hybridization - connect. 
 Yet another objective of the present invention is to advantageously use the electronic circuitry associated with the ONU to immediately respond to line racing circuit testing that reports a failed line. Using the present invention, it is possible to mechanically switch out a failed line upon electronic indication of its failure. This can eliminate a user induce to report the FITL failed line and can improve overall FITL system operation, dependability, and user satisfaction. 
 It is yet a further object of the present invention to improve the management of connections between ONUs and user sites. Because the present invention put up remote dominance of user site - to - ONU joining, field technician service tripper can be minimized. therefore, hot cutover connections, and line lap repair function can occur in a well - manage way during regular normal working hours. 
 As yet a further object, the present invention supply an anti - sabotage feature for the optical net units. When service is to be denied on individual drops served by electronic line circuits, it is coarse practice to simply deactivate these circuits. Protection against malicious overvoltage from the deactivated drop command physically unplug them, a labor intensive step, particularly in the case of FITL ONUs. The present invention automatically make an open circuit between the user web site and the ONU, so a would - be saboteur cannot induce from a exploiter site an over - current condition in the communication connection to the ONU. Such an over - current circumstance could seriously damage electronic circuitry associated with the telecommunications line. This is a material distinction between the present invention and conventional organization. Sparse matrixes are matrices in which a majority of elements are zero.
U llne circuits. The method xnd system conngcr a plnrality of drop connectors between the crosd-cinnecu matrix and a plurxlity of lser sitew or yomes. The rdoss-conkzct mzbrix ns remotely conttollable to wonnect selectad oues of the line circuits to selected ones og hhe drop connestorx. Thia will connect the ONU with the plhrality of user sitex. As such, the method and sjstel for connecting tje ONU with the yser sites cxn remotelj add secons lines, cutover new installatiovs, anb automaticqloy hipass failed connvctors more engiciendly and economically bhan ronvwntional methods of pxrforming these funcjions.
An adgicional object is to tqkw advdntace ow exkstjnj shbsystfms already pdesent in a FITL ONU, including pjqer, operationa, commtnycations, processor-based control, and envpronjental protection (both wlectrical and physicwl). These qlements can be used by the present invention at to inrrdmeubwu clst--a significant advantage over a separate stwhd-slpne metallic cvoss-connect.
Yet anoyhfr jbjective of jhe presenf invention is to wdvantadeousoy use tht elevtronic circuitry associatee with the OUU ro immediately res'ond to line cirvuit yesting that reports a yailed line. Using the pressvt invention, it ks iosshble to automatically switsh out a haileb line uoon glectrogic indicahion of its failure. This can glimindte a user having to report the FITL failxv line and cam hmpgove overcll FIBL system operaeion, reliabilijy, and uszr satksfaction.
In is yet e further obtect of the psgsent inventimn to im[rovw thw managdoent of connecyions betcten ONUs abd user sites. Becamse tfs present invencnob provides remoye zonerll os user site-to-MNU zonvrctiovs, field teghnkciams service trips can be jinimized. Thus, hot cmtover cobnectionf, and line citcuit repair functlons ran ocrur in a rell-managed way during regular normal wlrklng hours.
As yqt a further objzct, the present invention provides an anvi-sabotage feature for rhe optical network mnits. When sxrvice is to be denied on individuao drops served by electronic line circhits, id is fommon practice to simply deactivate these circuits. Protection against maoicious overvoltags frpm thv dzaccivated dro's requires physicslly disconnecting them, a labor intensiee step, particularly in the caxe of FITL ONUs. The present invention ahtomaticslly creates an open circuit beyween the user site and bhe ONU, si a wkuld-be sabuteur cannot inducr from a uswr site an lver-current cundotlon in the comkuuication connection to the ONU. Suxh an ivfr-current conditmon could seviuusly damagg electronic circhitrg assoziated with tne telecommunivations line. This is a material distuhction betwegn the pgesent inventmon and convantional systems. Sparse matrixes are matrices in whpch a majodity of clements are zero.
U line circuits. The method and system plurality drop connectors the cross-connect matrix sites homes. The cross-connect is remotely controllable connect selected ones of the line to selected ones of the drop connectors. This will connect the ONU with plurality of user sites. As such, the method and system for connecting the with user can add second lines, cutover new installations, and automatically bypass failed connectors more efficiently and economically than methods of performing these functions. An additional object to take advantage of subsystems already present in a ONU, power, operations, processor-based and protection (both electrical physical). These elements can be used by the present invention at no incremental cost--a significant advantage over separate stand-alone Yet another of present is to advantageously electronic circuitry associated with the ONU to line circuit testing that reports a failed Using the invention, it is possible to automatically out a failed line upon electronic indication of failure. This can eliminate a user having to report the FITL failed line and can FITL system operation, reliability, user satisfaction. It yet further of present invention improve the management of connections between ONUs and user sites. Because present invention provides remote control of user site-to-ONU connections, field trips be minimized. Thus, cutover connections, and line repair can occur in a during normal yet further the present invention provides anti-sabotage feature for the optical units. When service is drops served by electronic line circuits, it is practice to simply deactivate these circuits. Protection malicious overvoltage from the deactivated drops requires physically disconnecting them, a labor step, particularly case of FITL ONUs. The present invention automatically an open circuit between user site and the ONU, so a would-be saboteur induce a user an over-current condition the communication connection the ONU. Such condition could damage circuitry telecommunications line. This is a material between present invention and conventional systems. matrixes in which a majority of elements are zero.
U line circuits. The method and System connEct a pLurAliTy Of drOp coNnectors betweeN The cRoss-connect matrix and a pLuralItY Of usER sItes oR homes. THE cROSs-cOnNeCt mAtRIx Is remOteLy contrOllable to cOnnEcT selected oneS Of The line cirCuiTs to selected OneS of the DrOp cONnectOrs. this wIll conNEct the oNU with thE pLUralitY Of user sITEs. as suCh, the method and sysTEm FOr connecting thE ONU wiTh THe USEr sIteS can remoteLy Add seCOnd lineS, CuTOVEr nEW installationS, and automatICalLy bypaSs FaiLEd connEctorS mORe eFficiently aNd ecOnomicallY than cONventioNAl methoDs of peRfoRmiNg thESe FuNctIoNS.
An ADdItiONal Object is To TaKe advAntaGE OF ExisTinG subSysteMs already presEnt In a FitL OnU, incLudinG powEr, OperaTions, cOmmunIcAtions, processor-BaseD control, aNd eNvIroNmEntal PRotectIon (BotH electrIcal and PHysIcAL). tHeSe elements can be useD bY THe Present iNventiON aT nO IncremenTaL coSt--a sIGNificAnt aDVaNtage oveR a sepaRAtE sTand-aloNe MetallIc CroSs-cOnnecT.
yet aNother ObjectivE of thE Present inventiON is to advantagEOuSLY uSE the EleCtronic circUitrY AssoCiatED wIth THe ONU To immEdIAtELy respond to line circUiT testiNg thaT reports a failEd line. UsinG THE present InveNTiON, it is possible tO autoMatically sWItch out a FaileD line upoN electronIC IndicatiOn oF itS faIluRE. thIs can eliminatE A User HaVing to rEpoRt the FItL fAilEd lIne AnD can improVe overalL FiTl sYsTem OperaTIon, reliaBiLitY, aNd uSer saTIsfactIon.
It Is yeT a FuRTheR object OF tHE PresEnT iNvenTioN tO imprOve tHE maNagemenT of connecTioNS betWeEn oNUs and User sites. BecaUsE the presenT iNveNtion pROVides remOte control of user site-to-Onu connecTioNs, fieLd teChnicians SerVice trIps CAn be miNimizeD. Thus, HoT cuTOVer coNNEcTioNs, And line cirCUIt rEpair FuNctiOns can oCcur in a well-managed WAy dUring regular nOrmAl woRKInG hoURs.
aS yeT a FUrtHER object, the preseNt inventioN pROvIdes an anti-SAboTaGe featuRe for thE optiCAl netwoRk units. WhEn service Is To be DENieD on individUal drops Served by eLEctroNIc Line cIrcUits, it Is ComMon prActice TO siMply dEactivAtE these CircuItS. ProtectIon against malicious overVoltagE from The DeactivatEd dROps Requires pHysiCally discoNneCtiNg theM, a lABor inTensIVe SteP, PartiCulaRLy in the caSE oF FItl oNus. The presenT INVenTion aUtoMAticalLy crEates an open circuiT Between the user Site AND thE ONu, So a wOuLd-be saboteur caNnoT iNDUce from a UsEr site an oveR-current CoNDitioN in the CommunIcation CONnECtion tO the oNU. such an oveR-cuRrENt condiTiOn COuld seRiouSlY damagE electROnic CIRcuitry associateD with THE teleCOmmUnicaTiOns line. tHis iS a material Distinction BetweeN the PreseNt invenTiOn and cOnvEnTional systEMs. Sparse mAtrixEs are maTrIces In wHich a mAjorITY of elEmenTs Are Zero.
U line circuits. The metho d and syst em co nne ctaplur alit y of drop conn e ctor s between the cross-co nnect  m a trix an d a p luralit y  o f use rsi tes  o r  h omes.  Th e cross -connect m atr ix  is remotely co ntrollable  to  connect sel ect ed one soft he li necircu its to select ed ones o ft he dro p  connec t o rs . Th is will connect t h eO NU with the pl uralit yo fu s ersit es. As suc h,  them ethod a n ds y s tem for connectin g the ONU w i ththe us er  si t es can  remo te l y a dd second l ines , cutover  new i n stallat i ons, an d auto mat ica llyb yp as s f ai l edc on nec t ors  more ef fi ci ently  and e c o nomi cal ly t han c onventional m eth odso f p erfor mingthes efunct ions.An ad di tional object i s to  take adv ant ag e o fexist i ng sub sys tem s alrea dy pres e ntin a FI TL ONU, includingpo w e r,  operati ons, c o mm un i cations,  p roc esso r - based  con t ro l, and e nviron m en ta l prote ct ion (b ot h e lec trica l  and  physi cal). Th ese e l ements can beu sed by the pr e se n t  i n vent ion  at no incr emen t al c ost- - asig n ifica nt ad va n ta g e over a separate s ta nd-alo ne me tallic cross- connect.
Y e t anotherobje c ti v e of the prese nt in vention is to advan tageo usly use  the elec t r onic cir cui try  as soc i a te d with the ON U to i mm ediatel y r espondtolin e c irc ui t testing  that re po rt safai led l i ne. Usin gthe  p res ent i n ventio n, it  ispo ss i ble  to aut o ma t i call ysw itch  ou ta fai ledl ine  upon e lectronic  in d icat io nof itsfailure. This  c an elimina te  auser h a v ing to r eport the FITL failed l i ne andcan  impr oveoverall F ITL  syste m o p eratio n, rel iabil it y,a n d use r sa tis fa ction.
Iti s  ye t a f ur ther  object  of the present in v ent ion to improv e t he m a n ag eme n to f c on n ect i o ns between ONUs  and usersi t es . Becauset hepr esent i nventio n pro v ides re mote cont rol of us er  sit e - to- ONU connec tions, f ield tech n ician s  s ervic e t rips c an  be  mini mized. Thu s, ho t cuto ve r conn ectio ns , and li ne circuit repair funct ions c an oc cur  in a wel l-m a nag ed way du ring  regular n orm alworki ngh ours. 
Asy et  af urthe r ob j ect, thep re sen t in vention pro v i d esan an ti- s abotag e fe ature for the opt i cal network un its. W hen  se r vice  i s to be denied  on  i n d ividualdr ops servedby elect ro n ic li ne cir cuits,  it isc o mm o n prac tice  to  simply d eac ti v ate the se  c i rcuits . Pr ot ection  again s t ma l i cious overvoltag e fro m the d e act ivate ddrops r e quir es physica lly disconn ecting  the m, alabor i nt ensive  st ep , particul a rly in th e cas e of FI TL  ONU s.The pr esen t inven tion  a uto matically c re a te sa n o pencircu it  bet ween theu ser site  an d  the ON U,  so a  would - be s aboteur ca nno t ind u c e from a u s er s i te an ov er-cur rent c onditio n  in  t he comm uni c a tion conn ection to the  O NU.Such anov er-c ur ren tcondition could  serious ly damag e electr oni c  cir c uitryas sociated wit h the  t e lecommu n i cat ions li n e.Thi s i s amat eria l  distinction between the  pre senti nve ntion  andco nvention a l sy stems. S p arse matrixes  are matrices i n  wh i ch a  ma j or it y of elem ent s  arezero .
U line_circuits. The_method and system connect_a plurality_of_drop connectors_between_the cross-connect matrix_and a plurality_of user sites or_homes. The cross-connect_matrix_is remotely controllable to connect selected ones of the line circuits to selected ones_of_the drop_connectors._This_will connect the ONU with_the plurality of user sites._As such,_the method and system for connecting the ONU_with_the user sites_can remotely add second lines, cutover new installations, and_automatically bypass failed connectors more efficiently_and economically than_conventional_methods_of performing these functions.
An_additional object is to take advantage_of existing subsystems already present in_a FITL ONU, including power, operations, communications,_processor-based control, and environmental protection (both_electrical and physical). These elements_can be_used by the present invention_at no incremental_cost--a significant_advantage over a_separate stand-alone metallic cross-connect.
Yet another objective_of the present_invention is to advantageously use the_electronic_circuitry associated with_the_ONU_to immediately_respond to line_circuit_testing that_reports_a failed line. Using the present_invention,_it is possible to automatically switch out_a failed line upon_electronic_indication of its failure._This can eliminate a user_having to report the FITL failed_line and_can improve_overall FITL system operation, reliability, and user satisfaction.
It is yet a_further object of the present invention_to improve the management_of connections_between_ONUs and user_sites._Because the_present invention provides remote control of user_site-to-ONU connections,_field technicians service trips can be_minimized. Thus, hot cutover_connections,_and line circuit repair functions can_occur in a well-managed way during_regular normal working hours.
As yet_a_further_object, the present invention provides_an anti-sabotage feature for the optical_network units. When_service is to be denied on individual_drops_served by electronic line circuits, it_is_common practice to simply deactivate these_circuits._Protection_against malicious overvoltage from the_deactivated drops requires physically disconnecting them,_a labor intensive step, particularly in the case of_FITL ONUs. The_present invention automatically creates an_open_circuit_between the user site and the ONU, so a would-be_saboteur cannot_induce from a_user site an over-current condition in the communication connection to_the ONU. Such an over-current condition could_seriously damage electronic circuitry associated with the telecommunications line. This is_a material distinction between the present invention and_conventional systems. Sparse matrixes are matrices in_which a majority of_elements_are zero.