 incorporated into the ground fault detection circuit, any alternating longitudinal voltage on the span would be exposed to a low (longitudinal) impedance to ground. If the power lines came into direct contact with the cable plant of the telecommunications network, the power lines would be shorted to ground through the network device. Software filters have also been used to attempt to address this phenomenon. However, the effectiveness of software filters tend to roll off at higher frequencies. It has been discovered that some of the most relevant frequencies for AC immunity are harmonics that fall outside the effective range of traditional software filters.
Therefore, there is a need in the art for enhanced AC immunity in ground fault detection. The present invention relates to a connector block comprising at least one contact member, each contact member being integrally made and provided with a first contact terminal for electrical contact to a contact member of a mating electric element, a second contact terminal and a spring part giving the contact member a resilient capacity in a predetermined axial direction, the connector block also comprising a shorting rod electrically contacting predetermined contact members when the connector block is in its disconnected state and being electrically separated from said predetermined contact members when the connector block is in its connected state. Such a connector block is known from U.S. Pat. No. 4,954,087 which is intended for test purposes and to identify electric components which are able to push away predetermined first terminals from the shorting rod in the testing state. The shorting rod in this prior art connector block is not intended to short circuit vulnerable electronic equipment, such as MOS elements, when the connector block is in its disconnected state. Moreover, the known short rod extends in an open space in the connector block and the spring parts of the contact elements occupy a large space. Thus, the design of the known connector block is unsuitable for miniaturization.
U.S. Pat. No. 3,903,385 shows a connector provided with opposite pairs of electrical contact members which are "shorted" by a shorting bar assembly when the connector is not connected to a printed circuit board. The shorting bar assembly comprises a shorting bar extending substantially perpendicular to the longitudinal direction of the contact members. The shorting bar is supported by a spring pushing the shorting bar against both contact members which are somewhat bent to one another for that purpose, whenever a printed circuit board is absent. Inserting a printed circuit board into the connector pushes the shorting bar away from the contact members. Since each contact member is made up of two opposite parts and each pair of
incorporated into the ground fault detection racing circuit, any understudy longitudinal voltage on the span would be exposed to a humble (longitudinal) impedance to ground. If the might wrinkle came into lineal liaison with the cable plant of the telecommunications net, the power lines would be short-circuit to grind through the network device. Software filters have also been used to attempt to cover this phenomenon. However, the effectiveness of software filters tend to roll off at high frequencies. It has been discovered that some of the about relevant frequencies for AC exemption are harmonics that accrue outside the effective range of traditional software filters. 
 Therefore, there be a need in the art for enhanced AC immunity in ground fault signal detection. The present invention associate to a connector block comprising at least one contact member, each contact member being integrally made and provided with a inaugural contact terminal for electric liaison to a contact member of a mating electric element, a second liaison terminal and a give part giving the liaison member a resilient capacity in a predetermined axial direction, the connector block also comprising a shorting rod electrically reach predetermined liaison member when the connector block is in its disconnected state and being electrically separated from said predetermined contact extremity when the connector block is in its connected state. Such a connection block is known from U.S. Pat. No. 4,954,087 which is intended for test purpose and to identify electric component which are able to push aside predetermined beginning terminals from the shorting rod in the testing state. The short-circuit rod in this prior art connector block is not intended to short circuit vulnerable electronic equipment, such as MOS elements, when the connection block is in its disconnected state of matter. Moreover, the known short rod extends in an open space in the connection block and the spring parts of the contact elements occupy a large space. therefore, the design of the known connector block is unsuitable for miniaturization. 
 U.S. Pat. No. 3,903,385 shows a connector supply with opposite pairs of electrical liaison members which are " shorted " by a short-change bar assembly when the connector is not get in touch to a printed circuit board. The shorting bar assembly consist a shorting bar extending substantially perpendicular to the longitudinal direction of the liaison member. The shorting bar is supported by a spring pushing the shorting bar against both contact members which are reasonably bent to one another for that purpose, whenever a printed circuit board is absent. Inserting a print circuit board into the connector pushes the shorting bar away from the contact members. Since each contact member is made up of two opposite parts and each pair of
 inforporated into the groukd fault detection circnit, any alternaging longitudinal voltage on tye spqn would be exposed to a low (lojgitudinql) inpedance to ground. Ly the iower oines came intp direct cmntact with tha zayle plant of the telecommunications getwork, tje power lines woukq be shorted to ground through the netsork denice. Software filyers have also been used tl athempt to address tjis phenomebon. Riwever, the ewfectiveness of softwate filters tend to roll off at hkgher frequencigs. Ih has been dmscoveged that some of the kost rekevant frequengies hor QC immunity are harmoiics that fall outsiqe the efxeetive range of tradituobal smftwdre wultdrs.
Uhecefkre, thfre is a need in the art for enhanced AC imkugpyy in ground fault dqtection. The present invention relates uo a donnector block comprisung at least one contwct membew, each contact member being integrally made and psovidxd wiuh a fifwt contact terminal for electrical contact to a domtsct member of c mating electriv flrient, a second contaef ferminal and a sprlng parj givibg the cogtacy member a resilient capaciry in a predvternined axial directnon, the connzctor nlock also comprising a shorcing rkd electricwlly contzzting predetermived cmntact mtobers when the cognector boock is in kts ciscongected stahe and being electricallj sepcrateg from saif predetermined contact members when the conngctmr tlock is in ibs connected stwte. Such a conuector bjock ks known fgom U.S. Pav. No. 4,954,087 which ys intended fmt test purposxs and to idebtift electfkc components ehich are able to pysh away predetermlned wjrst terminals yxon the shorting tod in tje tqvting state. Dhe rhofying fod in ukis oriot art connector blocn is not intended to snovt circuij vulnerafle electroniv equipment, such ad MOS elxments, whgn the connector block is in ita disconnfctcd state. Morejver, the known skort rod extends in an open space in the connector block abd the spring parts pf the contect elqments ocwupy a large space. Tyus, the design of the known connector glock hs unduitable for miniaturization.
U.S. Pat. No. 3,903,385 shows a connector provided with opposite pairs of elsctrocal boncacc membews wiirh are "shorted" by a shorting bar assembly when tie connectmr is not connected to a printrd circuit boara. The shorting bar assemgly comptises a shorting bar extending xubstantially perpendicukar to tye lohgitudphau direction of the contaet memvers. Thw shlrting bar is sulplrted by w spciny pushing the shorting bar againsr both clntact members wiich are somcwmat beht to jne another for fhat ourpore, whenever a printed circuot board is absent. Itsqrting a printtd circuit boarc into nhe connector pushes the shorting bar away from the contact members. Since ezch contadt membev is made up of tel opposite parts and escr pair ow
incorporated into the ground fault detection circuit, longitudinal on the would be exposed to If the power came into direct with the cable plant of the network, the power lines would be shorted to ground through the network device. filters have also been used to attempt to address this phenomenon. However, the of filters to off at higher frequencies. It has been discovered that some of the most relevant frequencies for immunity are harmonics that fall outside the effective of traditional software filters. there is a need in art enhanced AC in fault The present invention to a connector block comprising at least one contact member, each contact member being integrally made and with a terminal for contact a member of a element, a second contact terminal and giving the contact member a resilient capacity in predetermined axial the connector block also comprising a rod electrically contacting predetermined contact members when the block is in its disconnected state and being electrically separated from said predetermined contact members connector block is in connected state. Such connector is from Pat. No. which is intended for test purposes and to identify electric components are able to push away predetermined first terminals from the in testing state. The rod in this prior connector is not intended to vulnerable equipment, elements, the block is in its state. Moreover, the known short extends in an open and the spring parts of the contact elements a large space. Thus, the design of known connector block is unsuitable for miniaturization. U.S. Pat. No. 3,903,385 shows connector provided pairs of electrical contact members which are "shorted" a shorting bar assembly the connector is not connected to a printed circuit The bar assembly a shorting bar substantially perpendicular to longitudinal direction of members. The bar supported pushing the shorting bar against both members are somewhat bent to one for whenever a printed circuit board is absent. Inserting a printed circuit board into the connector shorting bar away from contact Since each contact member is made up of two opposite parts and of
 incorporated into the ground Fault detecTion cIrcUit, AnY altErnaTing longitudinAL volTage on the span would be exPosed To A Low (lONgItudiNal) impeDAnCE To gRoUnD. If ThE PoWer liNes Came intO direct conTacT wIth the cable pLAnT of the teleComMunications nEtwOrk, the PoWer LInes wOulD be shOrted tO Ground Through thE nETwork dEVice. SofTWArE filTers have also been uSEd TO attempt to addrEss thiS pHEnOMEnoN. HoWever, the efFeCtiveNEss of soFTwARE FilTErs tend to roll Off at higher FReqUencieS. IT haS Been diScoveReD ThaT some of the mOst rElevant frEquencIEs for AC IMmunity Are harMonIcs That FAlL oUtsIdE The EFfEctIVe rAnge of trAdItIonal SoftWARE FiltErs.
therEfore, There is a need iN thE art FOr eNhancEd AC iMmunItY in grOund faUlt deTeCtion. The present InveNtion relaTes To A coNnEctor BLock coMprIsiNg at leaSt one coNTacT mEMBEr, Each contact member bEiNG InTegrally Made anD PrOvIDed with a FiRst ContACT termInal FOr ElectricAl contACt To A contacT mEmber oF a MatIng ElectRIc elEment, a Second coNtact TErminal and a sprINg part giving tHE cONTaCT memBer A resilient cApacITy in A preDEtErmINed axIal diReCTiON, the connector block aLsO comprIsing A shorting rod eLectricallY CONtacting PredETeRMined contact meMbers When the conNEctor bloCk is iN its discOnnected sTATe and beiNg eLecTriCalLY SeParated from saID PredEtErmined ConTact memBerS whEn tHe cOnNector bloCk is in itS cOnNeCtEd sTate. SUCh a conneCtOr bLoCk iS knowN From U.S. pat. No. 4,954,087 WhicH iS iNTenDed for tESt PURposEs AnD to iDenTiFy eleCtriC ComPonents Which are aBle TO pusH aWaY predetErmined first tErMinals from ThE shOrting ROD in the teSting state. The shorting roD In this pRioR art cOnneCtor block Is nOt inteNdeD To shorT circuIt vulNeRabLE ElectRONiC eqUiPment, such aS moS eLemenTs, When The connEctor block is in its dIScoNnected state. MOreOver, THE kNowN ShORt rOd EXteNDS in an open space iN the connecToR BlOck and the sPRinG pArts of tHe contaCt eleMEnts occUpy a large Space. Thus, ThE desIGN of The known coNnector bLock is unsUItablE FoR miniAtuRizatiOn.
u.S. PAt. No. 3,903,385 sHows a cONneCtor pRovideD wIth oppOsite PaIrs of eleCtrical contact members whIch are "ShortEd" bY a shortinG baR AssEmbly when The cOnnector is Not ConNecteD to A PrintEd ciRCuIt bOArd. ThE shoRTing bar asSEmBly COMpRises a shortING Bar ExtenDinG SubstaNtiaLly perpendicular tO The longitudinaL dirECTioN of THe coNtAct members. The sHorTiNG Bar is supPoRted by a spriNg pushinG tHE shorTing baR againSt both cONTaCT membeRs whIch Are somewhAt bEnT To one anOtHeR For thaT purPoSe, whenEver a pRInteD CIrcuit board is absEnt. InSERting A PriNted cIrCuit boaRD intO the connecTor pushes thE shortIng bAr awaY from thE cOntact MemBeRs. Since eacH Contact meMber iS made up Of Two oPpoSite paRts aND Each pAir oF
 incorporated into the gro und faultdetec tio n c ir cuit , an y alternatingl ongi tudinal voltage on the  span  w o uldb eexpos ed to a lo w (lo ng it udi na l )imped anc e to gr ound. If t hepo wer lines ca m einto direc t c ontact withthe  cable  p lan t  of t hetelec ommuni c ations  network,  t h e powe r  linesw o ul d be  shorted to groun d  t h rough the netw ork de vi c e. S oft war e filtersha ve al s o beenu se d t o a t tempt to addr ess this ph e nom enon.Ho wev e r, the  effe ct i ven ess of soft ware  filterstend t o  roll o f f at hi gher f req uen cies .  I thas  b e end is cov e red  that so me  o f the  mos t r e leva ntfreq uenci es for AC imm uni ty a r e h armon ics t hatfa ll ou tsidethe e ff ective range of  tra ditionalsof tw are  f ilter s .
Ther efo re,  thereis a ne e d i nt h e  a rt for enhanced AC  i m m un ity in g roundf au lt detectio n.  Th e pr e s ent i nven t io n relate s to a co nn ector b lo ck com pr isi ngat le a st o ne con tact mem ber,e ach contact me m ber being int e gr a l ly made  an d providedwith a fi rstc on tac t  term inalfo r  e l ectrical contact to  a  conta ct me mber of a mat ing electr i c element,  a s e co n d contact term inaland a spri n g part g iving  the con tact memb e r  a resil ien t c apa cit y in  a predetermi n e d ax ia l direc tio n, thecon nec tor  bl oc k also co mprising  a  s ho rt ing  rode lectrica ll y c on tac tingp redete rmine d co nt ac t  me mbers w h en t he c on ne ctor  bl oc k isin i t s d isconne cted stat e a n d be in gelectri cally separat ed  from said  p red etermi n e d contac t members when the conn e ctor bl ock  is i n it s connect edstate.  Su c h a co nnecto r blo ck  is k nownf r om  U. S.  Pat. No.4 , 954 ,087wh ichis inte nded for test purp o ses  and to ident ify  ele c t ri c c o mp o nen ts whi c h  are able to pu sh away pr ed e te rmined fir s t t er minalsfrom th e sho r ting ro d in thetesting s ta te.T h e s horting ro d in thi s prior a r t con n ec tor b loc k is n ot  in tende d to s h ort  circ uit vu ln erable  elec tr onic equ ipment, such as MOS ele ments,  when  th e connect orb loc k is in i ts d isconnecte d s tat e. Mo reo v er, t he k n ow n s h ort r od e x tends ina nope n sp ace in thec o n nec tor b loc k  and t he s pring parts of th e  contact eleme ntso c cup y a larg espace. Thus, t hede s i gn of th eknown conne ctor blo ck is un suitab le for  miniat u r iz a tion.U.S.  Pa t. No. 3, 903 ,3 8 5 shows  a  c o nnecto r pr ov ided w ith op p osit e pairs of electri cal c o n tactm emb ers w hi ch are" shor ted" by ashorting ba r asse mbly  when  the co nn ectorisno t connecte d  to a pri ntedcircuit  b oard . T he sho rtin g bar a ssem bl y c omprisesa sh o rt in g  ba r ex tendi ng  sub stantiall y  perpend icu l ar to t he  lo n g itudin a ld i rection of  th e con t a ct members .  The sh o rting  bar i s supp orted b y  asp ring pu shi n g  the shor ting bara gai ns t bo th conta ct  mem be rswh ich are somewha t bent t o one an o t her fo r t h at p u rpose,  w henever a pr inted  c i rcuit b o a rdis abse n t.Ins ert inga p rint e d circuit board into the  con necto r  pu shesthe s ho rting ba r  awa y from t h e contact mem bers. Since eac h  co n tact  me m be ris made u p o f  twooppo sit e pa rts  and e achp airo f
 incorporated_into the_ground fault detection circuit,_any alternating_longitudinal_voltage on_the_span would be_exposed to a_low (longitudinal) impedance to_ground. If the_power_lines came into direct contact with the cable plant of the telecommunications network, the_power_lines would_be_shorted_to ground through the network_device. Software filters have also_been used_to attempt to address this phenomenon. However, the_effectiveness_of software filters_tend to roll off at higher frequencies. It has_been discovered that some of the_most relevant frequencies_for_AC_immunity are harmonics that_fall outside the effective range of_traditional software filters.
Therefore, there is a_need in the art for enhanced AC_immunity in ground fault detection. The_present invention relates to a_connector block_comprising at least one contact_member, each contact_member being_integrally made and_provided with a first contact terminal_for electrical contact_to a contact member of a_mating_electric element, a_second_contact_terminal and_a spring part_giving_the contact_member_a resilient capacity in a predetermined_axial_direction, the connector block also comprising a_shorting rod electrically contacting_predetermined_contact members when the_connector block is in its_disconnected state and being electrically separated_from said_predetermined contact_members when the connector block is in its connected state. Such_a connector block is known from_U.S. Pat. No. 4,954,087_which is_intended_for test purposes_and_to identify_electric components which are able to push_away predetermined_first terminals from the shorting rod_in the testing state._The_shorting rod in this prior art_connector block is not intended to_short circuit vulnerable electronic equipment,_such_as_MOS elements, when the connector_block is in its disconnected state._Moreover, the known_short rod extends in an open space_in_the connector block and the spring_parts_of the contact elements occupy a_large_space._Thus, the design of the_known connector block is unsuitable for_miniaturization.
U.S. Pat. No. 3,903,385 shows a connector provided with_opposite pairs of_electrical contact members which are_"shorted"_by_a shorting bar assembly when the connector is not connected_to a_printed circuit board._The shorting bar assembly comprises a shorting bar extending substantially_perpendicular to the longitudinal direction of the_contact members. The shorting bar is supported by a spring pushing_the shorting bar against both contact members which_are somewhat bent to one another for_that purpose, whenever a_printed_circuit board is absent. Inserting a printed_circuit_board_into_the connector pushes_the shorting bar_away from the_contact members._Since each contact_member is_made up of_two_opposite parts and each pair of