CA2185449A1 - Test port for network interface device module - Google Patents
Test port for network interface device moduleInfo
- Publication number
- CA2185449A1 CA2185449A1 CA002185449A CA2185449A CA2185449A1 CA 2185449 A1 CA2185449 A1 CA 2185449A1 CA 002185449 A CA002185449 A CA 002185449A CA 2185449 A CA2185449 A CA 2185449A CA 2185449 A1 CA2185449 A1 CA 2185449A1
- Authority
- CA
- Canada
- Prior art keywords
- plug
- jack
- subscriber
- conductors
- contacts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
- H01R4/2425—Flat plates, e.g. multi-layered flat plates
- H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
- H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/021—Constructional details using pivoting mechanisms for accessing the interior of the apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/028—Subscriber network interface devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/08—Short-circuiting members for bridging contacts in a counterpart
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/301—Circuit arrangements at the subscriber's side of the line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/14—Distribution frames
- H04Q1/144—Plugs used in distribution frames
Abstract
A subscriber module (40) for a network interface device (10) having a jack (100) defining a plug-receiving cavity (102) thereinto, and having a plug (50) insertable into the jack. The plug includes a plurality of interconnecting contacts (56) disposed at a mating end (58) thereof, and the jack includes first and second contacts (106, 112) secured within the plug-receiving cavity in spaced-apart disconnected pairs. Insertion of plug (50) into jack (100) moves interconnecting contacts (56) between associated ones of first and second contacts (106, 112) to electrically interconnect them, completing otherwise unconnected circuits between the distribution cable and the subscriber premise wiring. Preferably plug (50) includes a sealing member (74) therearound to seal the mating interface when plug (50) is inserted into jack (100). Conductors (36) of the premise wiring are terminatable by insulation displacement techniques to terminals (164) using a stuffer cap (152), with terminals (164) connected to second contacts (112) by traces of circuit board (170) mounted within module (40), while first contacts (106) are electrically connected by other traces of board (170) to conductors (38) connected to the distribution cable.
Description
Wo g~/2~405 PCrlUS95101802 2 1 ~44~
TEST PART FOR NETWORK INTERFACE DEVICE MODULE
The present invention i8 directed to telephone network interface devices and more particularly to 5 customer-accessible modules thereof.
Network interface devices provide limited access by a subscriber or customer for testing by the subscriber of the subscriber premises wiring, at a telephone junction box where the subscriber premises wiring is l0 connected to the telephone company distribution cable.
Such junction boxes are also fully accessible to service personnel of the telephone company af ter installation .
One such network interface device is disclosed in U.S.
Patent No. 4,979,209 for a plurality of subscribers, 15 wherein an enclosure includes a primary lid extending over the entire enclosure and securable by service personnel, and a secondary lid over the subscriber-accessible portion of the enclosure securable by the subscribers; such enclosures commonly provide access to 20 the subscriber-acr~R~;hle portion by service personnel but the subscriber-accessible portion remains secured against unauthorized persons. Individual modules within the subscriber-accessible portion are disclosed to include individual security covers such that each 25 subscriber module is secured against access by the other subs cribers .
The individual subscriber module includes a test port or jack electrically connected to both the premises wiring a~d the subscriber-dedicated wiring of the 30 telephone company's distribution cable, enabling the subscriber to remove the port cover and insert the plug of a telephone or other test device to discover the location of a fault disrupting the subscriber' s service .
Successful connection of the telephone or test device 35 ; nrl; ~'~tF'~ that the fault lies in the premises wiring and thus is the r~p~nc;h;lity of the subscriber, whereas an n~nrr~ful connection of the telephone or test device indicates that the fault lies in the wiring of the WO g~/25il0~
2 1 ~f~
telephone company. The performance of such testing by the subscriber enables the subscriber to f ir_t detennine the location of the fault prior to arranging with the telephone company for a service call, thus s~ving subscriber the expense of a telephone company service call when the fault lies in the premises wiring.
Prior art test port8 have been of the type including a c~nventional telephone plug connector having an array of two or four con~acts matable with contacts in the jack, with the plug's contacts affixed to conductor wires ~ nt1ing from the plug ana connected to the premises wiring. Deterioration of the conductor wires extending from the plug has fre~Iuently occurred f rom removal Qnd replacement of the plug f rom and into 1~; the jack, or from exposure of the ~n1l~At~rs to inadvertent d~mage by tools during installation or servicing or testing or otherwise. Occasionally problems of e~posure of the contacts in the jack to moisture have also occurred, necessitating service and repair to the subscriber module.
It is de~ired to provide a subscriber module that eliminates the susceptibility of conductor wires to damage, and ~e corrosion of contact surface~ in the jack by moisttlre.
In the ~3resent invention, a subscriber module ; ncl ~ C a pl~lg having an array of interconnecting contacts alon~ the mating face that are not connected to conductor wires, btlt in essence is a shunt. The plug ic preferably ses~ured to the module by a nDnconducting lanyard such as a strand of high strength flexible plastic, and in~ oq a manually grippable portion ,o~t~n~l; ng from the plug at the end opposite the mating face, for ran~ t;~-n of the plug during removal from the jack and ~-eplace~ent thereinto. A sealing member of 3S Gl ;lC~ mater ~ al is provided in a groove around the plug that deformingly engages side walls of the jack ~ Wo 95/25405 2 1 ~ 5 4 4 9 1 "~
when the plug is fully inserted into the jack, thus providing assured sealing of the mating interface between the plug and j ack .
The jack provides spaced pairs of contacts at the mating face associated with each contact of the plug array and that are by themselves not electrically joined, defining an int~ntinn~l gap in the connection between the distribution cable wiring and the premises wiring, with ones of each contacts of the several pairs being electrically connected to conductors of the distribution cable and others of each contacts of the several pairs being electrically connected to conductors of the premi6es wiring, all completely housed within the module. Upon the plug being secured in the test port or jack, its interconnecting contacts provide an assured electrical connection between the otherwise unconnected associated contacts of the pairs of jack contacts and enabling telephone service to be established between the distribution cable and the premises wiring.
It is an objective of the present invention to provide a subscriber test port of a subscriber module that seals the mating interface against moisture when a test is not being conducted.
It is also an objective to provide a plug that does rlot require conductors that are susceptible to damage by being exposed or require manipulation during removal and reinsertion of the plug.
It is a further ob~ective to provide a subscriber module that includes the capability of placement of testing or other components sealed within the module without requiring modification to the module housing.
An embodiment of the present invention will now be described by way of example with reference to the accompanying drawings.
TEST PART FOR NETWORK INTERFACE DEVICE MODULE
The present invention i8 directed to telephone network interface devices and more particularly to 5 customer-accessible modules thereof.
Network interface devices provide limited access by a subscriber or customer for testing by the subscriber of the subscriber premises wiring, at a telephone junction box where the subscriber premises wiring is l0 connected to the telephone company distribution cable.
Such junction boxes are also fully accessible to service personnel of the telephone company af ter installation .
One such network interface device is disclosed in U.S.
Patent No. 4,979,209 for a plurality of subscribers, 15 wherein an enclosure includes a primary lid extending over the entire enclosure and securable by service personnel, and a secondary lid over the subscriber-accessible portion of the enclosure securable by the subscribers; such enclosures commonly provide access to 20 the subscriber-acr~R~;hle portion by service personnel but the subscriber-accessible portion remains secured against unauthorized persons. Individual modules within the subscriber-accessible portion are disclosed to include individual security covers such that each 25 subscriber module is secured against access by the other subs cribers .
The individual subscriber module includes a test port or jack electrically connected to both the premises wiring a~d the subscriber-dedicated wiring of the 30 telephone company's distribution cable, enabling the subscriber to remove the port cover and insert the plug of a telephone or other test device to discover the location of a fault disrupting the subscriber' s service .
Successful connection of the telephone or test device 35 ; nrl; ~'~tF'~ that the fault lies in the premises wiring and thus is the r~p~nc;h;lity of the subscriber, whereas an n~nrr~ful connection of the telephone or test device indicates that the fault lies in the wiring of the WO g~/25il0~
2 1 ~f~
telephone company. The performance of such testing by the subscriber enables the subscriber to f ir_t detennine the location of the fault prior to arranging with the telephone company for a service call, thus s~ving subscriber the expense of a telephone company service call when the fault lies in the premises wiring.
Prior art test port8 have been of the type including a c~nventional telephone plug connector having an array of two or four con~acts matable with contacts in the jack, with the plug's contacts affixed to conductor wires ~ nt1ing from the plug ana connected to the premises wiring. Deterioration of the conductor wires extending from the plug has fre~Iuently occurred f rom removal Qnd replacement of the plug f rom and into 1~; the jack, or from exposure of the ~n1l~At~rs to inadvertent d~mage by tools during installation or servicing or testing or otherwise. Occasionally problems of e~posure of the contacts in the jack to moisture have also occurred, necessitating service and repair to the subscriber module.
It is de~ired to provide a subscriber module that eliminates the susceptibility of conductor wires to damage, and ~e corrosion of contact surface~ in the jack by moisttlre.
In the ~3resent invention, a subscriber module ; ncl ~ C a pl~lg having an array of interconnecting contacts alon~ the mating face that are not connected to conductor wires, btlt in essence is a shunt. The plug ic preferably ses~ured to the module by a nDnconducting lanyard such as a strand of high strength flexible plastic, and in~ oq a manually grippable portion ,o~t~n~l; ng from the plug at the end opposite the mating face, for ran~ t;~-n of the plug during removal from the jack and ~-eplace~ent thereinto. A sealing member of 3S Gl ;lC~ mater ~ al is provided in a groove around the plug that deformingly engages side walls of the jack ~ Wo 95/25405 2 1 ~ 5 4 4 9 1 "~
when the plug is fully inserted into the jack, thus providing assured sealing of the mating interface between the plug and j ack .
The jack provides spaced pairs of contacts at the mating face associated with each contact of the plug array and that are by themselves not electrically joined, defining an int~ntinn~l gap in the connection between the distribution cable wiring and the premises wiring, with ones of each contacts of the several pairs being electrically connected to conductors of the distribution cable and others of each contacts of the several pairs being electrically connected to conductors of the premi6es wiring, all completely housed within the module. Upon the plug being secured in the test port or jack, its interconnecting contacts provide an assured electrical connection between the otherwise unconnected associated contacts of the pairs of jack contacts and enabling telephone service to be established between the distribution cable and the premises wiring.
It is an objective of the present invention to provide a subscriber test port of a subscriber module that seals the mating interface against moisture when a test is not being conducted.
It is also an objective to provide a plug that does rlot require conductors that are susceptible to damage by being exposed or require manipulation during removal and reinsertion of the plug.
It is a further ob~ective to provide a subscriber module that includes the capability of placement of testing or other components sealed within the module without requiring modification to the module housing.
An embodiment of the present invention will now be described by way of example with reference to the accompanying drawings.
Woss/2s405 L~ ~ ~5~
FIGURE 1 is an iaometric view of a network interface device with the primary lid closed and the secondary lid opened illustrating the subscriber portion cnnr~ning an array of aubscriber modules r~n~;~;ning the 5 present invention;
FIGURE 2 is an isometric view of a subscriber module with the plug removed from the jack and showin~
conductors F~YtPn~ing to the module from premise wiring and from a distribution cable;
FIGURE 3 is a cross-sectional view of the plug fully inserted within the jack and an interconnecting contact interconnecting a pair of contacts therein; and FIGURE 4 is an isometric view of the plug in place within the jack and a stuffer cap lifted to its open 15 position for te~mination o~ subscriber wiring; and FIGURE 5 is an isometric ~r] oded view of the module of FI~;S. 1 to 4 showing the circuit board with contacts and terminals mounted thereto.
In FIG. 1 i9 shown network interface device 10 20 comprising an enclosure 12 having a subscriber portion 14 and a t~ rh~ln.o company portion 16, with the enclosure 12 `having a primary lid 18 secured at lock 20 to prevent access by non- service persoImel to portion 16. A pair af distribution cables 22 are shown 25 extending from portion 16. Secondary lid 30 is shown in the opened position and includes a lock 32 for being secured to pri~slary lid 18 when closed, with an array of subscriber modules 4a mounted within subscriber portion 14 . Individual subscriber cables 34 are shown o~t~nfii n~
30 from subscriber portion 14 of enclosure 12 that extend into the premises of the customer or subscriber, and the conductors 36 of each subscriber cable are electrically connected to circuits within an associated subscriber module 40 mounted in subscriber portion 14 of enclosure 35 12.
~ W095/2.W05 2 1 ~ ~ 4 4 9 PCTIUS9~/01802 Security covers 42 are seen in their open positions and are pivotally mounted at hinges 44 to respective modules 40 to be rotated to a closed position and thereafter locked if desired by the respective subscriber at lock locations 46, such as by using conventional Size 10 padlocks.
Bach module 40 includes a cable face 48 for connection of ends of conductors 36 of subscriber cables 34 to tf~r~n;n~lc within the module, and also provides electrical connections to conductors 38 PYtPntl1ng to telephone company portion 16 for connection to conductors of a distribution cable 22. A plug 50 is affixed to module 40 such as by a lanyard 52 and 1nrll~rlPc a tab portion 54 extending upwardly from the module enabling manual gripping for removal of the plug from its respective jack.
Referring now to ~IGS. 2 and 3, plug 50 is shown to have a polarized mating end 58 as is conv~ntir~n~l with plug connectors in use in the telephone industry to connect telephones to premise wiring at conventional jacks having complementarily shaped plug-receiving cavities. Plug 50 is formed of dielectric material such as th~ ctic resin, and is seen to have four interconnecting contacts 56 affixed to mating face 58 at a mating end of the plug and including contact sections 60,62 along side surfaces 64,66 connected by a body section 68. Interconnecting contacts 56 are seen disposed within corr~cprnA;ng grooves 70 secured therein such as by barbs 72 at ends of contact sections 60, 62 .
Spaced rearwardly from mating face 58 is an elastomeric sealing member 74 such as an O-ring seated in a groove 76 extending around intPrmP~ te section 78. Plug 50 also includes an enlarged diameter cover flange 80 to traverse and close the opening to jack 100.
Jack 100 is defined by dielectric housing 98 of module 40 and includ--s a plu -receiving cavity 102 with Wo ss/2~40s 2 1 8 5 ~ 4 ~ L ~,~.~ ~
a mating interEace adjacent bottom 104 of the cavity.
First contacts 106 are arrayed in respective grooves 108 along a first side 110 and second cQntacts 112 in grooves 114 all~ng a second side 116, all having cantilever beam contact arms 118,120 associated with contact sections 60,62 of interconnecting contacts 56 of plug 50, ~ nfl;ng toward cavity bottom 104 at angles into plug- recelving cavity 102 in oppo9ed pairs to become electril~ally engaged by interconnecting contacts 56 and thus become interconnected to complete respective circuits upon ~ull insertion of plug 50 into cavity 102.
Annular s~lrface portion 122 of enlarged diameter cavity portion 124 is engaged by sealing member 74 o~ plug 50 upon ~ull inse_tion to define an envirnn"-ntAl seal protecting the mating interface at the bottom o~ cavity 102. A friction fit of 0-ring 74 against surfac~
portion 122 is sufficient eo retain plug 50 withirl jack 100 without a :Latching a~Lall~. . Plug-receiving cavity 102 and cnn~ c 106,112 therein define a test port for recelpt o~ a plug for testing of the circuits of the subscriber premise wiring and the distribution cable, and with plug 50 fully inserted thereinto is sealed .
First contacts 1.06 include posts 126 extending through holes of circuit board 170 for ~oldering to associated tra~es ~not shown) of board 170 l and second contacts 110 ~c m; 1 Arl y include posts 128 in holes of board 170 and are soldered to other traces of board 17~.
In PIG. 4, wire tPrm~n~inn 9ection 150 is seen to include a stuffer cap 152 di9po9ed within a slot 154 and rl~ovable vertically between a pret~rmin~tion or open position, and a termination or closed position, and that includes a grippable section 156 to be --n;r~ ted.
Stuffer cap 152 is shown to have four wire-receiving sections 158 ~or receipt thereinto of end~ of respective conductors 36 ~hen in the open position, whereafter WO9S/25.105 2 1 ~ V..,~_ ~,~ to the closed position moves the wires into support slots 160 of housing 98 and into insulation displacement slots 162 of t~nm;nAlC 164 in a manner generally conventionally known. T~rm;nAl c 164 include post sections 166 and are mounted on a circuit board 170 traversing the bottom of module 40 (best seen in FIG. 5 and are electrically connected to respective traces thereon .
On circuit board 1701 the traces from t~nminAls 164 extend to respective ones of second contacts 112 of j ack 100 and electrically connected thereto, thus completing circuits from the second contacts 112 to conductors 36 of the subscriber cable 34. Additional traces extend from first t~rm;nAl.q 106 to t~n1n~tions with conductors 38 that extend into telephone company portion 16 of network interface device 10 for connection to distribution cables 22. Preferably probe contacts 172 (PIG. 5) have post sections and are mounted onto circuit board 170 j oined to selected traces thereof and ~YtGn~;n~ to exposed contact sections 174 within recesses 176 along accessible surface 178 of module 40 for testing by service personnel.
It is desired that conductors 38 are connected to associated conductors of the cable in the telephone company portion 16 of the network interface device, by means of protector modules (not shown) such as are disclosed in U.S. Patent No. 51317l474. Such protector modules establish protection against surges of voltage and current along the circuits thus protecting oqn1r7n~nt 3 0 f rom damage .
Preferably upon assembly of module 40 with contacts 106 l 112 and t~nm~ nA 1 c 164 mounted onto circuit board 170, and t-~rm;nAt;on of conductors 38 to traces of circuit board 170l potting material 180 is disposed along the outwardly facing surface of the circuit board within board-receiving recess 182 into the bottom face Wo 9~/2s405 p~rrusssrnlso2 21,~544 of module 40, thus envir~n--^nt~l ly sealing the electrical cQnnections within module 40.
One aspect of the present inventiQn i8 circuit board ~70 within a subscriber module 40, that enables 5 utilization o~ additional electrical or electronic compone~ts within the module, such as a maintenanc:e test unit ~not shc)~:n), or a half-ringer ~n~hl~n~ computer polling of sub~criber lines to the module for fault-free verification even in the absence o~ a telephone unit 10 properly conne~ted to premise wiring wlthin the premises .
Variation~ and modif ications can be devised to the o~T~ho~ir~-n~ o~ ~he invention disclosed herein, that are within the spirit o4 the invention and the scope o~ the 15 clai~s.
FIGURE 1 is an iaometric view of a network interface device with the primary lid closed and the secondary lid opened illustrating the subscriber portion cnnr~ning an array of aubscriber modules r~n~;~;ning the 5 present invention;
FIGURE 2 is an isometric view of a subscriber module with the plug removed from the jack and showin~
conductors F~YtPn~ing to the module from premise wiring and from a distribution cable;
FIGURE 3 is a cross-sectional view of the plug fully inserted within the jack and an interconnecting contact interconnecting a pair of contacts therein; and FIGURE 4 is an isometric view of the plug in place within the jack and a stuffer cap lifted to its open 15 position for te~mination o~ subscriber wiring; and FIGURE 5 is an isometric ~r] oded view of the module of FI~;S. 1 to 4 showing the circuit board with contacts and terminals mounted thereto.
In FIG. 1 i9 shown network interface device 10 20 comprising an enclosure 12 having a subscriber portion 14 and a t~ rh~ln.o company portion 16, with the enclosure 12 `having a primary lid 18 secured at lock 20 to prevent access by non- service persoImel to portion 16. A pair af distribution cables 22 are shown 25 extending from portion 16. Secondary lid 30 is shown in the opened position and includes a lock 32 for being secured to pri~slary lid 18 when closed, with an array of subscriber modules 4a mounted within subscriber portion 14 . Individual subscriber cables 34 are shown o~t~nfii n~
30 from subscriber portion 14 of enclosure 12 that extend into the premises of the customer or subscriber, and the conductors 36 of each subscriber cable are electrically connected to circuits within an associated subscriber module 40 mounted in subscriber portion 14 of enclosure 35 12.
~ W095/2.W05 2 1 ~ ~ 4 4 9 PCTIUS9~/01802 Security covers 42 are seen in their open positions and are pivotally mounted at hinges 44 to respective modules 40 to be rotated to a closed position and thereafter locked if desired by the respective subscriber at lock locations 46, such as by using conventional Size 10 padlocks.
Bach module 40 includes a cable face 48 for connection of ends of conductors 36 of subscriber cables 34 to tf~r~n;n~lc within the module, and also provides electrical connections to conductors 38 PYtPntl1ng to telephone company portion 16 for connection to conductors of a distribution cable 22. A plug 50 is affixed to module 40 such as by a lanyard 52 and 1nrll~rlPc a tab portion 54 extending upwardly from the module enabling manual gripping for removal of the plug from its respective jack.
Referring now to ~IGS. 2 and 3, plug 50 is shown to have a polarized mating end 58 as is conv~ntir~n~l with plug connectors in use in the telephone industry to connect telephones to premise wiring at conventional jacks having complementarily shaped plug-receiving cavities. Plug 50 is formed of dielectric material such as th~ ctic resin, and is seen to have four interconnecting contacts 56 affixed to mating face 58 at a mating end of the plug and including contact sections 60,62 along side surfaces 64,66 connected by a body section 68. Interconnecting contacts 56 are seen disposed within corr~cprnA;ng grooves 70 secured therein such as by barbs 72 at ends of contact sections 60, 62 .
Spaced rearwardly from mating face 58 is an elastomeric sealing member 74 such as an O-ring seated in a groove 76 extending around intPrmP~ te section 78. Plug 50 also includes an enlarged diameter cover flange 80 to traverse and close the opening to jack 100.
Jack 100 is defined by dielectric housing 98 of module 40 and includ--s a plu -receiving cavity 102 with Wo ss/2~40s 2 1 8 5 ~ 4 ~ L ~,~.~ ~
a mating interEace adjacent bottom 104 of the cavity.
First contacts 106 are arrayed in respective grooves 108 along a first side 110 and second cQntacts 112 in grooves 114 all~ng a second side 116, all having cantilever beam contact arms 118,120 associated with contact sections 60,62 of interconnecting contacts 56 of plug 50, ~ nfl;ng toward cavity bottom 104 at angles into plug- recelving cavity 102 in oppo9ed pairs to become electril~ally engaged by interconnecting contacts 56 and thus become interconnected to complete respective circuits upon ~ull insertion of plug 50 into cavity 102.
Annular s~lrface portion 122 of enlarged diameter cavity portion 124 is engaged by sealing member 74 o~ plug 50 upon ~ull inse_tion to define an envirnn"-ntAl seal protecting the mating interface at the bottom o~ cavity 102. A friction fit of 0-ring 74 against surfac~
portion 122 is sufficient eo retain plug 50 withirl jack 100 without a :Latching a~Lall~. . Plug-receiving cavity 102 and cnn~ c 106,112 therein define a test port for recelpt o~ a plug for testing of the circuits of the subscriber premise wiring and the distribution cable, and with plug 50 fully inserted thereinto is sealed .
First contacts 1.06 include posts 126 extending through holes of circuit board 170 for ~oldering to associated tra~es ~not shown) of board 170 l and second contacts 110 ~c m; 1 Arl y include posts 128 in holes of board 170 and are soldered to other traces of board 17~.
In PIG. 4, wire tPrm~n~inn 9ection 150 is seen to include a stuffer cap 152 di9po9ed within a slot 154 and rl~ovable vertically between a pret~rmin~tion or open position, and a termination or closed position, and that includes a grippable section 156 to be --n;r~ ted.
Stuffer cap 152 is shown to have four wire-receiving sections 158 ~or receipt thereinto of end~ of respective conductors 36 ~hen in the open position, whereafter WO9S/25.105 2 1 ~ V..,~_ ~,~ to the closed position moves the wires into support slots 160 of housing 98 and into insulation displacement slots 162 of t~nm;nAlC 164 in a manner generally conventionally known. T~rm;nAl c 164 include post sections 166 and are mounted on a circuit board 170 traversing the bottom of module 40 (best seen in FIG. 5 and are electrically connected to respective traces thereon .
On circuit board 1701 the traces from t~nminAls 164 extend to respective ones of second contacts 112 of j ack 100 and electrically connected thereto, thus completing circuits from the second contacts 112 to conductors 36 of the subscriber cable 34. Additional traces extend from first t~rm;nAl.q 106 to t~n1n~tions with conductors 38 that extend into telephone company portion 16 of network interface device 10 for connection to distribution cables 22. Preferably probe contacts 172 (PIG. 5) have post sections and are mounted onto circuit board 170 j oined to selected traces thereof and ~YtGn~;n~ to exposed contact sections 174 within recesses 176 along accessible surface 178 of module 40 for testing by service personnel.
It is desired that conductors 38 are connected to associated conductors of the cable in the telephone company portion 16 of the network interface device, by means of protector modules (not shown) such as are disclosed in U.S. Patent No. 51317l474. Such protector modules establish protection against surges of voltage and current along the circuits thus protecting oqn1r7n~nt 3 0 f rom damage .
Preferably upon assembly of module 40 with contacts 106 l 112 and t~nm~ nA 1 c 164 mounted onto circuit board 170, and t-~rm;nAt;on of conductors 38 to traces of circuit board 170l potting material 180 is disposed along the outwardly facing surface of the circuit board within board-receiving recess 182 into the bottom face Wo 9~/2s405 p~rrusssrnlso2 21,~544 of module 40, thus envir~n--^nt~l ly sealing the electrical cQnnections within module 40.
One aspect of the present inventiQn i8 circuit board ~70 within a subscriber module 40, that enables 5 utilization o~ additional electrical or electronic compone~ts within the module, such as a maintenanc:e test unit ~not shc)~:n), or a half-ringer ~n~hl~n~ computer polling of sub~criber lines to the module for fault-free verification even in the absence o~ a telephone unit 10 properly conne~ted to premise wiring wlthin the premises .
Variation~ and modif ications can be devised to the o~T~ho~ir~-n~ o~ ~he invention disclosed herein, that are within the spirit o4 the invention and the scope o~ the 15 clai~s.
Claims (14)
1. A subscriber module (40) for a network interface device (10) having electrical connections between conductors (36) of subscriber premise wiring (34) and conductors (38) of a distribution cable (22) and enabling subscriber testing of the subscriber premise wiring, comprising:
a dielectric housing (98) defining a jack having a plug-receiving cavity (102) into an accessible face thereof and having a mating face (104) therewithin, first and second contacts (106,112) mounted adjacent said mating face in associated opposed pairs and including respective contact sections (118 ,120 ) exposed therealong in said plug-receiving cavity (102);
said dielectric housing (98) having a wire termination section (150) including terminals (164) exposed for termination to respective conductors (36) of subscriber premise wiring, and associated stuffer caps (152) actuable to terminate said conductors (36) to said terminals (164);
a circuit board (170 ) secured within said dielectric housing (98) and including traces electrically connected to said first and second contacts (106,112) proximate said jack, said traces connecting said first contacts (106) to conductors at least electrically connected to associated conductors (38) of said distribution cable (22) and connecting said second contacts (112) to respective said terminals (164) proximate said wire termination section (150); and a plug (50) complementary to said jack (100) and insertable and latchable therewithin, said plug including interconnecting contacts (56) mounted to a mating end (58) thereof associated with said mating face (104) of said jack (100), each said interconnecting contact (56) being electrically isolated from other conductive media and including a body section (68) joining first and second contact sections (60,62) exposed to engage said first and second contacts (106,112) of said jack (100) upon full insertion of said plug (50) into said plug-receiving cavity (102) thereof, thereby interconnecting said first contacts (106) with associated said second contacts (112) and completing otherwise unconnected respective circuits between conductors (36) of said subscriber premise wiring (34) and associated conductors (38) of said distribution cable (22) when said plug is fully inserted in said jack.
a dielectric housing (98) defining a jack having a plug-receiving cavity (102) into an accessible face thereof and having a mating face (104) therewithin, first and second contacts (106,112) mounted adjacent said mating face in associated opposed pairs and including respective contact sections (118 ,120 ) exposed therealong in said plug-receiving cavity (102);
said dielectric housing (98) having a wire termination section (150) including terminals (164) exposed for termination to respective conductors (36) of subscriber premise wiring, and associated stuffer caps (152) actuable to terminate said conductors (36) to said terminals (164);
a circuit board (170 ) secured within said dielectric housing (98) and including traces electrically connected to said first and second contacts (106,112) proximate said jack, said traces connecting said first contacts (106) to conductors at least electrically connected to associated conductors (38) of said distribution cable (22) and connecting said second contacts (112) to respective said terminals (164) proximate said wire termination section (150); and a plug (50) complementary to said jack (100) and insertable and latchable therewithin, said plug including interconnecting contacts (56) mounted to a mating end (58) thereof associated with said mating face (104) of said jack (100), each said interconnecting contact (56) being electrically isolated from other conductive media and including a body section (68) joining first and second contact sections (60,62) exposed to engage said first and second contacts (106,112) of said jack (100) upon full insertion of said plug (50) into said plug-receiving cavity (102) thereof, thereby interconnecting said first contacts (106) with associated said second contacts (112) and completing otherwise unconnected respective circuits between conductors (36) of said subscriber premise wiring (34) and associated conductors (38) of said distribution cable (22) when said plug is fully inserted in said jack.
2. The subscriber module (40) as set forth in claim 1 wherein said plug (50) further includes a sealing member (74) seated in a groove (76) around an intermediate section (78) of said plug spaced from said mating end (58), engaging and compressed by a corresponding surface portion (122) around said plug-receiving cavity (102) for sealing said mating interface when said plug is fully inserted into said jack.
3. The subscriber module (40) as set forth in claim 1 wherein said plug (50) includes a manually grippable tab (54) extending outwardly therefrom enabling gripping thereof for removal of said plug from said jack during testing.
4. The subscriber module (40) as set forth in claim 1 wherein said plug (50) is secured to said module (40) by a lanyard (52).
5. The subscriber module (40) as set forth in claim 1 wherein each said stuffer cap (152) includes a manually grippable tab (156) extending outwardly therefrom enabling gripping thereof for movement of said stuffer cap (152) between said open and closed positions.
6. The subscriber module (40) as set forth in claim 1 wherein each said stuffer cap (152) is secured in a respective said slot (154) when in said open position.
7. The subscriber module (40) as set forth in claim 1 further including probe contacts (172) mounted onto said circuit board (170) and electrically connected to selected said traces and having ends (174) exposed along a top surface (178) enabling testing by service personnel.
8. The subscriber module (40) as set forth in claim 1 wherein potting material (180) is disposed along a bottom face of said dielectric housing (98) upon securing said circuit board (170) therewithin thereby sealing said electrical terminations within the module (40).
9. The subscriber module (40) as set forth in claim 1 wherein each said first and second contact (106,112) includes an outwardly deflectable contact section (118,120) disposed at an angle into said plug-receiving cavity (102) prior to engagement and deflection outwardly by a corresponding said contact section (60,62) of a corresponding said interconnecting contact (56) of said plug.
10. The subscriber module (40) as set forth in claim 9 wherein each said interconnecting contact (56) is disposed within a respective groove (70) of said mating end (58) of said plug (50), with said body section (68) thereof traversing a front surface of said mating end (58) and each said contact section (60, 62) extending along a side surface (64,66) of said mating end (58).
11. A test port (100,124) of a subscriber module (40) of a network interface device (10) wherein conductors (38) of distribution cable (22) are to be connected to conductors (36) of premise wiring (34) of a subscriber of telephone service, comprising:
a jack (100) including a plug-receiving cavity (102) and an array of contact members (106,112) exposed for engagement at a mating interface within said plug-receiving cavity (102);
a plug member (50) insertable into and removable from said plug-receiving cavity (102) and including an array of contact members (56) exposed to be engageable with said jack contact members (106,112), with said plug member (50) removable from said jack (100) to permit insertion of another plug member for testing;
a sealing member (74) disposed continuously about an intermediate section (78) of said plug member (50) spaced from a mating end portion thereof; and an enlarged portion (124) of said plug-receiving cavity (102) adjacent an entrance thereto having side wall surfaces (122) engageable with said sealing member (74) continuously about said enlarged portion (124), whereby the mating interface of said jack and plug member is sealed when the plug member is fully inserted into the jack.
a jack (100) including a plug-receiving cavity (102) and an array of contact members (106,112) exposed for engagement at a mating interface within said plug-receiving cavity (102);
a plug member (50) insertable into and removable from said plug-receiving cavity (102) and including an array of contact members (56) exposed to be engageable with said jack contact members (106,112), with said plug member (50) removable from said jack (100) to permit insertion of another plug member for testing;
a sealing member (74) disposed continuously about an intermediate section (78) of said plug member (50) spaced from a mating end portion thereof; and an enlarged portion (124) of said plug-receiving cavity (102) adjacent an entrance thereto having side wall surfaces (122) engageable with said sealing member (74) continuously about said enlarged portion (124), whereby the mating interface of said jack and plug member is sealed when the plug member is fully inserted into the jack.
12. The test port (100,124) as set forth in claim 11. wherein said sealing member (74) is an annular formation of compressible material having an outermost diameter larger than the inner diameter of said enlarged portion (78) of said plug-receiving cavity (102) adjacent thereto, and compressible radially inwardly thereby.
13. The test port (100,124) as set forth in claim 12 wherein said sealing member (74) is a separate ring of compressible material seated within a groove (76) in said intermediate portion (78) of said plug member (50).
14. A test port (100,124) of a subscriber module of a network interface device (10) wherein conductors (38) of distribution cable (22) are connected to conductors (36) of premise wiring (34) of a subscriber of telephone service, comprising:
a jack (100) including a plug-receiving cavity (102) and an array of contact members (106,112) exposed for engagement at a mating interface within said plug-receiving cavity (102);
a plug member (50) insertable into and removable from said plug-receiving cavity (102) and including an array of contact members (56) exposed to be engageable with said jack contact members (106,112), with said plug member (50) removable from said jack (100) to permit insertion of another plug member for testing;
said contact members (106,112) of said jack (100) are arranged in opposing pairs spaced apart and electrically unconnected when said plug member is unmated from said jack, one contact member (106) of each said pair being connected to a circuit extending to a distribution cable (22) and the other contact member (112) of each said pair being connected to a circuit extending to premise wiring (34) of a subscriber of telephone service; and said contact members (56) of said plug member (50) being unconnected to any circuit when said plug member is unmated from said jack, each said contact member (56) including contact sections (60,62) associated with said one and a said other of an associated pair of said contact members (106,112) of said jack (100), defining interconnecting contacts adapted to interconnect said ones and others of said pairs of contact members (106,112) of said jack when said plug member is fully inserted into said jack, thus interconnecting otherwise unconnected ones of said conductors (38) of said distribution cable (22) and associated conductors (36) of said premise wiring (34).
a jack (100) including a plug-receiving cavity (102) and an array of contact members (106,112) exposed for engagement at a mating interface within said plug-receiving cavity (102);
a plug member (50) insertable into and removable from said plug-receiving cavity (102) and including an array of contact members (56) exposed to be engageable with said jack contact members (106,112), with said plug member (50) removable from said jack (100) to permit insertion of another plug member for testing;
said contact members (106,112) of said jack (100) are arranged in opposing pairs spaced apart and electrically unconnected when said plug member is unmated from said jack, one contact member (106) of each said pair being connected to a circuit extending to a distribution cable (22) and the other contact member (112) of each said pair being connected to a circuit extending to premise wiring (34) of a subscriber of telephone service; and said contact members (56) of said plug member (50) being unconnected to any circuit when said plug member is unmated from said jack, each said contact member (56) including contact sections (60,62) associated with said one and a said other of an associated pair of said contact members (106,112) of said jack (100), defining interconnecting contacts adapted to interconnect said ones and others of said pairs of contact members (106,112) of said jack when said plug member is fully inserted into said jack, thus interconnecting otherwise unconnected ones of said conductors (38) of said distribution cable (22) and associated conductors (36) of said premise wiring (34).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US08/213,137 US5420920A (en) | 1994-03-15 | 1994-03-15 | Network interface device module providing sealed customer-accessible test port |
US08/213,137 | 1994-03-15 |
Publications (1)
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CA2185449A1 true CA2185449A1 (en) | 1995-09-21 |
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CA002185449A Abandoned CA2185449A1 (en) | 1994-03-15 | 1995-02-13 | Test port for network interface device module |
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US (3) | US5420920A (en) |
EP (1) | EP0750823B1 (en) |
JP (1) | JPH10502497A (en) |
KR (1) | KR970701978A (en) |
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-
1995
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- 1995-01-25 GR GR950100023A patent/GR1002629B/en unknown
- 1995-02-13 EP EP95911703A patent/EP0750823B1/en not_active Expired - Lifetime
- 1995-02-13 BR BR9507097A patent/BR9507097A/en not_active Application Discontinuation
- 1995-02-13 WO PCT/US1995/001802 patent/WO1995025405A1/en active IP Right Grant
- 1995-02-13 CA CA002185449A patent/CA2185449A1/en not_active Abandoned
- 1995-02-13 DE DE69512642T patent/DE69512642T2/en not_active Expired - Lifetime
- 1995-02-13 KR KR1019960705033A patent/KR970701978A/en not_active Application Discontinuation
- 1995-02-13 AU AU19173/95A patent/AU1917395A/en not_active Abandoned
- 1995-02-13 JP JP7524024A patent/JPH10502497A/en active Pending
- 1995-02-13 CN CN95192716A patent/CN1084111C/en not_active Expired - Fee Related
- 1995-03-01 TR TR00208/95A patent/TR28905A/en unknown
- 1995-05-16 US US08/442,032 patent/US5600716A/en not_active Expired - Fee Related
-
1996
- 1996-01-17 US US08/587,690 patent/US5625686A/en not_active Expired - Fee Related
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JPH10502497A (en) | 1998-03-03 |
CN1084111C (en) | 2002-05-01 |
DE69512642T2 (en) | 2000-04-20 |
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TR28905A (en) | 1997-07-17 |
US5420920A (en) | 1995-05-30 |
EP0750823A1 (en) | 1997-01-02 |
EP0750823B1 (en) | 1999-10-06 |
BR9507097A (en) | 1997-09-23 |
AU1917395A (en) | 1995-10-03 |
PH30838A (en) | 1997-11-03 |
US5600716A (en) | 1997-02-04 |
US5625686A (en) | 1997-04-29 |
KR970701978A (en) | 1997-04-12 |
GR950100023A (en) | 1995-11-30 |
CN1146843A (en) | 1997-04-02 |
DE69512642D1 (en) | 1999-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |