EP0990280B1 - Schutzstecker für eine einrichtung der telekommunikationstechnik - Google Patents

Schutzstecker für eine einrichtung der telekommunikationstechnik Download PDF

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Publication number
EP0990280B1
EP0990280B1 EP99920672A EP99920672A EP0990280B1 EP 0990280 B1 EP0990280 B1 EP 0990280B1 EP 99920672 A EP99920672 A EP 99920672A EP 99920672 A EP99920672 A EP 99920672A EP 0990280 B1 EP0990280 B1 EP 0990280B1
Authority
EP
European Patent Office
Prior art keywords
contacts
contact
housing
safety plug
plug according
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.)
Expired - Lifetime
Application number
EP99920672A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0990280A1 (de
Inventor
Klaus-Dieter Burmeister
Johann Georg Hajok
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Deutschland GmbH
Original Assignee
Quante GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Quante GmbH filed Critical Quante GmbH
Publication of EP0990280A1 publication Critical patent/EP0990280A1/de
Application granted granted Critical
Publication of EP0990280B1 publication Critical patent/EP0990280B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
    • 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
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection

Definitions

  • the invention relates to a protective plug for a Establishment of telecommunications technology according to the Preamble of claim 1.
  • Protective plugs are usually used, which are connected to a open side of the housing of the connection device on or can be inserted and the components required for protection exhibit.
  • the protective plugs are usually for protection of a twin wire. This means, that they pair the adjacent contacts of the tap incoming and outgoing side and with the Connect protective components electrically.
  • a protective plug according to the preamble of claim 1 is over. known from EP 0 405 337 A2 and has a housing, several tapping contacts, one earth contact and several wired components.
  • the contacts are as strip-shaped sheet metal elements formed in the Clamping slot one wire each of the wired component is jammed.
  • the wired components are above the Contacts arranged so that the known protective plug has a comparatively large overall height.
  • the Tapping contacts formed on a circuit board which in attached condition between the contact tabs of the as Isolating contacts trained contacts of the associated Terminal block is inserted.
  • the conductor track grabs the Incoming and outgoing contacts from time to time conducts the current via wired protective components that are connected to the PCB are soldered.
  • a circuit board is always subject to the risk that the individual layers separate from each other. It also means one considerable manufacturing effort, the individual wired Solder components to the circuit board.
  • these extend largely perpendicular to the PCB. They are located on the top of the circuit board and cause this known protective plug comparatively large housing needed. This means in that Area of the terminal block above the contacts considerable space requirement.
  • the protective plug known from EP 0 471 167 A1 a three-pole surge arrester that is not wired is, via an intermediate sheet metal part with a PCB connected. This can result in use of an unwired surge arrester Space requirements can be reduced. This well-known protective plug is due to the manufacturing costs the need for a circuit board is still disadvantageous.
  • US 4,113,340 discloses a protective device with a housing and a wired protective component / that is arranged between tapping contacts by multiple Bends through 180 ° are extremely complicated. About that further extend in this embodiment Tapping contacts not outside the housing, but the Protective device shown is intended for above contacts of an establishment of the Telecommunications technology to be applied.
  • the invention has for its object a protective plug for a facility of telecommunications technology too create that simple and with little effort is producible and at the same time a reliable one Protection for those components and devices can be achieved can, the one with the protective plug Connection device are connected downstream.
  • the tapping the contacts of the connection device Contacts of the protective plug are considered largely strip-shaped sheet metal elements. These point each have at least one clamping or contact slot, in a wire of a wired component is clamped in each case is. As a result, the wired component is immediate electrically conductive to the contact of the protective plug connected.
  • the protective plug has the described strip-shaped and therefore simple designed sheet metal elements as tapping contacts, in their Clamping slots each directly the wires of the used wired protective components are jammed. So are also the clamps known in the prior art or other connecting elements between the tapping contacts and the protective components can be dispensed with.
  • strip-shaped sheet metal elements as Tapping contacts compared to the conventional used circuit boards the main advantage that the current-carrying contacts can be massively formed.
  • a massive design of this ladder i.e. the facility of a certain line cross section, is for the management of the occurring currents required.
  • On the previously used Printed circuit boards can make the contact tracks from technical Reasons only comparatively thin, so that the current-carrying cross section is hereby greatly limited.
  • the protective plug according to the invention is not open limited an embodiment that the protection of electronic components and devices is used by means of a single, specific twin wire to a connection device are connected. Rather, with the previous one described structure also a so-called multi-core Protective plug to be carried out with those components is equipped for the protection of electronic devices or components that are required over several different pairs with the protective plug providing connecting device are connected. In this The protective plug could be due to the inclusion of the case Protective components for several double wires also as a magazine be designated. However, it is preferred that the protective plug according to the invention two tapping contacts or two Has pairs of tapping contacts so that it is for protection a single pair is designed.
  • the strip-shaped tapping contacts at least in sections parallel.
  • the wired components are parallel between the arranged tapping contacts.
  • Protective plug through the parallel tapping contacts is a simple and clear arrangement of the protective components allows.
  • two levels one level for tapping the incoming Ladder and a level for tapping the outgoing ladder, Are defined. All protective components are between them arranged on both levels. This arrangement is extreme space-saving.
  • the dimension of the protective plug and the space required for its installation can be significantly reduced.
  • this one Current protection preferably in the form of a thermal resistor, and / or surge protection in the form of a gas arrester and / or a surge protector, preferably in the form a fine protection diode or a solid state arrester, having.
  • a gas arrester and / or a surge protector preferably in the form a fine protection diode or a solid state arrester, having.
  • Such an electronic arrester has in advantageously a close response tolerance.
  • the level of the strip-shaped contacts is arbitrary preferred that this in a to the level of strip-shaped contacts in the vertical alignment respective contact slots are clamped. This gives itself a trouble-free and reliable electrically conductive connection between the wired Components and the respective contacts.
  • the contact slots in the Tapping contacts have proven to be advantageous to be slightly tapered. This will ensures that the contact slot is limited Areas of the tapping contacts at the end of the Insertion movement of the wires of the wired components bend open so that a gentle insertion movement is achieved, the solid and reliable connection of the wire in the Contact slot of the tapping contact through the tapering shape of the contact slot is ensured.
  • the contacts in the housing of the Protective plug offers advantages if the contacts one have a heel formed by a double bend, with which they are in the housing or a housing half are supported.
  • the housing offers advantages if the housing or the Housing halves forming guide channels for this exhibit. For a reliable determination of the contacts in the housing can also in the respective guide channel at least one clamping rib may be provided.
  • the strip-shaped contacts of the invention can be particularly simple be that at least one contact is at least simply bent is, whereby the have different levels of contacts defined, between which the protective components can be arranged. In the event that the contacts are bent several times, can all bending edges of a contact according to the invention aligned parallel to each other. This makes it easier Production of those in the protective plug Tapping.
  • housing half 12 can be seen in the three levels Tapping contacts 14 for the side of the operator who Tapping contacts 16 for the line side and an earth spring 18 are included.
  • the protective plug 10 is with the pointed extension 20th in the area between the two rows of contacts Connection device introduced such that the Tapping contacts 14, 16 assigned to each other, opposite contacts of the connection device electrically contact manager.
  • FIG. 1 in front of or behind the Contacts 14, 16 further tapping contacts, so that the respective contacts on one side the two adjacent contacts of a connection device tap in such a way that through the protective plug 10 Protection of a double wire is achieved.
  • Fig. 1 the principle on which the invention is based is good to recognize that consists in the tapping contacts 14, 16 directly with the wires in the protective plug 10 recorded components are connected.
  • the following described, preferred arrangement of the individual components in the protective plug according to the invention is of this Basic ideas independent and can be in any way can be varied without the main advantages of to abandon the principle of the invention.
  • Fig. 1 are according to 1 from bottom to top Current protection in the form of a thermal resistor 22 Gas arrester 24 and a fine protection for overvoltages with steep rising edge in the form of a fine protection diode 26 or a solid-state arrester.
  • the thermal resistor 22 is with its wires 28 in a respective, in Fig. 1st not recognizable contact slot of the respective contact 14, 16 clamped electrically conductive, so that the current in attached state of the protective plug 10 necessarily runs through the thermal resistor.
  • the protective plug 10 according to the invention preferred, for each associated pair of contacts 14, 16 one Provide thermal resistor 22 so that on the terminal block the individual, opposing contacts for the incoming or outgoing wires against excessive currents can be protected. In the event that the flowing Current increased above a certain value increases due to the rising temperature in the thermal resistor 22 also the electrical resistance of the same, so that from a certain Point the flow of electricity is interrupted, and a current protection is guaranteed.
  • a three-pole surge arrester its sideways and angled trained wires or legs 30 with a contact of the the connection of a pair of contacts serving as a pair are connected.
  • the two are Lateral leg 30 of the gas discharge tube 24 with the one in FIG. 1 Contact 16 on the left and not in Fig. 1 discerning, arranged to some extent in front of or behind Contact connected.
  • the respective strip-shaped contacts have, as will be explained in more detail below, or contact slots into which the legs 30 are trapped.
  • the gas arrester 24 conducts the electrical energy over the middle legs 32 on the earth spring 18, which with a the terminal block or its carrier system trained Earth rail is in an electrically conductive connection. This will connect those to the terminal blocks Components and devices protected against overvoltages.
  • Earth spring 18 has a contact slot on which the middle Leg 32 of the gas arrester is directly electrically conductive connected.
  • the gas discharge tube 24 used as an example in the case of a Overvoltage with a steep rising edge only at triggers comparatively high voltages and with earth connects is in the illustrated embodiment Invention also a fine protection in the form of a Fine protection diode 26 or a solid-state arrester intended.
  • a fine protection component has a narrow Response tolerance, so that this also with Influencing voltage with a steep rising edge protection required.
  • each of the consecutive as shown in FIG. 1 arranged contacts 14 such a blocking diode 26th assigned.
  • the wires 34 of the blocking diode 26 are in one the contact 14 trained contact slot on the one hand and a contact slot formed in the earth rail 18 on the other hand pinched.
  • Fig. 1 is in addition to the particularly clear arrangement the protective components 22, 24, 26 the particularly simple, to recognize strip-like shape of the contacts 14, 16, 18. In particular, it is the third contact level, so to speak of the protective plug 10 forming earth spring 18 essentially striped and unbent.
  • the tapping contacts 14, 16 are only at the lower edge of the shown Half of the housing 12 by two opposite bends with one each paragraph 36 provided. The two bending edges run parallel to each other, so that the in the frame the measures required to manufacture simple can be accomplished.
  • Fig. 2 are each in plan view Contacts of the protective plug 10 shown in FIG. 1 shown. 2 on the left is the Tapping contact 14 shown, which according to the top view of Fig. 2 has a largely strip-like shape and along its longitudinal extent in the shown Embodiment with two contact slots 38 and 40 is provided.
  • the Tapping contact 14 serves the lower as shown in FIG. 2
  • Contact slot 38 the pinching of the wire 28 of the Thermal resistor 22.
  • contact slot 40 is a wire 34 of the Blocking diode 26 clamped.
  • To the contact slot 38 adjacent and in the case shown on the other longitudinal edge of the Contacts 14 are each punched, slot-like Recesses 42 formed.
  • These cuts 42 give the contact 14 an increased elasticity, so that the contact slot 38 delimiting contact leg 44 resilient can dodge.
  • the recesses 42 can also from that be formed the same edge to which the Contact slot opens so that they rebound in the same way can, and in certain applications compared to the shown embodiment a change in length of strip-shaped contact is avoided overall.
  • the contact 14 narrower in terms of its width, whereby at the upper end of the contact 14 two contact legs 44 over the narrow width of the contact 14 in this area extend so that when the wire 34 is inserted the fine protection diode 26 can also be deflected a little can.
  • Earth spring 18 is on the one hand the contact slot 48 for the middle legs 32 of the gas discharge tube 24 are formed.
  • the on the other (left) edge provided slot-like Recesses 42 correspond to those previously described recesses described with the contact 14. This applies likewise for those in the upper area of the earth spring 18 trained recesses 42, adjacent to each one Contact leg 44 is formed, which together with the the upper end of the earth spring 18 provided contact leg 44th a respective contact slot 50 for the left according to FIG. 1 Leg 34 of the blocking diode 26 limited.
  • each with its lower area on the Connection device a connection contact of the incoming or the outgoing side.
  • the two contacts 52 and 54 are above the in Fig. 1 arranged contacts 14 and 16, wherein contact 52 is level with contact 16, and contact 54 is level with contact 14.
  • the two wires 28 of another Thermal resistor 22 depressed so that the current flow necessarily done by thermal resistance, and the Components and devices connected to the protective plug 10 provided terminal block are connected against too high Currents are protected.
  • a rough protection against overvoltage offers for those of the two contacts 52, 54 tapped contacts of the Terminal block the connection of the contact 52 with the according Fig. 1 lower legs 30 of the gas discharge tube 24, which in the upper end of the contact 52 formed contact slot 46 is introduced.
  • a further blocking diode 26 with a steep rising edge which can also be designed as a solid-state arrester, and whose wires 34 in the contact slot 40 of the contact 54 and the contact slot 50 of the earth spring 18 are pressed.
  • the top view of the protective plug 10 shown in FIG. 3 results in terms of in the protective plug contacts 14, 16, 18, 52 and 54 located by the above described displacement of the two contacts 14, 16 after right and the two contacts 52, 54 to the left.
  • extends in the Final state between the contact slots 40 of the two Contacts 54 and 14 and the contact slots 50 of the earth spring 18 each has a blocking diode 26.
  • this is a leg 30 of the gas discharge tube 24 can be seen in the Contact slot 46 of the contact 16 is pressed.
  • the middle leg 32 is accordingly in the contact slot 48 of the earth spring 18 introduced.
  • the lowest according to FIG. 3 Leg 30 is in contact slot 46 of contact 52 introduced.
  • the wires of each in the Contact slots 38 of the two contacts 14 and 16 or 52 and 54 are indented.
  • FIG. 4 is a view corresponding to FIG. 1 Example of a protective plug 10 shown.
  • This Embodiment has as the only protective component Gas arrester 24, as surge protection.
  • a in Fig. 1st shown protective plug according to the invention can also as shown in Fig. 4, only one Have surge protection.
  • the top and the bottom Leg 30 of the gas discharge tube 24 is in one Contact slot of a tapping contact 16 or 52 clamped, to a certain extent as shown in FIG. 4 are arranged one behind the other.
  • the contacts 16 correspond to the respective contact slot, 52 essentially the contacts 16 shown in FIG. 2, 52.
  • In the example shown in Fig. 4 are only those formed at the ends of the tapping contacts 16, 52 Clamping slots 46 required because that shown in Fig. 4 Example has no current protection, and therefore the according 2 in the course of the strip-shaped contact 16, 52 provided clamping slot 38 is not required.
  • Fig. 4 it is indicated how the Tapping contacts 16, 52 in the separation area of the contacts one Terminal strip 56 drawn with dash-dotted lines extend.
  • the corresponding tapping contacts one Protective plug according to the invention extend to similar Way in the separation area of the contacts of such Terminal block 56.
  • the tapping contacts 16, 52 attack the voltage applied to the contacts of the terminal block 56, so that this is also present on the surge arrester 24. If a certain maximum voltage is exceeded, conducts the gas arrester 24 over the electrical energy middle leg 32 on the earth spring 18, whose corresponding clamping slot is designed approximately as this is shown in Fig. 2 for the earth spring 18.
  • the lower region of the earth spring 18 is required turned and with this area in one in FIG. 4th indicated earth rail 58 inserted.
  • This earth rail 58 is in the case shown with several holes or Provide recesses in the lower sections of the plurality of protective plugs 10 are inserted and electrically Conductively connected to the earth rail 58.
  • the protective plug 10 be designed to protect multiple pairs.
  • ribs 60 on the parallel to the plane of the drawing extending inner surface of the housing half shown trained, which are preferably assigned to one another in pairs are, so that between two ribs 60 each Guide channel is defined in which the respective contact 16, 18 or 52 added and defined in terms of its location is.
  • Such ribs can also be used in an inventive Protective plugs are used, but are not shown in FIG. 1 shown.
  • the housing In the case of the two tapping contacts 16, 52 the housing finally at the upper end 62 of the two contacts recessed such that the upper ends of the contacts 16, 52 are freely accessible from outside. This serves to place a test probe at each of these points.
  • the ribs 60 of course the places where they the legs 30, 32 of Cross gas arrester 24, are cut out in a suitable manner, so that the legs 30, 32 with the required depth in the clamping slots of the respective contacts are pressed in can.
  • FIG. 5 is yet another example of one Protective plug 10 shown that the example of FIG. 4th is similar.
  • the main difference from that Embodiment of Fig. 4 is that not Tapping contacts 16, 52 are angled in their course, but the earth spring 18.
  • the two tapping contacts 16, 52 are similar to the tapping contacts shown in Fig. 2 designed, but do not show the course trained clamping slots 38 and are not angled. Since the earth spring 18 the middle leg 32 of the Gas arrester 24 contacted at a point on the side on which the tapping contacts 16, 52 are also located, this must be angled in the example of FIG. 5 be one for several of the protective plugs 10 shown provided earth rail 58 at a suitable location to contact.
  • the tapping contacts 16, 52 in an inventive Protective plug straight and / or the earth spring angled be trained.
  • the earth spring 18 not broadened at the lower end by flipping be like this with the previously described Embodiments is the case, but essentially by Forming a slot in the end portion and then bending the two apart at the slot adjacent areas in opposite directions. This will cause a certain spring tension standing electrically conductive contacting of the earth rail 58 reached.
  • FIG. 5 there is also the form of a bracket 64 to detect the intended fail-safe device that is intended for the In the event that an overvoltage is present for a long time, for one permanent connection between the concerned Tapping contact 16, 52 and the earth spring 18 and thus for the Derivation of the electrical energy via the earth rail 58 Earth cares.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Structure Of Telephone Exchanges (AREA)
EP99920672A 1998-04-16 1999-04-14 Schutzstecker für eine einrichtung der telekommunikationstechnik Expired - Lifetime EP0990280B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19816907A DE19816907B4 (de) 1998-04-16 1998-04-16 Schutzstecker für eine Einrichtung der Telekommunikationstechnik
DE19816907 1998-04-16
PCT/EP1999/002526 WO1999054965A1 (de) 1998-04-16 1999-04-14 Schutzstecker für eine einrichtung der telekummunikationstechnik

Publications (2)

Publication Number Publication Date
EP0990280A1 EP0990280A1 (de) 2000-04-05
EP0990280B1 true EP0990280B1 (de) 2002-12-11

Family

ID=7864736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99920672A Expired - Lifetime EP0990280B1 (de) 1998-04-16 1999-04-14 Schutzstecker für eine einrichtung der telekommunikationstechnik

Country Status (8)

Country Link
EP (1) EP0990280B1 (xx)
AU (1) AU748833C (xx)
DE (1) DE19816907B4 (xx)
ES (1) ES2186356T3 (xx)
PL (1) PL193625B1 (xx)
RU (1) RU2216080C2 (xx)
WO (1) WO1999054965A1 (xx)
ZA (1) ZA997681B (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20002378U1 (de) 2000-02-11 2000-04-27 Quante Ag, 42109 Wuppertal Schutzmodul der Telekommunikationstechnik
DE10208698B4 (de) * 2002-02-28 2004-03-04 Dehn + Söhne Gmbh + Co. Kg Überspannungsschutz-Modul, Überspannungsschutz-Anordnung, insbesondere für Telekommunikations-Einrichtungen, sowie Erdungsanordnung für die Trennleiste der Überspannungs-Schutzanordnung
DE102004061681B4 (de) 2004-12-22 2006-10-26 Adc Gmbh Kabelsteckverbinder für Leiterplatten
DE602005008737D1 (de) 2005-08-05 2008-09-18 3M Innovative Properties Co Überspannungsschutzmodul und Zusammenbau von mindestens einem Telekommunikationsmodul und mindestens einem Überspannungsschutzmodul
DE102005042163B3 (de) 2005-09-06 2007-03-22 Adc Gmbh Schutzstecker für ein Anschlussmodul
DE102007042358B3 (de) * 2007-09-06 2008-11-20 Epcos Ag Elektrische Schutzvorrichtung
DE102008046653B4 (de) * 2008-09-10 2017-05-18 Wago Verwaltungsgesellschaft Mbh Bauelementestecker

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113340A (en) * 1977-06-27 1978-09-12 Illinois Tool Works Inc. Protective electrical device
DE3113759C2 (de) * 1981-04-04 1985-05-02 Krone Gmbh, 1000 Berlin Überspannungsableitervorrichtung für Trennleisten
FR2600465B1 (fr) * 1986-06-18 1993-09-03 Citel Cie Indle Tubes Lampes E Element de protection contre les surtensions sur les lignes telephoniques ou les lignes de transmission d'informations ou analogues
DE3813889C1 (xx) * 1988-04-20 1989-04-06 Krone Ag, 1000 Berlin, De
DE3909783C2 (de) * 1989-03-22 1996-06-13 Krone Ag Schutzstecker für Anschlußleisten der Fernmelde- und Datentechnik
DE3921225C1 (en) * 1989-06-28 1990-07-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De Protective device for distributor in telecommunications system - has over-voltage arrester with wire-type terminal pins, e.g. for telephone exchange
DE59003940D1 (de) * 1989-06-28 1994-02-03 Siemens Ag Schutzstecker für eine Verteilerleiste in einer Telekommunikationsanlage.
FR2659504B1 (fr) * 1990-03-09 1994-07-08 Sofycom Receptacle de securite pour parafoudre de protection de ligne telephonique.
DE4026004A1 (de) * 1990-08-14 1992-02-20 Krone Ag Schutzschaltung und schutzstecker in telekommunikationsanlagen
DE9101599U1 (de) * 1991-02-12 1991-05-02 Siemens AG, 8000 München Schutzstecker für ein Kontaktbauteil in einem Verteiler einer Telekommunikationsanlage
US5359657A (en) * 1992-06-08 1994-10-25 Oneac Corporation Telephone line overvoltage protection apparatus

Also Published As

Publication number Publication date
ES2186356T3 (es) 2003-05-01
WO1999054965A1 (de) 1999-10-28
DE19816907B4 (de) 2006-09-28
PL337439A1 (en) 2000-08-14
RU2216080C2 (ru) 2003-11-10
ZA997681B (en) 2001-01-04
AU3816799A (en) 1999-11-08
DE19816907A1 (de) 1999-10-28
EP0990280A1 (de) 2000-04-05
AU748833C (en) 2003-01-09
PL193625B1 (pl) 2007-02-28
AU748833B2 (en) 2002-06-13

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