EP1852945B1 - Electrical connector - Google Patents

Abstract

The connector has a compensation device that is provided at a position of an electrical conducting path between the conductors (1a, 1b, 2a, 2b) of two subscribers. A circuit is provided as a compensation stage between the conductors having same polarities and includes a series connection of a resistor (R11), capacitor (C11) and inductor (L11). Another circuit is provided as another compensation stage between the conductors of different polarities and includes a resistor (R12) and a capacitor (C12).

Description

The invention relates to an electrical connector according to the preamble of claim 1 and 7, respectively.

From the EP 0 901 201 B1 For example, an electrical connector for a plurality of users is known, wherein the connector comprises two electrical conductors per subscriber, which form an electrical conduction path between input terminals and output terminals of the connector. Between the conductors of different participants, an undesirable crosstalk can occur, which after the EP 0 901 201 B1 can be compensated by a two-stage compensation device. Thus, according to this state of the art, a first compensation stage is arranged at a first effective position of the electrical conduction path and a second compensation stage at a second effective position of the electrical conduction path, a distance between the first effective position of the first compensation stage and the second effective position of the second Compensation stage is determined such that caused by the distance between the two effective positions delay differences provide a time delay to provide certain phase shifts for a given frequency for cross-talk compensation.

The document WO 2005/101579 discloses an electrical connector according to the preamble of claim 1 or 7.

The present invention is based on the problem to provide an electrical connector with a novel compensation for crosstalk.

This problem is solved according to a first aspect of the present invention by a connector according to claim 1.

Thereafter, at an effective position of the electrical conduction path between conductors of two participants, a multi-stage compensation device is connected such that at the same effective position of the conduction path between at least two conductors of different participants with the same polarity as the first compensation stage, a circuit comprising at least one series circuit of a resistor, a Capacitance and an inductance and between at least two conductors of the same different participants with different polarity as a second compensation stage, a circuit comprising at least one series circuit of a resistor and a capacitor is connected.

According to a second aspect of the present invention, the problem is solved by a connector according to claim 7.

Hereinafter, at an effective position of the electrical conduction path between conductors of two participants, a multi-stage compensation device is connected such that at the same effective position of the conduction path between at least two immediately adjacent conductors of different participants as a first compensation stage, a circuit comprising at least one series circuit of a resistor, a capacitance and an inductance and between at least two spaced conductors of the same different participants, between which at least one further conductor is arranged, is connected as a second compensation stage, a circuit comprising at least one series circuit of a resistor and a capacitor.

In both the first aspect and the second aspect of the present invention, two compensation stages are switched at the same effective position of the conduction path between conductors of different subscribers so as to provide the compensation of crosstalk.

According to the present invention, delays in the signal transmission are therefore exploited by charging times and discharge times due to the series connection of resistors, capacitors and inductors of the compensation stages in order to accomplish the compensation of near-end crosstalk in particular.

According to an advantageous development of the first aspect or of the second aspect of the present invention, the two conductors of one of the two participants are crossed and so on after or before the effective position of the line path at which the multi-stage compensation device is connected between the conductors of two participants the conductors of the other participant led that along the conduction path in each case the conductors of different polarity of the two participants form a discrete, inductive conductor loop. In this way, in particular the compensation of far-end crosstalk can be accomplished.

Fig. 1:

eine schematisierte Darstellung des elektrischen Leitungswegs eines erfindungsgemäßen Steckverbinders nach einem ersten Ausführungsbeispiel der Erfindung;

Fig. 2:

eine schematisierte Darstellung des elektrischen Leitungswegs eines erfindungsgemäßen Steckverbinders nach einem zweiten Ausführungsbeispiel der Erfindung; und

Fig. 3:

eine schematisierte Darstellung des elektrischen Leitungswegs eines erfindungsgemäßen Steckverbinders nach einem dritten Ausführungsbeispiel der Erfindung.

Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawing. In the drawing shows:

Fig. 1:

a schematic representation of the electrical conduction path of a connector according to the invention according to a first embodiment of the invention;

Fig. 2:

a schematic representation of the electrical conduction path of a connector according to the invention according to a second embodiment of the invention; and

3:

a schematic representation of the electrical conduction path of a connector according to the invention according to a third embodiment of the invention.

Fig. 1 shows a highly schematic representation of an electrical conduction path of an electrical connector according to the invention, wherein the connector is designed for two participants, and wherein each subscriber two electrical conductors 1 a, 1 b and 2 a, 2 b are present. The conductors 1 a and 1 b are also referred to below as a conductor of a disturbing participant and the conductors 2 a and 2 b as the conductor of a disturbed participant. The conductors 1a, 1b, 2a and 2b of the two participants form the electrical conduction path between non-illustrated input terminals and also not shown output terminals of the connector.

The connector is preferably a modular data jack for a symmetrical data cabling, such. B. to an RJ 45 data socket, wherein the two conductors 1a, 1b and 2a, 2b of each participant are formed as unbalanced line pairs. An undesirable crosstalk, in particular a so-called near-end crosstalk, which can be compensated, can occur between the conductors of the different users.

To compensate for crosstalk, in particular near-end crosstalk, is in the in Fig. 1 illustrated embodiment at an effective position 10 of the defined by the conductors 1 a, 1 b, 2 a and 2 b electrical conduction path a multi-level, namely two-stage, compensation device connected between the conductor of the two participants.

Thus, at the effective position 10 of the conduction path between the conductor 2b of the disturbed participant and the conductor 1b of the interfering participant, which has the same polarity as the conductor 2b of the disturbed participant, as the first compensation stage 11 is a series circuit of a resistor R ₁₁ , a Capacitance C ₁₁ and an inductance L ₁₁ connected. The conductor 1b of the interfering participant is the conductor immediately adjacent to the conductor 2b of the disturbed participant.

In addition, between the conductor 2b of the disturbed participant and the conductor 1a of the interfering participant, which has a different polarity as the conductor 2b of the disturbed participant, connected to the same effective position of the conduction path, a second compensation stage 12, which is a series circuit of a resistor R ₁₂ and a capacity C ₁₂ includes. The conductor 1 a of the disturbing participant and the conductor 2b of the disturbed participant are two spaced conductors of different participants, between which a further conductor is arranged, namely the conductor 2a of the disturbed participant.

Such a multi-stage compensation device, in which only one of the two conductors 1 a, 1 b of the interfering participant one of the two compensation stages is connected between a single conductor 2 b of the disturbed subscriber, is also referred to as asymmetric, multi-stage compensation device.

For the purposes of the present invention, it is also possible to switch at an effective position of the conduction path between the conductors of the two participants a symmetrical, multi-stage compensation device, as in Fig. 2 is shown.

According to Fig. 2 is at the effective position 10 of the conduction path between a first conductor 2b of the disturbed participant and the conductor 1b of the interfering participant, which has the same polarity as the first conductor 2b, as the first compensation stage 11, a series connection of a resistor R _{11 of} a capacitance C _11th and an inductance L ₁₁ connected, and between these first conductor 2b of the disturbed subscriber and the conductor 1 a of the interfering subscriber, which has a different polarity as the first conductor 2b, a second compensation stage 12 is connected, the at least one series circuit of a resistor R ₁₂ and a capacity C ₁₂ includes.

At the same effective position 10 is further connected between a second conductor 2a of the disturbed participant and the conductor 1a of the interfering participant, which has the same polarity as the second conductor 2a of the disturbed participant, a first compensation stage 13, which in turn at least one series circuit of a Resistor R ₁₃ , a capacitor C ₁₃ and an inductance L ₁₃ includes.

Furthermore, a second compensation stage 14 is connected between this second conductor 2a of the disturbed participant and the conductor 1b of the interfering participant, which has a different polarity than the second conductor 2a of the disturbed participant, which in turn at least one series circuit of a resistor R ₁₄ and a Capacity C ₁₄ includes.

Preferably, in the symmetrical compensation device according to Fig. 2 the resistors R ₁₁ , R ₁₃ and the capacitors C ₁₁ , C ₁₃ and inductors L ₁₁ , L _{13 of} the first two compensation stages 11 and 13 and the resistors R ₁₂ , R ₁₄ and the capacitors C ₁₂ , C _{14 of} the two second compensation stages 12th and 14 dimensioned approximately identically.

Fig. 1 and 2 can be seen that, starting from a conductor 2b or 2a of a disturbed participant who is coupled via a respective compensation level with the conductors 1a and 1b of the interfering participant, in the first compensation stage 11 and 13, the respective resistor R ₁₁ and R, respectively ₁₃ at the conductor 2b and 2a of the disturbed participant attacks, and that the resistor R ₁₁ and R _{13 of} the first compensation stage 11 and 13 with the interposition of the corresponding capacitance C ₁₁ and C ₁₃ and inductance L ₁₁ and L ₁₃ to the immediately adjacent conductors 1b and 1a of the interfering subscriber is connected with the same polarity. The arrangement of the components in the first compensation stage 11 and 13, however, is arbitrary and can therefore also be reversed.

In the respective second compensation stage 12 or 14, via which a conductor 2 b or 2 a of the disturbed participant is coupled to the conductor 1 a or 1 b of the interfering participant having a different polarity, the capacitance C ₁₂ or C ₁₄ intervenes Head 2b or 2a of the disturbed participant and the resistor R ₁₂ or R _{14 to} the conductor 1a and 1b of the interfering participant. Also in the second compensation stage 12 and 14, the arrangement of the components is arbitrary, so that the arrangement of the components can be reversed.

To the components of the RCL series circuits of the first compensation stages 11 and 13 further capacitances and / or inductances can be connected in parallel. Thus, it is possible to connect an additional capacitance in parallel to the inductors L ₁₁ and L _{13 of} the first compensation stages 11 and 13, respectively. Also, to the complete RCL series circuit of the first compensation stages 11 and 13, at least one capacitor and optionally in series with this capacitance, a resistor and / or an inductance are connected in parallel. As a result, in particular the frequency characteristic of the compensation can be advantageously set.

The compensation circuits of the Fig. 1, 2 A common connector is that all compensation stages at an effective position along the electrical conduction path of the conductors 1 a, 1 b, 2 a and 2 b of the two participants attack.

Delays in the signal transmission caused by charge times and discharge times of the components of the compensation stages can be used to compensate for crosstalk.

It should be noted that the compensation devices according to Fig. 1 and 2 especially suitable for compensation of so-called near-end crosstalk.

The dimensioning of the components of the compensation stages is incumbent on the person skilled in the art referred to here. It should be noted at this point that the inductances L ₁₁ and L _{13 of} the first compensation stages 11 and 13 are preferably between 50 and 150 nH. The resistors R ₁₁ and R _{13 of} the first compensation stages 11 and 13 are preferably dimensioned between 500 and 2000 ohms, the resistors R ₁₂ and R _{14 of} the second compensation stages 12 and 14, however, are significantly smaller, preferably between 0.1 and 100 ohms. The capacitances C ₁₁ , C ₁₂ , C ₁₃ and C _{14 of} the compensation stages are preferably between 0.1 and 5 pF, wherein the capacitances C ₁₂ and C _{14 of} the second compensation stages 12 and 14 are preferably dimensioned larger than the capacitances C ₁₁ and C _{13 of} the first compensation stages 11 and 13. However, this possible dimensioning of the components is purely exemplary.

The components of the compensation stages are to be dimensioned such that the amount of the vector sum of the disturbing signal and the compensating signals of the two compensation stages for each disturbed subscriber is approximately zero. The compensation stages of the above compensation devices are primarily suitable for near-end crosstalk compensation.

According to an advantageous development of the present invention are after or even before the effective position 10 of the line path, at which according to Fig. 1 or 2 a multi-stage compensation device is connected between the conductors of two participants, the two conductors 2 a and 2 b of the disturbed participant crossed and guided to the conductors 1 a and 1 b of the interfering participant that the conductors 1a and 2b and the conductors 2a and 1 b of the different participants with different polarity form a discrete, inductive conductor loop. It is also possible to cross the two conductors 1 a and 1 b of the interfering participant and to lead to the conductors 2 a and 2 b of the disturbed participant that the conductors 1 a and 2 b and the conductors 2 a and 1 b of the different participants with different Polarity form a discrete inductive conductor loop.

The discrete inductive conductor loop is created by maximizing the spacing of the mutually compensating conductors 1a and 2b or 2a and 1b spatially at a distance and minimizing the corresponding length along the conduction path. By means of this discrete, inductive conductor loop, in particular so-called far-end crosstalk can be better compensated.

LIST OF REFERENCE NUMBERS

1a

Head of a disturbing participant

1 b

Head of a disturbing participant

2a

Head of a disturbed participant

2 B

Head of a disturbed participant

10

Position in the cable path of the ladder

11

first compensation stage

12

second compensation stage

13

first compensation stage

14

second compensation stage

15

intersection

R ₁₁

Resistance of the first compensation stage 11

C ₁₁

Capacity of the first compensation stage 11

L ₁₁

Inductance of the first compensation stage 11

R ₁₂

Resistance of the second compensation stage 12

C ₁₂

Capacity of the second compensation stage 12

R ₁₃

Resistance of the first compensation stage 13

C ₁₃

Capacity of the first compensation stage 13

L ₁₃

Inductance of the first compensation stage 13

R ₁₄

Resistance of the second compensation stage 14

C ₁₄

Capacity of the second compensation stage 14

Claims (12)

1. Electrical plug-type connector for a plurality of subscribers, with two electrical conductors per subscriber, the conductors forming an electrical line path between input terminals and output terminals of the plug-type connector, and with a multi-stage compensation device for compensating for crosstalk between the conductors of different subscribers, characterized in that, at one position (10) of the electrical line path, a multi-stage compensation device is connected between conductors of two subscribers in such a way that, at the same position of the line path, a circuit comprising at least one series circuit comprising a resistance (R₁₁), a capacitance (C₁₁) and an inductance (L₁₁) is connected between at least two conductors (1a, 2a; 1b, 2b) with the same polarity, as a first compensation stage (11), and a circuit comprising at least one series circuit comprising a resistance (R₁₂) and a capacitance (C₁₂) is connected between at least two conductors (1a, 2b; 1b, 2a) with a different polarity, as a second compensation stage (12).
2. Plug-type connector according to Claim 1, characterized in that, at one position of the line path, an asymmetrical multi-stage compensation device is connected between the conductors of two subscribers in such a way that, at the same position of the line path, on the one hand a circuit comprising at least one series circuit comprising a resistance (R₁₁), a capacitance (C₁₁) and an inductance (L₁₁) is connected between a single conductor (2b) of a first subscriber and the conductor (1b) of a second subscriber with the same polarity, as the first compensation stage (11), and on the other hand a circuit comprising at least one series circuit comprising a resistance (R₁₂) and a capacitance (C₁₂) is connected between this conductor (2b) of the first subscriber and the conductor (1a) of the second subscriber with a different polarity, as the second compensation stage (12).
3. Plug-type connector according to Claim 1, characterized in that, at one position of the line path, a symmetrical multi-stage compensation device is connected between the conductors of two subscribers in such a way that, at the same position of the line path, a circuit comprising at least one series circuit comprising a resistance (R₁₁), a capacitance (C₁₁) and an inductance (L₁₁) is connected between a first conductor (2b) of a first subscriber and the conductor (1b) of a second subscriber with the same polarity, as the first compensation stage (11), and a circuit comprising at least one series circuit comprising a resistance (R₁₂) and a capacitance (C₁₂) is connected between this first conductor (2b) of the first subscriber and the conductor (1a) of the second subscriber with a different polarity, as the second compensation stage (12), and in that in turn a circuit comprising at least one series circuit comprising a resistance (R₁₃), a capacitance (C₁₃) and an inductance (L₁₃) is connected between a second conductor (2a) of the first subscriber and the conductor (1a) of the second subscriber with the same polarity, as a first compensation stage (13), and in turn a circuit comprising at least one series circuit comprising a resistance (R₁₄) and a capacitance (C₁₄) is connected between this second conductor (2a) of the first subscriber and the conductor (1b) of the second subscriber with a different polarity, as a second compensation stage (14).
4. Plug-type connector according to Claim 3, characterized in that the resistances (R₁₁, R₁₃) and capacitances (C₁₁, C₁₃) and inductances (L₁₁, L₁₃) of the two first compensation stages (11; 13) and the resistances (R₁₂, R₁₄) and capacitances (C₁₂, C₁₄) of the two second compensation stages (12; 14) of a symmetrical compensation device are dimensioned or designed so as to be approximately identical.
5. Plug-type connector according to one or more of Claims 1 to 4, characterized in that at least one additional capacitance and/or at least one additional inductance is connected in parallel with the components of a first compensation stage (11; 13).
6. Plug-type connector according to one or more of Claims 1 to 5, characterized in that, downstream of or upstream of the position of the line path at which the multi-stage compensation device is connected between the conductors (1a, 1b, 2a, 2b) of two subscribers, the two conductors (2a, 2b) of one of the two subscribers cross over one another and are routed to the conductors (1a, 1b) of the other subscriber in such a way that, along the line path, in each case the conductors (1a, 2b; 2a, 1b) with a different polarity of the two subscribers form a discrete, inductive conductor loop.
7. Electrical plug-type connector for a plurality of subscribers, with two electrical conductors per subscriber, the conductors forming an electrical line path between input terminals and output terminals of the plug-type connector, and with a multi-stage compensation device for compensating for crosstalk between the conductors of different subscribers, characterized in that, at one position (10) of the electrical line path, a multi-stage compensation device is connected between conductors of two subscribers in such a way that, at the same position of the line path, a circuit comprising at least one series circuit comprising a resistance (R₁₁), a capacitance (C₁₁) and an inductance (L₁₁) is connected between at least two directly adjacent conductors (1a, 2a; 1b, 2b) of different subscribers, as a first compensation stage (11), and a circuit comprising at least one series circuit comprising a resistance (R₁₂) and a capacitance (C₁₂) is connected between at least two spaced-apart conductors (1a, 2b; 1b, 2a) of different subscribers, between which a further conductor is arranged, as a second compensation stage (12).
8. Plug-type connector according to Claim 7, characterized in that, at one position of the line path, an asymmetrical multi-stage compensation device is connected between the conductors of two subscribers in such a way that, at the same position of the line path, on the one hand a circuit comprising at least one series circuit comprising a resistance (R₁₁), a capacitance (C₁₁) and an inductance (L₁₁) is connected between a single conductor (2b) of a first subscriber and the directly adjacent conductor (1b) of a second subscriber, as the first compensation stage (11), and on the other hand a circuit comprising at least one series circuit comprising a resistance (R₁₂) and a capacitance (C₁₂) is connected between this conductor (2b) of the first subscriber and the spaced-apart conductor (1a) of the second subscriber, as the second compensation stage (12).
9. Plug-type connector according to Claim 7, characterized in that, at one position of the line path, a symmetrical multi-stage compensation device is connected between the conductors of two subscribers in such a way that, at the same position of the line path, a circuit comprising at least one series circuit comprising a resistance (R₁₁), a capacitance (C₁₁) and an inductance (L₁₁) is connected between a first conductor (2b) of a first subscriber and the directly adjacent conductor (1b) of a second subscriber, as the first compensation stage (11), and a circuit comprising at least one series circuit comprising a resistance (R₁₂) and a capacitance (C₁₂) is connected between this first conductor (2b) of the first subscriber and the spaced-apart conductor (1a) of the second subscriber, as the second compensation stage (12), and in that in turn a circuit comprising at least one series circuit comprising a resistance (R₁₃), a capacitance (C₁₃) and an inductance (L₁₃) is connected between a second conductor (2a) of the first subscriber and the directly adjacent conductor (1a) of the second subscriber, as the first compensation stage (13), and in turn a circuit comprising at least one series circuit comprising a resistance (R₁₄) and a capacitance (C₁₄) is connected between this second conductor (2a) of the first subscriber and the spaced-apart conductor (1b) of the second subscriber, as a second compensation stage (14).
10. Plug-type connector according to Claim 9, characterized in that the resistances (R₁₁, R₁₃) and capacitances (C₁₁, C₁₃) and inductances (L₁₁, L₁₃) of the two first compensation stages (11; 13) and the resistances (R₁₂, R₁₄) and capacitances (C₁₂, C₁₄) of the two second compensation stages (12; 14) of a symmetrical compensation device are dimensioned or designed so as to be approximately identical.
11. Plug-type connector according to one or more of Claims 7 to 10, characterized in that at least one additional capacitance and/or at least one additional inductance is connected in parallel with the components of a first compensation stage (11; 13).
12. Plug-type connector according to one or more of Claims 7 to 11, characterized in that, downstream of or upstream of the position of the line path at which the multi-stage compensation device is connected between the conductors (1a, 1b, 2a, 2b) of two subscribers, the two conductors (2a, 2b) of one of the two subscribers cross over one another and are routed to the conductors (1a, 1b) of the other subscriber in such a way that, along the line path, in each case the conductors (1a, 2b; 2a, 1b) with a different polarity of the two subscribers form a discrete, inductive conductor loop.

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