EP0835592A1

EP0835592A1 - Main distribution board for a telecommunications facility

Info

Publication number: EP0835592A1
Application number: EP96920705A
Authority: EP
Inventors: Dieter Kunze
Original assignee: Siemens AG
Current assignee: ADC GmbH
Priority date: 1995-06-29
Filing date: 1996-06-26
Publication date: 1998-04-15
Also published as: ZA965410B; WO1997001938A1; AU6187796A

Abstract

Contact components (2) of a main distribution board (1) are each provided with connection elements (4) for internal lines (8) leading to relay devices and with connection elements (5) for external lines (9) leading to subscribers (e.g. 20). The connection elements (4, 5) are connected to one another via disconnect contacts (3). The connection elements are each provided with two connection points (7) to which can be connected, in addition to the internal lines (8) and external lines (9), jumper lines (8) which can be laid between contact components (2) assigned to different subscribers. Interruption of the appropriate disconnect contact (3) prevents direct contact between these subscribers. Separate contact components for the internal lines (8) and external lines (9) can now be dispensed with, thereby considerably reducing the number of contact components (2).

Description

description

Main distributor for a telecommunications system

The invention relates to a main distributor for a telecommunications system with a multiplicity of contact components for external lines leading to subscribers and for internal lines leading to switching devices, the external lines and the internal lines being connected to connection elements of the contact components, the contact components having isolating contacts, each are arranged between two associated connection elements and are used to interrupt the line connection by means of isolating plugs, the connection elements each being provided with two connection points for two line conductors, with jumper lines being able to be laid between the connection elements of the different contact components in order to change the line routing and where the connecting elements for the inner lines serve as inner connecting elements and the connecting element for the outer lines serve as outer connecting elements.

Such a main distributor is known, for example, from WO 91/15086. Thereafter, separate contact components are provided for the inner lines and the outer lines, which are combined in spatially separate areas. The contact components for the inner lines are connected to the contact components for the outer lines via jumper lines. The contact components are provided with connecting elements for the incoming and outgoing lines, which are connected to one another via an isolating contact. The isolating contact has two resiliently adjacent contact springs, each of which is connected to one of the connection elements. If a isolating plug is pushed between the two contact springs, the isolating contact is opened. If the connection paths between the inner lines and the outer lines are to be changed, the jumper lines must be removed and relocated accordingly. In modern electronic switching systems, it is possible to carry out a large part of the long-term switching by means of a position-to-phone number conversion, as a result of which 5 corresponding wiring work on the main distributor is not necessary.

The object of the invention is to create a distributor, which can be produced with less effort and which requires less wiring, while adhering to the prescribed principles of organization.

This object is achieved by the invention according to claim 1.

15 Since a large part of the inner lines and the outer lines are now connected to one and the same contact component and directly connected via the isolating contacts, a large part of the wiring effort for the marshalling wiring is omitted during initial removal. In the relatively rare special cases

20 len in which this direct connection is not possible for certain reasons, the direct connection path can be interrupted using the isolating plug. The two connection points of the connection elements are, for example, in the case of the conventional double insulation displacement terminals, without any particular additional expenditure

25. already exists. This makes it possible to additionally connect the marshalling lines to the connection elements even if one of the connection points is already occupied. A subscriber can thus be re-routed to an internal line that is not directly assigned to him without additional

30 construction measures have to be performed. With such a distributor, not only is a large part of the jumper cables omitted, but also a large part of the contact components, so that the manufacturing and assembly work is considerably reduced.

35

According to an advantageous development of the invention, a subset of the internal connection elements remains from the internal lines. and the patch cords are laid between the internal connection elements. This means that there are always free internal connection elements to which the shunting lines can be connected.

In another development of the invention according to claim 3, it is e.g. It is possible to provide different subscribers with an ISDN connection without the need for special distribution devices. The subscriber disconnected from the normal switching devices by means of a disconnect plug is connected to the additional contact components to which the corresponding special services are connected by means of a special line connected to the associated external connection element. The additional contact components can be of the same size and nature as the other contact components, so that they can easily be accommodated together with them in one and the same supporting frame.

The invention is explained in more detail below with reference to an embodiment shown in the drawing.

FIG. 1 shows schematically two stackable contact components of a main distributor with connected inner and outer lines,

Figure 2 schematically shows a main distributor with several stacked contact components according to Figure

1, FIG. 3 schematically shows a cross section through the contact components according to FIG. 2

According to FIG. 1, contact components 2 of a main distributor 1 (FIG. 2) are provided with a row of 10 isolating contacts 3, on the two sides of which connection elements 4, 5 are designed for incoming and outgoing lines. The isolating contacts 3 are connected to the connection elements 4, 5 and can be disconnected by means of isolating plug 6 inserted in between, as a result of which the connections connection between the incoming and outgoing lines is interrupted. The connection elements 4, 5 each have two connection points 7 for connecting two line wires.

The incoming and outgoing lines of the upper contact component 2 are here as inner lines 8 and outer lines

9 trained. The connecting elements 4, 5 are accordingly designed as inner connecting elements 4 and outer connecting elements 5. The outer lines 9 lead to the subscribers 20-29. The inner lines 8 lead to a e.g. Electromechanical switching system 15. The outer lines 9 are connected to the cables in accordance with the cables.

In the lower contact component 2, the inner lines 8a lead from the inner connection elements 4 to an ISDN device 12, which e.g. provides an ISDN connection. No external lines are connected to the external connection elements 5.

The upper contact component 2 contains 10 isolating contacts with the associated connection elements 4, 5 on the 8 inner lines and

10 external lines are connected. In a large part of the cases, the inner lines 8 and the outer lines 9 are directly and suitably connected to one another via the isolating contacts 3, since according to current statistics, approximately 90% of all subscribers are connected with simple telephone service. The cable network generally contains more lines than there are device connections in the office. It therefore happens with the type of wiring according to the invention that a subscriber (e.g. 22) only has to be routed to an outside line, while other external lines 9 (e.g. at 20, 23) do not receive a telephone connection.

At subscriber 24, the originally assigned external line 9 is interrupted, for example by wire break. This subscriber is therefore connected to the outside line, which originally was provided for the participant 20. A shunting line 10 is led from the associated inner connection element 4 to one of the connection points 7 of the inner connection element 4 for the subscriber 24 and is thus connected to the associated inner line 8. The isolating contact 3 assigned to the subscriber 24 is interrupted by the isolating plug 6.

The subscriber 26 receives e.g. an ISDN connection. In addition to the external line, a routing line serving as a special line 11 is connected to the external connection element 5 for the subscriber 26 and leads to the lower contact component 2, which is connected to the ISDN device 12 via an additional internal line 8a, which e.g. provides an ISDN connection. The telephone connection (at 26) which is freed up and separated with a disconnect plug 6 can thus be routed to the subscriber 21 via one of the marshalling lines 10.

Are at the distributor e.g. The transmission ratio is 20% more outer lines than inner lines connected

1.2. In this case, with a telephone supply of 90% jumper lines, only 30% of the subscribers have to be installed. For 70%, there is a direct connection without any further measures.

According to FIG. 2, a plurality of contact components 2 of a main distributor 1 are stacked one on top of the other. The inner lines 8, 8a are combined in inner cables 14, 14a and connected in sequence to the individual contact components 2, 8 of the inner lines each forming an inner cable 14, 14a and being connected to one of the contact components 2. In each case 10 of the outer lines 9 are combined in an outer cable 13 and connected to one of the contact components 2.

In one of the contact components, the inner lines 8 are replaced by the shunting lines 10, which lead to free inner connection elements 4 of the other contact components and there are connected to the free inner lines 8 of the inner cable. In this way it is possible to increase the number of outer lines in relation to the number of inner lines.

The inner lines 8a leading to the ISDN device 12 (FIG. 1), which are combined in the inner cable 14a, are connected to the lower contact component. The special lines 11 are connected to the associated external connection elements 5 and lead to the external connection elements 5 of the other contact components.

According to FIG. 3, the connection elements 4, 5 are extended to the rear side of the contact components 2 opposite the operating side. The two connection points 7 (FIG. 1) are thus distributed over the two sides of the contact components 2. This makes it possible to connect the inner cables 13 and the outer cables 14 on the rear side opposite the operating side to the connecting elements 4, 5 of the contact components 2 when the main distributor is first set up. These connections are largely inaccessible later and remain unchanged.

The other connection points 7 (FIG. 1) are located on the easily accessible operating side of the contact components 2 and, if necessary, are connected to the shunting lines 10 or special lines 11. Wiring lanes 16 are formed between the rows of connecting elements 4, 5, in which the routing lines 10 or special lines 11 are laid from the connecting elements 4, 5 to the narrow end faces of the contact components 2.

The isolating contacts 3 are formed by mutually braced contact springs 17 which are integrally connected to the connecting elements 2. By inserting the isolating plug 6 from the front, the contact springs 17 are pressed apart and the isolating contacts 3 are interrupted.

Claims

claims

1. Main distributor (1) for a telecommunications system with a large number of contact components (2) for external lines (9) leading to subscribers (20-29) and for

Internal lines (8) carrying switching devices, the outer lines (9) and the inner lines (8) being connected to connection elements (4, 5) of the contact components (2), the contact components (2) having isolating contacts, each between two associated connection elements ( 4, 5) are arranged and are used to interrupt the line connection by means of isolating plugs (6), the connection elements (4, 5) being provided with two connecting parts (7) each for two line wires, with jumper lines (10) between to change the line routing the connection elements (4, 5) of the various contact components (2) can be laid and the connection elements for the inner lines (8) serve as inner connection elements (4) and the connection elements for the outer lines (9) serve as outer connection elements (5), characterized in that in the case of the individual contact components (2), the inner connection elements (4) and the outer connection elements (5) j Both sides of the isolating contacts (3) are arranged in such a way that the marshalling lines (10 or 11, for example) are laid between two inner connection elements (4) or between two outer connection elements (5) of the contact components (2), so that the two connection points (7 ) of the connecting elements (4, 5) one of the marshalling lines (10) and one of the inner lines (8) or outer lines (9) can be connected, and that in the case of one of the connecting elements (4, 5) the associated isolating contact (3) is inserted through the inserted one Isolation plug is open.

2. Main distributor according to claim 1, characterized in that a subset of the inner connection elements (4) of the inner lines (8) remains unoccupied and that

Shunting lines (10) are laid between the inner connection elements (4).

3. Main distributor according to claim 1 or 2, characterized in that, in addition to the switching devices for simple subscriber connections, devices (12) are provided for special services, which are connected via additional internal lines (8a) to the internal connection elements (4) of additional contact components (2) that special lines (11) leading from the external connection elements (5) to the additional contact components (2) are branched off, that the isolating contacts (3) belonging to these external lines (9) can be interrupted by isolating plugs (6) and that the special lines (11) are connected Connection elements (5) of the additional contact components (2) are connected, which are connected via the isolating contacts (6) to the associated internal connection elements (4) of the additional contact components (2).