HUT74704A - Extensible communications switching installation - Google Patents

Abstract

The communications switching installation described is made up of several (2) modules containing the subscriber-line and junction-line circuits and their associated control unit plus coupling field. Each module (2) is, in itself, a complete communications switching installation. The base plate (1) can be fitted with a connection circuit board which connects all the modules (2) and which links the control units of the modules (2) to a common bus system and to the power supply. Another module (6) is connected as supply unit and can also be connected to the connection circuit board in order to allow the operating power to be fed in. The modules (2 and 6) can be designed as sheet metal housings, thus largely preventing magnetic fields radiating from them. The subscriber and junction lines are connected up by means of connection circuit boards which can also be mounted on the base plate and which are fitted with a contact plug for connection to a module (2).

Description

The present invention relates to an expandable telecommunications apparatus. This telecommunication device is connected to one another by means of a common guide plate with its motherboard.

Such telecommunication equipment is already known. Thus, DE-OS 40 39

German Publication No. 502 describes a wall-mountable housing with a wiring guide plate fixed to its bottom pan. The individual plugs connect to each other. In this known wall-mounted housing, each mounting unit is surrounded by a common metal housing. This ensures electromagnetic compatibility. With this known telecommunication device, the expansion possibilities are limited by the fact that each guide plate is housed in a common housing.

The object of the present invention is to extend the telecommunications described in the introduction.

In accordance with the present invention, this object is solved by providing a closed metal enclosure for its group, including the group's individual control equipment, ······ ································································

serves as a module with a plug and an additional plug. An additional plug is used to supply power and connect the control equipment to a bus system. The wall-mounted housing has a motherboard with a connecting guide plate. Connection to the bus system and the power supply is via a connector guide plate carrying the plug for the additional plug. Several modules can be connected to the connecting guide plate.

Through the module's unique control device, the use of a fully self-contained module enables easy expansion of the telecommunication equipment by adding additional modules.

Preferably, one module is configured as a network unit.

Our invention by way of example! Embodiments of the invention will be described in more detail by means of the drawings, of which

Figure 1 is a perspective exploded view of the entire structure, a

Figure 2 is a perspective view of the system board, a

Figure 3 is a perspective view of the motherboard with the guides inserted, a

FIG

Figure 5 is a plan view of a connector control board without a distributor, a

Figure 6 is a perspective view of a module.

Modules 2 and 6 can be plugged into the motherboard 1 shown without connecting and connecting guides (FIG. 1). In the illustrated embodiment, it is assumed that the motherboard 1 has a maximum of four modules 2 and 6 respectively ···· ······································································ · · · · · ········ · · ····

- 3 serve. However, the motherboard 1 can be designed for a larger number of modules. When the modules are plugged into the motherboard 1, they can be closed by inserting a cap 3.

Each of the 2 modules contains all the building blocks necessary for the function to build a separate telecommunication device, such as a telephone extension unit. Examples of such components are the connecting and connecting lines, a control device, a coupling box, etc. With respect to the further structure of the module 2, reference is made to the patent application P 43 42 740.5, so that the internal structure of the modules 2 will not be discussed further herein. Modules 2 and 6 are preferably made of sheet steel as a closed metal housing.

The module has two plugs on the side facing the motherboard 1. The connectors of the connecting wires and the connecting wires are connected through one plug, while the other plug connects to a bus system and a power supply. The number of 2 modules that can be used depends on the nature of the configuration and can be up to four. In this case, the motherboard 1 can be used to extend an existing telecommunication device if the other motherboard 1 comprises at least one module 6 (network unit), the outer dimensions of which are also the same as the module 2. According to the configuration, each control unit of the modules 2 performs only the control processes related to the module itself. However, it is possible to have a variant in which the control unit of a module interacts not only with the module in question but also with other modules.

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- 4 It is also possible to share the tasks between each control unit. For example, one or more control devices may be used for telecommunication processes, and other control devices may be used for non-telecommunication processes. The control devices communicate with each other through the bus system.

Fig. 2 is a perspective view of the base plate 1 in one embodiment made of an electrically non-conductive plastic. Alternatively, the motherboard may be made of sheet steel.

At the bottom 26 of the base board 1 are arranged a plurality of conductive elements 15 and cable guiding elements 16 (Fig. 2) which secure the cables introduced through the cable passages 14 on the flange and the partition 21. The supports 17 on the bottom 26, which will be used to support the connecting guide plates, as will be explained below, provide a clearance between the underside of the guide plates and the bottom 26 in which the cables can be laid. The connecting guide plates 7, which rest on the supports 17, are held on one side by nose 18 and on the other side by properly formed snap-in springs 19 (Fig. 3). In addition, a stop 31 serves to secure each of the connecting guide plates 7. By squeezing the snap springs 19, the connecting guide plates 7 can be easily separated from the base plate 1. The connecting guide plate 8 is held in a similar manner, rests on the supports 27 and is supported by non-depicted noses on the partition wall 21, while the opposite side also has spring-loaded springs 22 holding the connecting guide plate 8. This guide plate can also be removed by stretching the snap springs 29.

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The connecting guide plate 7, such as the connecting guide plate 4, may be provided with a distributor 9. The distributor 9 and the plug 12 are connected by a suitable guide wire on the underside of the guide plate. The externally connected connecting cables for the connecting and connecting cables are forced out of the intermediate spaces between the two connecting guide plates 7 and placed on the distributor 9 (Fig. 4).

If there is a separate distributor outside the wall-mounted housing, a suitable connecting cable can be routed to a connector guide plate 5. This cable is secured to the connector guide plate 5 with suitable fasteners 11. The cable 10 can be connected directly to the plug 12. In this case, the connecting guide plate 5 does not have to be designed as a guide plate, but may also be a plate of a suitable size (Fig. 5).

As mentioned above, a module 6 (network unit) may be used instead of a module 2. In this case, there is no need for a connector control board since the network cable introduced through a cable passage 14 is directly connected to the module 6.

The connecting guide plate 8 serves to supply power to the modules 2 and to connect the modules 2 to a bus system. To this end, the connecting guide plate 8 is provided with plugs (not shown), which for each module are overlaid on the connecting guide plate 8 with the corresponding plug 12. The different height of the connecting guide 7 and the connecting guide 8 is compensated by the fact that the connector plug 12 is placed on the connecting guide 7 so that ··· · ··· · · · · · ·············

- that its upper side is overlapping the upper side of the corresponding plug on the connecting guide plate 8. The connecting guide plate 8 is provided with a connecting plug 13 at its two lateral ends, by means of which an electrical connection can be made with the connecting guide plate 8 of an adjacent base plate.

The modules are plugged into the connector plug 12 of the connector guide plate 7 and its corresponding plug (not shown) in the connector guide plate 8. In the end position, each spring 20 snaps into the opening 24 in each end wall 25 of each module. By retracting the snap springs 20, this anchorage can be released. Since the module 6 of the network unit has the same external structure as the module 2 (except that the plug is missing), the module 6 is held in place by the snap-in springs 20 as described.

For mounting on the wall, the bottom 26 of the base board 1 is provided with mounting holes 30. When mounting the base plate 1 on the wall, there are upwardly facing hooks 28 on which the closure cap 3 can be attached. This is then locked by a lock 29 located on the opposite side (bottom) of the base plate, which, when spring-loaded, engages in an opening (not shown) on the cap 3.

Claims (10)

PATENT CLAIMS An expandable telecommunication device comprising a plurality of wall-mounted housings for receiving a plurality of interconnecting mounting units via a common guide plate, wherein the guide plate is connected to the base plate of the wall-mounted housing, characterized in that The module (2), which is a closed metal housing with a plug and an additional plug, is provided for its group, including the individual control unit of the group, to provide an additional plug for power supply and connection of the control unit to a bus system. a base plate (1) with a guide plate (8), and the connection to the bus system and power supply via a connecting guide plate (8) carrying a plugs for a further plug, which is provided with several modules for the connecting guide plate (8) (2) can be connected. Telecommunication device according to claim 1, characterized in that one of the modules (2) is configured as a network unit. Telecommunication device according to claim 1 or 2, characterized in that the connecting guide plate (8) is provided with a connecting plug (13) accessible at least on one side, which can be connected to an additional motherboard (1) directly adjacent to it. Connector • · · plug. 4. Telecommunication device according to any one of claims 1 to 3, characterized in that a module (2) on the base plate (1) has a unique connecting guide plate (7) with a plug (12). 5. Telecommunication device according to one of claims 1 to 3, characterized in that the connecting guide plate (7) comprises a distributor (9). 6. Telecommunication device according to one of Claims 1 to 3, characterized in that the connecting guide plate (7), which is supported at a distance from the bottom (26) of the base board (1), is supported by the nose (18) and snap springs (19) Telecommunication device according to claim 6, characterized in that conducting elements (15) and cable guiding elements (16) are arranged in the space between the connecting guide plate (7) and the bottom (26). 8. Telecommunication device according to any one of claims 1 to 3, characterized in that the connecting guide plate (8) on the supports (27) is supported by snap springs (22) fixed on the bottom (26). 9. Telecommunication device according to one of Claims 1 to 3, characterized in that the plug (12) and the plugs (8) of the connecting guide plate (8) are placed at the same height. • · * • · · · ······ ···· « 10. Telecommunication device according to one of Claims 1 to 3, characterized in that the housing of the module (2) is provided with an opening (24) on its two front walls (25) into which the snap spring (20) secured to the bottom (26) engages with the connector guide plate (7) and the connector guide plate (8) when plugged in.