Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q1/00—Details of selecting apparatus or arrangements
  • H04Q1/02—Constructional details
  • H04Q1/10—Exchange station construction
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q1/00—Details of selecting apparatus or arrangements
  • H04Q1/02—Constructional details
  • H04Q1/03—Power distribution arrangements

Definitions

• the invention relates to an expandable
• Telecommunication exchange system consisting of a wall housing for receiving several assemblies which can be connected to one another via a common printed circuit board, the printed circuit board being connected to the base plate of the wall housing.
• DE-OS 40 39 502 describes a wall housing for small communication switching systems in which a wiring circuit board is attached to a floor pan of the wall housing.
• the individual assemblies are connected to one another via corresponding plugs via the wiring circuit board.
• the individual assemblies are enclosed in a common metal housing, as a result of which electromagnetic compatibility (EMC) is achieved.
• EMC electromagnetic compatibility
• the object of the invention is now to design a switching system of the type mentioned in such a way that it has greater expandability.
• This object is achieved in that for a group of connecting line and connecting line circuits, including the associated group-specific Control device is designed as a closed metal housing module with a connector and a further connector is provided that the power supply and the connection of the control device to a bus system via the additional connector that the wall housing has a base plate with a connecting circuit board, with the Mating connector for the additional connector-carrying connecting circuit board is connected to the bus system and the power supply, several modules being connectable to the connecting circuit board.
• the telecommunication switching system can easily be expanded by adding further modules.
• Figure 2 is a perspective view of the base plate
• Figure 3 is a perspective view of the base plate with inserted circuit boards
• Figure 4 is a plan view of a connection circuit board
• Figure 5 is a plan view of a connecting circuit board without distributor
• Figure 6 is a perspective view of a module.
• Modules 2 and 6 can be plugged onto a base plate 1, which is shown without the connecting and connecting circuit boards (FIG. 1).
• a base plate 1 which is shown without the connecting and connecting circuit boards (FIG. 1).
• the base plate 1 for ax. four modules 2 and 6 is provided.
• the base plate 1 for an additional number of modules In the plugged-in state of the modules on the base plate 1, the whole can be closed by placing a cover cap 3.
• each module 2 contains all the components for setting up an independent telecommunications switching system, for example a private branch exchange. These include connecting line and connecting line circuits, a control device, switching matrix, etc.
• connecting line and connecting line circuits for example a private branch exchange.
• the modules 2 and 6 are designed as a closed metal housing, preferably made of sheet steel.
• a module has two plugs on its side facing the base plate 1, the connections of the connecting and connecting lines via one plug and the connection to a bus system and to one via the other plug
• Power supply device takes place.
• up to four modules 2 can now be used, in which case the base plate 1 can be used to expand an already existing telecommunications switching system if the other base plate 1 contains at least one power supply unit 6, the external dimensions of which also include a module 2 correspond.
• the individual control devices of the modules 2 can now only carry out those control processes which relate to the module itself, but it is also conceivable for a control device of a module to be effective not only for the module in question, but also for other modules, whereby a division of tasks for the individual control devices is possible.
• So z. B one or more control devices for the switching processes and other control devices for non-switching processes can be used. The control devices communicate with each other via the bus system.
• the base plate 1 shown in perspective in FIG. 2 is made in one piece from electrically non-conductive plastic in the exemplary embodiment shown. It is also conceivable to make this base plate from sheet steel.
• Connection circuit board 8 is held similarly, it rests on supports 27, and is held down by noses (not shown) attached to the partition 21, while latching springs 22 hold the circuit board 8 on the opposite side. This printed circuit board can also be removed again after the detent springs 22 have been pushed away.
• a connection circuit board 7 can be provided, for example, like the connection circuit board 4 with a distributor 9, the connection between the distributor 9 and the
• Connector 12 is made via a corresponding conductor track on the underside of the circuit board.
• the connecting cables for connecting and connecting lines which are brought in from the outside, are lead out of the spaces between two printed circuit boards 7 and placed on the distributor 9 (FIG. 4). If a special distributor is present outside the wall housing, a corresponding connecting cable can be routed to a connecting circuit board 5, the cable being held thereon with corresponding fastenings 11.
• the cable 10 can be connected directly to the connector plug 12.
• the connection circuit board 5 does not necessarily have to be designed as a circuit board, it can also be a sheet metal plate with the corresponding dimensions (FIG. 5).
• a power supply module 6 can also be used instead of a module 2. In this case, no connecting circuit board is required, since the power cable introduced through a cable bushing 14 is connected directly to the module 6.
• the connecting circuit board 8 serves to supply the power supply for the modules 2 and to connect them to a bus system.
• the connecting circuit board 8 is provided with plugs, not shown, which are mounted in alignment with the relevant connector plug 12 on the connecting circuit board 8 for each module.
• the different heights of the connection circuit board 7 and the connection circuit board 8 are compensated for in that the connector plug 12 is arranged on the connection circuit board 7 in such a way that its top side is flush with the top side of the associated connector on the connection circuit board 8.
• the connecting circuit board 8 is provided at its two lateral ends with a connecting plug 13, by means of which an electrical connection to the connecting circuit board 8 of an adjacent base plate 1 can be established.
• the modules are plugged onto the connector 12 of the connector circuit board 7 and the associated connector, not shown, of the connector circuit board 8.
• a detent spring 20 engages in an opening 24 provided in each end wall 25 of a module 2.
• this holder can again be solved. Since the module 6 for the power pack externally has the same structure as the module 2 (with the exception of the missing connector plug), the module is held with the aid of the detent springs 20 in the manner described.
• the base 26 of the base plate is provided with attachment openings 30.
• attachment openings 30 On the upward-facing side of the base plate 1 when attached to the wall, upward-facing hooks 28 are attached, which can be attached to the cover cap 3. This is then locked by a closure 29, which is attached on the opposite side (below) of the base plate 1 and which resiliently engages in an opening (not shown) of the cover cap 3.

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Power Engineering (AREA)
• Structure Of Telephone Exchanges (AREA)
• Installation Of Indoor Wiring (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=6537471

Family Applications (1)

Country Status (7)

Families Citing this family (1)

Family Cites Families (3)

• 1994
  • 1994-12-30 DE DE19944447183 patent/DE4447183A1/de not_active Ceased
• 1995
  • 1995-12-09 EP EP95940158A patent/EP0748568A1/de not_active Withdrawn
  • 1995-12-09 CZ CZ962441A patent/CZ244196A3/cs unknown
  • 1995-12-09 PL PL95315912A patent/PL315912A1/xx unknown
  • 1995-12-09 SK SK1069-96A patent/SK106996A3/sk unknown
  • 1995-12-09 WO PCT/DE1995/001763 patent/WO1996021322A1/de not_active Application Discontinuation
  • 1995-12-09 HU HU9602376A patent/HUT74704A/hu unknown

Non-Patent Citations (1)

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