NL1037450C2 - METHOD FOR BRINGING A TELEPHONE CENTER - Google Patents

Description

Method for updating a telephone exchange. Field of the invention

The invention relates to a method for updating a telephone exchange which telephone exchange comprises: - an incoming part of a ground cable comprising first conductors; - an inner cable comprising second conductors connected to the first conductors by means of a bottle weld; and a first main distributor connected to the second conductors.

This is in particular a public number exchange.

Background of the invention

Telephone exchanges are known which, in addition to fixed telephony, are usually also arranged for other forms of telecommunication. Such power stations often include obsolete and bulky, switch cabinets and main distributors, and ground cables which are connected to inner cables by so-called bottle welding. To bring these exchanges up to date, new, modern and compact switch boxes and main distributors must be installed, and usually also new so-called SIP boxes and DSLAMs for other telecommunication services. After testing, they can take over the task of the old switch boxes, main distributors, SIP boxes and DSLAMs, after which they can be removed. The bottle welding must also be removed. 25 For example, an old power plant that takes up much space can be replaced by a new, much more compact power plant.

There is now a need for an appropriate and efficient method for updating a telephone exchange, whereby the data traffic during the activities can also go through as undisturbed as possible. The present invention now provides such a method.

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Summary of the invention

To this end, the invention provides a method according to claim 1. The construction of the by-pass makes it possible to remove the bottle weld. The part of the ground cable located between the bottle splice and the connection point of the bypass on the first conductors can also be removed, as well as the part of the inner cable located between the bottle splice and the connection point of the bypass on the second conductors. The data traffic can go through the old main distributor. The connection here preferably comprises: - placing a second main distributor; - connecting the first conductors to the second main distributor by means of first connecting means, for example a first cable, comprising third conductors; and - connecting the second main distributor to the second conductors by means of second connecting means, for example a second cable, comprising fourth conductors.

A new, for example more modern and more compact, main distributor 15 can thus be installed, while the data traffic can still continue via the old main distributor.

The second main distributor can be connected to telecommunication equipment, for example by means of a third cable. The second main distributor can thus be prepared for taking over all data traffic between subscribers and suppliers of telephony and other telecommunication services.

Preferably, the second main distributor is releasably connected to the second conductors. After testing the second main distributor and the telecommunication equipment connected thereto, the second main distributor can again be disconnected from the second conductors. The first main distributor, with all equipment connected to it, can then be removed and the second main distributor, with all equipment connected to it, has completely taken over all telecommunication tasks.

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Brief description of the figures

The invention is explained in more detail below with reference to an exemplary embodiment of a method according to the invention, shown more or less schematically in the figures. Therein: Figure 1 shows an example of a telephone exchange to be brought up to date; figure 2 said central station after the installation of bypass courses according to the invention and the placement of new telecommunication equipment; and - figure 3 shows the telephone exchange updated.

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Output examples

Figure 1 shows, more or less sketchily, an outdated telephone exchange (1). The exchange (1) is housed in a relatively large space (25) which can cover several floors of a building. The central unit (1) is fixedly connected to a number of house connections by means of a number, for example 20-50, of ground cables (2). Each ground cable (2) comprises a number of first conductors (3), for example 900 da (double conductors) corresponding to 450 housing connections. Each ground cable (2) is connected by means of a bottle weld (7) to a number of, for example 15, inner cables (5). The ground cables (2) enter a cable cellar (24) in which the bottle welds (7) are also located. Each inner cable (5) again comprises a number of second conductors (6), for example 60 da corresponding to 30 housing connections, which are connected to a first, old main distributor (8). A PSTN (Public Switched Telephone Network) switch box (23) is connected to the first main distributor (8) and also, via a number of SIP (Session Initiation Protocol) cabinets (22), a number of DSLAMs 25 (Digital Subscriber Line Access Multiplexers) for other telecommunication services (not shown).

According to the invention, see Figure 2, bypass tubes (9) are laid parallel to the bottle welds (7) which connect the ground cables (2) or the first conductors (3) to the inner cables (5) or the second conductors (6) . A second, new main distributor (10) is then also placed. All this is done in the cable cellar (24). For example, the procedure is as follows. New ironwork is placed for the second main distributor (10). A bottle weld (7) is detached from the rack on which it is mounted and placed on the floor. A first, pre-processed cable (11) comprising a number of third conductors (12), for example 300 da, is connected to the second main distributor on the side of the ground cables (2). A second, pre-processed cable (13) comprising a number of fourth conductors (14), for example 100 da, is connected to the second main distributor on the side of the inner cables (5). Subsequently, the first cable (11) or the third conductors (12) is connected to the correct ground cable (2) or the correct first conductors (3) by welding at the location of a first connection point (16). The second cable (13) or the fourth conductors (14) is likewise connected to the correct inner cable (5) or the correct second conductors (6) at the location of a second connection point (18). All ground cables (2) and inner cables (5) are thus connected to each other via by-pass lines (9). The data traffic 15 still continues through the bottle welding (7) and the first main distributor (8).

A new, for example more modern and more compact, PSTN switch box (23 ") and new SIP boxes (22") can now be connected to the second main distributor (10). The second main distributor can thus be prepared for taking over all data traffic between the subscribers and the providers of telecommunication services. The second cables (13) are thereby releasably connected to the second main distributor (11). The second main distributor (10) can thus be installed and tested, while the data traffic can continue via the first main distributor (8).

For connecting a second cable (13) or fourth conductors (14) to an inner cable (5) or second conductors (6) at the location of a second connection point (18), use can be made of first connecting means. The first connecting means comprise a first connecting strip and are adapted for releasably connecting fourth conductors (14).

Use can be made of second connecting means for connecting a second cable (13) or fourth conductors (14) to the second main distributor (10). The second connecting means comprise a second connecting strip and are adapted for releasably connecting the fourth conductors (14).

Subsequently, the inner cables (5) or second conductors (6) can be cut at a location located between the bottle welds (7) and the second connection points (18), and the second cables (13) of the second main distributor (10) can be disconnected. From that moment the data traffic takes place via the second main distributor (10) and the associated telecommunication equipment (22 ", 23"). The first main distributor (8), with all equipment connected to it, can now be removed.

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Also the bottle welds (7) and the portions (15) of the ground cables (2) located between the bottle welds (7) and the first connection points (16) as well as the portions (17) of the inner cables (5) located between the bottle welds ( 7) and the second connection points (18) can be completely removed. What then remains, see figure 3, is a modern and compact new exchange (26) which only takes up a small part of the volume of the old exchange (1). The released space (25) can now be used for other purposes.

It will be clear that the invention is not limited to the given exemplary embodiment, but that all kinds of variants are possible within the scope of the invention. It is essential that a by-pass is installed parallel to an existing bottle weld, after which the bottle weld can be removed. A new main distributor and a new PSTN control cabinet can also be installed, as well as, for example, new SIP cabinets. After testing, they can take over the task of the old main distributor, switch cabinet and SIP cabinets, after which they can be removed. For example, an old and space-intensive exchange can be replaced by a new and compact exchange, whereby the data traffic during the activities can continue as undisturbed as possible.

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Claims (9)

A method for updating a telephone exchange (1) which telephone exchange comprises: 5. an incoming part of a ground cable (2) comprising first conductors (3); - an inner cable (5) comprising second conductors (6) connected to the first conductors by means of a bottle weld (7); and - a first main distributor (8) connected to the second conductors; characterized in that the method comprises: 10. connecting the first conductors to the second conductors via a by-pass line (9), parallel to the bottle weld. Method according to claim 1, characterized in that the connection comprises: - placing a second main distributor (10); - connecting the first conductors to the second main distributor by means of first connecting means, for example a first cable (11), comprising third conductors (12); and - connecting the second main distributor to the second conductors by means of second connecting means, for example a second cable (13), comprising fourth conductors (14). Method according to claim 2, characterized in that the method also comprises connecting the second main distributor to telecommunication equipment (22 ", 23"), for example by means of a third cable (4 "). A method according to any one of the preceding claims, characterized in that the method also comprises removing the bottle weld. A method according to any one of the preceding claims, characterized in that the method also comprises at least partially removing the part (15) of the ground cable located between the bottle splice and the connection point (16) of the by-pass on the first conductors. 6. Method as claimed in any of the foregoing claims, characterized in that the method also comprises at least partially removing the part 1037450 (17) of the inner cable located between the bottle splice and the connection point (18) of the by-pass on the second conductors. Method according to claim 2, characterized in that the second main distributor is releasably connected to the second conductors. A method according to claim 7, characterized in that the method also comprises: - testing the second main distributor and the telecommunications equipment connected thereto; and - disconnecting the second main distributor from the second conductors. 9. A method according to any one of the preceding claims, characterized in that the method also comprises removing the first main distributor. -¾ © 3 7 4 5 0