CH256133A - Switching device. - Google Patents

Description

Switching device. In telephony or telegraphy installations, the telephone circuits or the telegraph channels may be in an inactive state, thereby immobilizing the devices.

The object of the present invention is a (switching device used for searching, blocking and signaling faulty telephone lines or circuits or telegraphic channels, whatever the number of these lines or circuits. device ca.raeterise by the fact that it comprises, between the recorder and the junction in Maut, a chain of organs comprising: cc) an orientator associated, on the one hand, with, a researcher who connects it to , on the other hand, to a selector; b) a blocker connected, on the one hand, to the orientator by means of the selector and associated, on the other hand, with a finder at the terminals of which the junctions lead.

According to a preferred embodiment of the invention, the orientator comprises means allowing it, in the first place, to search for a recorder which, having routed a communication to a junction located at. any selection stage does not receive from this junction the signal in return, characteristic of its correct operation; then, to receive from this recorder the indication of the digital signals enabling it to connect to a blocker which has the considered junction in its field of exploration; finally, to search for the first blocker that is available.

The blocker can in particular make it possible to find the faulty junction, then to isolate it from the selector to which it was connected, finally to direct this selector to another available junction in good condition.

The device according to the invention can also comprise means for stopping the searcher of the blocker on the faulty junction which is already Taken by the selector of the recorder, which allows the closing of a circuit. including the various selectors, the recorder, the orientator and the blocker.

Finally, the junction test is preferably carried out by means of an isolated battery and circuitry: the operation has been described in detail in Patent No. 248119.

The accompanying drawings show, by way of non-limiting example, one form of execution of the device according to the invention intended for blocking faulty lines in the last selection stage of an automatic telephony installation.

fig. 1 represents the orientator and its annexes, FIG. 2 1st blocker and its annexes. The recorder oriented the connector on the requested line and sent a signal to the remote station; it waits for the signaling acknowledgment of receipt sent in return by this station. If, after a fordr time of 5 seconds, this pulse has not been received, the line is considered to be out of order.

The recorder then requests an orientator, by the following circuit (fig. 1): start-up earth coming from the recorder, MM wire, Rest position, sector a from XI, then from X2 and from X3, R61, Pin C of combiner li in Position 0, lower winding of relay 4 and Battery.

Relay 4 vieret at work; at contact T44, it forms the circuit of relay 2: Battery, <I>T44,</I> Plot<I>f</I> of combiner R in Position 0, lower winding of relay 2 and ground.

The RE seeker rotation circuit; is then closed: Battery,<I>T42,</I> Plot<I>d</I> of combiner R in Position 0, T23, R121', Plot cao, breaker and winding of seeker RE and earth.

The researcher RE trains his scrubbers and explores his bench, in search of the recorder; the latter is characterized by an Asistent earth polarity on pin <B>31</B> of the RE bank. When the brush M of RE passes over this pin, the upper winding of relay 2 finds a closed circuit and drops out, the flows created by its two windings being exactly opposed: earth, resistance in the register , bench and wiper M<I>of RE,</I> Pin c of combiner R in Position 0, T41, upper winding of relay 2 and Battery.

At contact T23, the seeker rotation circuit <I>RE</I> is broken6. Relay 6 is energized: Battery, T43, R21, Pin g of combiner R in Position 0, lower winding of relay 6 and ground.

The relative position of the three relays 2, 4, 6 characterizes the end of the search for a recorder. The R combiner e1eetro is armed: Battery, <I>T43, R21, T62,</I> Plot ho, R winding and ground.

Relay 6 closes a holding circuit through its contact T63: Battery, upper winding of relay 6, T63, wiper M<I>of RE,</I> resistor and earth in the recorder.

But the upper winding of relay 2 is shunted, it is re-energized, the lower winding becoming preponderant, the traction circuit Tat of the electrode of combiner R is cut off at R21. The combiner leaves Position 0 and goes to Position 1.

The requested line is characterized in the recorder by the Position of the five 61st numerical elements. Knowledge of the first three digits (ten thousand, thousand and hundred) will suffice for the orienteer to determine the blocker having access to the hundred where the supposedly faulty line is located (a blocker has accessed two hundreds).

In Position 1, the numerical element XI is placed in the position characteristic of the tens of thousands digit.

Through its contact T64, the 1st relay 6 closes the 1st attraction circuit of the auxiliary relay 12: earth, T64, winding of the relay 12 and battery.

This RTI ID="0002.0267" WI="11" HE="4" LX="1240" LY="1068"> last Closes, in turn, the 1st attraction circuit of relay 22: earth, T127`, resist - tance, winding of relay 22 and Battery.

The digital element XI is set in rotation: Battery R211, T221,<I>T122',</I> Pin a of the combiner R in Position 1, wire 1 of the bundle of wires, switch and winding of the electro of XI.

The electro from XI trains his players and explores his bench; when it passes over pin a, (we will assume that 0 is the characteristic figure for the tens of thousands), the circuit of relay 21 is closed: battery isolated, series windings of relay 21, R231', R231 , Plot <I>b'</I> of the combiner <I>R</I> in position 1, T126, contactor Cl of the searcher RE, a wire to the recorder, 616 digital element of the tens of thousands of 1 the recorder in Position 0, wire 1 of the bundle of wires connecting the digital element of the recorder to the 616ment X1 of the orientator, Pin a, of X1, wire 1 of the bundle of wires, Pin c' of combiner R in Position 1, T126' and - of Battery isoke.

Relay 21 goes to work and cuts the 1st rotation circuit of XI at R211, which stops its shoes in Position 0.

Via its contact T213, the 1st relay 21 short-circuits the 1st relay 22 which drops out: Battery, T213, winding of relay 22 and Battery. , The relative position of relays 21 and ?? indicates the, end of the orientation of X1, the 1st handset, R goes to Position 2: Battery, T214, R2-12, Plot the of the combiner R in Position 1, meter, winding of the electro R and land.

On Position? of combiner R, the circuit of relay 21 previously deerit is open at b' and at c' of combiner R. Relay 21 drops out, detouring relay 21 returns to work. The combiner passes its contacts in Position 3: battery, R211, T?21, 7'1?2', Plot h of the combiner R in position 2, switch and winding of the electro R, @-t closed, In Position 3, the element X2 is put on the characteristic position of the thousand digit in a way identical to that written for the F#l@@ment X1 in Position 1.

Passing from Position 4 of the combination R is done in a manner identical to that described for 1. to Position 2.

In Position 5 of the combiner R, the element X3 is placed on the characteristic Position of the hundreds digit, in a manner identical to that described for the element X1 in Position 1. The passage from Position 6 of the combiner h is performed in the same manner as described for Position 2.

The combinator is therefore in Position 7 and the digital units X1, X2, X3 respectively occupy positions 0, 1, 1, for example.

The orienteer has all the 616ments to find a blocker (fig. 3) having access to, 1a, line considered.

The position of this blocker on the bench of the RB seeker is indicated by the Position on this. bank of the control wire connecting the 1st Pin <B>bi</B> of sector b of X3 to a pin of this bank.

The rotation circuit of the researcher RB is then closed: Battery, R311, T221, T1'2', Plot e of the combinator R in Position 7, switch, a bearing of the eletro of RB and earth.

The electro RB trains his shoes and explores his bench ä. there. search for the. Position characterized by the control wire. When the 1st shoe <B>C</B> of RB passes on this Position, the 1st belay;21, turns to. work: + from the isolated battery, series windings of relay 21, R231', R231, pin b' of combiner R in position 7, wire 4 of the bundle of wires, sector b of element XI in position 0, thread 0 of thread bundle, repartition block, sector b of element X? in Position 1, wire: control 1, bench and wiper <B>C</B> of the searcher RB, Plot c' of the combiner R in Position 7, T126', and - of the i-solee Battery.

At its break contact 211, the first relay 21 cuts off the first circuit of RB's electro which stops its wipers.

Relay 22 shorted by wire T213 drops out, closing relay 2 pickup circuit: Battery, T214, R222, Combiner Pin R in Position 7, Relay 2 Lower Winding and Ground .

The orientator then proceeds to search for a free blocker (fig. 3), characterized by a resistant earth on pin M of the bench of the seeker RB.

The rotation circuit of the searcher RB is closed again: Battery, T211, T23, T121'. <I>R221,</I> T1`??', Plot a of combiner R in Position 7, switch, RB electro winding and ground.

The electro leads his scrubs, exploring his bench in search of a free line. When his shoe <B>31</B> passes over such a line, the first belay? To. its upper winding energized: Battery, upper winding of relay 2, R2"3, Plot d' of combiner R in Position 7, wiper and bank 111, then (fig. 3), resistor, R22 and earth.

Relay 2 drops out because the fluxes produced by its two windings are exactly opposed.

At contact T23, electro RB has its circuit cut off. Relay 4 has its pickup circuit closed: Battery, T?14, R222, Pins <I>e and f</I> of combiner R in Position 7, R2`?, upper winding of relay 4 and ground .

The activation of relay 4 characterizes the end of the search for a blocker. Combiner R goes to Position 8: Battery, T43, R21, T62, Pin g of combiner R in Position 7, circuit breaker, electro winding and earth.

The blocker (fig. `?) having access to two hundreds must be oriented on the frotteum of the desired hundred. The switching of the wipers is carried out by the blocker relay 4 (fig. 2); for this, the odd hundreds are characterized by an earth on the first sector c of the X3 element of the orientation (fig. 1). In the first case described, the first hundred digit being odd, the first relay 4 of the blocker is put to work by the first circuit following: (fig. 1), earth, sector c of the element X3 in Position 1, Pin d of the combiner R in Position 8, T124', shoe. Dl of the combiner <I>RB,</I> then (fig. 2), bank <I>D, R27,</I> upper winding of relay 4, and earth.

Relay 4 prepares a holding circuit at its contact 41; at T42, 43, 44, it connects its wipers 82,<I>L2, T2.</I>

Relay 11 of the orientator is also set to work by: earth, sector c of element X3 in position 1, pin d of combiner R in position 8, T124', pin e of combiner R in position 8, upper relay winding <B>1,1</B> and Battery.

The orienter can then proceed with the orientation of the seeker BL of the blocker.

The rotation circuit of the BL electro of the blocker is Closed by: (fig. 1), Battery, R211,<I>T221,</I> T122', Plot<I>a</I> of the combiner R in Position 8, T113', RC contactor of the RB seeker, p:uis (fig. 2), R pin, R24, contact breaker, RL electro winding and earth.

The searcher BL trains his shoes ;%, the search for the faulty line. This line is characterized by the Position of the final selector.

When the contactor 82 of the searcher RL passes over this line, the relay 21 of the orientator will have its circuit closed in the following way: (fig. 1), -[- of the battery isolated, windings in series of relay 21, R231', R231, Plot b of combiner R in Position 8, Tlll, wiper .S .of RE, wire extending through the recorder and the final selector, to a pin S'2 of the bench, of the searcher BL, shoe S2, T42, R26, brocke<B>S</B>, then (fig. 1), shoe .S of the searcher <I>RB,</I> T114, Plot c ' of the combiner in Position 8, T126' and - of the Isolated Battery. At contact R211, the 1st circuit of electro BL is broken.

At contact T213, relay 22 is short-circuited and drops out.

Combiner R (fig. 1) takes a step and brings its contacts to Position 9: Battery, <I>T214,</I> R222, T112, Plot g of combiner R to Position 8, breaker, electro and earth.

Relay 1l has its attraction circuit cut at Pin e8, but it is maintained by Battery, lower winding of relay 11, T113,<I>T124'.</I> shoe Dl of<I>RB,</I > then. (fig. 2), Pin D, R27, upper winding of relay 4 .and ground.

The latter also remains at work; likewise the 1st relay 21 is maintained at work by the 1st circuit previously described, the Plots b' and c' of the combinator R in Position 9.

The R combiner of the orientator is in Position 9. A Battery through a low resistor is put on the wire T of the terminal selector and of the faulty league. This has the effect of dropping the connection relay of the terminal selector and separating it from the fault line: (fig. 1), Battery, resistor, Plot e of combiner R in Position 9, T112', wiper <I>T</I> of the seeker <I>RB,</I> then (fig. 2), Plot<I>T, R25, T44,</I> shoe T2 of the finder BL and wire <I> T</I> of the terminal selector not represented on the 1st diagram.

The drop-out of the connection relay of the terminal selector opens the circuit of the relay 21 of the orientator (fig. 1) which drops out. Relay 22, @decourt-circuited on contact T213, re-energizes.

Combiner R goes to Position 10: Battery, R211,<I>T221,</I> T122', T114', Pin g of combiner R in Position 9, circuit breaker, electro winding and earth.

On this Position, the orientator establishes the connection of the blocker on the faulty line: (fig. 2), Battery, Plot f of the combiner R in Position 10, T111', CO shoe of the seeker <I>RB ,</I> then (fig. 2), Plot<I>C0,</I> lower winding, of relay 2 and earth.

Relay 2 closes a holding circuit by: Battery, upper winding of relay 2, coxitaat T21? T44, sensor T2 of the RL searcher and earth to the line cut-off relay, not shown on the diagram.

Relay 2 cuts off at its contact P27 the holding circuit of relay 11 of the orientator (FIG. 1). The latter drops and restores its P111 contact. Holding relay 6 is then short-circuited: battery, pin f in position 10 of combiner F, P111', pin e of combiner R in position 10, T63, upper winding of relay 6 and battery.

Relay 6 drops out, causing auxiliary relay 12 to drop out. Circuit is green or green at T64.

The P combiner enters the Rest position by: battery, P123, Plot la of the combiner in Position 10. contact breaker, P winding and ground.

The dispatcher is free and can service another call.

The recorder receives the signaling of release from the orienteer by the cutting of the wire il.

It orients the final selector on another line of the direction to be reached and completes the establishment of the communication.

We have seen that the blocker tests for Grip on the line in trouble.

Relay 4 has its hold circuit complete at T92.

The availability of the blocker is cut in P9?. Z n intermittent current Best sent by T)3, T43, shoe L2 of the searcher BL, to the signaling lamp of the line, this lamp flickers and attracts the attention of a clear agent of the 1a. reports disturbances.

The latter plugs into the cut-off panel the j ael, - corresponding to the line. The upper winding of relay 2 is short-circuited: battery on wire T to the jack of the cut-off panel (not represented on the 1st diagram), contact T2 of the searcher BL,<I>T44, T21,< /I> upper winding of relay 2 and battery.

Relay 2 drops out, opening at T22 the holding circuit of relay 4 which drops out in turn.

The blocker is available and can serve another junction.

Claims (6)

CLAIM Switching device used for the search, blocking and signaling of telephone lines or circuits or telegraph channels in default, regardless of the number of these lines or circuits, characterized by the fact that it comprises, between the recorder and the faulty junction, a chain of organs comprising: a) an orientator associated, on the one hand, with a searcher which connects it to the recorder and, on the other hand, with a selector; b) a blocker connected, on the one hand, to the orientator through the intermediary of the selector and associated, on the other hand, with a finder at whose pins the junctions lead. SUB-CLAIMS 1. Device according to. claim, characterized by the fact that the orientator included means allowing him: feedback signal characteristic of its proper functioning; b) to receive from this recorder the indication of the digital elements enabling it to connect to a blocker which has the junction considered in its field of exploration; c) -to search for the 1st First blocker who is available. 2. Device according to claim, characterized in that the first blocker comprises means allowing it: a) to search for the faulty junction; b) to isolate it from the selector to which it was connected; c) to direct this selector to another available junction in good condition. 3. Device according to claim and sub-claims 1 and 2, characterized by the fact that it comprises means for stopping the researcher of the blocker on the faulty junction, the latter being already Taken by the first selector of the recorder, this which allows the closing of a circuit comprising the various selectors, the recorder, the orientator and the blocker. 4. Device according to claim and sub-claim 2, characterized in that the first circuit of the blocker is supplied by an isoke battery forming part of the orientor. 5. Device according to claim and sub-claims 1 to 4, characterized by the fact that it comprises means for separating from the first blocker 1'orienteur which has found a jonetioji in Maut and to assltrer its release of this orienteur. 6. Device according to claim and los sub-claims 1 to 5, characterized by the fact that it comprises means for ensuring the signaling of the junction taken by a blocker and maintaining it until it has been intervened. to cut the junction, which releases the blocker.