DE703960C - ld systems, in particular telephone systems - Google Patents

Description

Circuit arrangement for reporting faults in telecommunications systems, in particular Telephone systems The invention relates to an arrangement for automatic Fault report from one exchange to another exchange by synchronous setting of in the reporting and 'the other exchange. arranged switchgear in telecommunications systems, in particular telephone systems. ' If the fault report is saved in the other exchange in these systems, this means that the fault message is also sent in the event of only temporary or fault-like faults Processes remain in place even though there is actually no longer a fault. As a result, personnel would be sent unnecessarily to rectify the reported malfunction will. In order to avoid this, the arrangement in the known systems is as follows made that when the fault disappears, those for reporting the same can be set synchronously Derailleurs are set in motion again and a cancellation signal to the other Transfer switching center. This deletion process only comes into effect, when all of the already reported faults have disappeared. One could however, delete the respective messages individually; but that would be a significant one Require effort on switching means.

To be one of those with a. considerable effort on switching means To avoid associated deletion, the present invention takes another Path. This consists in that after reporting a fault to the other exchange actuated by the switchgear switching devices in the reporting exchange will, which repeal of the adjustment of the rear derailleurs serving incentives make the characteristics of the disturbance ineffective insofar as a repeated automatic report of the same fault from the reporting switching center from prevents, however, in the other exchange a repetition of the same error message by manually zii actuating switching means with repeated synchronous adjustment of the switching mechanisms is initiated if the reported fault still exists.

As an exemplary embodiment of the invention, a telephone system is selected in which a sub-exchange [TA is connected to a node exchange KA and the latter is connected to a main exchange HA . Faults occurring in the sub-office (r: 4 are reported to the node office KA and from there to the main office HA by means of synchronously setting switching devices. Faults occurring in the node office KA are reported to the main office I-IA using the same switching devices. In the present exemplary embodiment, the switching devices consist of indexing works, one of which lies in Knotenamt KA derailleur to the switching arms: and this .im main Office HA switching device located creases the switching arms az / c @> is equipped. to transmit the fault message from Unteramt L'A to node Office KA of the disorder are appropriate Signal relay in the node office KA via a two-wire connection line T'L, between the two Jlnitern influences, while for further transmission of the fault message as well as for reporting of faults that have occurred in the node office from the node office KA to the main office HA, the synchronous switching mechanisms at the ends of a two-wire Connection line ng I'Lz be used. As in the exemplary embodiment, the connecting lines VL and I'L2 can be special signal lines; it can. but also be connecting lines that serve the speech communication between the relevant offices; they are then used in a known manner for fault reporting either only when the connection lines are free or when they are busy.

In detail, the arrangement shown in the embodiment works in the following way: Solves z. B. an individual fuse (individual alarm) in the sub-office UA, the contact xif is closed so that the relay Eu in the node office KA is excited via the a-wire of the connecting line VL. This fault message is in the switching mechanism TV, by closing the Kontaktes.a eic in the contact bank coated by the switching arm a, by closing the contact 12 eir in the contact bank coated by the switching arm b, and by closing the contact 43 eu in the by the switching arm c, marked contact bank. By closing the contact 56 eu, the winding I of the relay An is energized, provided that the switching mechanism IV is in the 0 position (Schaltaren dl). By closing of the contact 85 to the coil of the relay is l C to a compound of Vein line TAL. switched on and energized via this wire in series with the relay A located in the main office HA , if the switchgear TV in the main office HA is also in the 0 position. This circuit is similarly excited and only comes about when the contact is closed when the relay is closed. This is the case when the switching mechanism W2 in the main office HA (switching arm c_) is in the 0 position.

By energizing the relay C via its winding I, the contact 37c is closed; it causes the relay K to be excited via earth, battery, resistor 11'i ", contact 41 v" relay K, switching arm e, of selector W, in position 0, contacts 36xn, 37e 38p "earth. By closing contact 76 k the relay J i is excited, so that a battery potential is applied to the ring wire of the connecting line HL2 via the contacts 80 i, and 82 c. Since the contact 92a is now closed in the main "int HA as a result of the excitation of the relay A , the following circuit is established via the b wires: earth, battery, resistance Wi7, contact 78P "resistance Wi" contacts 8o il, 82c, 1) wire of the connecting line hL2, contacts 92a, 94o, relay E, earth circuit is in the main office HA energizes relay e; it causes through the contact 1 1 2 e influencing the rotary magnet D2 of the switching mechanism W2 in the main office HA Meanwhile, the rotary magnet D, of the switching mechanism is W, ioi in Knotenamt KA about the contact.. , has been energized. Both switching mechanisms thus carry out a switching step e impulsive influence of the rotary magnet D, takes place through the interplay of the relays K, J, and the rotary magnet Dl, the relay T, through its contact 8oi, transmits the current surges through the relay E to the rotary magnet D2. Since, in the case of the present fault, the switching mechanism W in the node exchange KA has already reached the contacts 2 marked by the fault after the second switching step, the switching mechanisms W and W2 on these contacts are first shut down. About the switching arm c, namely the relay P1 is excited via earth, battery, relay P1, contacts 75 p1, 741i, 73 c, switching arm cl on contact 2, contacts 46 eltu, 43 eu, 44,9u, earth. It is placed in a holding circle via contact 72 pi. Opening the contact 3 $ p1 further influences the rotary magnet D, and opening the contact 78p1 further influences the. Rotary solenoids D2 prevented; by closing contact 79p1, the following circuit is established: earth, battery, resistor Wie, contact 79P1, winding I of relay M, contact 77 in, switching arm b1 on contact 2, contact i5 eltit, relay Ehu, contacts i2 eit, 1 i gzt , Earth. In this circuit, the relay responds to Ehu; the relay 11i1 is initially not influenced as a result of its two oppositely connected windings I and II. By opening the contact 15ehit, the relay Ehit interrupts the circuit just described; in the process, it is placed in a holding circle via contact 16ehu-. Relay M is now also influenced via its winding II as a result of its winding I being switched off at contact 15.

In the meantime, by opening the contact 86p, the circuit running over the a-wire of the connecting line VZ, - has been interrupted, so that the relay A in the main office HA is de-energized; A circuit for the delayed responding relay 0 is closed at contact 104a. Before it is energized, after the de-energization of relay A, the following circuit can be established: earth, battery, relay A12, switching arm or on contact 2, contact iiov2, logo, io7a, earth. The relay Ale is placed in a hold circuit via its contact 114a, so that it remains energized after the contact 1o9 o is opened when the relay 0 responds. The signal lamp AL2 is switched on via the contact 118a12. This means that the malfunction is reported from the UA sub-office to the HA main office. In the meantime in the node office KA, after the relay Ehu has been energized, the malfunction identification in the contact b: änk swept by the switching arm cl is opened by opening the contact 46 and by opening the contact 57 ehu the cause of the malfunction initiated. This prevents the same fault message from being automatically transmitted again. At the contact 4eu, however, the fault identification has been maintained in the contact bank marked by the switching arm a, 1 for purposes that will be explained later.

After the relay M has been energized via its winding II, as described above, the following circuit is now established: earth, battery, resistor Wila, contact 41 v1, relay K, switching arm e1 on the contact segment, contacts 37c, 35m, earth. The relay K responds and causes the relay f1 to be energized via the contact 76k. By closing the contact ioil, the rotary magnet Dl of the switching mechanism W1 is excited, so that the switching mechanism W1 is advanced in the node office KA. This switching takes place through the interplay of the relays K, h and the rotary magnet Dl, which through its contact 4o dl causes the relay K to de-energize with each step. The forward shift goes on until the switching mechanism W, reaches its 0 position. All relays, with the exception of relays Eu and Ehu, return to the rest position, so that another fault message can be transmitted as soon as the switchgear W2 in the main office HA has also reached its 0 position. This comes into the 0 position that after the excitation of the relay 0 via the contact 95 o and the switching arm c, an excitation circuit for the relay E is established. The rotary magnet D2 is excited via contact ii 2 e, which interrupts the circuit for relay E at contact 9.7d2 with each switching step. This interplay between the relay E and the rotary magnet D, - is ended when the switching mechanism D2 reaches the 0 position. In the main office HA , the relays previously influenced also return to the rest position, with the exception of the relay AL2, which keeps the signal lamp AL switched on to identify the reported fault. New fault reports can now be transmitted. If, for example, a group alarm occurs in the sub-office UA, the contact ytt is closed and causes the relay Gu in the node office KA to be energized. There is a new synchronous setting of the switching mechanisms W1 and W ,, until the marked contacts 3 are reached. In the main office HA , the lamp ALs is then made to light up. The rear derailleurs are then returned to the 0 position, as above.

Another error message is issued if z. B. a voter turns for a long time without finding, or because his magnet gets stuck is constantly energized (voter alarm). The contact in the sub-office UA is closed and the relay Wu is activated via the b-wire of the connecting line VLI. The switching mechanisms W1 and W2 are set in motion and in this case come to a standstill on the fourth contact, so that the signal lamp AL4 lights up in the main office HA. 'After the fault message, the switching mechanisms lt' and TV are switched on again. in the 0 position.

Relays Ek, Gk and TUk are actuated when the corresponding faults occur in the Node.nit KA. This enables the switching mechanisms ti'1 and TV to be set. on the fifth, sixth or seventh contact, so that the corresponding signal lamp is switched on in the main office HA. The switchgear TV 1 and J - '= also return to the 0 position after this fault message. In addition to the malfunctions mentioned, other malfunctions can of course also be reported to the main office HA by the same or different offices.

As mentioned above, a voter alarm is given to the main office HA as soon as a voter z. B. rotates for a long time. This same alarm can, however, also come about if the voters are working properly if the setting times of several voters overlap. As a result of the message being saved, however, the fault message remains in the main office, even if the alarm disappears again after the dialer has been set. In order to give the officer in the main office the opportunity to check whether it is just a temporary alarm or an actual fault, for example, further facilities are provided through which the officer can repeat the fault report can. The check can extend to every malfunction report or only - carried out for certain reports «> earth. Is z. B. a voter alarm has been given from the sub-office UA to the main office HA and if the officer wants to check this message, she presses the fourth search button (St I, II) after deleting the message (AL,) by pressing the trigger button AI'IV. This closes the contacts 4 fully St I and St 1I. By closing 4 St 1I, an excitation circuit is created for the relays JZ and b'2 via: earth, battery, resistor Wi5, switching arm c2 in 0 position, 4St II, contact 98p2, relay J2,); '., Earth. After energizing the relay I'2, this circuit runs independently of the switching arm c. = Via the contact 102v- By closing the contact 88v2, the winding 1I of the relay t'1 in the node office KA is excited via the a-wire of the connecting line VLZ. The relay L ", which is in the same circuit, does not respond due to the resistance 1Yis. By closing the contact 83 v1, I -'- L." since contact 93 i2 is also closed, relays B and E are energized in series. The rotary magnet Dl of the switching mechanism W1 is via the contact 9 b in the node office KA and the rotary magnet DZ of the switching mechanism f 'via the contact 112 e. excited in main office HA. Both rear derailleurs carry out a switching step. By closing the contact iood_, the rotary magnet DZ, the relay J = is short-circuited, so (let it open its contact 93 i_ and thereby de-energize the relays B and E; thus the rotary solenoids Dl and DZ are also de-energized again. The contact ioodz becomes reopened so that the relay J = responds again and initiates a further switching of the switching mechanisms W, and W_ after influencing the relays B and E. This synchronous switching of the switching mechanisms works, provided the selector alarm (contact 37011 closed) still exists, so long ahead of you, until the switching arm a2 of the switching mechanism WZ in the main office HA and the switching arm a, of the switching mechanism W, in the sub-office UA reach the contacts 4. Then a circuit is established with the following course: earth, battery, resistor Wie, contact 37v11, Switching arm a1 on contact 4, contacts 84 ara, 86p, a wire of the connecting line VL, contact 88 v2, switching arm a2 on contact 4, 4th ST I, winding I of relay P2, earth. Relay P2 speaks and puts itself on its contacts 99p2 and ioi p1 with its winding II in a holding circuit. The relays t'_ and J2 are deenergized by opening the contact 98p2. Opening contact 934 prevents further switching as long as the surveillance officer keeps the search button (P2 excited) pressed. By closing the contact iiov, the relay Al. energized via the contact 4 reached by the switching arm b2; it switches on again via its contact 12oal, the signal lamp AL. - From this, the surveillance officer recognizes that the voter alarm is still present, i.e. that there is actually a malfunction. After releasing the search button, the winding II of the relay P2 is de-energized, so that now, as above, the switching mechanism W2 is brought into the 0 position. The switchgear W1 has already moved to the 0 position «.

If the voter alarm only existed temporarily, that is to say contact 3u, u should be open during the new movement of the switchgear initiated by the officer, the switchgear does not come to a standstill on contact e; they continue to rotate until contact 9. In this case, the winding I of the relay P2 is then excited via contact 9, switching arm a2, a-wire of the connecting line t% 1.2, resistor W19, battery, o -earth. The signal lamp FL is switched on via the contact iii p2 and the switching arm b2 of the switching mechanism W2, so that it lights up and indicates to the officer that the switching mechanisms have been circulated once. From this she realizes that the voter alarm has meanwhile disappeared. As indicated above, the switching mechanisms return to the 0 position.

If it is a matter of systems in which the synchronous setting of the switching mechanisms can easily be disturbed by external influences, this lack of repetition is not yet a satisfactory feature that the alarm has disappeared. A repetition can then e.g. B. not be done because the switching mechanisms have fallen out of step and thus the switching arms cal and a :, in the present case do not reach the fourth contact at the same time. If this is a risk, the surveillance officer can delete all malfunction reports. To do this, she presses the eject button (AbwT I, II) in the rest position of the switchgear. This creates the following circuit after energizing relay T12: earth, battery, relay U, winding II of relay f11, switching arm a1 on contact 0, contacts 84 on, 86p1, a-wire of the connecting line VL2, contact 88v2, switching arm a2 on contact 0, discard button AbwT I, earth. Relays U and V1 respond in this circuit. By opening the contacts? With and 3 i zt, all relays (Eltufi-f'la.it, EhklWlik), which may have stored a fault message, are de-energized. All existing fault reports in the node office KA or sub-office UA are thereby deleted. Are the numnehr deleted faults still exist, they are now reported in succession in the manner described above, once the main office HA, so that the monitoring officer now properly recognizes the correctness of the first message from the relighting of the same signal lamps. In the same way, this arrangement can also be used if, during the test, as a result of the switching mechanism being stepped out, another fault is displayed instead of the fault reported first.

As the derailleurs can be seen from the previous illustration of the synchronous setting, wherein a fault message to the main office HA is the switching mechanism which is in the gateway exchange KA W 1, while, when making the return control which is in the Main Office HA derailleur W2 is the driving switching mechanism, the driving switching device. One can of course make the arrangement so that in the latter case too, the switching mechanism TV, in the node office KA, is the driving switching mechanism. In this case, the switching elements shown in dashed lines are to be inserted into the exemplary embodiment. As usual, the relays T12 and T2 are energized by pressing the corresponding search button. After the contact 88v2 is closed, the relay T11 is excited via the a. Wire of the connecting line L'L2. The relay L'1 closes a circuit for the winding II of the relay C via its contact 123 v1. Here, the contact 4i v1 is bridged by the contact 1294c, so that after the contact 37e is closed, the relay h 'is excited and via its contact 76k actuates relay T1. As when reporting a malfunction, the contact 8o i1 now gives current impulses via the b-AderderVerbindungsleiteng VL1, so that the relay E is actuated in the main office HA and accordingly causes the switching mechanism W2 in the main office HA to switch. The switching mechanism ff ,, is switched on via contact ioi1. Both switching mechanisms are switched on until both switching mechanisms with their switching arms a and a2 have reached the contact that corresponds to the pressed search button. In this case, the relays P1 and P2 are energized, which cause the switchgear to be shut down and, as explained above, bring about a fault report in the main office HA. All further processes then proceed in a corresponding manner.

The above-described possibility of checking by pressing the corresponding search button offers the advantage of checking each fault message individually, regardless of how many messages are present, in any order. It is still possible if there is any suspicion that z. B. as a result of the switching mechanisms in the main office HA being out of action, other faults are reported instead of the actually existing faults, the entire fault report to be carried out again after deletion in the reporting office. In many cases this avoids the unnecessary dispatch of surveillance personnel to the disturbed office.

Should a ground fault occur on the a-wire of the connection line f1L2 while the system is in rest, this will actuate the relay A in the main office HA and the relay fjl in the note office KA. Each formwork is moved forward by one switching step. There is no further switching. Because of the permanent excitation of relay A in main office HA via the earth connection on the a-wire, relays B and E are kept continuously energized via the b-wire, so that after some time in Hauptaint I-IA via contact 1o5 c : the relay II. and in the node office KA via the contact 33 b the relay TI, are excited. They prevent any further influence on the rotary magnet Dl (81t1) and the rotary magnet D_> (i 131t.); these rotary magnets also do not remain energized during this time. In addition, the permanent excitation of relay A via contact io8a. after influencing a delay device 1'1s a signal lamp _-1, I_ switched on, which indicates the earth fault.

Claims (7)

PATENT CLAIMS: i. Circuit arrangement for reporting faults from one Exchange to another exchange through synchronous setting from switching mechanisms arranged in the reporting and the other exchange in remote control systems,. in particular telephone systems, characterized in that that i - alas, reporting a malfunction to the other exchange through the switchgear (1,1'1 f'2) Switching devices (Elttrjil'lttt, Ehkjll`lt-k) in the reporting exchange actuated «, which serves to set the switchgear by canceling the Incentives make the identification of the disruption ineffective to the extent that a repeated one automatic notification of the same fault from the reporting center from prevents, however, in the other exchange a repetition of the same fault message by manually operated according to the reported fault Switching means (ST) caused by repeated synchronous adjustment of the switching mechanisms if the reported fault still exists. 2. Circuit arrangement hach claim i, characterized in that when a fault occurs in the reporting exchange influenced switching means (Eitiil'tt, El "'II'k) an incentive for synchronous adjustment of the switching mechanisms and an identification of the fault in your in the reporting Switching center arranged switchgear (IV,) both for automatic reporting as well as to repeat the same under the influx ', the switching means (ST) in the other exchange. 3. Circuit arrangement according to claim 2, characterized in that the switching devices to be actuated after the fault has been reported (Ektt'Il'Irtt, Iatkfrll'lr @ :) when setting the rear derailleurs according to the automatic Marking that serves the purpose of reporting effective «- earth and the incentive as well as its actuation Cancel the marking that triggered the automatic fault report. .l. Circuit arrangement according to Claim 2, characterized in that when the switching means (ST) in the other switching center is operated in accordance with the reported fault, an identification circuit corresponding to the reported fault is prepared in the switching mechanism of this switching center, which, if the switching mechanisms are set to match, by the for Repetition of the malfunction report in your switchgear of the reporting exchange is closed. Circuit arrangement according to Claim 4, characterized in that switching devices (P_) in the other switching center are wirl.sain in the identification circuit, "-which switch on a signal corresponding to the already reported fault (AL., Etc.). 6. Circuit arrangement according to claim 5, characterized in that when disappearing after the fault has been reported, the marking used to repeat the same is canceled, so that with the same setting of the switching mechanisms of the identification circuit is not closed. 7. Circuit arrangement according to claim 6, characterized in that that the switching devices (P =) in the other exchange when disappearing the fault in a particular position (g) of the switching mechanisms Circuit become effective and switch on a special signal (FL). B. Circuit arrangement according to claim i, characterized in that in the other exchange in addition to the switching means (ST) used to repeat the reported fault are further i switching means (Abzt, 7) are provided, when actuated in the reporting network further switching means (U) are influenced, which by ineffective disabling of the switching devices (EhzcrWlrtt, Ehkill'hk) all fault messages in this exchange delete and initiate their repeated transmission to the other exchange. G. Circuit arrangement according to Claim i, characterized. that for the purpose of synchronous setting of the switchgear, the generation of surges in the event of a fault through the switching mechanism of the reporting exchange and when the reinforcement message is repeated by the switching unit of the other exchange. ok Circuit arrangement according to claim i, characterized in that for the purpose of synchronous adjustment of the switching mechanisms the generation of surges in the event of a fault message and repetition "of the same by the Switching mechanism of the reporting exchange takes place.