DE602926C - Circuit arrangement for counting connections of different values in telephone systems - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
SEPTEMBER 22, 1934

REICH PATENT OFFICE

PATENT LETTERING

JVI 602926 CLASS 21a ³ GROUP 75

Patented in the German Empire on September 12, 1926

The present invention relates to a circuit arrangement for counting different values Connections in telephone systems, in which an officer has the Auf-S construction of high-quality voice connections both after the calling party and after the person to be called Connection line "leads out. With such connections, the charges offset in such a way that the officer

to which has established a high-quality connection, after the end of the conversation, the duration and thus also the fee for the conversation is noted on a piece of paper.
By the present invention, this slip calculation is now saved, in such a way that switching devices one of the officer at. Establishment of high-quality speech connections to the calling party influenced by connecting devices sent from the office of this officer using the switching means (current pulse transmitter, button, dial) that are also used to set up the connections, operated in such a way that a counter for the connection line requesting the connection is activated according to the value of the connection is advanced.

The figures show exemplary embodiments of the present invention. 1 and 2 show an arrangement for setting up a connection from the remote office location. 3 and 4 are further embodiments of the meter arrangement at the subscriber station and the arrangement on the line selector _{for local and long-distance traffic OFLW 2} for receiving the power surges that occur at the end of a conversation by the remote officer to forward the counter of that subscriber who has the Connection wished to be sent out by means of a surge transmitter. In Fig. 5, an embodiment of the inventive concept for long-distance traffic is shown via a control cabinet.

It is assumed that the subscriber ΝΊ (Fig. 1 ) wants a long distance call with the subscriber N ₂ (Fig. 2). For this purpose, the subscriber N ₁ calls the so-called liaison officer, who forwards the remote call to the remote office station FP . _{The remote operator calls the desired subscriber JV 2} by dialing a specific number, consisting of four digits in the exemplary embodiment. The remote preselector FVW ₁ , the remote group selector FGW ₁ , the second group selector II. GW ₁ and the line selector LW _{1 are} set in a known manner. If the subscriber Af _{2 is} free, the remote officer establishes the connection to the subscriber N ₁ who wishes to make the remote call. Does the

*) The patent seeker stated as the inventor:

Max Langer in Berlin-Hermsdorf.

Subscriber N ₂ a local call, then the remote clerk switches to the existing line and informs subscriber N ₂ that he has a long-distance call. Subscriber N ₂ interrupts his local call to take the long distance call.

The remote operator now calls the subscriber N ₁ who wants the long-distance call. To establish this connection, the officer leads the plug Sf of a free cord circuit into a free multiple pawl, e.g. B. VKL, a. This causes the indicated in Fig. 2 Fernvorwähler FVW ₂ is started and has a free group selector I. FGW _2. After flipping a switch WS , the officer operated her dial, of which only the contacts 1 n, ^2S u 3- ^ 2 are shown. By the first number current impulse row of the remote group selector I. FGW _{2 is} set in a known manner, which a free downstream voter, z. B. the group voter II. FGW ₂ , selects in free choice. In this, the winding I of the relay C is excited via the test line c, which produces a holding circuit for its winding II by closing the contact 4 c.

When the remote officer sends out the next series of impulses, the relay A is energized intermittently _{by closing the contact 2S 1} with each current impulse via the plug St, latch VKL, line a, contact 5 p, relay A, battery, earth. This passes the current surges picked up on to the lifting magnet, which is not shown in the figure. The lifting magnet sets the remote group selector to the desired contact row. The rotary magnet (not shown in the figure) rotates until the group selector finds a free line selector for local and long-distance traffic.

In our exemplary embodiment, it is assumed that the local trunk line _{selector OFLW 2 is} free and is occupied by the remote group selector ILFGW ₂ . Here the relay P of the remote group selector ILFGW ₂ responds via earth, relay / ³ , contact ηc, contact arm of the remote group selector, relay C ₁ , contact arm II in position 1 of the control switch, battery, earth and occupies the line selector OFLW ₂ . By opening contacts $ p and gp , relays A and B of remote group selector II. FGW _{2 are} switched off from lines α and b and lines α and b are switched through via contacts 6 p and 8p to local remote line _{selector OFLW 2} . Relay C ₁ of line selector OFLW _{2 also} responds in this circuit and is placed in a holding _{circuit via contact 1Oc 1.}

When the remote officer sends out the next series of impulses, closing contact 2J ₁ with each impulse via plug St, multiple latch VKL, line a, contact 6 p, switching arm of remote group selector II. FGW ₂ , contact arm III in position 1 of the control switch, windings I and II of relay A ₁ , battery, earth, relay A ₁ energized intermittently. This forwards the recorded series of current impulses via the contact Ha ₁ to the lifting magnet H , which sets the line selector OFLW ₂ to the desired series of contacts. After the end of the series of impulses, the contact 1 n at the remote place FP is opened, whereby the relay B ₁ , which after occupancy of the local long- _{distance line selector OFLW 2} in 'the circle: earth, battery, contact 1 n, contact of the switch WS, line b, switching arm of the preselector FVW ₂ and the group selector LFGW _2, 8p contact, shifting of the remote group selector ILFGW _2, contact arm IV was energized in position 1 of the control switch, coils I and II of the relay B _1, earth, is made to fall. By closing the contact 16 b _± the switching magnet S of the control switch is energized in the circuit: earth, contact _{x6b lt} contact arm I in position 1 of the control switch, head contact 17 k, control switch magnet S, battery, earth, so that the control switch moves from position 1 to Position 2 advances. When the remote officer sends out the next series of current surges, the current surges are _{transmitted through contact 18 O 1} to rotary magnet D , which sets line selector OFLW ₂ in the set contact series to the desired contact. During this series of current impulses, the relay B ₁ is energized in the circuits described above. After the end of the series of impulses, relay B ₁ drops out and switches the control switch by energizing its magnet 6 ¹ in the circuit: earth, battery, switching magnet S, shaft contact 19 w , contact arm I in position 2 of the control switch, contact 16O ₁ , earth from position 2 after position 3. The relay ^ now also drops out because the control switch has left position 2. Immediately after dialing, voltage is applied to the outgoing α line for a short time via contact 3 S _2. As a result, in line selector OFLW ₂ in position 3 of the control switch, the relay / in the circuit: 'Earth, battery, contact 3 S ₂ , contact of switch WS, plug St, line a, preselector FVW ₂ , group selector LFGW ₂ , contact 6p, Winding I of relay J, contact arm III in position 3, energizes earth and places itself in a holding circuit via earth, battery ,. Winding II of relay J ₁ contact 20 i, relay T, contact 21 C ₁ ,

Earth. The winding III of the relay J _1, which has only a small number of turns, counteracts the other two windings. If, in position 3 of the control switch, winding III of the relay / is placed in a circuit that runs via earth, contact 2.21, contact arm II in control switch position 3, winding III of relay J ₁ battery, earth, the relay / is prevented from responding unintentionally , if the winding I of the relay J lying on the line α , when the control switch moves from position 2 to position 3, a short current surge via earth, contact arm III in control switch position 3, winding I of relay J, a-line, contact arm III in control switch position 2, windings I and II of relay A ₁ , battery, earth receives. Due to the low number of ampere-turns of winding III of the relay / this winding alone cannot operate the relay. The control switch moves from position 3 by energizing its switching magnet S in the circuit: earth, battery, switching magnet S, contact arm I in position 3 of the control switch, earth after position 4. In position 4 of the control switch, the connection line wishing for the remote connection is checked with the aid of relay T. It is assumed that a group number has been selected. After dialing, the multiple contact 24111k is closed. If in this case the control switch has reached the test position 4 and the relay T does not respond as a result of its occupied line, the relay A _{1 is} again via earth, contacts 25O ₁ , 26 ^ ₁ , 28 /, 24mA, contact arm III energized in control switch position 4, windings I and II of relay A ₁ , battery, earth, so that the rotary magnet D in turn, in the circuit: earth, contact 181O ₁ , contact arm V in control switch position 4, rotary magnet D, battery, earth is excited and the switching arms of the local long- _{distance line selector OFLJV 2} are advanced by one contact. The relay A ₁ is short-circuited by the contact 2g d of the rotary magnet D so that it drops out and separates the excitation circuit of the rotary magnet D by opening the contact 1Sa ₁ . This interplay between relay A ₁ and rotary magnet D continues until the relay T responds via the c-wire of a free or occupied connection or the multiple contact 24mk has been completely traversed.

In position 4 of the control switch, the selected connection line is released checked. A distinction must be made between the following cases:

i. The selected participant is free. In this case, the following current branching occurs: earth, battery, position ο of the switching arm (I ₁ of preselector OFVW ₂ , windings I and II of relay T _{1 of} the preselector (parallel to winding II of relay T ₁ , counter Z), line C ₁ , shifting of the local telephone line selector contact IV in position 4 of the control switch, contact 20 i, relay T, contact 2Ic _1, earth and: in the earth, battery, WicklungII i of the relay / Kontakt20, relay T, contact 21C _1, earth. The mentioned circuit respond accordingly to the relay T ₁ in the local long- _{distance line selector OFVW 2.} The meter Z cannot respond because it receives too little power. The relay T in the local long- _{distance line selector OFLW 2} could not respond in position 3 of the control switch, because it was triggered via the contact arm IV was short-circuited in position 3 of the control switch.

2. The desired subscriber is busy in the outgoing direction. _{The line C 1} leading to the local _# and long-distance selector is de-energized in this case. The relay T in the local long- _{distance line selector OFLW 2} responds via earth, battery, winding II of the relay /, contact 2Oi ", relay T, contact 21 C ₁ , earth.

3. The desired subscriber is busy in the incoming direction. In this case, on contact arm IV in position 4 of the control switch, two circuits that are approximately the same voltage touch each other, namely the circuit: earth, battery, winding II of the relay /, contact 20 i, relay T, contact 21C ₁ , earth and the Circuit: Earth, battery, switching arm (I _{1 of} the local and long- distance line preselector OFVW ₂ ; in position o, winding I and II of relay T ₁ (parallel to winding II of relay T ₁ , counter Z), line C ₁ , switching arm of Local long- _{distance line selector OFLW 2} , winding I of relay P ₁ , contact 30 ^ ₁ , earth in a local and long- distance line selector connected in parallel to the local and long-distance line selector OFLW _2. -The meter does not respond due to a lack of electricity resistors same split in the same ratio. This has the consequence that the current ratios are not affected in both circuits by contact. in the one circuit addresses the relay T as before to, in the other the relay T ₁ remains attracted in the local and long- distance feeder OFVW and the relay P ₁ in a local and long-distance selector connected in parallel, so that the existing local connection is not affected.

4. The subscriber you want is remote. On the outgoing line C ₁ is un-. indirectly earth, namely in a local long-distance line selector from earth connected in parallel _{to the OFLW 2 local long-distance line selector}

Contacts 331, 32 g, contact arm II in position 9 of the control switch, switching arm c of a local and long-distance line selector line C ₁ connected in parallel. The test relay T of the OFLW ₂ local line selector is therefore short-circuited and cannot respond. If the desired participant is remote-manned, the control switch remains in position 4 of the control switch, contact 3Oa ₁ , earth after it has left position 4 due to the excitation of the switching magnet S via earth, battery, switching magnet S, contact 3 5 m, switching arm I , are in position 5, as the relay T cannot respond. In this case, the long-distance officer receives a buzzer signal via earth, winding III of relay A ₁ , winding III of relay B ₁ , contact arm III in position 5 of the control switch, winding I of transmission U ₁ , earth. The busy signal is inductively transmitted to winding I of transformer U ₁ through winding II of transformer U ₁ .

If the desired subscriber line is free, "5 the relay T is energized in positions 4 and 5 of the control switch, so that the control switch is switched from position 5 to position 6 because its switching magnet S is in the circuit: earth, contact 37O ₁ , Contact arm I in control switch position 5, contact 38 1, solenoid 6 ", battery, earth is energized. The relay T remains in the circuit: earth, battery, winding II of relay 7, contact 20 i, relay T ₁ contact 2Ic ₁ There is now a voice connection between the remote official and subscriber N ₁ , which is used to inform a subscriber speaking in local traffic of the existence of a remote connection. This voice connection runs from the contact spring 1 of the connecting pawl VKL via the preselector FVW ₂ , the group selector /. FGW ₂ and II. FGW ₂ , capacitors .K ₁ and K ₃ , contact 39 1, switching arm of the local long-distance line _{selector OFLW 2} , line U ₁ , subscriber N ₁ , line b _{according to} Scha ltarm of the local long- _{distance line selector OFLW 2} , contact 44 1, capacitors K ₁ and K ₂ , group selector //. FGW ₂ and /. FGW ₂ , preselector FVW ₂ , line b, contact spring 2 of the connecting pawl VKL and from here via the interrogation device, not shown, of the remote officer to the contact spring 1 of the connecting pawl VKL. The control switch remains in position 6 while the long-distance call is being prepared. So that the subscriber N _{1 is} not blocked for local traffic during this time, the switching arm c of the local trunk line _{selector OFLW 2} remains isolated. The subscriber can therefore both call and be called. But since it is also accessible to a second female officer, before the first female officer switches through the remote connection from subscriber N ₁ , it must be checked whether his connection line has not been seized by a second officer in the meantime. The process is as follows: With the help of a switchboard arrangement, not shown in the drawing, which is connected to the officer seat FF , the a- and fe-line leading to the voters is grounded. In the local long-distance line selector, relay Q responds via the grounded α-line, relay Q, contact arm V in control switch position 6, contact 49 O ₁ , battery, earth. Q via the contact 76, the relay T in the circle: earth contact 76 q, contact IV shorted control switch position 6, contact 2OtV, relay T, contact 21C _1, Earth. The relay T drops out and switches the control switch by energizing its switching magnet S in the circuit: earth, battery, switching magnet S, contact arm I in position 6 of the control switch, contacts τ Sq, i4-i, 13t, IZb ₁ , earth from position 6 continue after position 7. In this position, the connection line is checked for free or busy in the same way as in position 4 of the control switch. If the connection line is occupied remotely, the relay T does not respond and the control switch remains in position 7 until the local trunk line _{selector OFLW 2 is} triggered by the remote office or the requested subscriber is free. The remote official now receives a busy signal via the contact arm III in position 7 of the control switch.

If the connection line is free or occupied, the relay T responds, as already described, and brings the control switch to position 8 by moving the switching magnet .S "via earth, battery, switching magnet 5, contact 38 1, contact arm I to position 7 of the control switch, contact 37b _1; earth is energized. Switching the control switch to position 9 depends on the response of relay P ₁ , which is in position 8 of the control switch with its two windings on line C _1. Relay P ₁ responds when the subscriber is free. In this case, the control switch moves over position 8 to position 9 without stopping because the switching magnet S is in control switch position 8, contact 59 P via earth, battery, switching magnet S, contact arm I ₁ , earth is excited .. If, on the other hand, subscriber N _{1 was} occupied, relay P ₁ initially does not respond, so that the control switch remains in position 8. During this time, the two conductors ungen α and b earth applied, namely to the ß-line via earth, contacts

4i b _u 4Op ₁ , contact arm III in control switch position 8, contact 391t and to the fr line via earth, contact arm IV in control switch position 8, contact 44 f. This triggers the existing local connection. The voice lines remain earthed until the release is complete. Only after triggering the relay P ₁ addresses in the local pipeline voters' OFLW ₂ and brings the control switch on the already described way to position 9. In position 9, the relay / \ re-energized, because on Earth, contacts 331, 32 q , Contact arm Il is short-circuited in control switch position 9. The direct earthing of the switching arm c of the local trunk line _{selector OFLW 2} . serves to make the connection line of subscriber 2V ₁ remotely occupied.

In position 9 of the control switch, the subscriber is connected to the remote office in such a way that that he can be monitored and called any number of times at any time.

By moving a call switch provided at the remote station FP , not shown in the drawing, the α and fr lines are grounded, so that the relay Q and then the relay G are energized. The excitation circuit of relay Q runs via the earthed α-line, relay Q, contact arm V in position 9 of the control switch, contact 49%, battery, earth. The excitation circuit of relay G runs via a grounded fr line, contact 50 g, 68 m, relay G, battery, earth. When relay G responds, ringing current is fed into the connection line via earth, battery, call power source S ₁ , contact 43g, contact arm III in position 9 of the control switch , contact 39 t, line _{O 1} , subscriber N ₁ , line b _u contacts 44 t, 45 g ·, earth sent.

If subscriber N ₁ answers, it is supplied via earth, battery, winding II of relay ^, contact 42 g (relays Q and G are de-energized again after the call switch is turned to the rest position), contact arm III in control switch position 9 , Contact 39 1, switching arm of the local long- distance _{line selector OFLW 2} , line O ₁ , subscriber N ₁ , line b _u switching arm of the local long- _{distance line selector OFLW 2} , contact 44 1, switching arm IV in control switch position 9, winding II of relay B ₁ , earth.

After the long-distance call has ended, the long-distance officer receives a final signal in a known manner so that she can initiate the count for the long-distance call that has come about. Depending on the value of the long-distance call, the officer will send out a series of power surges. By actuating the impulse transmitter at the remote station FP, the relay Q receives current impulses via earth, contact 2S ₁ , switch WS, plug St, connecting pawl VKL, α-line, preselector. / ⁷ FfF ₂ , group selector I. FGW ₂ and ILFGW ₂ , contact 6p, relay Q, switch arm V in control switch position 9, contact 49 O ₁ , battery, earth. As a result, relay Q is energized intermittently and closes via earth, battery (120 volts), resistor, contacts 521, 31g, switch arm II in control switch position 9, switch arm of the local long-distance line _{selector OFLW 2} , line C ₁ , counter Z (parallel winding II of relay T ₁ ), Winding I of the ReMsT ₁ , di-arm of the preselector OFVW ₂ , battery, earth for the counter Z of the subscriber N ₁ who requested the remote connection, depending on the value of the connection one or more times the circuit. In this circuit, the batteries of 60 and 120 volts are connected in series so that the counter Z in this circuit can respond at a voltage of 180 volts.

The remote officer now pulls the connecting plug St from the multiple latch VKL. This places line c in the remote group selector /. FGW ₂ , de-energized, and all group selectors are triggered one after the other in a known manner. As soon as the line c is disconnected _{in the last group selector ILFGW 2} , the relays C ₁ , J and T in the local long- _{distance line selector OFLW 2 are} de-energized. "The switching magnet S is energized via earth, battery, SchaltmagnetvS", contact arm I in control switch position 9, contact 62 i, earth, so that the control switch goes to position 10. In position 10, the release magnet M of the local long- _{distance line selector OFLW 2 is} via earth, battery , tripping magnet M, contact I excited in control switch position 10, contacts 53 ^c i> 54 ^ 5Sb _1, earth. the local telephone line selector OFLW ₂ is activated after closing of the top contact 57 of the rest position k in achieving the local telephone line selector OFLW _2. when the solenoid S to earth , Battery, switching magnet S, head contact 57 &, switching arm I in control switch position 10, contacts 53C ₁ , 54i, SSo ₁ , earth energized 'in which the circuits: earth, battery, solenoid S, contact arm I in control switch position 11, slow interrupter L ₁ earth is energized the solenoid S is energized via earth, battery, solenoid 6 ", contact 65 C ₁ , contact arm I in control switch position 12, contacts 66 t, 6 ^ b ₁ , earth. By energizing the switching magnet S via earth, battery, switching magnet S, contact 35 u, contact arm I in control switch position 13, contacts 3Oa ₁ ,

Earth, the control switch is switched from position 13 to position 14. The control switch moves from position 14 to position 15, and the switching magnet 5 receives its excitation current via earth, battery; Switching magnet 5, contact arm I in control switch position 14, contact 58%, earth. From this position the control switch comes to position 16 by energizing the switching magnet 6 ¹ via earth, battery, switching magnet S, contact 352 ″, contact arm I in control switch position 15, contact 361A ₁ , earth. From here, the control switch goes by energizing its switching magnet via earth, contact 5Oc ₁ , contact arm I in control switch position 16, head contact 57 ft, switching magnet vS ", battery, earth in its rest position i.

FIGS. 3 and 4 show further arrangements of the meter Z in the local long- _{distance line selector OFLW 2} . As in Fig. 1, the relay Q in Fig. 3 is also energized intermittently by sending out the counting current surges from the remote office station FP . The counting current impulses are transmitted to the counter Z of the subscriber N ₁ via earth, battery, resistor Wi, contacts 521, 78 g, contact arm IV in control switch position 9, contact 44 *, switching arm of the local long- _{distance line selector OFLW 2.} , Line b _x , contact 71 1, Counter Z, earth transferred. The counter of the subscriber N ₁ is incremented depending on the value of the connection established. The counter Z cannot respond if part of the feed current for the subscriber N _{1 flows} through its winding because the current strength is too low.

In Fig. 4 the relay Q is activated in the same way that the counting current impulses are excited as in Figs. 1 and 3.

The metering current surges are transmitted to meter Z of subscriber N ₁ in the following way: earth, battery, resistor Wi, contacts 52 i, J% q, contact arm IV in control switch position 9, contact 44 1, switching arm of the local long-distance _{line selector OPLW 2} , line O ₁ , Winding II of the counter Z ₁ earth. The counter of the subscriber N ₁ is incremented depending on the value of the long-distance connection established. In this case, too, the counter Z cannot respond if part of the supply current flows through its winding.

If the subscriber N ₁ in FIG. 1 is called by a subscriber in his own office, ie if a local call is being made, the subscriber's counter Z must not respond. In position 4 of the control switch, meter Z receives power via earth, contact 341, contact arm II in control switch position 4, winding I and II of ReIaIsP ₁ , c-arm of local long-distance line _{selector OFLW 2} , line C ₁ , meter Z (parallel winding II of the relay T ₁ ), winding I of relay T ₁ , switching arm d _± of preselector OFVW ₂ , battery, earth. However, the counter Z cannot respond due to the low current strength.

Fig. 5 shows an embodiment of the invention in which the remote connection is established via a control cabinet. Assuming that the subscriber wishes ₁ N a remote connection with the subscriber N _2, it calls the Vorschaltebeamtin on \ ^A orschalteschrank VSCM. The supervisory officer forwards the request of participant N ₁ to the remote officer at work station FP ₁ . This remote officer now establishes the connection to the remote officer at the remote station FP ₂ , who in turn establishes a connection to the remote officer at the remote station VScH ₂ . This pre-eminent officer now establishes a connection to subscriber N ₂ . If the subscriber N _{2 is} free for a connection, the remote officer at the remote station FP ₁ informs the subscriber N ₁ that he can start his conversation with the subscriber N ₂ . After the end of the conversation, the remote officer at the remote station FP ₁ then counts the connection according to the invention according to the value of the connection. By pressing the counting key Z at the remote station FP ₁ , the relay Q at the upstream station VSchi is energized according to the series of impulses sent by the remote operator. The counting current surges are transmitted to the counter Z of the subscriber N ₁ in the following way: earth, battery (120 volts), contacts ig, ^ p ₁ winding I of relay P, test wire c, counter Z (parallel winding II of relay T), Winding I of relay T, contact 4? * (Of a call relay, not shown), battery, earth. The relay P at the upstream location VSchl is already energized from the moment the upstream officer establishes the connection to the subscriber N ₁ , namely the excitation circuit runs via earth, windings I and II of relay P, test wire c, winding II of the relay T (parallel to this, counter Z), winding I of relay T, contact 4.7, battery, earth. In this circuit, the counter Z cannot respond at first. It is only excited when, instead of earth, the 120 volt battery is applied via contact 2q in accordance with the current impulses sent by the remote operator at remote station FP _1.

Claims (3)

Patent claims: i. Circuit arrangement for counting connections of different values in Telephone systems in which an officer sets up high-quality voice connections conducts both to the calling line and to the line to be called, characterized in that that switching devices one of the officer when setting up high quality voice connections after the calling side, the connection set-up was influenced by this officer’s workplace The transmitted current impulses are also used to establish the connections Switching means (impulse transmitter, button, dial) are operated in such a way that a counter of the connection desired connection line is advanced according to the value of the connection. 2. Circuit arrangement according to claim i, characterized in that as Switching device for incrementing the counter for other purposes (e.g. for Test initiation) serving relay of the number surge receiver is used. 3. A circuit arrangement according to claim i, characterized in that the switching devices operate the same counter which is effective in a manner known per se when making low-order connections on the part of this subscriber station. For this purpose 2 sheets of drawings