SU15632A1 - Intercity telephone station - Google Patents

Description

In large intercity stations, the location of all long-distance and local transmission stations in multiple locations passing through all work centers is impracticable. In the same way, as a multiple field of a local station is transferred to auxiliary points (pre-distribution stations) that transmit from an intercity station to a local station, with the proposed method of switching on, a multiple far-field field is concentrated on the auxiliary (intermediate) work points, which ocyni; ecT is transmission within a long-distance network. The fixtures of the cord joint used so far make maintenance much more difficult, as it is necessary to establish a free connecting line to the auxiliary work points B by repeated testing. With the proposed inclusion, a multiple field of interconnecting LINES is also transmitted from distant stations to auxiliary

In other words, a device with selectors is used, which, in addition to painful maintenance, offers the advantage of being more economical than a multiple field of transmissions. Each long-distance transmission line is primarily water supply through the contacts of the relay and, corresponding to the kangda of such a LINE, to the remote station, while the working contacts of these relays have multiple slots FKc 1 of the long-distance transmission line, which are located at intermediate points without amplifiers. From the FKv 1 socket, the long-distance line leads to the extension cable L V through working contacts at the R e R 3, which at intermediate stations with an amplifier is intended for the multiple field FAr 2 of each of the far lines. In the eye state, the long-distance transmission is turned on at the far station. When a call back signal is received, the telephonist turns on YOUR device for polling and takes the required connection. After that, it activates the K O T button, due to which the long-distance transmission line switches to the group selector through the next one. Depending on the type of connection required, a long distance telephonist using a number washer lifts the group selector to the required decade (ten times X as separate connecting points, as well as a pre-distribution station for transmissions from a distant station to local subscribers, or an intermediate station for long-distance interconnection, correspond to certain decades. In the required decade, then a free connecting cord at the auxiliary work center is selected in the usual way. Through the established connection, the long-distance telephone operator conspires with the operator of the auxiliary station and prompts her to make further connection. Supervision of the established connection is made, however, the remote station operator does not only apply to changes in the state of the long-distance transmission lines themselves, such as ringing and ending signals, but the telephonist is also aware of what state the connection is in at the auxiliary point. When connected to intermediate points with transmissions conducted through amplifiers, the reverse, the long-distance transmission line is directly connected to the intermediate point with an amplifier, in order to avoid attenuation during the passage of current above the distant station. The connection to the intermediate station with an amplifier, established by the telephonist of the remote station, serves in this case for transmitting the control signals of the long-distance connection at the remote station and for controlling the remote station with a relay device for further calling at the amplifying station.

The proposed switching scheme enables the telephonist to monitor the following connections made by her: 1) long-distance incoming line, -far station, distribution wiring to the local station; 2) incoming long-distance transmission line, –– distant station, connecting wiring to an intermediate station, –multiple long-distance transmission field, –a departing line; 3) long-distance incoming line, -multiple field of long-distance transmission at an intermediate station with an amplifier, a descending line.

In FIG. 1 shows the layout of the electrical connections: FIG. 2 is a circuit for passing current at a long-distance station; FIG. 3 is a current passing circuit at an intermediate station with intermediate amplifiers; FIG. 4 diagram of the passage of current from an intermediate (transmission) station without amplifiers; FIG. 5 is a flow diagram of a current in a pre-distribution system; FIG. 6-- current flow pattern at the collection point.

From the diagram in FIG. 1 shows the entire switching device. The distant transmission lines at the far station are in a call position. The number of long-distance transmission lines serviced from one distant station depends on the conditions of the communication, as well as the total number: about distant stations. For each distant station, there are a number of connecting wires KO terminating at. group selector G W, which, by means of K O G buttons at distant stations, can be connected to long-distance transmission lines. From each contact socket of the voters there is a certain amount of wires to the auxiliary work points. Voters can, at discretion, be installed from distant stations, so that it is possible to connect a long-distance line using K O T buttons, optionally, with .h; any auxiliary station.

Intermediate stations (Figs. 3 and 4) carry out long-distance communications with translation, between ;; In this case, through an auxiliary work center (Fig. 5), a relationship is established between the far station and the local subscriber. 4ept) c. an intermediate station (Fig. 4) establishes an intercourse with a translation without amplification: Itel, while in an intermediate stanp; and x (Fig. 3), connections are established with a translation through the cord amplifiers.

during the period of rare bargaining, the transmission line is included at the assembly point (Fig. 6). Just as on the pre-distribution site of FIG. 5) there is a multiple subscriber field, the far lines are switched on several times, on intermediate punches with amplifiers (Fig. 3), and many times on intermediate points without amplifiers (Fig. 4), with, however, a single line through relay G intended for each distant line is switched by the corresponding switching means from the far station or from an intermediate point in the intended multiple field.

When the far station calls, the ylSL 1 lamp (Fig 2) flashes. The telephonist serving the distant line shifts the E S II key corresponding to the calling line and begins to act with her interrogator A S. In the reception of the call she presses the corresponding CAT button of the free connecting wire n, using the number plate that she serves. to further transfer of the connection. Using key 7, the telephonist has the ability to talk both ways when switching to disconnection: not, just like with the help of RS keys, she can send calls to both sides.

1. Compound. A long distance transmission line, multiple field of a long distance transmission line at an intermediate station with amplifiers, a long distance transmission of LENIN.

The ringing current passing from the long-distance station excites the winding 1 of the ABS 1 relay in the following order: voltage and rest U 1, winding 1 of relay A RS 1, contact rest U 3, core 1. Relay A RS 1 switches on the working contact "/ , 9 11 its own holding winding 1 in series with ASL 1 lamina, which flashes: - ground, battery, winding 11, relay ARS 1, working contact ars 11, button 5S 13, lamp A SL 1, button ESS, relay k, earth. h To interrogate the subscriber about the number, the telephonist rearranges the switches A S

and E 8 .. The transmission lines in the multiple field of intermediate stations are occupied: - earth, battery, relay R, switch ES 7, lived with, then (fig. 3) rest and contact, winding 1 of relay C 1, land Relays R (FIG. 2) and relays C 1 (FIG. 3) are energized. The relay C 1 leads in operation the optical signal. T1 to occupy the line S X: - ground, battery, protective resistance. S I4, working contact C 12, optical signal. T1 S Z, ground. With the help of the ES switch, relay N L R 2. the call is made: - earth, battery, winding 1 relay D, switching ES S and T 21, winding 1 relay R 2, ground. Relay R 2 with its working contact g 21, includes relay R 1, which closes the s1 next circuit: - ground, battery, resistance W 2. working contact g 21, relay and 1, ground.

Lamp A S L i goes out, as the delay current circuit of the DC winding 11 of the relay A R S 1 is interrupted by the ESS switch. The input line is connected to the telephone operator's questionnaire as follows: - lived, contact rest U 1, switch 11, ES 2, RS 11, T 11, AS 1 and PT I, working contact 12, interrogation device A h /, switches / S 15, A 8 2, T 12. R S13, 7i.S 4, L 12, contact f 3 lived (. The telephone operator interrogates the subscriber and presses the remote driving button To O T, the free wire of the CO. PRP using the AO 7 3 button in a well-known way joins the group selector. The K O T 1 and K O T 2 buttons attach / 1 LINE to: transfer the line to To O. The group selector installs, in the usual way, to the desired tenth current (the passage point of the amplifier) and is occupied by a free usi t1 cord (FNG, 3), where relay A activates: - input cable from the group selector О W , relay A with its winding 1, contact rest x g 1. resistance "4, working contact m g 1, resistance. y g 5, battery, ground. Contact a 4, turns on the lamp A 8 L 2: - ground working contact- a 4, contact d 1 and sr 3, lamp ASL 2, battery, ground. The telephone operator of the amplifying station, for interrogation, has ceased. T1 is the switch A of the nS and connects itself to the wire going from

intercity station through a group selector (wire a b). Relay D excites: - ground, battery, winding 1 relay 1, switch AnS 3, working contact a 4, ground. Dampu goes out. After switching the switch, the AnS relay holds the measles in the following circuit: - ground, battery, winding 11, relay /), working contacts d 2 and 4, ground. As soon as the group selector is busy with a pair of amplifier cords, the telephonist at the ES switch occupied hears continuous noise: - ground, battery, transmitter of the phono signal Su 1, interrupter U Reactor W 5, working contact a 5, rest contacts p 21 and hs 1, conductor b via group selector GW to a distant transmission station (Fig. 2), button K O T 2, working contact A 4, key F1T 3, contact loko e 3, capacitor Co 2, switches AS 2 and RS 15, interrogation device A b f working contact g 12 switches PT 1 and 1, capacitor Co 1, contact e 1, switch and TT I and FLT 1, working contact A 2, button Jf О T 1, lived through a group selector to the amplifier (Fig. 3), contacts rest p 11 and j 23, calling lamp RL, resistance W 6, ground. When the E S 8 key is at rest, i.e. the relay I am disconnected, then the relay S 2 receives the breaker current according to the slave; Orchid path: - ground, battery, transmitter of a phonical signal Su 1, interrupter Un, resistance W 5, working contact a 5, contacts at rest 21 Its Its 1 core b through a group selector to a station of a distant transmission (Fig. 2), CAT button 2, rest terminal A 3, relay 5 2, rest terminal A 1, CAT button 1, force and through the group selector to the amplifier, rest terminal p 11 f p 23, lamp RL, resistance W 6 ground. The SL 2 lamp flashes: - ground, working contact S 21, battery, ground. Turnip C 1 (Fig. 3) is held when switch 5 is at rest, above the / button (O T: - ground, battery, resistance W 1, KOTi BUTTON, lamp BL 1, core s, rest contact U 5, relay C 1 with winding 1, ground. At the amplifying station (Fig. 3), when removing the plug. T1, the relay SK makes a call: - ground, battery, relay S K, plug-in coupling torch St U1

and respectively StU 2, land. The input from the group selector zh1a s switches: -wires from the group sector G W relay A with winding 1, operating: contact U2 2, winding 11 Relay A, double operating contact "1, resistance SW 6, battery, ground. Lamp BL 2 lights up: - ground, battery, resistance 5 W 6, double working contact a 1, lamp B L 2, resistance W 7, working contact sr 5, rest contacts IS and K 1 ground. The telephonist of the broadcasting station first inserts the plug F5 1 into the socket FКк 2 of the long-distance transmission line. Repeat C 2 (FIG. 3) makes a call, however, the relay Z and L 3 cannot act: - ground, battery, relay C 2 and 3, F Kv 2 socket, core with VS 1 plug, working contact d 3, relay / f, land The corresponding incoming line, the signal lamp BL 1 at a long-distance station (Fig. 2) flashes - ground, battery, resistance W 1, CAT button 4, lamp BL 1, lived with to the broadcast station, with amplifier, and the rest contact U 5 relay C 1 with winding 11, C 21 operating contact, Un breaker, ground. The operator of the broadcast station inserts the plug F 5 2 into the socket F K from the required line. A. The long-distance line required is free.

Relay C 2, R 3 JL P 1 make a call: - ground, transmitter, phonetic call Su 2 winding 1 relay P 1, contact rest p 25, working contact d 4, plug VS 2, socket FKo 2, relay R3 and C 2, battery, ground parap.chepno C 2 relays and, contact of rest C 11. resistance SW 4, battery, ground. The relay C 2 closes its measles, as a result of which, at the contact C 22, the long-distance transmission line in the multiple switch is indicated by: - ground, battery: resistance S W 7, working contact C 22, optical signal CZ, .tg. The relay U switches off the line the long-distance line: the station and includes it in the multiple switchboard of the non-amplified broadcast stations. The relay R switches the line through the identification wires IV to the FKv 2 jack of the amplifying station: - lived, working contacts f / 2 and g 31, extension wires IV, FKv 2 socket (springs “and 6), extension wires IV, working contact g 32, contact rest U 4, lived b. The signal lamp / L 1 ua of the station of the required required line shines all the time: - ground, battery, resistance W 8, working contact U 6, lived c, lamp BL pa. long-distance station, CAT 5 button, SS 14 switch, Relay P 1 energizes relay P 2 and HS (Fig. 3), at which the following is closed; value: -land, battery, sonotism SW 8, rest terminal n-g 21 and // 1, working contact p 15, relay P 2 with winding II, zeml. The working contact p 14 includes the relay H S: -grounded, the rest contact Z 1, the working contact p 14, resistance IV 9, rec. I 5, battery, ground. Relay P 1 contact p 25 disconnects and pe.Tie P 2 holds the contact p 26: - earth, relay P 2 with winding 1, working contacts p 26 n d 4, plug VS 2, lived with, socket F K to 2, re e R 3 and (/ 2, battery, earth and in parallel with G 2 relay U, rest contact with 11 resistance 5 W 4, battery, aeml. Relay I S holds relay S 2 at a long-distance station (Fig. 2): - ground, battery, HS relay, working contact hs 2, lived b through group selector G And to a long-distance station, CAT button 2, rest terminal L 3, relay 5 2, contact rest L 1, CAT button 1, lived through group selector GW to the amplifier station, which STD 11, working contact p 24, FL relay, ground, and coupled to FL, WR 2 relay with winding 1, ground SL 2 lamp shines all the time A telephone operator can now switch the incoming wires in a multiple field of a broadcast station. Using a switch 1 7, it frees it by switching over (Fig. 2), so that relay C1 (Fig. 3) is short-circuited as follows: ground 1, switches F T AND ES 7, core s, rest U 5, about: 1 ref 1 relay 1, zeml. The contact (7 11 forces the relay U to act, R 3 and Z in the input wires of the transmission line: - ground, battery, resistance CW 4, contact at rest 11, relay U and / f 3, ziha from the RCK 2 socket, plug T / S 1, working contact d 3, relay Z, ground Relay U with contact and 5 turns off e and Z and contacts and 6 connects the battery to the core of the intercity station. Contacts and 1 and 3 and L branches of the incoming wires are disconnected from the long-distance station and the contacts U 2 l U 4 adventure to a multiple switch. The relay R at the long-distance station (Fig. 2) is cut off and the signal light B LI input u their wires go out: - ground, battery, relay L, switch ES 7, core g, working contact fr6, resistance WS, battery, ground and in parallel with relay R and switch ES 7 lamp BL 1, CAT button 4, resistance Ж 1, battery, ground. With the help of the relay Z, an amplifier is ignited (cathode lamp). The lamp BL 2 at the amplifying station goes out as the circuit is interrupted by contact Z 1 interrupted. With contact Z 2 the relay DR 1 and /) R 2 excite: , working contact Z 2 resistance W 11, relay DR, battery, ground and parallel to them resistance W 12 re.che PI 2, battery, ground. Yes, the transmission lines are drawn up to the speed limit. After switching the ES switch to an intercity station, the HLT relay operates (Fig. 3): - ground, battery, resistance S W 1, contact g 23 resistance W 3, contact rest; 1, key 3, operating contact li 4, CAT button 2. lived b through the group selector G W to the amplifying station, the rest contact A S1, the working contact p 22, the relay I L G, zem.ch. Winding I re.che Wll 1 in the current circuit can not act. The relays R W 1 and 7 W 2 are energized: - earth, working contact lit 1, relay R W 1, battery, earth and pair; relay to relay K 1G 1 relay R U 2, battery, earth. By their working contacts 1 and pg 2 re.che, the wires coming from the group selector and U through the VU translator to the amplifier follow. By activating the F / T switch, the long-distance station can call the telephone operator of the amplifying station and connect to the wire to eliminate the in the amplifier noise. Relay FL (Fig. 3) acts and holds the relay I when you switch back the switch E 5; WR 2 is not yet operational: - earth, FL relay, working contact p 24, contact resting p 11, lived and through the group selector to the long-distance station, CAT button 1,

working contact A 2, key FLT 2, winding II relay I, battery, ground. When the switch E S at long-distance stations is in the rest position, the HLT relay at the amplifying station remains without current, as the current circuit is interrupted at the contact h 4.

By activating the contact / 72, an RL lamp is lit (Fig. 3). Ground, battery, resistance S W S, contact rest wr 21, working contact / 72, keys “5 1 and MS lamp RL, resistance W Q, ground. The telephone operator of the amplifier station now re-switches the AnS or MS switch and excites this RWI TS RW 2 relay, so that it turns on the amplifier station: - ground, working contact Z 3, key A p S 4 relay W W 1, battery, ground and parallel to relay R W1 relay RW 2, battery, zeml. The lamp R L goes out, because k.11yuch A p S is open. By activating the aforementioned key, the relay P1 operates: - ground, battery, resistance S W 8, quiescent contact 21, working contact fl 2, key A p S 2 winding II relay P1, ground. Relay I (Fig. 2) and relay FL (Fig. 3) are opened, as through contact J9 12 a resistance W 10 is connected to the current circuit. At contact / 7 2 the current circuit for winding II relays P 1 is interrupted. The AnS or MS key after the amplifier adjustment is reset. The FLKL lamp (fig. 2) flashes; -land, battery, lamp F L К L, rest contact It 5, key FLT 4, breaker Up, earth. The operator of the far station now switches the key F L T, thanks to which the FLKL lamp goes out and the ES key triggers the call to the desired long-distance wire. With the key and 5 21, the relay E is first excited: - earth, battery, resistance, jS Ж 3, RS 21 switch, relay E, earth. The excitation of the winding II of the relay R 2 is destroyed by the actuation of the contact e 4: earth, battery, resistance W 2, operating contact e 4, winding II, relay B 2, earth. Relay WR 2 (Fig. 3) is valid: - earth, winding 1 relay WR 2, working contact 24, contact resting 11, lived and through a group selector to an intercity station, CAT button 1, working contact A 2, FLTi keys and L5 24 , contact g 22, resistance SW 2, battery, ground, Through contact yes g 24, the relay DR 2 is short-circuited and switched off: - ground, battery, resistance SW 10, working contact go 24, relay DR 2, battery, ground. A call; source of ringing current, working contact 22, rest terminal dr21, plug VS 2, live to the far station, back through core 6, plug VS 2, rest terminal dr 23, working contact wr 23, ringing current source. A long-distance telephone operator speaks by incoming long-distance wires. Differentially coiled winding II of relay R 2 is first energized and then the RS 16 switch is actuated and then turned off; earth, battery, resistance W 2, key KS 16, winding II of relay R 2, earth.11. Contact W 22 now acts as a relay WR I (Fig. 3); - ground, winding I relay WR 1 ,, working contact p 22, contact rest As 1, lived b through a group selector to an intercity station button CAT 2, working contact h 4, key F (t 3, contact contact 1, switch D 15, contact contact 22, resistance SW 2, battery, ground. Relay DR 1 is short-circuited at the contact and: 11 and turns off; - ground, battery, resistance SW 9, working contact gkg 11, relay /) th 1, battery, ground Calling current now also flows in incoming wires of a long-distance transmission; - source of ringing current, working contact No. g 12, contact rest dr 11, plug VS 1, lived to distant station and back through core 6. ikhtepsel VS 1, contact rest dr 13, working contagst 13, ring current source. When the connection is complete, then the ES key is on. relocate the long-distance station back. Since the current circuit at contact L4 is interrupted, the relay (Fig. 3) remains without current. At pin I 1, the current circuit is interrupted by the relays RW 1. and RW 2. The Vv relay is separated from the amplifier. To listen to the conversation, the long distance telephone operator relocates the key E S. Key A S, on the contrary, remains in a quiescent position. Relay R 2 (fig. 2) and relay HLT (fig. 8). act.

After the end of the conversation, distant stations hang up. RRI or RR2 relay

(Fig. 3) are valid; the first excites the relay WR 1 and IIS: - earth, working contact g 11, winding II relay WR 2, relay HS, battery, earth; - earth, working contact g 21, winding II relay WR 1, relay HS; battery Relay WR 2 or WR 1 sends a ringing current to another station. The relay L 2 at a long-distance station delays the re.che HS and the SL 2 champ. It lights up as a signal for the stopping of a conversation. The connection is disconnected by turning off the KOG keys, so that the group selector is disconnected in a known manner. Re.ie A (Fig. 3) is disconnected and interrupts at contact a 4 the current center 11 for relay D, the lamp ignites: - ground, battery, ASL 2 lamp, working contact 4, rest terminal "3, ground." At contact g / 3, the conductor is disconnected from the long-distance transmission line. Z, B, 3, C 2 and If relays are disabled. Current circuit for the relay D R 1 TS. D R 2 is also interrupted at contact Z 2. The long-distance transmission line is free. At contact d 4, the conductor from the required long-distance transmission line is disconnected, whereby relays P 2, 7 3, C 2 and and are disconnected. The long-distance line required is free. Reinforce. The telephone operator of the amplifying station removes both plugs VS and FS 2 from socket FKc 2. The current circuit is interrupted at the "/ 4" terminal and the ASL 2 lamp is extinguished.

B. Required line d.t: yn. Its transmission is occupied.

The telephonist at the interim station learns about the long-distance transmission line via the optical signal SZ belonging to the multiple socket. She tries the wire in the usual way. If the wire is occupied n is not prepared (when testing is not heard a buzz), then the telephone operator of the intermediate station inserts the YS 2 plug into the socket Kg 2 of the occupied wire.

a) A long-distance transmission line at a long-distance station that it calls busy (relay C 1 is energized). By inserting VS 2 plugs into an RC2 socket, C2 relay is energized, while relay P1 is inactive; - ground, phonetic signal transmitter 5th 2, winding I relay P1, rest terminal p 25, working contact d 4, P1tepsel YS 2,

socket FKr, 2, lived e, pe.iie li 3 and C 2, battery, zeml. The BL signal lamp at the long-distance station of the required I wire flashes, indicating that from the interim station the long-distance line j is required: - ground, battery, resistance w 1, button K O T 4, lamp BL 1, I lived, further (Fig. 3) rest contact and 5 winding II relay C 1 working contact C 21, breaker G «, ground. If: a long-distance transmission unit 1 is required at this time by a second intermediate station, the telephone operator of the corresponding long-distance station S. CHYSHIT buzzing with the above-mentioned line readiness test for long-distance switching on: working contact ff 4. plug VS 2, bit the socket F k with 2, plug socket on the station operator. Long-distance transmission line prepared. When the ES key is swapped, the telephone operator at the intermediate station I hears an intermittent buzz until the required j wire is released. If the key is at rest, the 6L 2 lamp blinks. Lamp Bb 2 is lit at the amplifier station as long as the required long-distance transmission line is occupied. The long-distance telephone operator can, if required, call the telephone operator of the amplifying station by interchanging the RS 21 keys and the RL lamp on the amplifying station then light up: - ground, battery, resistance SW 2, rest terminal g 22, keys RS 24 n FLT 1, working contact L 2, CAT button 1, lived through a group sector to the amplifying station, rest contacts p11 p p 23, lamp RL, resistance IF 6, ground. If at a long-distance station: the connection of the occupied wire by means of I removing the button K O T is disconnected, I then relay C 1 (Fig. 3) is disconnected. PeI le P 1, I 3 and and act. The phono.ch in the core of the line is disconnected. The signal lamp BL 2 at the amplifying station is extinguished. The further course of the connection is as described previously.

B) The long-distance line is prepared for the intermediate station to be occupied. The relay P 1 does not work when inserting the plug VS 2 in FKv 2 Gneado, since its winding is shunted by the relay P 2. A phonic signal is located in the sleeve of the FKv 2 and FKv 1 sockets. If the required wire is released by pulling out the cord occupying the wire, then relay P 1 operates, since the shunt to its winding is turned off. The passage through the joint is as described previously. c) The long-distance transmission line is occupied and prepared. Optical signals; The telephonist of the intermediate station is visible when testing the SPY1PIT buzzing, so the connection should not occur in this case. The VS 2 plug is inserted into the "occupied" position, the telephone operator of the long-distance station receives the termination signal and disconnects by removing the / button (O T circuit as described earlier. II. Connection. Long-distance incoming line to the intercity station, long-distance station without the amplifier, the multiple field of the long-distance transmission line, the withdrawing long-distance transmission line. The call reception, just as the free wire is occupied, occurs according to the current flow, as described above. The group selector GW is set in the usual way on the desired decade (intermediate sta.nzi without an amplifier) and occupies the free wire of the intermediate station. Relay L operates (Fig. 4): - incoming wire with, winding I relay A and rest contact sru 1, resistance W 13 , working contact 1, resistance SW 11, battery, ground voltage. By actuating contact a and 4, an ASL lamp is ignited in the following current path: - ground, battery, ASL lamp 3, resistance W 14 rest contacts sru 3 and dul, working contact AI 4, zeml. The intermediary telephony operator for the request rearranges the AnS TS key. It is switched on by means of the key AnS 1 and 2 on incoming from the intercity station through the group selector cores o, b. Relay D and is energized: - ground, battery, winding I relay D U, key AnS 3, working contact ai 4, ground. The current circuit for the lamp A SL 3 at the contact d and 1 is interrupted, the relay) and is held after the key A p S is replaced through the working contact: - ground, battery, winding II, relay D and, working contacts "/" 2 and "m 4, land A long-distance telephone operator receives an intermittent buzz with an effective ES key after the group selector occupies an intermediate cord: - ground, battery, transmitter of a phono signal Su 3, translator G / and, working contact m 5, resistance W 15, rest contact p 21, transmitter winding U IV, lived b through a group selector to an intercity station, button K O T 2, working contact h 4, key F / 1 3, contact rest 3, capacitor CO 2, keys A 82 and RS 15, device query lb /. working contact g 12, keys PP 1 and / 1 L 1, condenser CO 1, contact rest 1, key G T1 and FL T 1, working contact h 2, button K. OT 1, lived and through the group selector to interim cord, winding and II transmitter, contact rest 23, pampa RLu conpOTnjOTeHHeVFlG, zeml. When the ES key is in a quiet position, so that the relay I (Fig. 2) is turned off, pe / S 2 delays the intermittent CURRENT: - current flow, as in the previous case, then through the core b of the group selector to the intercity station button / CO, contact rest h 3, relay 8 2, contact rest h 1, button / CO 7 1 core and lt, d., As described earlier. The lamp SL 2 (FIG. 2) flashes. At the intermediate station, when the plug is raised, relieb-R 4 acts: - ground, battery, SR 4 relay, plug-over switch Stu, ground. The SRu relay switches on the contact Sru 2 coming from the Lgilhu group selector with: - lived with the selector from rpj-nnoBoro, winding I relay, Au working contacts sru 2 to au 2. winding II relay Au, battery, zeml. The action of the contact sru 3 lights up the lamp In L and; -date, battery, resistance § Ж12, contact rest / tt31, .champa 5 L and, working contacts sra 3 and a and 4, zem.ch. a) The required wire is free. The telephonist of the intermediate station inserts the plug VSii- into jack 1 of the required long-distance transmission line and relays Za 1, C 2 and U are expelled: - earth, phono signal transmitter S and 4. Pz / 1 relay, rest p and 25, working contact g / and 4, plug VSu, socket rf (v 1, lived with, relay C 2, battery, ground in parallel to C 2 relay U, rest contact C 11, resistance 4 and 4, battery, ground. Through contact Pu 12 operates Pu 3 relay: earth, battery, resistance W 18, working contact pu 12, relay I and 3, working contact du 3, ground. The current circuit for the BLu lamp at contact / and 31 is interrupted. Relay P The RH is held after opening the contact R 12 through the contact p and 32: - ground battery, resistance 8 W 12, working contact R 32, resistance W 17, relay Re 3, working contact du 3, earth Simultaneously with relay Re 3, the relay is energized Pu 2: - earth, battery, working contact Pu 11, Relay Pu 2, earth relay Re Pu 1 is disconnected at contacts p and 25, and Relay 2 turns on j contact Pu 26 to the core from the long-distance transmission line: earth, winding relay Pu 2, working contacts ri 26 and du 4, plug VSu, socket Ff (u 1, lived with, relay C 2, battery, earth and in parallel to C 2-relay U. Ioko contact with 11, resistance 5 W 4, battery, zeml. The HSu relay is energized through the p.m 13 contact: - ground, operating contact 13, resistance W12, relay HSu, battery, ground. The HSu relay is delayed via the S 2 relay at an intercity station: - ground, battery, HSu relay, working contact hsu 1, transmitter winding and 1L, lived b through the group selector to the intercity station, push button / CO T 2, rest terminal fi 3, relay S 2, contact rest fi 1, button K.О T, lived through the group selector GW to the intermediate cord, transmitter winding and II, working contact ri 24, relay WRu, ground. Relay jS 2 at a long-distance station is called and turns on S L 2. The relay disconnects and contacts 1 in. and 3 a required long-distance transmission line from a long-distance station and connects it via contacts and 2 and n 4 to a multiple field of an intermediate station. The contact and 6 have a closed current circuit for the signal lamp B L I of the outgoing wire at a long-distance station. Both long-distance transmission lines are now connected to each other in the intermediate station cord via VSu plugs, working contacts

at 34, contact rest wrulTiwruA and translator. The operator of a long-distance station may, in actuation of key 55, call the operator of another inter-city station. The incoming current passes through the incoming wire: - the source of the ring

current, K.CHUCHP ES 12, ES 2 and SS 11,

contact rest and 1, lived a far

stations, back through the conductor L contact rest and 3, keys fSS 12, ES and 14, the source of the ring current. In order to trigger the outgoing long-distance transmission line, the relay WRu is energized by means of an RS 24 key: - earth, battery,

resistance SW2, contact rest 22, keys and FL T 1, working contact h 2. AfO button 7 1, lived and through

group selector to the intermediate station cord, translator winding and II, working contact ri 24, WRu relay, ground. The wru 2 and wru 3 contacts send the ringing current to the conductors a and b of the outgoing wire and at the end of the conversation are disconnected from the intercity station. In the passing wire, the relay ARS 1 is energized. So that the current path for the ASL I lamp is closed. The ringing current coming from the required long-distance station excites the relay RRu of the cord between the individual stations, due to which the HSu relay starts to operate: ground, battery, HSu relay, resistance W 19, operating contact 1, earth. The HSu relay is reset by wiring to a 2 2 intercity station. The lamp SL 2 goes out as a sign of the end of the conversation and the telephone operator disconnects the connection by turning off the button / COT, the Group Selector G W is released in a known manner, so that through turnips A it stops flowing and it

off. At contacts a and 4, the restraining circuit for relay Du is interrupted, whereby the contact du 4 disconnects the core from the desired long-distance transmission line. Relay Ree 2, C 2. U is turned off and the long distance transmission line is free. Relay Pu 3, by opening contact d and 3, is also released from the current and turned off. Lamp ASL 3 extinguishes: - earth, battery, lamp ASL 3 resistance W 14, working contact sru 4, contact rest 3,

land The operator of the intermediate station takes out the plug, which, by activating the plug contact, interrupts the current day for the relay S Ru. Opening the contact sru 4 puts out the ASL 3 pump.

Testing, closure, and preparation follow the same procedure as described in i (paragraph b a c).

Iii. During a small amount of re-FOBOpoB, long-distance transmission lines are included in a known manner at the c6opHyid station. This is done by rearranging the K-Busch 56 1. At the assembly station (Fig. 6), on the long-distance transmission line are located: a callout socket A / C, a callout lamp AS Is and a signal nampa BLS. Signaling on conductors occurs in the same manner as described in I and II.

The subject of the patent.

1. Inter-city telephone station for long-distance calls through translations, and for local calls, characterized using the K, O T button to connect each long-distance transfer line (through which the long-distance call station is connected to other similar stations) with the G WX selector controlled from a distant station, to the contact field of which the connecting devices of various auxiliary transfer places are connected, namely, the pre-distribution point, the automatic switch-on station, intermediate (tr Antialign station with or without amplification.

2. The form of the station described in clause 1, characterized with the use of a switching device that is connected in such a way that the connection set up from the remote station through the selector G M / k to the auxiliary transfer point, during negotiations without amplification, serves for negotiations and signals, and in negotiations through an intermediate amplifier, it serves only for signals and controls.

3. The form of implementation described in p. 1 and 2 stations, characterized in that each far line is driven by a switching point in which the far line can be disconnected from its remote station and connected to a multiple field 1 and intermediate points FK.V2, and U is used for switching through the connecting plug K51, VS 2, VSu of the full field of the far line is driven for certain line conditions.

4. The form of implementation described in p. 1-3 stations, characterized in that the multiple field FK, v 1 of the far line at the intermediate point without an amplifier is directly connected to the switching point, and the multiple field 2 intermediate points with amplifiers are connected by means of intermediate devices serving for amplifiers, which auxiliary amplifiers (extension wire LV) are connected to the switching point via the contacts g 81 and g 32 pe.Tie U located at the socket of the socket 2, and are driven through the connecting plug VS 1, VS 2 multiple gender.

5. The form described in p. 1-4 stations, characterized in that for each multiple socket FK, v 1 and FK, v 2 of the far line, at all intermediate points, optical signals SZ are arranged which indicate the occupied state of this line when installing from some intermediate point connection with translation through a yes line.

whereby the relay C 2 is excited through the wire C of the connecting cord, or when this far line is 1 line from the far station, and the relay C 1 is excited through the key ES 1 or the / CO button T 4.

6. When characterized in pp 1–5 stanpions are used in connecting terminals of intermediate points of relay P 1 or Pu 1, intended to come into effect after insertion of a connecting plug VS 2 or 1/5, if the far line is not occupied, so that the intermediate cord can be switched on without this disrupting the already established connection through this far

.thignia.

7. When described in pp 1-6 Stations, the use of an acoustic signal, designed to come into effect when on: luch: Extend the intermediate cord and show that the far line is prepared for switching.

8. When described in pp. 1–3 tanty applications at the far station, in the appropriate far line, of the optical signal of the BZ signal, intended to come into effect when the long line is taken from some intermediate point.

9. When characterized in pp 1-3 stations application for the far line

two switching points ES 2 and ES 4; L 1 and L 3 at the corresponding distant station, and through one of these places 52 and 54, the part of the far line going to a non-resident station can be connected to a special local device; namely, the device A bf for polling with the ring key RS, while through the second of these places L 1 and L 3 a special local device can be connected to the part of the far linip connected via the connecting button T to the auxiliary transfer station through a selector.

It is a patent of the in-law Anparates E.

fig4 ..

. E f t-ff- T -. 9 of the company "Telephone factory Tsvitush and K number 15632