DE1088110B - Circuit arrangement for telecommunications, in particular telephone systems with indirectly controlled dual mode dialers - Google Patents

Description

GERMAN

It is already known to combine lines in telecommunication systems, in particular telephone systems, with the aid of dual mode selectors, which work as preselection devices in incoming traffic and as line selectors in outgoing traffic. While they have therefore in one mode of operation the task of a particular incoming line with a free secondary connection pipe to be connected, is in outgoing traffic be the task to interconnect such a predetermined connecting line with a particular outgoing line. If the system of indirect control is used, marking devices must be available to control this dual mode selector, which can carry out both a free selection and a controlled selection. In order to keep the cost of such marking devices within tolerable limits, efforts are therefore made to assign both tasks to a single marking device, which naturally makes this marking device relatively complicated. Above all, additional facilities are required to prevent mutual influencing of the free choice and the controlled voting facilities.

The invention avoids these special facilities by the fact that from the completed setting the double operation selector dependent switching means after each setting of the double operation selector to one Direction of one traffic direction the marking device controlling the dual mode selector to one Device temporarily storing setting indicators assigned to the other traffic direction turn on.

Thus, in the invention, one and the same marking device is used both for implementation a free choice as well as for the implementation of a controlled choice is used by this marking device alternately, as is further proposed by the invention, with the individual Lines individually terminating circuits and one that records the setting indicators and accordingly further marking device transforming the control system used is connected.

A significant acceleration of the marking process when controlling the dual mode selector can still be achieved in that, as is further proposed, the occupancy status of the for the establishment of the connection in a certain traffic direction necessary "facilities of the setting and / or speech path dependent switching means in the absence of a connection option in this Direction of the marking device controlling the double operation selector in preparation for the other circuit arrangement for telecommunications,

in particular telephone systems
with indirectly controlled double operation selectors

Applicant:

Telephone construction and normal time G. m. B. FL, Frankfurt / M., Mainzer Landstr. 134-146

Dipl.-Ing. Norbert Kleber, Munich,
has been named as the inventor

Switch on devices of the adjustment path that control the direction of travel. In this case, be in those Direction of traffic in which there are no longer any connection options, even none from the start further tests carried out.

An exemplary embodiment of the invention is shown in the drawing. It shows

1 shows a simplified voting scheme for a dual operating system,

2 shows a section of the marker receiving the setting indicators,

3 shows a basic circuit diagram of the actual switchover device and

FIG. 4 shows a circuit detail for FIG. 3.

In the dual operating system shown in Fig. 1, the individual subscribers TIn are connected via subscriber lines Tl with subscriber's own connection circuits Tn . The subscriber lines can be connected to a free connection set for calling subscribers AR and a free connection set for called subscribers AG via a summarizing device Z. The coupling between an occupied connection set AR for calling subscribers and a connection set AG for called subscribers takes place via a switching field S ₁ which is controlled by a switching field markerikfvS '. On the subscriber side, there is also a caller identifier AE in the setting path, which influences the summarizer Z via a marker MZ so that when it is hung up

009 589/109

3 4

a subscriber Tin whose subscriber line is not working with and the caller AE to the

a connection set for calling subscribers AR is switched to main marker HM.

is bound. Is this way one after the other over the

The caller AE is also connected to a summarizer Z, an interface set AR for calling main marker 5 subscribers coupled to the marker MS with the calling subscriber and an HM , which is connected to the one memory summarizer Z5 " via a memory Sp and an interface set for called subscribers AG" /> connected to the connected subscriber, the connection between these two incoming transmission ÜK takes place via the set for calling subscriber AR or with an an- switching field .S From the handset, then the marker MS coupled with the main marker becomes in the call.
recognizer AE identifies the subscriber in question. Further conditions are discussed in the description and this subscriber in FIG. 3 is also discussed via the marker MZ.

with a free connection set AR connected together- In Fig. 3, the line labeled Tn stands with tet. This interconnection takes place only if the subscriber connections are connected and in which such a connection set AR is free and also 15 message from a subscriber leads this line to a free memory Sp for the setting indicators for the positive pulse, the timing of which is available to you. If this is the case, the partially hung subscriber set dials the same. Anschaltesätze the switch are set the number of the respectively desired AR connected for calling subscriber, while at the subscriber that is held in the Speicher.?/ 'to the designated participants after receipt of dial tone from the purchase AR inputs. 20 the lines marked with AG are connected from this memory to the main records for called subscribers are connected, marker HM or the marker for the switching All those input lines that have a free field MS. The main marker HM now puts a pulse in the connection set for calling or called subscribers, caller IDs AE , whose time slot is assigned to the AR or AG , lead plus potential, identifies the desired subscriber an antenna leads negative potential,
call enters the caller Kenner AE, a pulse incident on the line Tn, a positive pulse a whose timing ISIN the calling party so the monostable multivibrator MM 10 is short lines, momentarily deflected and indicates a positive pulse

The caller identifier AE now controls the AND circuit U 17 and t / 18 via the 30. If there is still a marker MZ, the summarizer Z in such a way that the connection set for calling subscribers AR is free, subscribers with a connection set for that is, if not all inputs of the AND switch called subscriber AG are connected yet. Since the device U 11 is at negative potential, only one connection establishment passage of the Schmitt trigger ST12 appears at the AusMarker MZ and can therefore also control, it is ensured that the caller recognizes the middle inputs of the AND circuits U17 AE in each case only with the subscriber and U18 plus potential, while at the upper input terminals Tn or with the main marker HM of the AND circuit U 13 minus potential prevails, is connected. The other input of the AND circuit U 13 is connected to the timing device in FIG. The arrangement is such that the partial pulses of this clock generator do not influence the output of the AND slave connection circuits Tn and the main circuit U 13.
kierer HM alternately to the call recognizer AE If, however, all connection sets for calling part are switched on, with the switch being occupied by the recipient AR , then at the output of one device to the other one appears at every free 45 Schmitt trigger ST 12 negative potential that the AND switching of the caller ID takes place. Is due to circuits! 717 and U18 blocks. At the upper one of the two directions, either on the part of the input of the AND circuit Γ713, there is positive potential in the subscriber line circuit Tn or in the main case, so that there is no connection request via the line TGa marker HM , so incoming positive pulse of the clock generator TG am receives the other direction, regardless of the output of the AND circuit! 713 which also causes a positive pulse in the previous position of the switch. This positive impulse gives access to the caller ID . If all the connections have been made via the OR circuit 021 to the up-sets for calling subscribers AR or all connection-stable multivibrator BM20, which occupies the reversed sets for called subscribers AG , the right output, which is connected to the AND-none Switchover of the caller identifier AE to the circuit! 719 leads, receives positive potential, whichever direction contains these fully occupied call records. This right output is the main marker HM . assigned, while the left output leading to the

Subscriber reporting pulses can thus only lead AND circuit? 718, the subscriber connection is assigned to the summarizer Z via the marker MZ and organs Tn . This means that when the call is busy, AE will control when a connection set is all 60 connection sets for calling subscribers AR set for calling subscribers AR, a memory Sp and a switchover of the caller AE from which a connection set is free in the switch field 5 *. A subscriber's side on the main marker HM is a further condition that this is taken upon arrival.

Signaling pulse of the marker MZ does not work and is on when a signaling pulse is received

the caller Kenner AE to the subscriber lines 65 led Tn still Anschaltesätze for calling sub-

Tn is set. recipient AR is free, the left output of the

Conversely, subscriber identification multivibrators BM 20 plus potential and thus also

Pulses from the main marker HM are only effective at the lower input of the AND circuit! 718. At the

be sam if there is still a connection block for the called occurrence of the subscriber message pulse

Subscriber AG is free, the marker MZ also 7 ° at the output of the AND circuit! 718 a pulse

1-088 HO

caused, which leads to the right input of the bistable multivibrator BM 25 via the OR circuit 023. This multivibrator is reversed when this pulse occurs so that a negative potential appears at its output, which is differentiated in the differentiator Ds29 and influences a Schmitt trigger ST 30 so that a positive pulse appears at the output, the timing of which corresponds to that of the input pulse is brought over. Instead of the main marker HM , the subscriber connection devices Tn are again connected to the caller identifier AE .

That part of the main marker HM which is important in the present case is shown in FIG. The main marker consists of AND circuits U 5, U 7 and U 9 arranged in stages, as well as further AND circuits / 73 and t / 4. By using the main marker HM (see Fig. 1)

only

agrees and thus the calling subscriber io coupled memory Sp are marked in accordance with the j. The control of the corresponding subscriber call number dialed at the time, contacts KE,

KZ, KH and KT operated. One-pulses are connected to the terminals El to EO and tens-pulses are connected to the terminals Zl to ZO in such a way that. a pulse is fed to the individual contacts of each row of contacts one after the other. The contacts Zl to ZO pulses applied to have it ten times the length of the contacts to El £ 0 pulses applied. Will ever be one of the

Gang also takes place for the 100 and 10000 groups, whereby the inputs EH 1 to EHO and the inputs ZT1 to ZTO are also supplied with one or ten pulses. The respective lOüer group of the desired participant is determined by these latter contact groups of the memory Sp , while the individual participant of the relevant 100er group is selected by the contacts KE and KZ .

Further unit pulses for selecting the group of 100 and further tens pulses for selecting the group of 100 are the left inputs of the AND circuits U7 and the left inputs of the AND circuits U 5, U 6. .. fed. At

Switching elements in the summarizer Z is indicated schematically, since only the outputs are shown, which identify a specific group of participants in the MarkiererikfZ.

If it is assumed that there is a group of 100 participants, then the inputs E1 to EO of the AND circuits 1732 are fed successively time-shifted pulses. The

Inputs Zl, Z2 etc. of the AND circuits Ϊ733 20 contacts KE and KZ are actuated, so in the time staggered pulses are also supplied, the time assigned to the selected contact KZ , whereby the length of these pulses is ten times the length of the actuated contact KE The pulse of the individual pulses is removed from the AND circuits t / 32, so that it speaks for the duration at the appropriate point in time. If the subscriber signaling pulse is now one of the single pulse at the output of the AND circuit, which occurs due to its temporal position the calling 25 JJ 3 a pulse in appearance. The same pre-subscriber identifies, so he will appear in the assigned time at the AND circuit U 32 assigned to him and the corresponding control of the summarizer Z (Fig. 1)
make.

The positive pulse occurring at the output of the Schmitt trigger 6T30 also reaches the right input of the monostable multivibrator MM 31, so that it changes its state of excitation. This monostable multivibrator MM 31 can be switched back either after the summary unit Z has been switched through or after the busy check has been carried out by transmitting a positive pulse to the left input of this monostable

Multivibrators are made. You can make the arrangement 40 one of the outputs of the AND circuits Ό7 but also meet so that the monostable multi as a result of the actuated contacts vibrator MM 31 after a certain time, the KH and KT fixed time in implementation of a pulse a switching process in the collective appearance, which by its temporal position is sufficient for the captured Z, by itself in its initial position characterizes the desired 100 group. This impulse tips back. When this tilting back occurs at the output 45, a bistable multivibrator BM 8 is fed, the output of the monostable multivibrator MM 31, which tilts into its other position, in which its positive pulse shows the bistable right output minus potential and its left multivibrator BM2S also appears in its starting position, output plus potential. This resets. In addition, the positive potential of the left inputs of the AND bistable multivibrator BM 20 is influenced by this pulse in such a way that 50 circuits U 9 are supplied, the right inputs of which point to the line leading to the AND circuit U 18 via a monostable multivibrator MM with the The output of the AND circuit U 3 leading to the AND circuit U19 is now linked. Line is provided with positive potential, so in the illustrated embodiment what, as already mentioned above, with the switchover 10000 outputs are available, each of which is assigned to a device of the caller AE by the subscriber 55 specific subscriber and where all connecting organs Tn to Main marker HM the same - these outputs are significant if labeled accordingly.

If there is no supply from the main marker HM , the bistable multivibrator BM 8 of the main marker is in its rest position, in which positive potential is applied to its right output, which leads to the lower input of the AND circuit 1717. If a subscriber has hung up, then, as already described in the introduction, plus potential is applied to the upper input of the AND circuit U17 , so that the bistable multivibrator BM 20 can be connected to the output of the "AND circuit U17 and the OR circuit 022" Plus potential at its right input into the caller ID to the AE

of the desired participant emit an impulse that, due to its temporal position, the desired participant indicates.

The resetting of the individual bistable multivibrators BM 8 takes place either after a certain time has elapsed or by a reset pulse depending on the implementation of the respective desired switching process.

As already mentioned in the introduction, there is positive potential at the input of the Schmitt trigger ST 15 as long as a connection set for called subscribers AG is still free. The Schmitt trigger .ST15 in turn applies positive potential to the middle input of the AND

Subscriber connection circuit Tn connecting position 70 circuit U 19 as well as negative potential on the right

7 8

Input of the AND circuit U16. As a result, the positive impulse from the AND switch

impulses originating from the clock generator TGb are ineffective. device U 19 is also the monostable multi-

However, if no connection kit for called part vibrator MM26 is briefly deflected. With the retractor AG more free, so is at the input of the tilt this multivibrator a positive Schmitt trigger ST 15 negative potential and also 5 impulses on the left input of the bistable Multiam middle input of the AND circuit U19, so vibrators BM27, so that this on his right that this is blocked. In this case, the right output becomes conductive and positive potential is applied to the input of AND circuit U16 plus lower input of AND circuit U 28,
potential causes that from the clock TGb stam- Has unhooked the OR circuit 022 the bistable multi-participant until the arrival of the reset pulse after menden pulses via the AND circuit U 16 as well as the processing of the main marker HM Move the monovibrator BM 20 from the position »HMκ to the stable multivibrator MM 10 still in the rest position, position » Τη « . then the right output of the bistable multi

Now one of the desired participants vibrators BM 20 continues to conduct. If the main associated outputs of the AND circuits in the marker HM are reset, a positive main marker HM (FIG. 2) is created, a vibrator BM 8 the desired participant of a vibrator BM 8 due to its time pulse at the right output of the bistable multiliche position , the positive device U28 characterizing the prepared AND switching voice group of 100 as well as the OR circuit 021 the bi-pulse, this is in turn fed to the upper input of the AND stable multivibrator BM 20 in the control circuit U19. If there is a bistable multi- 20 ling "HM" brings.

vibrator BM 20 in the position "HM" and is still The arrangement shown in Fig. 4 can in place

at least one of the connection sets for called the arrangement framed by dash-dotted lines in FIG. 3

Participant AG free, the AND step occurs at the exit. Terminals a, b, d and e close these

Circuit U19 a positive pulse in appearance, framed in the same places on the arrangement of the

via the OR circuit 023 to the bistable 25 Fig. 3. The terminal c is in an arrangement according to

Multivibrator BM 25 is supplied. This eliminates the need for Fig. 4, so that the connection of these

if there is a negative potential at the output of the bistable terminal c with the output of the monostable multi-

Multivibrators BM25, and the differential vibrator MM 10 are missing.

circuit Ds29 the Schmitt trigger ST30 is so. In an arrangement according to FIG. 4 it is influenced by the fact that a positive pulse from the AND circuit U 19 appears at its output, which, due to its timing, produces the desired pulse the monostable multivibrator MM 26 is brought into the th participant of the controlled 100er group and tips over after a short time correctly and automatically back via the caller AB in the previous one. When tilting back, the connection is as described, this then causes a positive pulse at the left input of the subscriber to a free connection set for the monostable multivibrator MM 21 α- and sets called subscribers. After this, also return to the rest position. When switching back or after a busy check of the desired tilt, the steers. monostable multivibrator MM 27 a participant or after a short time to run through the monostable multivibrator MM 36 , the execution of these switching operations to the AND circuit U 28 α a positive pulse is given via the monostable multivibrator MM 31 of 40. However, this cannot take effect because the bistable multivibrator BM 25 is reset and, at the upper input of the AND circuit U 28 α, the bistable multivibrator of the working position of the bistable multivibrator BM 25 BM 20 is reversed again so that it is out of position. Negative potential is present. After sounding through, »HM« has moved to the »Tn« position. As a result of the device, the bistable multivibrators BM 25 are switched over to the bistable multivibrator BM 20 45 and BM 8 in the manner described above via the OR circuit 024, whose lower one is set. If there is now another offer from the input with the left output of the bistable main marker HM and as a result, the multivibrator BM 20 is connected, the bistable of the bistable multivibrator BM 8 is again in its multivibrator BM 8 of the main marker HM in the working position, then a negative one arrives Pulse switched back to rest position. Such a return 50 the monostable multivibrator MM 27 α and tilt position of the bistable multivibrator J3M8 finds this in the working position. The monostable multi but also takes place when there is no free connection set for vibrator MM 27 α remains for the duration of an interrogated participant, since the cycle of the participant Tn is also in this position. If the output of the AND circuit £ 716 does not receive a positive pulse from the circuit O 24 to the bistable multivibrator BM 8 55 subscriber circuit Tn via the OR during this time, then the bi can reset. stable multivibrator BM 25 the positive potential at the

After switching through and after switching back AND, U 28 α lie. If the mono-

position of the used bistable stable multivibrator MM 27 α in its starting position

The BM 8 multivibrator of the main marker HM is behind, so the monostable multivibrator MM 36

deflected at the two inputs of the AND circuit [734 60, the plus potential at the lower input

Plus potential, so that also at the output of this AND the AND circuit U 28 turns on α.

Circuit plus potential appears. This results in the positive pulse from the AND circuit U 28a

AND circuit U35, the other input of which switches to the bistable via the OR circuit 021

a clock generator TG is connected, so multivibrator BM 20 is again in the "HM" position, see above

that the pulses of the clock TG become effective 65 that the main marker are dispatched again

and the marker (not shown) of the control panel.

Start MS to set the through connection between the decimal

occupied connection set for calling subscribers and subdivision of the various impulse groups

the occupied connection set for called subscribers chosen arbitrarily; the cheapest type of

to undertake. · 70 subdivision depends on the size of the facility as well

on the arrangement of the levels of the summarizer.

Claims (7)

Patent claims: 1. A circuit arrangement for telecommunications, especially telephone systems with indirectly controlled double operation voters and these voters both incoming and in the outgoing direction of each of calling or call end line controlling marking device, characterized in that from the completed adjustment of the dual mode selector dependent switching means after each adjustment the dual mode selector on a line of one traffic direction switch on the marking device controlling the dual mode selector to a device that temporarily stores setting indicators assigned to the other traffic direction. 2. Circuit arrangement according to claim 1, characterized in that the marking device controlling the double mode selector is connected alternately to the circuits which individually terminate the individual lines and to a further marking device which receives the setting indicators and which transforms according to the control system used. 3. Circuit arrangement-according to claim 1 and 2, characterized in that from the occupancy state for the connection establishment in A certain traffic direction necessary facilities of the setting and / or speech path dependent switching means in the absence of a connection option in this direction the die Marking device controlling double operation selector in preparation for the devices controlling the other traffic direction, the setting path turn on. 4. Circuit arrangement according to claim 1 to 3, characterized in that the switching of the the marking device controlling the dual mode selector from the subscriber line organ to the facility receiving the setting indicators, and vice versa, at the end of each through the mentioned marking device controlled marking process is carried out. 5. Circuit arrangement according to claim 1 to 3, characterized in that the marking device for the double operation selector alternately to the subscriber connection organs and the the switching means that converts the marking device, also the connection and blocking of those to be connected to the outputs of the dual mode selector and depending on the direction of traffic control differently trained facilities. 6. Circuit arrangement according to claim 1 and 2, characterized in that the marking device is available to control the dual mode selector for a specific traffic direction, as long as there is no request from this marking device from the other traffic direction. 7. Circuit arrangement according to claim 1 and 2, characterized in that with a subdivision the available selection options the setting indicators for the controlled connection establishment evaluating marking device in several groups switching means of the double operation selector controlling marking device for the occupancy of this marking device by the first mentioned marking device connected to the group outputs of this marking device are. 1 sheet of drawings ® 009 589/109 8.60