SU605334A1

SU605334A1 - Arrangement for autonomous two-way subcriber's communication

Info

Publication number: SU605334A1
Application number: SU762416859A
Authority: SU
Inventors: Леонид Александрович Мазаев
Original assignee: Mazaev Leonid A
Priority date: 1976-11-02
Filing date: 1976-11-02
Publication date: 1978-04-30

Description

1one

Изобретение относитс к проводной св зи и может использоватьс в телефонии..This invention relates to wired communication and can be used in telephony.

Известно устройство автономной двухабонентной телефонной св зи, - содержащее два телефонных аппарата, силовой трансформатор с одной первичной и двум вторичными обмотками , выпр митель, причем первый вывод первой вторичной обмотки силового трансформатора соединен с первым входом выпр мител , второй вход которого соединен со .вто)рым выводом первой вторичной обмотки силового трансформатора, а первый выход выпр мител соединен с первыми вводными клеммами первого и второго телефонных аппаратов 1.A device for autonomous two-subscriber telephone communication is known, which contains two telephone sets, a power transformer with one primary and two secondary windings, a rectifier, the first terminal of the first secondary winding of the power transformer connected to the first rectifier input, the second input of which is connected to the second) The first output terminal of the power transformer is connected to the first output winding, and the first output of the rectifier is connected to the first input terminals of the first and second telephone sets 1.

Однако дл известного устройства характерно большое врем установлени соединени между абонентами.However, the known device is characterized by a large connection establishment time between subscribers.

Цель изобретени - уменьшение времени установЛени соединени между абонентами.The purpose of the invention is to reduce the time for establishing a connection between subscribers.

Дл этого в устройство автономной двухабонентной телефонной св зи, содержащее два телефонных аппарата, силовой трансформатор с одной первичной и двум вторичными обмотками: , выпр митель, причем первый вьшод первой вторичной обмотки силового трансформатора соединен с первым входом выпр мител , второй вход которого соединен соFor this, an autonomous two-subscriber telephone communication device containing two telephone sets, a power transformer with one primary and two secondary windings: a rectifier, the first output of the first secondary winding of the power transformer connected to the first input of the rectifier, the second input of which is connected to

вторым выводом первой ВТОрИЧ-НОЙ 0б1МОТКИthe second conclusion of the first VTORICH-NOY 0b1 sweeps

силового трансформатора, а первый выходpower transformer, and the first output

выпр мител соединен с первыми вводными клеммами первого и второго телефонных аппаратов , введены модул ционный Т1рансформатор с одной первичной и двум вторичнымиобмотками , два фильтра, элемент И, элемент ИЛИ и два электронных ключа, причем второй выход выпр мител соединен с первыми входами первого и второго электронных ключей , с первым выводом второй вторичной обмотки силового трансформатора и также с первыми входами первого и второго фильтров и с сердечником модул ционного трансформатора , первые -ВЫВОДЫ первой и второй вторичных обмоток соединены соответственно со вторыми входами первого и второго фильтров, выход первого фильтра соединен с первым входом элемента И и первым входом элемента ИЛИ, выход второго фильтра соединен со вторым входом элемента И и вторым входомthe rectifier is connected to the first input terminals of the first and second telephone sets, a modulation T1 transformer with one primary and two secondary windings, two filters, an AND element, an OR element, and two electronic switches are introduced, the second rectifier output being connected to the first inputs of the first and second electronic keys, with the first output of the second secondary winding of the power transformer and also with the first inputs of the first and second filters and with the core of the modulation transformer, the first - OUTPUTS of the first and second secondary x windings are connected respectively to the second inputs of the first and second filters, the output of the first filter is connected to the first input of the AND element and the first input of the OR element, the output of the second filter is connected to the second input of the AND element and the second input

элемента ИЛИ, выход элемента И соединен со вторым входом первого электронного ключа , выход которого соединен с выходом элемента ИЛИ и вторым входом второго электронного ключа, выход которого соединен сthe OR element, the output of the AND element is connected to the second input of the first electronic key, the output of which is connected to the output of the OR element and the second input of the second electronic key, the output of which is connected to

первым выводом первичной обмотки модул ционного трансформатора, второй вывод которой соединен со вторым выводом второй вторичной обмотки силового трансформатора, а вторые вводные клеммы первого и второгоthe first terminal of the primary winding of the modulation transformer, the second terminal of which is connected to the second terminal of the second secondary winding of the power transformer, and the second input terminals of the first and second

Claims

telephone sets are connected respectively to the second terminals of the first and second secondary windings of the modulation transformer. An example of an autonomous two-subscriber telephone communication system is presented in this report. The device contains two telephone sets 1 and 2, a power transformer 3 with one primary 4 and two secondary 5 and 6 windings, a diverter 7, the first output of the first secondary winding 5 of the power transformer 3 connected to the first rectifier input 7, the second input which is connected to the second output of the first secondary winding 5 of the power transformer 3, and the first output of the rectifier 7 is connected to the first input terminals of the first and second telephone sets 1 and 2, as well as the modulation transformer 8 from one primary No. two to the secondary windings, two filters 9 and 10, element 11, element OR 12 into two electronic keys 13 and 14, with the second output of rectifier 7 connected to the first inputs of the first and second electronic keys 13 and 14, to the first output of the second secondary winding 6 of the power transformer 3 and also with the first inputs of the first and second filters 9 and 10 and with the core 15 of the modulation transformer 8, the first terminals of the first and second secondary windings are connected respectively to the second inputs of the first and second filters 9 and 10, the output of the first filter 9 is connected to the first the entrance to the ele And 11 and the first input of the element OR 12, the output of the second filter 10 is connected to the second input of the element 11 and the second input of the element OR 12, the output of the AI element is connected to the second input of the first electronic key 13, the output of which is connected to the output of the element OR 12 and the second input of the second electronic key 14, the output of which is connected to the first output of the primary winding of the modulation transformer 8, the second output of which is connected to the second output of the second secondary winding 6 of the power transformer 3, and the second input terminals of the first and second tons Telephone devices 1 and 2 are connected respectively to the second terminals of the first and second secondary windings of the modulation transformer. The device works as follows. Rectifier 7, connected to the first secondary winding 5 of power transformer 3, produces a constant positive voltage in the lithium circuit of telephone sets 1 and 2. When the subscriber picks up the handset from telephone 1, direct current will flow through it the winding of the modulation transformer 8 and the first filter 9 will fall on the elements AND AND AND OR 12. The element OR 12 will work and thereby turn on the second electronic switch 14, as a result of which the alternating voltage of the industrial frequency removed from the second secondary winding 6 power transformer 3, will be connected to the modulation transformer 8, which will cause the appearance of a phonetic call signal in the handset of telephone set 1, and telephone set 2 will start ringing. When another subscriber picks up the handset from the telephone 2, DC will flow through it, which then, passing through the winding of the modulation transformer 8 and the second filter 10, will fall on AND 11 and OR 12. Element AND 11 will work and thereby turn on the first an electronic switch 13, which closes the output of the element OR 12, whereby the second electronic switch 14 is turned off. The call will be cleared. Subscribers can then exchange information. The first electron key 13, made on the thyristor, is in the on state until both tubes are placed on the levers of telephone sets I and

2. This is necessary to prevent repeated (false) triggering of the call signal from one of the handsets. The device operates in the same way as in the reverse order. The principle of operation of the device for autonomous two-subscriber telephone communication is described by the algorithm De XI-event with a telephone appliance, Item 1; 0- tube not lifted; 1 tube is raised. X2-event with a telephone 2; O-tube is not lifted; 1 - tube is raised. Y - the presence of a call signal; 0- no call signal; 1- there is a call signal. Maintenance of the device is eliminated, since the device is equipped with contactless elements. The invention of the Autonomous two-subscriber tefon communication device, comprising two telephone sets, a power transformer with one primary and two secondary windings, an isolator, the first output of the first secondary winding of the power transformer connected with the first input of the rectifier, the second