CN2206524Y

CN2206524Y - Automatic exchange for magnetotelephone

Info

Publication number: CN2206524Y
Application number: CN 94205315
Authority: CN
Inventors: 陈清泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-22
Filing date: 1994-03-22
Publication date: 1995-08-30
Anticipated expiration: 2004-03-22

Abstract

The utility model relates to an automatic exchange for a magnetotelephone, which is used for the networking patch of magnetite users and program control users and the automatic switchover for the inlet and outlet of telephone ring of both users, etc. The utility model is composed of an automatic switchover control circuit, an automatic release circuit, and a relay station. The automatic switchover control circuit mainly comprises an automatic switchover circuit, a delay circuit, and a talking converting circuit. The automatic release circuit comprises a decoder circuit for the frequency of a transformer and a shaping delay circuit. The utility model has the characteristics of saving trunk interface, saving expenses, simplifying the link of a switchover telephone, and improving the communication capability.

Description

Automatic exchange for magnetotelephone

The utility model relates to wired telephonic communication field, and the networking that is mainly used in magnetite user and program controlled user connects automatic switching that passes in and out phone with both sides etc.

At present, because (abbreviation program controlled users) such as most small-sized program controlled telephone exchanges, Auto Attendant, program controlled telephone, automatic telephones do not connect magnetite user's function and corresponding interface, though the exchange that has has the magnetite user interface, but exist some as trunk call and trunk call various problems and shortcoming such as can not transfer, some magnetite user can not be used with the program controlled user networking, cause many users still need dispose phones old-fashioned or other passive way switching magnetite users, cause the conversation difficulty, increase burden economically.

The purpose of this utility model is a kind of magnetic telephone of design machine of transferring automatically, and it can make program controlled user directly put through the magnetite user, realizes the purpose of fast automatic forward call.Do not have the magnetite user under the situation of telephone dialing function, can directly hang logical this machine, be transferred to other users by this machine again.Behind both sides' talk-through, can discern the automatic clearing post-equalization automatically.

The magnetic telephone machine of transferring automatically mainly is made up of automatic switch control circuit, automatic clearing circuit and trunk desk etc.Trunk desk is an ordinary electronic telephone set.Automatically switch control circuit is made up of voltage stabilizing, transformation, rectification, automatic built-up circuit, delay circuit, conversation change-over circuit.The automatic clearing circuit is made up of transformer frequencies decoder circuit, shaping delay circuit.

Further describe the formation and the principle of this machine below in conjunction with accompanying drawing.

Accompanying drawing is the local circuit schematic diagram.

Each switch, contact are stand-by state among the figure, and DC+, DC-are for inserting 24-60V dc power supply terminal, L ₁, L ₂For meeting magnetite subscribers feeder, T ₁, T ₂For connecing the program controlled user line, its various courses of work are described below:

1, program controlled user is dialled when hanging the magnetite user, and the program controlled user ringing-current is from T ₁, T ₂Enter, by voltage stabilizing didoe (D ₁D ₂) send transformer (B after the step-down ₂) be coupled and deliver to secondary rectification circuit (D ₃～D ₆), voltage is through R after the rectification ₆Deliver to by BG ₁, R ₅～R ₈, D ₈, J ₁Automatic switching circuit Deng forming makes J ₁And each contact adhesive, ringing-current is through J _1-1, J _1-2, C ₁, C ₂Be sent to the magnetite user.While J _1-3Adhesive make J ₁The self-insurance adhesive also makes the DC+ electric current through R ₉To C ₇Charging, time-delay is after D ₁₀Deliver to J ₂, BG ₄, R ₁₀, R ₂₁, D ₂₄Conversation change-over circuit Deng forming makes J ₂And each contact adhesive, J _2-1Adhesive make B ₁The elementary program controlled user line T that is attempted by ₁, T ₂Two ends impel ring to stop, the conversation beginning.

2, behind both sides' end of conversation, the busy-back signal that program controlled user is sent is by transformer B ₁R is passed through in coupling ₂₅, R ₂₇, C ₁₁, C ₁₆Send into by IC respectively ₁, IC ₂, W ₁, W ₂, R ₂₆, R ₂₇, C ₁₂-C ₁₉Reconcile out the busy tone pulse signal Deng the frequency decoder of forming, pass through D ₂₆, D ₂₇Be sent to R ₃₁-R ₃₅, C ₂₁-C ₂₇, BG ₇Deng the shaping of forming, delay circuit to the busy tone pulse signal discern once more, shaping, time-delay, make BG ₇Triggering and conducting, and send a high level through D ₃₂, R ₁₉, R ₂₀To BG ₂, BG ₃Base stage, make BG ₂, BG ₃Conducting, BG ₁, BG ₄End J ₁, J ₂Discharge, circuit restoration is in stand-by state.This electricity successively carries out twice decoding, identification to busy-back signal, and adopts two frequency decoders to separate simultaneously frequently to make automatic clearing more accurately and reliably.

3, the magnetite user dials when hanging program controlled user, and the ringing-current that the magnetite user sends here is from L ₁, L ₂Enter, through C ₁, C ₂To the PT trunk desk, the trunk desk bell ring is picked up mobile phone and can be conversed.When clicking K ₂, make BG ₁, BG ₄Conducting simultaneously, J ₁, J ₂And contact adhesive simultaneously, making the magnetite user, the trunk desk while is also received T ₁, T ₂On the program controlled user line, trunk desk is put through other users, and at this moment magnetite user and this user's communication begin simultaneously.Behind the end of conversation, phone automatic clearing as previously discussed becomes stand-by state.

4, K ₁It is the special function switch that is provided with in order to adapt to different occasion needs.Work as K ₁When putting to the MS position, built-up circuit is cut off automatically, and at this moment the characteristics of circuit are: one, trunk desk is waited for phone program control and the magnetite user simultaneously; Two, trunk desk utilizes K ₂(switching button) and K ₃The effect of (artificial clear key) makes it become an ordinary telephone set; The 3rd, when need being allocated to the AE position through trunk desk operator on duty agreement and with switch, program controlled user just can put through the magnetite user.

5, D ₁₃Be relay indicating light, D ₃₅, D ₃₆Be the frequency decoder relay indicating light.W ₁, W ₂For following the tracks of the semifixed resistor of busy tone frequency signal.B ₁Be the trunk desk feeder loop.

According to present magnetite user's characteristics and relevant situation, the utility model compared with prior art, it is reliable rapidly to have a call forwarding, because of signal adopts direct transmission mode, has reduced distortion and loss.This machine only need connect and use the program controlled user extension line, makes the magnetite user can connect networking with various program controlled users more conveniently, can with the supporting use of exchange, also can and connect use with extension.To telephone exchange has been installed magnetite user's unit is arranged again, can save the spending of trunk interface and saving funds, can reduce and simplify the link of forward call again, the raising communication capacity.

Claims

1, a kind of magnetic telephone machine of transferring automatically, it is characterized in that by automatic switch control circuit, automatic clearing circuit and trunk desk are formed, trunk desk is an ordinary electronic telephone set, automatically switch control circuit mainly is made up of automatic built-up circuit, delay circuit and conversation change-over circuit, and the automatic clearing circuit is made up of transformer frequencies decoder circuit and shaping delay circuit.

2, the magnetic telephone according to claim 1 machine of transferring automatically is characterized in that automatic built-up circuit is by J ₁, BG ₁, R ₅～R ₈, D ₈Deng composition.

3, the magnetic telephone according to claim 1 machine of transferring automatically, the change-over circuit that it is characterized in that conversing is by J ₂, BG ₄, R ₁₀, R ₂₁, D ₂₄Deng composition.

4, the magnetic telephone according to claim 1 machine of transferring automatically is characterized in that the transformer frequencies decoder circuit is by IC ₁, IC ₂, W ₁, W ₂, R ₂₆, R ₂₇, C ₁₂-C ₁₉Deng composition.

5, the magnetic telephone according to claim 1 machine of transferring automatically is characterized in that shaping, delay circuit are by R ₃₁-R ₃₅, C ₂₁-C ₂₇, BG ₇Deng composition.