CN2169253Y

CN2169253Y - Telephone circuit switcher

Info

Publication number: CN2169253Y
Application number: CN 93223225
Authority: CN
Inventors: 孙传瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-02
Filing date: 1993-09-02
Publication date: 1994-06-15
Anticipated expiration: 2003-09-02

Abstract

The utility model relates to a telephone line switcher which is composed of an integrated block, a relay, a capacitor, a triode, a luminous diode and an automatic grounding wire. At present, telephones are owned by numerous households, particularly, home telephones are low in use rate, and 95 % of the time of lines of the home telephones is standby. The telephone line switcher can be used for causing a pair of outdoor lines to be used by two telephones of different numbers, which can once improve the utilization rate of the lines and can reduce the cost of communication lines.

Description

Telephone circuit switcher

The utility model belongs to communication technique field, and particularly a kind of telephone line transducer can make the shared a pair of outdoor circuit of subscriber phone of two jack per stations, includes and improves line efficiency in the line communication technology.

Improve line efficiency in the prior art three kinds of measures are arranged; Utilize line frequency configuration to increase carrier circuit, as the single-channel carrier phone; Communication equipments such as four road carrier waves and digital coding.These device structure complexity, the cost height, maintenance is difficult, and needs power supply etc.; Private Branch Exchange PBX (exchange) when having " exchange " unit tuber of stemona phone above, other is installed to save circuit to telephone office.And fragmentary dispersion user Private Branch Exchange PBX is just impracticable.Also quite exchange incompatibility dispersion user use of group telephone is arranged again.

The purpose of this utility model is to solve dispersion user circuit deficiency in order to overcome above-mentioned shortcoming, makes every effort to provide that a kind of volume is little, simple in structure, cost is low, does not need the telephone line transducer of outer power supply source.

The purpose of this utility model is achieved in that a kind of telephone line transducer is made up of telephone office's Internal Translator and user's transducer and automatic ground wire:

The relay of telephone office's Internal Translator (1) shunt capacitor (3), relay (2) shunt capacitor (4), each relay all have one group of two-way contact group, the stator of relay (1) normal opened contact and a user go out exchange line just (+) line connect its moving plate and outside line X ₂Connect, the stator of its normal splice grafting point connects with relay (2) coil, and this coil other end goes out negative (-) line of exchange line with the party B-subscriber and connects; Relay (2) normal opened contact stator and party B-subscriber go out exchange line just (+) line connect its moving plate and outside line X ₁Connect, the stator of normal splice grafting point connects with relay (1) coil, and the other end of this coil is connected to a user and goes out on negative (-) line of exchange line; The end (D) that the automatic ground wire of user's transducer is put upside down and connect by two light-emitting diodes (5,6) is connected on the phone bridging line, the other end and capacitor (7) and voltage-stabiliser tube (8) and the circuit that the connects back ground connection of connecting, its bridging line D is ringing circuit and the starting circuit that constitutes two telephone sets.User's transducer is made up of integrated package (10,20), light-emitting diode, triode, diode, and the terminal 1,2 of integrated package (10) also connects the diode (11,12) of two serial connections, more oppositely and sending and receiving optical diode (13), terminal 2 and outside line X simultaneously ₁Connect, terminal 1 connects with automatic ground wire D by telephone set (14), terminal 5 and 6, be connected to respectively on the base stage and collector electrode of triode (15), triode (15) emitter connects with automatic ground wire D through diode (16), between the terminal 1 and 2 of integrated package (20) and the diode (22,23) that connects two serial connections more oppositely and sending and receiving optical diode (21), terminal 2 and outside line X simultaneously ₂Connect, terminal 1 connects with automatic ground wire D by telephone set (17), terminal 5 and 6, and base stage and the collector electrode with triode (19) connects respectively, and this transistor emitter is connected on the automatic ground wire D by diode (18).When telephone set (14) when carrying machine, relay (1) and integrated package (10) work are given to a user to outside line and are used, and when telephone set (17) when carrying machine, are worked outside line changed to b user by relay (2) and integrated package (20) and use.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.Fig. 1 is intra-office transducer (24) and user's transducer (25) draw bail schematic diagram of telephone line automatic switch; Fig. 2 is the circuit theory diagrams of telephone line automatic switch.Among the figure:

1. relay 15. triode X ₁, X ₂It is outdoor circuit

Relay 16. diode D, be automatic ground wire

Electrolytic capacitor 17.b substation a, be that a user goes out exchange line

Electrolytic capacitor 18. diode b, be that b user goes out exchange line

5. light-emitting diode 19. triodes

6. light-emitting diode 20. integrated packages

7. electrolytic capacitor 21. light-emitting diodes

8. voltage stabilizing didoe 22. diodes

9. ground wire 23. diodes

10. integrated package 24. intra-office transducers

11. diode 25. user's transducers

12. diode

13. light-emitting diode

14.a substation

The utility model operation principle: when a subsets (14) when carrying machine, the perfectly straight current circuit of phone inner contact structure is by terminal 1 → terminal 2 → X of ground wire 9 → 8 → 6 → D → 14 → integrated package 10 ₁→ 2(relay) normal splice grafting point → 1(relay) → a(-) negative 48 volts.At this moment, relay (1) action, normal splice grafting point leaves, the normal opened contact closure, triode (15) conducting, so circuit following change logical: a user go out exchange line (+) just → the 1(relay) normally opened contact → X ₂→ 15 → 16 → 14 → 10(integrated package) terminal 1 → terminal 2 → X ₁-2(relay) normal splice grafting point → 1(relay) → a(-) negative 48 volts, 9(ground, back at this moment) voltage between D is lower than the 8(voltage-stabiliser tube) the voltage stabilizing value, so disconnection ground connection is that a user's use is given in outside line.Restore so cut off DC channel relay (1) when a user is put machine, whole circuit restores.

The phone contact is connected DC circuit when b user 17 carries machine, by terminal 1 → terminal 2 → X of 9 → 8 → 6 → D → 17 → 20 ₂→ 1 normal splice grafting point → 2 → b(-) negative 48 volts make relay (2) action, 2 normal opened contact closures, and 19 conductings, circuit changes into: by b(+) → 2 normally opened contacts → X ₁Terminal 1 → terminal 2 → X of → 19 → 18 → 17 → 20 ₂→ 1 normal splice grafting point → 2 → b(-), at this moment voltage is lower than 8 voltage stabilizing value between back 9 and D point, so, the automatic ground wire disconnection, outside line changed to b user uses.

Send exchanging of negative 48 volts direct currents and 75 volt of 16 He Zhi by the negative wire (-) of automatic switch-board when a user of incoming call is talked about, superpose and send together, it exchanges by a(-) → normal splice grafting point → X of 3 → 2 ₁The negative half-wave of → 13(by 12,11 or terminal 1,2) → 14(phone electric capacity and bell) → the negative half-wave of 5(is by 6) → 7 → 9, telephone set bell ring at this moment.Course of action when a user carries machine and replys is identical with the course of action that a user carries machine.

When the b user of incoming call is talked about by switch (comprise program control, in length and breadth, the stepping switch) send by negative (-) line of b and to hand over straight superimposed current by normal splice grafting point → X of 4 → 1 ₂The negative half-wave of → 21(is by 23,22) → the negative half-wave 6 of 17 → 5() → 7 → 9 o'clock telephone set 17 bell rings, the action the when machine of carrying is replied such as above-mentioned carry motor-driven do identical.

The light-emitting diode of automatic ground wire is that the path that ring exchanges is again the ground connection that disconnects audible communication; Can pass through greater than two volts alternating voltage exactly, end less than 1.5 volts alternating voltages.Relay (1 and 2) is miniature electro-magnetic relay or uses reed switch relay that it moves electric current is 12 milliamperes.Integrated package is 4N25 or uses 4N36 that the BVCEO 〉=48V of every 4N model is available.Capacitor (3 and 4) is released to more than 0.5 second relay and is advisable, and adopts 100 microfarads.The voltage stabilizing value of voltage-stabiliser tube (8) is 24 volts ± 2 volts.

Phone spreads to huge numbers of families at present, need a large amount of outdoor circuits and the Home Telephone utilization rate is very low, the time of outdoor circuit 95% is dormant state, and the opportunity of using circuit simultaneously is still less, adopt the circuit automatic switch make two not the shared a pair of outside wire of jack per line phone can save the circuit of a pair of costliness.

It is good that the utility model is used on 2 kilohms of circuits communication effect, and low cost of manufacture, simple in structure, so volume is little, do not need outer power supply source simple installation and economy and durability.

Claims

1, a kind of telephone line transducer, it is characterized in that: form by telephone office's Internal Translator and user's transducer and automatic ground wire, each relay of the relay of intra-office transducer (1) shunt capacitor (3) relay (2) shunt capacitor (4) all has one group of two-way contact group, the stator of relay (1) normal opened contact and user go out exchange line a just (+) line connect its moving plate and outside line X ₂Connect, the stator of its normal splice grafting point connects with relay (2) coil, and this coil other end goes out negative (-) line of exchange line with the party B-subscriber and connects; Relay (2) normal opened contact stator and party B-subscriber go out exchange line just (+) line connect its moving plate and outside line X ₁Connect, the stator of normal splice grafting point connects with relay (1) coil, and the other end of this coil is connected to a user and goes out on negative (-) line of exchange line; The automatic ground wire of user's transducer is by light-emitting diode (5,6), capacitor (7), voltage-stabiliser tube (8) is formed, two light-emitting diodes (5) and (6) are just, negative pole put upside down parallel connection continue the back one end D be that automatic ground wire connects with the phone bridging line, the other end is connected in series ground connection with the circuit of capacitor (7) and voltage-stabiliser tube (8) parallel connection, user's transducer is by integrated package (10,20), light-emitting diode, triode, diode is formed, the terminal 1 of integrated package (10), the diode (11 of 2 two serial connections in parallel, 12), reverse more also sending and receiving optical diode (13), terminal 2 and outside line X simultaneously ₁Connect, terminal 1 by telephone set (14) connect with automatic ground wire (D), terminal 5 and 6, be connected to the base stage and the collector electrode of triode (15) respectively, triode (15) emitter connects with automatic ground wire D through diode (16), between the terminal 1 and 2 of integrated package (20) and the diode (22,23) that connects two serial connections more oppositely and sending and receiving optical diode (21), terminal 2 and outside line X simultaneously ₂Connect, terminal 1 connects with automatic ground wire D by telephone set (17), terminal 5 and 6, and base stage and the collector electrode with triode (19) connects respectively, and this transistor emitter is connected on the automatic ground wire D by diode (18).Formation a user carries machine a user's use is given in outside line, if b user carries machine b user's use is given in outside line.

2, a kind of telephone line transducer as claimed in claim 1, feature is: the end (D) that automatic ground wire is put upside down and connect by two light-emitting diodes (5,6) is connected on the phone bridging line, the other end and capacitor (7) and voltage-stabiliser tube (8) and the circuit that connects are connected in series back ground connection, and its bridging line D is ringing circuit and the starting circuit that constitutes two telephone sets.