CN108566495A - A kind of subscriber's line circuit for supporting to generally call function - Google Patents
A kind of subscriber's line circuit for supporting to generally call function Download PDFInfo
- Publication number
- CN108566495A CN108566495A CN201810556712.XA CN201810556712A CN108566495A CN 108566495 A CN108566495 A CN 108566495A CN 201810556712 A CN201810556712 A CN 201810556712A CN 108566495 A CN108566495 A CN 108566495A
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- Prior art keywords
- relay
- current
- module
- circuit
- ringing
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/80—Telephone line holding circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
- H04M19/047—Vibrating means for incoming calls
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention discloses a kind of subscriber's line circuit for supporting to generally call function, including telephone interface, dispatcher interface, dislodging machine module, relay, ringing-current module, constant-current source circuit and decoding chip circuit, the telephone interface connects dislodging machine module, the dislodging machine module connects dispatcher interface by relay, and the relay is separately connected ringing-current module, constant-current source circuit and decoding chip circuit.Through the above way, the present invention provides a kind of subscriber's line circuit for supporting to generally call function, the problem of in case of emergency all users of complete machine can not being carried out to force long-time ring for existing dispatcher, by for each telephone set independence dispensing constant current unit, preferably avoid because can not the opportunity delay of acquisition control centre's order that causes of ring in time, significantly reduce underground coal mine, the serious accident in places such as medical institutions probability of happening.
Description
Technical field
The present invention relates to telephone exchange field more particularly to a kind of subscriber's line circuits for supporting to generally call function.
Background technology
Dispatcher all users of complete machine can not in case of emergency be carried out force long-time ring the problem of, avoid due to
Can not timely ring, be delayed the opportunity that the personnel in underground coal mine or other important places obtain control centre's order in time, from
And increase the probability for causing serious accident.
Invention content
The invention mainly solves the technical problem of providing a kind of subscriber's line circuits for supporting to generally call function, for existing scheduling
Machine all users of complete machine can not in case of emergency be carried out force long-time ring the problem of, by for each telephone set independence
Dispensing constant current unit, preferably avoid because can not in time ring cause acquisition control centre's order opportunity delay, significantly drop
The probability of happening of the serious accident in the places such as low underground coal mine, medical institutions.
In order to solve the above technical problems, one aspect of the present invention is：It provides and a kind of supports to generally call function
Subscriber's line circuit, including telephone interface, dispatcher interface, dislodging machine module, relay, ringing-current module, constant-current source circuit and
Decoding chip circuit, the telephone interface connect dislodging machine module, and the dislodging machine module connects dispatcher by relay
Interface, the relay are separately connected ringing-current module, constant-current source circuit and decoding chip circuit, and the dislodging machine module includes
The optocoupler that is connect with telephone interface and setting diode on the line, the first electrolytic capacitor, the second electrolytic capacitor, first
It includes the ringing-current generation module being connect with relay that resistance, second resistance and thermistor, which protect device, the ringing-current module,
And resistance, thermistor protection device and the varistor of setting on the line protect device.
In a preferred embodiment of the present invention, the relay by two normally closed ports respectively with constant-current source circuit and
Decoding chip circuit connects.
The beneficial effects of the invention are as follows：A kind of subscriber's line circuit for supporting to generally call function provided by the invention, for existing tune
Degree machine all users of complete machine can not in case of emergency be carried out force long-time ring the problem of, by for each telephone set it is only
Vertical dispensing constant current unit is preferably avoided because can not be delayed on opportunity of acquisition control centre's order for causing of ring in time, significantly
Reduce the probability of happening of the serious accidents in places such as underground coal mine, medical institutions.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is a kind of structure chart for supporting to generally call a preferred embodiment of the subscriber's line circuit of function of the present invention；
Fig. 2 is a kind of structure chart for supporting to generally call a preferred embodiment of the subscriber's line circuit of function of the present invention；
Fig. 3 is a kind of structure chart for supporting to generally call a preferred embodiment of the subscriber's line circuit of function of the present invention.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figures 1 to 3, the embodiment of the present invention includes：
A kind of subscriber's line circuit for supporting to generally call function, including telephone interface 1, dispatcher interface 2, dislodging machine module 3, after
Electric appliance 4, ringing-current module 5, constant-current source circuit 6 and decoding chip circuit 7, the telephone interface 1 connect dislodging machine module 3,
The dislodging machine module 3 connects dispatcher interface 2 by relay 4, and the relay 4 is separately connected ringing-current module 5, constant-current source
Circuit 6 and decoding chip circuit 7, the dislodging machine module 3 include that the optocoupler being connect with telephone interface 1 and setting are online
The diode of road, the first electrolytic capacitor, the second electrolytic capacitor, first resistor, second resistance and thermistor protect device,
The ringing-current module 5 includes that resistance, the thermistor of the ringing-current generation module being connect with relay 4 and setting on the line are protected
It protects device and varistor protects device.
Wherein, the relay 4 is connect with constant-current source circuit 6 and decoding chip circuit 7 respectively by two normally closed ports.
Operation principle is summarised as：Ringing-current voltage and ringing-current electric current on telephone wire when ring, are not united by complete machine public power
One supply is changed to every module unit plate separate configurations, and -48V voltages are supplied to ringing-current module 55, generates ringing-current voltage and is supplied to this list
Subscriber's line circuit in first plate uses, and solves ringing-current and cannot be satisfied gate number user ring simultaneously by the unified supply of complete machine, causes machine
Device failure, phone can not ring or the leptophonia problems of ring.Specifically, the two lines that telephone set is connect with dispatcher, respectively
A1 and B1, A1 connect 1 end of thermistor protection device 1RT1, are brought out from 2 and protect the 1 of device 1RV1 with varistor respectively after coming
End and 1 end of resistance 1R4,1 end of electrolytic capacitor 1EC2,2 ends of electrolytic capacitor 1EC1,2 ends of diode 1D1 and optocoupler 1OC1
2 ends be connected；The 2 of varistor protection device 1RV1 are terminated into EARTH；2 ends of resistance 1R4 and 8 ends of relay 441RL2,
2 ends of electrolytic capacitor 1EC2,2 ends of resistance 1R2 are connected；1 end of optocoupler 1OC1 and 1 end of diode 1D1, electrolytic capacitor 1EC1
1 end, resistance 1R2 1 end be connected；The 4 ends connection dislodging machine information test point DET1 of optocoupler output 3 termination GND, optocoupler 1OC1
With 2 ends of resistance 1R1, another termination VCC of resistance；B1 connects 1 end of thermistor protection device 1RT2, is brought out from 2 to be followed by pressing
3 ends at 1 end and relay 441RL2 of quick resistance protection device 1RV2；The 2 of varistor protection device 1RV2 terminate into
EARTH；Two groups of normal-closed ends of relay 441RL2 meet A and B respectively, are connected to subsequent constant-current source circuit 6 and codec chip electricity
Road 7；- 48V voltages are supplied to 3 and 4 ends of ringing-current generation module U1, GND to connect 5 ends of ringing-current generation module U1, and ringing-current generates mould
2 ends at 1 end of the 1 end connection varistor protection device 1RV12 of block U1 and the 1RT12 of thermistor protection device；Temperature-sensitive electricity
1 end of resistance protection device 1RT12 is connected with 2 ends of resistance 1R14；7 ends of the 1 end cut-in relay 441RL2 of resistance 1R14；Bell
2 ends at 2 ends and thermistor protection device 1RT11 of the 2 ends connection varistor protection device 1RV12 of generation module U1 are flowed,
1 end of thermistor protection device 1RT11 is connected with 4 ends of relay 441RL2.
In conclusion the present invention provides a kind of subscriber's line circuits for supporting to generally call function, for existing dispatcher urgent
In the case of the problem of all users of complete machine can not be carried out to force long-time ring, by for each telephone set independence dispensing constant current
Unit, preferably avoid because can not in time ring cause acquisition control centre's order opportunity delay, significantly reduce coal mine
Under, the probability of happening of the serious accident in places such as medical institutions.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (2)
1. a kind of subscriber's line circuit for supporting to generally call function, which is characterized in that including telephone interface, dispatcher interface, dislodging machine
Module, relay, ringing-current module, constant-current source circuit and decoding chip circuit, the telephone interface connect dislodging machine module,
The dislodging machine module connects dispatcher interface by relay, and the relay is separately connected ringing-current module, constant-current source circuit
And decoding chip circuit, the dislodging machine module include two of the optocoupler being connect with telephone interface and setting on the line
Pole pipe, the first electrolytic capacitor, the second electrolytic capacitor, first resistor, second resistance and thermistor protect device, the ringing-current
Module include resistance, the thermistor of the ringing-current generation module that connect with relay and setting on the line protect device and
Varistor protects device.
2. the subscriber's line circuit according to claim 1 for supporting to generally call function, which is characterized in that the relay passes through two
Normally closed port is connect with constant-current source circuit and decoding chip circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556712.XA CN108566495B (en) | 2018-05-31 | 2018-05-31 | User circuit supporting full calling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810556712.XA CN108566495B (en) | 2018-05-31 | 2018-05-31 | User circuit supporting full calling function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108566495A true CN108566495A (en) | 2018-09-21 |
| CN108566495B CN108566495B (en) | 2023-10-10 |
Family
ID=63552778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810556712.XA Active CN108566495B (en) | 2018-05-31 | 2018-05-31 | User circuit supporting full calling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108566495B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4827503A (en) * | 1986-10-20 | 1989-05-02 | Fujitsu Limited | Integrated ringing circuit and a ring trip circuit for the same |
| US5694465A (en) * | 1995-03-16 | 1997-12-02 | Advanced Micro Devices, Inc. | Integrated ringer for short telephone lines |
| CN2394386Y (en) * | 1999-09-23 | 2000-08-30 | 黑龙江大学科技产业发展公司 | Vibrator for telephone calling |
| US6128375A (en) * | 1997-11-12 | 2000-10-03 | Punzalan; Edilberto Abad | Intelligent multifunction device for analog telephone subscriber loop interfaces |
| US6570984B1 (en) * | 1999-04-20 | 2003-05-27 | Eci Telecom Ltd. | Ring trip detection circuit and method for subscriber line interface |
| JP2003283688A (en) * | 2002-03-20 | 2003-10-03 | Nonomura Denshi Giken:Kk | Emergency monitor informing apparatus |
| US6819761B1 (en) * | 1999-09-16 | 2004-11-16 | Silicon Laboratories, Inc. | Programmable constant current “off hook” circuit |
| CN1630327A (en) * | 2003-12-19 | 2005-06-22 | 上海贝尔阿尔卡特股份有限公司 | A circuit for reducing ring current source power consumption |
| US20060183460A1 (en) * | 2005-02-17 | 2006-08-17 | Sudharshan Srinivasan | Instant help security system for emergency help using 2G, 2.5G and 3G cellular wirelesses half duplex call |
| CN102457621A (en) * | 2010-10-19 | 2012-05-16 | 长沙常有通信设备有限公司 | Single-board type command amplification board |
| CN103078692A (en) * | 2011-10-25 | 2013-05-01 | 上海山源电子电气科技发展有限公司 | Mine emergency command communication system and method |
| KR101261996B1 (en) * | 2012-01-12 | 2013-05-08 | 현대엘리베이터주식회사 | Emergency call apparatus without power supply of elevator |
| CN204068990U (en) * | 2014-08-27 | 2014-12-31 | 北京迪为双兴通讯技术有限公司 | Mine is wired, broadcast integrated dispatching communication system |
| CN208210080U (en) * | 2018-05-31 | 2018-12-07 | 杭州小犇科技有限公司 | A kind of subscriber's line circuit for supporting to generally call function |
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2018
- 2018-05-31 CN CN201810556712.XA patent/CN108566495B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4827503A (en) * | 1986-10-20 | 1989-05-02 | Fujitsu Limited | Integrated ringing circuit and a ring trip circuit for the same |
| US5694465A (en) * | 1995-03-16 | 1997-12-02 | Advanced Micro Devices, Inc. | Integrated ringer for short telephone lines |
| US6128375A (en) * | 1997-11-12 | 2000-10-03 | Punzalan; Edilberto Abad | Intelligent multifunction device for analog telephone subscriber loop interfaces |
| US6570984B1 (en) * | 1999-04-20 | 2003-05-27 | Eci Telecom Ltd. | Ring trip detection circuit and method for subscriber line interface |
| US6819761B1 (en) * | 1999-09-16 | 2004-11-16 | Silicon Laboratories, Inc. | Programmable constant current “off hook” circuit |
| CN2394386Y (en) * | 1999-09-23 | 2000-08-30 | 黑龙江大学科技产业发展公司 | Vibrator for telephone calling |
| JP2003283688A (en) * | 2002-03-20 | 2003-10-03 | Nonomura Denshi Giken:Kk | Emergency monitor informing apparatus |
| CN1630327A (en) * | 2003-12-19 | 2005-06-22 | 上海贝尔阿尔卡特股份有限公司 | A circuit for reducing ring current source power consumption |
| US20060183460A1 (en) * | 2005-02-17 | 2006-08-17 | Sudharshan Srinivasan | Instant help security system for emergency help using 2G, 2.5G and 3G cellular wirelesses half duplex call |
| CN102457621A (en) * | 2010-10-19 | 2012-05-16 | 长沙常有通信设备有限公司 | Single-board type command amplification board |
| CN103078692A (en) * | 2011-10-25 | 2013-05-01 | 上海山源电子电气科技发展有限公司 | Mine emergency command communication system and method |
| KR101261996B1 (en) * | 2012-01-12 | 2013-05-08 | 현대엘리베이터주식회사 | Emergency call apparatus without power supply of elevator |
| CN204068990U (en) * | 2014-08-27 | 2014-12-31 | 北京迪为双兴通讯技术有限公司 | Mine is wired, broadcast integrated dispatching communication system |
| CN208210080U (en) * | 2018-05-31 | 2018-12-07 | 杭州小犇科技有限公司 | A kind of subscriber's line circuit for supporting to generally call function |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108566495B (en) | 2023-10-10 |
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