CN2031986U - Multi-system type complete set magneto-telephone exchange - Google Patents
Multi-system type complete set magneto-telephone exchange Download PDFInfo
- Publication number
- CN2031986U CN2031986U CN 88212201 CN88212201U CN2031986U CN 2031986 U CN2031986 U CN 2031986U CN 88212201 CN88212201 CN 88212201 CN 88212201 U CN88212201 U CN 88212201U CN 2031986 U CN2031986 U CN 2031986U
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- CN
- China
- Prior art keywords
- circuit
- cord
- subscriber line
- darlington
- network access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004065 semiconductor Substances 0.000 claims abstract description 3
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 229920006351 engineering plastic Polymers 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Monitoring And Testing Of Exchanges (AREA)
Abstract
The utility model relates to a novel multisystem type complete set of magnet telephone exchangers. The subscriber circuit of the utility model is changed to be monitored and controlled by a semiconductor, a diode, an audion and a Darlington tube. The display of an original mechanical screen is changed to displayed by a light emitting diode, and a panel of the novel multisystem type complete set of magnet telephone exchangers is made of engineering plastics in one-step injection molding. The utility model has the advantages of simple structure, easy fabrication, little error, high sensitivity, stable performance and small energy consumption.
Description
The utility model belongs to a kind of magneto call telephone exchange in the post and telecommunications equipment.
Existing magneto call telephone exchange, its subscriber line circuit is talked about whole supervision, monitoring circuit and number plate and is belonged to mechanical electromagnet type, and volume is big, and action error is big, and sensitivity is low, and maintenance is difficult; Its network access interface difficulty, function singleness; And the complete machine unit panel adopts the sheet iron of easy oxidation and rusting, and finish paint easily comes off, and influences attractive in appearance.
It is a kind of on the basis of existing traditional magneto exchange that the purpose of this utility model is to provide, and adopts the former device of portions of electronics to transform, and it is simple in structure, the supporting magneto call telephone exchange of multi-modulation scheme easy to use.
The method that the utility model is finished is user number, and unit panel changes the engineering plastics single injection-molded into by sheet of metallic material, has eliminated that heavy mechanical structured member, electromagnet monitor, switching system changes crystal lamp and electronic switch gate circuit into; Improve reliability, reduced maintenance workload.The multiply-connected line of wiring system multiple connection of former machine complexity is changed into the printed circuit board (PCB) multiple connection.Having reduced obstacle rate operating set is changed into the board panel embedded type and is held by traditional wear-type and alleviate operator's labour intensity; Interface to automatic switching network has structurally increased the electronic dial system, newly-increased dial.Keypad is standby each other, relaying adopt device, the automatic control transmission ultrahigh frequency transmitter of operator supply unit, subscriber line circuit changed into being made up of diode, triode, Darlington transistor detect to monitor control, former machinery falls board and shows and to change diode displaying into, and action sensitivity height, life-span are long; In cord circuit, inserted anti-interference filter, the former night alarm circuit of being made up of a plurality of electromagnet or door switch circuit has been changed into semiconductor or the door digital circuit and the electronic audio device of multiterminal input; The network access interface circuit increased to the crossbar system automatic telephone supporting, the local telephone network farm work is supporting, be electronic digit pulse signal vibration dial-up circuit part; Cross-talk to cord circuit suppresses, and has used the Darlington device, improves string noise rejection ratio; User's lightning protection circuit is utilized Darlington photoelectric effect device, the thunder and lightning dangerous currents is inserted the earth automatically, the unlikely destruction of protection loom, after dangerous the disappearance, reduction automatically.
The utility model has the advantages that: simple in structure, make easily, highly sensitive, error is little, stable performance, less energy consumption.
Accompanying drawing 1 is a circuit theory main body block diagram of the present utility model, and Fig. 2 is supporting electronic digit pulse signal oscillating circuit figure.
Most preferred embodiment of the present utility model is that following each circuit is formed.(1) by subscriber's jack monitoring electric bridge, the subscriber line circuit that user number name display lamp holding circuit is formed; (2) form cord circuit by answering plug, filter, telegraph key, calling plug; (3) by hand generator, 20HZ pulse oscillator, (to automatic switching network interface kit electronic digit pulse signal, oscillating circuit and corresponding operator dial circuit), the control transformation telegraph key is formed the supporting ringing-current circuit of multi-modulation scheme; (4) form operator circuit by induction coil, amplitude limiter, electrophone, microphone circuit, loudspeaker monitoring circuit, control transformation telegraph key; (5) form the network access interface circuit by system conversion, control, interrupt circuit, the ringing-current circuit that changes; (6) form automatic exchange matching interface electronic dial circuit by telegraph key letter disk circuit digital circuit, oscillating circuit, monitoring circuit, change-over circuit; (7) demonstration crystal circuit for lamp, display lamp holding circuit are formed the whole testing circuit of words eventually by cord ringing signal bridge detection circuit, change-over circuit, words; (8) form night alarm circuit by multiterminal OR circuit, electronic audio circuit, commutation circuit; (9) form power circuit by A-battery, rectifier circuit, negater circuit.
Each circuit connect each other in conjunction with the accompanying drawings 1 further specify as follows:
The tandem of this machine is on the tandem terminal board, (accompanying drawing part omitted), caller needs and a certain user's communication, the connection of circuit is the subscriber's jack and the detection electric bridge user number name crystal display lamp holding circuit that is communicated with in parallel in subscriber line circuit, if the calling signal input is arranged, bright and the automatic maintenance of user number name lamp after the shaping conversion in subscriber line circuit, sending a high potential simultaneously changes through the multiterminal OR circuit, the unlocking electronic sounder together sends visible audible signal, the operator enables the answering plug in the cord circuit, in parallel with called consent insertion, the filter in parallel with answering plug passes through telegraph key simultaneously, calling plug inserts the conversation of called subscriber's consent.Subscriber line circuit is communicated with by cord circuit.Continue and insert simultaneously or the cross-over connection operator circuit in cord circuit, if called be far-end automatic switching network user then import connect the net circuit and the supporting electronic digit pulse signal of automatic switching network user interface oscillating circuit be communicated with work simultaneously.The operator dials, and exhalation is called to be continued through this machine cord circuit by the operator, finishes conversation.If called is near-end or far-end manual telephone system user, then the ringing-current circuit is communicated with the exhalation called subscriber with cord.Continue through this machine cord circuit by the operator and to finish conversation, regardless of user's standard, talking about whole testing circuit is connected across with cord circuit all the time, night alarm circuit is communicated with through change over switch and subscriber line circuit, meet when being worth fully night the caller incoming signal all this machine night alarm circuit monitoring send audible signal, remind the operator in time to continue, power circuit and each circuit communication provide power supply.
Subscriber's jack in the subscriber line circuit is newly to have added one group of conversation device of unlatching ultrahigh frequency transmitter power supply automatically in traditional consent structure, when connecting speech channel by the operator, gives the transmission circuit power devices, and purpose is energy-conservation to the post and telecommunications Subscriber Unit.
Claims (4)
1, the supporting magneto call telephone exchange of a kind of novel multi-modulation scheme, comprise subscriber line circuit, cord circuit, ringing-current circuit, operator circuit, network access interface circuit, talk about whole monitoring circuit, night alarm circuit and power circuit, its feature detects the supervision control circuit in subscriber line circuit by diode, triode and Darlington to be formed, and customer call shows the employing light-emitting diode; Cord circuit is equipped with anti-interference filter and is used to suppress the Darlington device of cross-talk; Night alarm circuit is semiconductor multiterminal OR circuit, in the electronic audio device is housed; The network access interface circuit comprises the electronic dial circuit and is used to produce the oscillating circuit of digital pulse signal; Described switch also comprises user's lightning protection circuit, has adopted the Darlington photoelectric effect device that the thunder and lightning dangerous currents is inserted automatically the earth; Talk about whole monitoring circuit and cord circuit bridging together, night alarm circuit is communicated with subscriber line circuit and cord circuit, power circuit and each circuit communication, and power supply is provided.
2, switch according to claim 1 is characterized in that each consent in the subscriber line circuit has one group of conversation to open the device of ultrahigh frequency transmitter power supply automatically.
3, switch according to claim 1 is characterized in that adopting between each above-mentioned circuit printed circuit board (PCB) to connect.
4, switch according to claim 1 is characterized in that having adopted dial in the network access interface circuit relay that keypad is standby each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212201 CN2031986U (en) | 1988-02-13 | 1988-02-13 | Multi-system type complete set magneto-telephone exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212201 CN2031986U (en) | 1988-02-13 | 1988-02-13 | Multi-system type complete set magneto-telephone exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2031986U true CN2031986U (en) | 1989-02-01 |
Family
ID=4845529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88212201 Withdrawn CN2031986U (en) | 1988-02-13 | 1988-02-13 | Multi-system type complete set magneto-telephone exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2031986U (en) |
-
1988
- 1988-02-13 CN CN 88212201 patent/CN2031986U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |