CN86103894A - Crossbar semi-automatic telephone subscriber exchanger - Google Patents
Crossbar semi-automatic telephone subscriber exchanger Download PDFInfo
- Publication number
- CN86103894A CN86103894A CN 86103894 CN86103894A CN86103894A CN 86103894 A CN86103894 A CN 86103894A CN 86103894 CN86103894 CN 86103894 CN 86103894 A CN86103894 A CN 86103894A CN 86103894 A CN86103894 A CN 86103894A
- Authority
- CN
- China
- Prior art keywords
- circuit
- subscriber
- crossbar
- relay
- subscriber line
- 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.)
- Pending
Links
Images
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
Abstract
A kind of crossbar semi-automatic telephone subscriber exchanger.It combines the two advantage of artificial and crossbar system automatic switch-board.Each subscriber line circuit is only used 1 relay in this machine.And form the two-wire matrix by this contact; Every cord circuit is only used 3 relays.Be communicated with the busy tone circuit by vertical excellent off-normal spring contact; There is 1,2,4,5 yard direct current signal of a transmission to finish the keypad that various types of calls continues to be needed.Its control circuit comprises by depositing, decoding, two-wire test coordinate, driving " four unify " circuit of forming.Adopt the less series regulator of power consumption.30-60-90 of capacity.Can use for enterprises and institutions such as office, army and rural area are inner.
Description
The utility model is a kind of electromechanical subscriber phone automanual switchboard, belongs to the crossbar system standard, is installed in internal institution for using between the user.
Private branch exchange divides magnetite, common-battery, crossbar system and electron exchanger.The first two is planted and is manual telephone switch, and back two kinds is dial exchange.The manual telephone switch standard falls behind, the wiring of the moving operation of armrest cord, slow motion not only, operator's labour intensity is big, and can take place when the misconnection and the phenomenon of bumping cord, and particularly the speech transmissions of this switch is of poor quality, transmission range is short, and parts wear and tear easily, and maintenance load is big, the still manual exchange of this backward standard that generally use at present in China rural area.The relay quantity that existing crossbar system Private Branch Exchange PBX uses is many, and corresponding power consumption is also many, complex circuit, and the price height, maintenance difficulty is big.It can not supportingly use magnetite, central battery exchange and the phone of the present recoverable amount maximum in China rural area on the other hand, so, generally promote the use of also in China rural area and to have any problem.
Present full-automatic crossbar system Private Branch Exchange PBX below 100 is furnished with ac rectifying power source mostly, also there are some structural defectives, adopt the parallel connection type stabilized voltage power supply as power unit, its idle power consumption is big, causes waste of energy, but also brings heating problem, because caloric value is big, have to power unit the is placed top of whole switch cabinet, this top-heavy layout is extremely unreasonable, has increased operator's labour intensity.
The purpose of this invention is to provide a kind of a kind of semi-automatic crossbar system standard private branch exchange between manual exchange and automatic switch-board that is mainly used in the rural area of suitable China's national situation.It is more superior than magnetite, central battery exchange, and is more simple in structure than automatic switch-board, with low cost, keeps in repair easily, and don't loses the major advantage of full-automatic crossbar switch.
Scheme of the present utility model is: the circuit to the existing full-automatic switch complex of crossbar system omits, part is simplified, complete machine relay quantity and back panel wiring quantity are significantly reduced, power unit has been done bigger change changed into series regulator by the parallel connection type stabilized voltage power supply.Concrete measure is as follows:
1, saved register(system) part in traditional crossbar system automatic switch-board, replaced the function of " note " of former register(system) by operator's manpower memory,
2, adopt one to send the 1.2.4.5. sign indicating number and represent Subscriber Number and finish the function that keypad that calling and called continue replaces former register(system) " to send out ",
3, adopt that calling and called are used alternatingly by depositing, decoding, the test of two-wire coordinate, drive " four unify " control circuit that this four part is formed,
4, kept the calling subscriber identical signal display apparatus of breathing out, saved identifier with common-battery system,
5, in subscriber line circuit, set up with control circuit in the corresponding two-wire matrix circuit of two-wire coordinate part of detecting, in order to the user is tested in the busy spare time,
6, each user only with a relay and one in order to stoping the electric unidirectional breakover element that pours in down a chimney,
7, send the busy tone circuit to change into by cord circuit and send busy tone, its route is as follows: caller feed relay-subscriber line circuit A, B line in the vertical excellent off-normal spring movable contact-cord circuit of busy tone generator-called end, only inhale vertical rod when sending busy tone, and do not inhale horizontal bar,
8, cord circuit only contains three relays, but its function is identical with the function of automatic switch-board cord circuit, and they are caller feed relays, called feed relay and ringing relay,
9, power supply has adopted unique series connection voltage regulation way, and power unit comprises transformer, rectifier filter, adjustment pipe, comparison amplifier, reference voltage, overload protection and this several sections of sampling unit.
Above measure makes the utility model compare with the full-automatic crossbar switch of same capability, and structure is greatly simplified, and number of relays subtracts greatly, sees following table (is that example compares with 90 switches) for details:
Description of drawings of the present utility model:
Fig. 1 is the trunking scheme schematic diagram of this machine.
Fig. 2 is the frame Pareto diagram of complete machine.
Fig. 3 is the subscriber line circuit figure of this machine.
Fig. 4 is the two-wire coordinate that this machine subscriber line circuit contact is formed.
Fig. 5 is the control circuit of " four unifications ".
Fig. 6 send the busy tone circuit.
Fig. 7 is the call proceeding schematic diagram of this machine.
Fig. 8 is the power circuit block diagram.
The detailed description of embodiment of the present utility model:
Combine the advantage of the simple and crossbar system automatic switch-board of common battery switchboard circuit, passed through the change of circuit structure, produced new crossbar system automanual switchboard (series is 30,60,90), with 90 be example, see Fig. 1.
90 have 3 AX1 electric wire connecting junctions, 3 AX2 electric wire connecting junctions, its model is PT501, and 90 subscriber line circuits, 18 cord circuits, 9 out-trunks, 4 incoming trunk circuits, 1 control circuit, 1 operator circuit, 1 console and power supply, busy tone and ringing-current circuit are formed.
From trunking scheme as seen, to cord circuit, the called subscriber is also like this by the one-level electric wire connecting junction for the calling subscriber, no link selection, and circuit is simple so control continues.Compare with full-automatic crossbar switch, save register(system), register function is finished by typing key by the operator.Caller, the called number sent by typing key all deposit same register circuit in the control circuit in, and its order can be controlled by operator's push-key.After control circuit receives numbers of calling and called parties, select an idle cord circuit voluntarily, and be communicated with.In case control finishes, the cord circuit that is switched on continues ring from the called extension set of trend, send IRT interrupted ringing tone to the calling subscriber, and called extension set is got machine and can be conversed.During conversation, cord circuit is occupied, has lamp to show on the console.End of conversation, caller extension set and called extension set on-hook, cord circuit and electric wire connecting junction discharge voluntarily, do not need the operator to discharge processing.
90 machines are made up of two frames, and element arrangements is seen Fig. 2.
A frame, B frame are formed 90 switches.Wherein the A frame is the control frame, the user is housed No. 10～No. 39, go into relaying RJ1-4, out-trunk CJ1-3,60 of fuses, I AX1, two, four 10 * 20 terminal boards of II AX2 electric wire connecting junction and power supply, sound flow device; The B frame is equipped with user, out-trunk CJ4-6, out-trunk CJ7-9, II AX1, II AX2, III AX1, four electric wire connecting junctions of III AX2 and four 10 * 20 terminal boards No. 40～No. 69, No. 70～No. 99.The A frame can independently be formed one 30 machine, and the B frame just expands frame (the B frame can not be formed a machine separately).If form 60 machines, on the basis of A frame, the part equipment of configuration B frame: user No. 40～No. 69, out-trunk CJ4-6, II AX1, two electric wire connecting junctions of II AX2.If forming 90 machine B framves will assort by figure.
According to arrangement, the user has bought 30 machines, can expand capacity to 60 or 90 as required respectively.
During the A frame was arranged, as No. 10～No. 39 users, the relay of out-trunk CJ1-3 drew one by one.User No. 40～No. 69 in the B frame, out-trunk CJ4-6 relay are arranged identical with the A frame, and the B frame belongs to omissive representation.
1. subscriber line circuit is shown in Figure 3, uses a relay that has Third Mate's back contact, an indicator light and a unidirectional breakover element and three leads of A, B, C that are connected to electric wire connecting junction.
The user gets machine, and the indicator light YD that is contained on the console passes through A, B line, and the contact 11-12 and the 21-22 of substation and Y relay are bright, and expression has calling.The operator is according to the corresponding number of bright lamp, and button is typewrited, and control circuit is just connected this user and operator, connects back Y relay energized, and lamp goes out.
Shown in Figure 4, another winding point 31-32 of each user Y relay and unidirectional breakover element can be formed a two-wire test matrix.
90 users have 90 groups of Y relay tips, and annexation is as follows: identical tens multiple connection is linked to be 9 line BS1-9, and identical units multiple connection is linked to be 10 line BG1-10.90 users connect into 19 lines altogether, form a two-wire test coordinate.This matrix is used for testing the called subscriber busy spare time, specifies when control circuit and sends positive negative potential here from BG, BS line, can test the called subscriber.For example test the user No. 21, control circuit is sent positive potential here from tens BS2 line, sends negative potential here on the units BG1 line.No. 21 users are as belonging to the free time, and the 21Y relay is not inhaled moving, and the 31-32 contact is not opened, positive potential is sent into from the BS2 line, and through unidirectional breakover element, 21Y relay 31-32 contact is to the BG1 line, can inhale the relay of electronegative position on this line, represent No. 21 user's sky.If positive potential can't be communicated with negative potential on the BG line on the BS line, represent that this user is busy.Control circuit can be made different disposal successively.Wherein, the unidirectional conducting effect of diode can prevent that positive potential from pouring in down a chimney to other line, in order to avoid test errors.
2. control circuit is to finish the key equipment that various types of calls continues.Wherein, deposit, decipher, test, drive " four unifications " circuit (see figure 5).Form by 9 relays and 4 winding points heap.Ten of users and units that the typewriting of operator's button is sent here are deposited by two group relay S1, S2, S4, S5 and G1, G2, G4, G5 and BS relay.The 1.2.4.5. sign indicating number that S and G relay are sent here according to typing key translates Subscriber Number.2 winding points heap is used for controlling user test, tens decoding with relays output BS1-9, units decoding with relays output BG1-10.These 19 lines connect one to one mutually with the BS1-9 and the BG1-10 of user's two-wire matrix of Fig. 4.Tens decoding is sent positive potential from the BS line, and process user's two-wire matrix and subscriber line circuit contact (Y relay) are linked on the units decoding BG line and be communicated with the O relay, thus tested user's sky, control circuit O relay energized.If the busy O relay of user is not inhaled, inhale movingly and inhale relay M slowly, during the test subscriber, the Subscriber Number that BS and BG line are sent here according to typing key only respectively has an output, so only survey a user during test.As make a call to No. 22, then BS2, BG2 have positive negative potential.
Other two groups of identical contacts heap is horizontal bar and the conversion rod that is used for driving electric wire connecting junction, promptly HA, HB and H1-0 wherein HA, HB, HC(conversion rod is not inhaled is HC) corresponding with user's tens, H1-0 is corresponding with user's units.
When test subscriber's sky, the O relay energized is inhaled moving HA, HB and H1-0 by this 2 winding point.If the user is busy, the M relay energized, the horizontal bar and the conversion that then do not drive above-mentioned electric wire connecting junction are excellent.
In order to simplify circuit, save relay, calling and called share one group of decoding register circuit.Operator elder generation button is squeezed into calling number, replys back inquiry called number, pull called grouping key after, control circuit inserts cord circuit to the calling subscriber earlier, and removes register circuit.Because operator's push-key needs the 100-200 millisecond, only need a few tens of milliseconds and caller inserted cord circuit and remove register circuit, so but operator's continued operation can't produce faulty operation.The operator can beat called number again, and this moment, called number still deposited this register circuit in.
3. send busy tone circuit (see figure 6).
Because this exchange subscriber circuit is a relay only, can't finish and send the busy tone function, so sending, busy tone is arranged in the cord circuit, and cord circuit has only three relays, and they are called feed SB of caller feed SZ and ring SL.Be that cord circuit has three kinds of situations should send busy tone: promptly The Calling Party Hooks On called tin of busy tone; Called Onhook, busy tone is listened in caller; Called Busy is also sent busy tone by cord circuit to the calling subscriber.The local circuit arrangement is a called subscriber busy, electric wire connecting junction is not inhaled horizontal bar, only inhales vertical rod, utilizes the off-normal spring ZL11-12 normally opened contact of vertical rod to connect the busy tone circuit, and the tertiary coil of the SA feed relay by cord circuit is coupled on calling subscriber's the A, B line, makes the calling subscriber listen busy tone.Because called horizontal bar is not inhaled, and is not communicated with called extension set, so the calling subscriber listens busy tone can not have influence on the called subscriber who is conversing.
4. call proceeding process is seen Fig. 7
Call out in the switch three kinds of situations are arranged: call extension extension set, call extension outside line, External Call extension set.Here be example with the call extension extension set:
Suppose No. 50 users of No. 10 customer calls.
When No. 10 users get machine, when No. 10 indicator lights were bright on the console, operator's button was squeezed into No. 10, deposits register circuit in No. 10.Decoding output, the test subscriber.The operator pulls listening key, this moment control circuit drive the vertical rod of electric wire connecting junction, horizontal bar, with No. 10 users and operator's connection.The operator inquires called number, pulls the user grouping key, and control circuit is selected an idle cord circuit, and the calling subscriber is inserted the calling terminal of cord circuit.Then, remove register circuit, receive called No. 50 that the operator squeezed into.After the decoding register circuit translated No. 50, promptly BS5, BG0 sent positive negative signal, and No. 50 users are tested.If No. 50 user's skies, the O relay energized.Inhale moving called HB and H5 horizontal bar and according to the corresponding vertical rod of selected cord circuit, the called subscriber is inserted the cord circuit called end by the contact heap that drives electric wire connecting junction, cord circuit sends interrupted ringing automatically to called subscriber's phone.Simultaneously send IRT interrupted ringing tone through cord circuit to the calling subscriber, control circuit discharges automatically, and the operator can handle other calling.
No. 10 users and No. 50 user's communications are finished, and after both sides' on-hook, cord circuit restores automatically.
5. series connection stabilized voltage power supply: (see figure 8)
The power supply of this machine needs a voltage to be-60V the DC power supply of the about 4A of electric current.This power supply be with civil power (220V ± 10%) through the transformer step-down, through bridge rectifier, and then become more level and smooth direct current through capacitor filtering, obtain galvanic current by voltage stabilizing circuit at last and press output.Its basic comprising as shown in Figure 8.
Change greatly according to this machine operating current (load), the characteristics that idle time is many, if adopt the voltage stabilizing of parallel voltage-stabilizing mode, the reactive power consumption of power supply is too big.So this machine adopts the tandem stabilized voltage power supply.
Voltage stabilizing circuit comprises " sampling ", " benchmark ", " comparison ", " adjustment " and " overload protection " five parts.Its course of work is: no matter be the variation that the change of fluctuation (allowing ± 10%) owing to the exchange line voltage or load current causes output voltage, and will be by the sample circuit variable signal of taking a sample out.The variable signal of this taking-up is compared with reference voltage (being obtained by voltage-stabiliser tube usually).Signal after relatively amplifying circuit will compare amplifies, and delivers to the base stage of adjusting pipe.Control the pressure drop of adjusting pipe with it, reduce the output voltage fluctuation, obtain the purpose of stable output to reach.Wherein " overload protection " is to prevent load current excessive (even load short circuits), and protection is adjusted pipe and burnt out, and the safeguard measure of setting up.
6. the scope of application of switch:
1), the usable as internal call extension,
2), extension subscriber calls out the user of Local Exchange,
3), the user of Local Exchange can insert extension subscriber by operator switching,
4), can cooperate (magnetite, common-battery, automatically) with the Local Exchange of different systems,
5), the user can use automatic phone or common-battery phone,
6), the operator can hang toll telephone or call out local user for extension subscriber so can substitute the family by the user of External Call Local Exchange.
Present embodiment is compared with the full-automatic crossbar switch of same capability, except relay quantity reduces, also has following advantage:
With 90 is example
1. the conversation cord circuit of this machine is 18, and the relaying of coming in and going out is 13,
Full-automatic switch conversation cord circuit is 12, and the relaying of coming in and going out is 12.
2. this machine maximum power dissipation is half of full-automatic switch, and the static consumption of this machine is few, and full-automatic switch quiescent dissipation is bigger.
3. the cabinet volume of this machine is 2/3rds of a full-automatic switch.
4. the weight of this machine is 2/3rds of full-automatic switch.
5. the cost of this machine is lower, thus the full-automatic switch of close prices 1/2nd.
Though this machine continues by operator's button operation, but full-automatic switch calling continues and still will be transferred by the operator, so compare with full-automatic switch, only increase operator's workload, and operator's workload be far below artificial common-battery, magneto operator's workload.
Revisal: 86103894
After the preceding revisal of the capable revisal of file name page or leaf
Sampling unit ... the unit
" the electric wire connecting junction model is in 42 addings
PT501”
6 inverses 3 ... after " promising ", ask ... after " replying ", ask
Ask called number ... ask called number,
" cord circuit has only three to continue in 75 addings
Electrical equipment, they are caller feeds
SZ, called feed SB and
Ring SL.”
Claims (2)
1, a kind of crossbar semi-automatic telephone subscriber exchanger, it comprises subscriber line circuit, control circuit, the equipment that continues, cord circuit, go out incoming trunk circuit, sound flow device and power unit, it is characterized by:
The p-wire of A, subscriber line circuit is formed the two-wire matrix, and its identical tens is multiplexed to 9 lines, and its identical units is multiplexed to 10 lines, and each subscriber line circuit all has one to stop the electric unidirectional breakover element that pours in down a chimney and an indicator light,
B, in subscriber line circuit, there is one to be similar to the calling subscriber who uses on the central battery exchange signal display apparatus of breathing out,
C, control circuit include to be deposited, the test of decoding, two-wire coordinate, drives this four parts, become the new type control circuit of " four unifications ", wherein ten bit lines of two heap output contacts of two-wire coordinate test circuit heap, nine ten bit lines become to be connected one to one with nine ten bit lines with ten bit lines of subscriber line circuit two-wire matrix p-wire respectively, control circuit has two heap output contacts heap to drive conversion rod HA, the HB and the horizontal bar Hl～HO of crossbar switch respectively in addition
D, one are used to send the 1.2.4.5. sign indicating number and represent Subscriber Number and finish the keypad that various types of calls continues, and the 1.2.4.5. sign indicating number is a direct current signal,
E, order of connection send the busy tone circuit for " caller feed relay-subscriber line circuit A, B line in the vertical excellent off-normal spring movable contact-cord circuit of busy tone generator-called end ",
F, a cord circuit of being made up of three relays, they are caller feed relay, called feed relay and ringing relay.
2, as the described crossbar semi-automatic telephone subscriber exchanger of claim 1.; it is characterized in that; described power supply is a series connection voltage regulation type power supply, and it includes these several parts of transformer, rectifying and wave-filtering, adjustment pipe, relatively amplification, reference voltage, overload protection and sampling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86103894 CN86103894A (en) | 1986-06-03 | 1986-06-03 | Crossbar semi-automatic telephone subscriber exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86103894 CN86103894A (en) | 1986-06-03 | 1986-06-03 | Crossbar semi-automatic telephone subscriber exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86103894A true CN86103894A (en) | 1987-12-16 |
Family
ID=4802232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86103894 Pending CN86103894A (en) | 1986-06-03 | 1986-06-03 | Crossbar semi-automatic telephone subscriber exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86103894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133513A (en) * | 2013-05-03 | 2014-11-05 | 深圳市海洋王照明工程有限公司 | Voltage stabilizing circuit |
-
1986
- 1986-06-03 CN CN 86103894 patent/CN86103894A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133513A (en) * | 2013-05-03 | 2014-11-05 | 深圳市海洋王照明工程有限公司 | Voltage stabilizing circuit |
| CN104133513B (en) * | 2013-05-03 | 2016-04-27 | 深圳市海洋王照明工程有限公司 | A kind of mu balanced circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN86103894A (en) | Crossbar semi-automatic telephone subscriber exchanger | |
| CN1138279A (en) | Program-controlled exchange based honeycomb concentration system communication method and system | |
| CN101697567B (en) | Method and system for realizing nationwide virtual telephone exchange service | |
| CN213693834U (en) | Centralized control scheduling voice terminal equipment of electric power system | |
| EP0714193A3 (en) | Improved telecommunication system through mains electricity conductors | |
| CN100562039C (en) | A kind of call connection method | |
| CN200956646Y (en) | Dual-mode small-sized switchboard | |
| CN100426810C (en) | A method for implementing DNH group in business group | |
| CN207184617U (en) | A kind of communication apparatus of integrated common call and IP calls | |
| CN1120638C (en) | Call connection control method in exchange | |
| CN2152357Y (en) | Party-line different number telephone separator | |
| CN107277277A (en) | A kind of call center's interactive system and method | |
| CN2882136Y (en) | Radio public telephone of GSM system | |
| CN2042646U (en) | Direct dial repeater for automatic telephone exchanger | |
| CN2255698Y (en) | Simple telephone exchanging device | |
| CN2131259Y (en) | Party-line system for multiple group-telephones | |
| CN2047084U (en) | Multichannel subscriber telephone bridging device controlled by micro-computer | |
| CN2126945Y (en) | Turn-call apparatus of wholl solid-state bridging telephone extension | |
| Smith et al. | Automatic telephony: a comprehensive treatise on automatic and semi-automatic systems | |
| CN201937711U (en) | Double route access station | |
| CN1025139C (en) | Distributed exchange type relay communication network system | |
| CN2393278Y (en) | Management device for telephone set | |
| CN2155111Y (en) | Multifunction telephone | |
| CN2049849U (en) | Same subscriber line telephones'separator with mutual call function | |
| CN1870695A (en) | System and method for implementing PBX/PABX service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |