CN2101979U - Telephonic communication business switchboard - Google Patents
Telephonic communication business switchboard Download PDFInfo
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- CN2101979U CN2101979U CN 91229280 CN91229280U CN2101979U CN 2101979 U CN2101979 U CN 2101979U CN 91229280 CN91229280 CN 91229280 CN 91229280 U CN91229280 U CN 91229280U CN 2101979 U CN2101979 U CN 2101979U
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Abstract
The utility model relates to a telephonic communication business switchboard which has the function of exchange and comprises a bell and current flow exchange circuit, a salesman circuit, a monitoring loop circuit, a switching matrix, and a power circuit. The voice circuit can be arbitrarily switched with the telephone through the switching matrix formed by miniature relays. Touch keys and electro-optic coupling devices are also adopted in the utility model. The salesman can do monitoring, talking and controlling to any voice circuit. The voice circuit can be manual and automatically direct dialing. All the circuits are arranged in one machine housing. The utility model is suitable for using in a post and telecommunications office, a hotel business hall (room), etc. Having the advantages of novel design, simple structure, practical use, clear and visualized indication such as occupation, ringing current, monitoring, etc., simple operation, convenience, facility, and convenient moving.
Description
The utility model belongs to post and telecommunications equipment, hangs for the user and sends out artificial or the automatic telephone use, is applicable to occasions such as post and telecommunications business hall, chamber and hotel.
At present, telecommunication business uses traditional plate key or control mode, and shop assistant and operator account for a special line contact speech channel, speech channel is corresponding one by one with the telephone booth, can not exchange, and uses dumb, monitor that control is inconvenient, connect a phone and will successively operate three times that connecting time is long.
The purpose of this utility model is: a kind of telecommunication business platform with function of exchange is provided, saves special-purpose contact speech channel, simplify procedures, improved the degree of freedom of speech channel and telephone booth selection, and clear, show various operating states intuitively.
The purpose of this utility model is achieved in that this telecommunication business board is owing to the ringing-current change-over circuit, and shop assistant's circuit, loop monitoring circuit, switching matrix and power circuit constitute; Each bar speech channel respectively has a ringing-current change-over circuit and a loop monitoring circuit.Wherein the formation of ringing-current change-over circuit is: its input is connected on two lines of speech channel (a, b), after connect a rectifier bridge, be connected in series a capacitor C 1 between input of electric bridge and the words line, the electric bridge dc output end is anodal to be connected in series a resistance R 1; Resistance R 2 is with in parallel with capacitor C 2 again after light-emitting diode in the photoelectrical coupler is connected, and an end and the R1 of C2, R2 join, the other end of C2, and the negative pole of light-emitting diode is connected on the direct current output negative terminal of rectifier bridge in the photoelectrical coupler; Positive 6V power supply connects display lamp LED1, the collector electrode of triode in resistance R 3 and the photoelectrical coupler successively; Its grounded emitter; Connect 11 pin of many input AND circuit U2 between resistance R 3 and the transistor collector; The output of many defeated AND circuit joins another termination of buzzer+6V power supply through a K switch F and buzzer.Constituting of described loop monitoring circuit: capacitor C 3 is series on the speech channel a line, and light-emitting diode and C3 in resistance R 4, diode D and the photoelectrical coupler are connected in parallel; The end of R4 wherein, the negative terminal of the positive pole of diode D and the negative pole of light-emitting diode and C3 joins; The other end of resistance R 4, the positive pole of the negative pole of diode D and the positive pole of light-emitting diode and C3 joins; Positive 6V power supply connects the collector electrode of display lamp LED2, resistance R 5 and triode successively; Its grounded emitter.Above-mentioned power circuit is made up of power transformer, rectifier bridge, electric capacity, resistance and pressurizer; The elementary civil power (220V, 50Hz) that connects of power transformer wherein, secondary two ac input ends that connect rectifier bridge, the dc output end of rectifier bridge and two capacitors are connected in parallel, the input of pressurizer and electric bridge positive output end join, the earth terminal of pressurizer is connected to the direct current negative terminal of electric bridge through a variable resistor, variable-resistance sliding contact is connected to the positive output end of pressurizer through a resistance, at the output of DC power supply electric capacity in parallel again.Described switching matrix be m capable * n is listed as (wherein m, n are the positive integer in the natural number); The circuit of each matrix element is constructed as follows :+6V power supply connects an end of Jmn1, Jmn2, Jmn3, Jmn4 and Jmn5 and Jcm relay successively, and the other end of Jcm is by K switch cm ground connection; Another termination H holding wire Hn of relay J mn1, another termination Jmn1 of relay J mn2--Jmn5, the moving contact of Jmn2; Fixed contact of relay J mn1 connects the Rm line, and connect the end of end of Jcm moving contact and K switch cm through K switch Rm after, common ground; The fixed contact of Jmn2 is connected the fixed contact ground connection of Jmn3 with the fixed contact of Jcm; After being connected in series, the moving contact of Jmn3 and resistance and indicator light be connected to+the 6V power supply; The Jmn4/Jmn5 moving contact joins with a, the b line of external speech channel (linen) respectively.Described shop assistant's speech channel is made of a circuit that is listed as n element, and wherein the circuit connecting relation of each element is as follows :+6V power supply is through the pulse-triggered end CP of K switch Ln connecting resistance Rn1 and d type flip flop; The other end ground connection of resistance R n1; The D end of d type flip flop, S termination+6V power supply, R end are through K switch L ground connection, and+6V power supply is connected between KL and the R end through a resistance; The a of d type flip flop holds the base stage that meets transistor BGn through resistance R n2, the grounded emitter of BGn, and collector electrode joins with the end of three relay J n1 in parallel, Jn2, Jn3, another termination+6V power supply of Jn1, Jn2, Jn3; Shop assistant's phone connects the moving contact of Jn2, Jn3, the fixed contact of Jn2, Jn3 answer respectively a, the b line of line (line n), the moving contact ground connection of Jn1, the moving contact ground connection of Jn1, the fixed contact tap two-way of Jn1: the one tunnel is connected to+the 6V power supply through resistance R n3, indicator light LEDn, and another road meets H holding wire Hn.
This technical scheme has adopted the switching matrix technology, circuit and telephone booth one-to-one relationship have been changed, realized the optional and exchange of speech channel and telephone booth, utilize the contact of shop assistant's talk key to cooperate with the telephone booth options button, finish function of exchange, saved special-purpose contact speech channel, the shop assistant can monitor arbitrary speech channel or telephone booth, conversation, connect, controls such as removing, have and take, ringing-current, monitor, index signal directly perceived such as conversation, switching matrix has been selected the small-sized sealing relay for use, button adopts contact witch, ringing-current and monitoring circuit effect photoelectric coupled device, circuit design can connect manual circuit also can connect automatic direct dialing circuit, all elements are contained in the casing, can move freely on workbench.
Owing to adopted such scheme, made the utility model possess following advantage:
＜1〉external n bar speech channel, a m telephone booth, wherein arbitrary all can connect full-automatic speech channel or artificial speech channel.
＜2〉shop assistant or operator can choose a speech channel call peer wantonly.
＜3〉shop assistant can exchange to arbitrary telephone booth with arbitrary speech channel, and the operator only continues once.
＜4〉shop assistant can monitor, converse, monitor arbitrary speech channel.
＜5〉have audible, optical signal during the operator call.
＜6〉have the telephone booth and take indicator light and conversation repeater lamp.
＜7〉provide+the 6V power supply, only need the civil power of external 50Hz, 220V in the machine.
＜8〉speech channel and telephone booth can be unequal, as have 5 external speech channels: 3 speech channels connect work, and 2 connect automatically, and the telephone booth only connects 3, because function of exchange, the telephone booth was used flexibly according to busy, spare time, and as artificial busy, use for artificial full the telephone booth, when the direct dialing machine is busy automatically, can take between 2 words, manually use one, very flexible.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the complete machine schematic diagram of an embodiment of the utility model
Fig. 2 is that of shop assistant's circuit implements illustration
Fig. 3 is an embodiment schematic diagram of 5 * 5 switching matrixs
Fig. 4 power principle figure
Fig. 5 is that the circuitry of embodiment constitutes block diagram
The technical parameter of this embodiment is:
A, straight-through sending allowance≤0.05db;
B, crosstalk attenuation 〉=75db;
C, conversation get involved attenuation≤3.5db;
D, maximum power dissipation 15W
Operation principle:
Ringing-current change-over circuit (Fig. 1)
With Line5 is example, if a, the b line is sent ringing-current here, is added to rectifier bridge through capacitor C 1, output after its rectification is removed ripple through C2, after the R1 dividing potential drop, add to resistance R 2 and optical coupler, provide suitable led lighting electric current for optocoupler by R2, so the pressure drop of triode saturation conduction A point is by high step-down, make R3, have electric current to pass through on the LED1, it is luminous to call out display lamp LED1; Through many input AND circuit, make the buzzer sounding simultaneously, finish calling procedure.
Shop assistant's circuit
When the shop assistant wants to get in touch with the operator, can choose one tunnel idle speech channel wantonly, as Line5, press drop Voice Channel options button KL5, send the trigger clock signal, trigger output high level makes the BG5 saturation conduction, so relay J 51--J53 coil has electric current to pass through, adhesive subsequently can make the H5 line ground connection of switching matrix to shop assistant's phone and speech channel 5 UNICOMs simultaneously, LED5 is luminous, when the user conversed by Line5, the shop assistant also can utilize this circuit to call out, and monitored.
Monitoring circuit
Still be example, when user's off-hook is talked, form in the speech channel and flow back to the road always with Line5, through resistance R 4 shuntings, the diode in the optocoupler flows through suitable electric current, makes it luminous, so the triode saturation conduction, B point current potential is by high step-down, thereby LED2 is luminous, form optical signal, DC channel is cut off in the user speech on-hook that finishes, and B point current potential reverts to height, LED2 extinguishes, the expression speech channel free time.
Switching matrix
This part circuit is the core of this board, and the function of exchange of speech channel and telephone booth is promptly finished by it.
5 couples of lambda line Line1-Line5 are from console (or automatic circuit) longitudinally for matrix, and 5 pairs of horizontal outlets are received 5 respectively and used the telephone booth; The H signal (H1--H5) of vertical direction is produced by shop assistant's circuit, is used to control between which bar speech channel of console basement and words join.
For example, if will make speech channel 5(Line5) connect with telephone booth 1, at first the shop assistant presses KL5, and so H5 line ground connection is relay J 121 adhesives; Then, press room options button KR1, R1 line ground connection makes the J122--J125 adhesive, and wherein J122 constitutes the self-keeping circuit; J123 connects the room and takies lamp, and J124, J124 connect telephone wire a, b.So 1 conversation removed H between Line5 can and talk about, R1 line signal, the self-keeping circuit keeps the relay attracting state, up to talk-through, presses KC1, the Jc1 adhesive, the self-keeping circuit disappears, the relay source circuit.
The 50Hz of the outer input of machine, the 220V civil power through transformer U1, is reduced to 9VAC, through the full-wave rectification of U2, behind the capacitor filtering, delivers to pressurizer U3 again, adjusts R2, and is defeated+6VDC, uses for relay and other partial circuit.
The course of work
Call out console
Press any among the speech channel options button KL1--KL5, corresponding relay adhesive makes the corresponding speech channel of shop assistant's switch on, can send call signal, and KL1--KL5 is the runback button, and after effectively pressing, button upper right corner display lamp is luminous.
Receive the operator call
If certain bar lambda line is sent ringing-current here, through change-over circuit, obtain audible, visible signal, the shop assistant just knows it is which is being called out.
The exchange communication process
The shop assistant finds to call out, and sends ringing-current here as the 5th speech channel, presses after KL5 and operator get in touch, and selects as No. 1, to press after the KR1 between idle words again, just speech channel 5 inserts between words 1, can converse at this moment.The shop assistant resets by KL ' again, and shop assistant's circuit withdraws from, in order to calling out next time.
Monitor and monitoring
During user's communication, repeater lamp is luminous in the corresponding speech channel, and the shop assistant presses corresponding talk key KL1--KL5 according to the bright situation of lamp, just can monitor or talk.
Words eventually
During user's communication, repeater lamp is luminous in the corresponding speech channel, and the shop assistant presses corresponding talk key KL1--KL5 according to the bright situation of lamp, just can monitor or talk.
Words eventually
The user talks about complete on-hook, and repeater lamp extinguishes, and the shop assistant presses room clear key KC1, cuts off talking path, in order to continuing next time; Press KL5 again, shop assistant's phone strides into the 5th speech channel, and the inquiry telephone expenses finish, and reset by KL ', promptly finish once complete handshaking procedure.
Full-automatic communication process
Suppose that the 3rd circuit connects automatic telephone, the shop assistant presses speech channel options button KL3, press the room then and select in the key (KR1--KR5) any, suppose and select No. 1 room, promptly press KR1, so the 3rd circuit just exchanges to the room No. 1, it is luminous that the 1st room takies lamp, user's off-hook begins dialing after hearing dialing tone, and the shop assistant withdraws from by KL '.After the subscriber dialing, reply as called machine, switch is sent polarity inversion here and is played the machine signal, makes the loop repeater lamp luminous, shows and puts through; As do not put through or nobody connects, the loop lamp does not work, and represents access failure still, and conversation ends, and the loop repeater lamp extinguishes after user's on-hook, and the shop assistant can cut off the room No. 1 by room clear key KC1, in order to continuing next time.
Control switch KF is a third gear toggle switch, can select whether change ringing-current into audible information as required.
KR1--KR5, KC1--KC5, KL1--KL5, KL ' is self-complex switch.
Claims (6)
1, a kind of telecommunication business board is characterized in that: be to be made of ringing-current change-over circuit, shop assistant's circuit, loop monitoring circuit, switching matrix and power circuit; Each bar speech channel respectively has a ringing-current change-over circuit and a loop monitoring circuit.
2, telecommunication business board according to claim 1, it is characterized in that: the input of ringing-current change-over circuit is connected on two line (a of speech channel, b) on, after connect a rectifier bridge, be connected in series a capacitor C 1 between input of electric bridge and the words line, the positive pole of electric bridge direct current output is connected in series a resistance R 1; Resistance R 2 is with in parallel with capacitor C 2 again after light-emitting diode in the photoelectrical coupler is connected, and the end of C2, R2 links to each other with R1, and the negative pole of light-emitting diode is connected on the direct current output negative terminal of rectifier bridge in the other end of C2, the photoelectrical coupler; Positive 6V power supply connects the collector electrode of triode in display lamp LED1, resistance R 3 and the photoelectrical coupler successively; Its grounded emitter; Connect 11 pin of many input AND circuit U2 between the collector electrode of resistance R 3 and triode, the output of this circuit connects buzzer through a K switch F, and the other end of buzzer joins with+6V power supply.
3, telecommunication business board according to claim 1 is characterized in that: capacitor C in the monitoring circuit of loop
1Be serially connected with speech channel a line, light-emitting diode in resistance R 4, diode D and the photoelectrical coupler is in parallel with capacitor C 3, wherein the negative pole of the positive pole of the end of R4, diode D and light-emitting diode and the negative terminal of C3 join, the other end of resistance R 4, the anode of the negative pole of diode D and the positive pole of light-emitting diode and C3 joins; Positive 6V power supply connects the collector electrode of display lamp LED2, resistance R 5 and triode, the grounded emitter of triode successively.
4, telecommunication business board according to claim 1, it is characterized in that: power circuit is made up of power transformer, rectifier bridge, electric capacity, resistance and integrated three-terminal regulator; The input termination civil power of power transformer, secondary two ac input ends that connect rectifier bridge, the dc output end of rectifier bridge and two capacitors are connected in parallel, the input termination electric bridge positive output end of pressurizer, the earth terminal of pressurizer is connected to the direct current negative terminal of electric bridge through a variable resistor, variable-resistance sliding contact is connected to the positive output end of pressurizer through a resistance, at the dc output end of power supply electric capacity in parallel again.
5, telecommunication business board according to claim 1 is characterized in that: described switching matrix be m capable * n is listed as (wherein m, n are the positive integer in the natural number); The circuit of each matrix element is constructed as follows: positive 6V power supply connects an end of Jmn1, Jmn2, Jmn3, Jmn4, Jmn5 and Jcm relay successively, and the other end of Jcm is by K switch cm ground connection; Another termination H holding wire Hn of relay J mn1, another termination Jmn1 of relay J nm2--Jmn5, the moving contact of Jmn2; The fixed contact of relay J mn1 meets Rm and connects the Jm line, and connects common ground behind the end of end of Jcm moving contact and K switch cm through K switch Rm; The fixed contact of Jmn2 is connected with the fixed contact of Jcm, the fixed contact ground connection of Jmn3, the moving contact of Jmn3 be connected to+the 6V power supply after resistance and indicator light are connected; The words line a of (No.m) between the fixed contact of Jmn4, Jmns is answered the call respectively, b; The moving contact of Jmn4, Jmn5 joins with answer a, the b line of road (line n) of meal respectively.
6, telecommunication business board according to claim 1, it is characterized in that, described shop assistant's speech channel is made up of the circuit of n element of row, and wherein the circuit of each element is constructed as follows: power supply (+6V) through the pulse-triggered end CP of K switch Ln connecting resistance Rn1 and d type flip flop; The other end ground connection of resistance R n1; The D end of d type flip flop, S termination+6V power supply, R holds through switch RL ground connection, and+6V power supply is connected between KL and the R end through a resistance; The a of d type flip flop holds the base stage that meets transistor BGn through resistance R n2, the grounded emitter of BGn, and collector electrode connects the end of three relay J n1 in parallel, Jn2, Jn3; Another termination+6V power supply of Jn1, Jn2, Jn3; Shop assistant's phone connects the moving contact of Jn2, Jn3, the fixed contact of Jn2, Jn3 answer respectively a, the b line of line line n; The moving contact ground connection of Jn1; The fixed contact tap two-way of Jn1, the one tunnel is connected to+the 6V power supply through resistance R n3, indicator light LEDn, and another road meets H holding wire Hn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91229280 CN2101979U (en) | 1991-11-29 | 1991-11-29 | Telephonic communication business switchboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91229280 CN2101979U (en) | 1991-11-29 | 1991-11-29 | Telephonic communication business switchboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2101979U true CN2101979U (en) | 1992-04-15 |
Family
ID=4934812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91229280 Withdrawn CN2101979U (en) | 1991-11-29 | 1991-11-29 | Telephonic communication business switchboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2101979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180028A (en) * | 2020-08-14 | 2021-01-05 | 安徽德亚电池有限公司 | Device and method for non-aqueous detection of free acid content of electrolyte |
-
1991
- 1991-11-29 CN CN 91229280 patent/CN2101979U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180028A (en) * | 2020-08-14 | 2021-01-05 | 安徽德亚电池有限公司 | Device and method for non-aqueous detection of free acid content of electrolyte |
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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 |