CN100550746C

CN100550746C - A kind of telecommunication network secondary electric supply installation

Info

Publication number: CN100550746C
Application number: CNB031348769A
Authority: CN
Inventors: 魏鸿琪
Original assignee: YANXIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd TIANJIN CITY
Current assignee: YANXIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd TIANJIN CITY
Priority date: 2003-09-27
Filing date: 2003-09-27
Publication date: 2009-10-14
Anticipated expiration: 2023-09-27
Also published as: CN1494254A

Abstract

The present invention relates to a kind of network power supply device; particularly relate to a kind of telecommunication network secondary electric supply installation; comprise that information input socket RJ45 and far-end send electricity and signal output socket RJ45; the power work status indicator lamp of each delivery outlet; 48V; the 24V DC power supply; contain current foldback circuit U1 in its main circuit board circuit, power-switching circuit U3; status display circuit U4; reset circuit U5; output power output circuit U6; supply current Acquisition Circuit U2; the RJ45 socket of electric switch is sent in two mutual two-way connections and two-way respectively connection upper level switch and teletransmission; the teletransmission of two-way connection upper level switch send electricity and signal output port to send electricity and signal input port with the two-way teletransmission that is connected this output port.Beneficial effect is to have made the telecommunication network power supply to second level switching equipment power supply with transmit signal, and has overcurrent protection function, conveniently manages by signal lamp simultaneously and understands each road current situation.

Description

A kind of telecommunication network secondary electric supply installation

Technical field

The present invention relates to a kind of network power supply device, particularly relate to a kind of telecommunication network secondary electric supply installation.

Background technology

Present telecommunication network power supply wiring is to adopt separately wiring of strong and weak electricity, its wiring must keep certain distance with AC power cord, the lost data packets with the electromagnetic interference of avoiding the AC network power line, in addition, existing long-range power transmission system can only be accomplished one deck equipment of powering downwards, be that the electric current carried when ground floor equipment send electricity of long-range power transmission system arrives behind the power consumption equipment of lower floor again that the second layer power consumption equipment below this layer equipment continues to send, and the wiring system not much all is the multilayer wiring system, this has just caused difficulty to cable wiring manufacture, in sum, the demand of the comprehensive power supply of the intellectual communityintellectualized village of the current sandwich construction of existing telecommunication network power supply management system's incompatibility haves much room for improvement.

Summary of the invention

The objective of the invention is at the above-mentioned problems in the prior art, provide a kind of telecommunication network secondary electric supply installation that can send electricity, to solve the problems of the technologies described above to second layer power utilization network equipment.Technical scheme of the present invention is to utilize set of circuits to control 4 road power supplys to power downwards; it is by cabinet; power supply and main circuit board are formed; it is characterized in that: have information input socket RJ45 and far-end to send electricity and signal output socket RJ45 on its cabinet panel; the power work status indicator lamp of each delivery outlet; its power supply is 48V; the 24V DC power supply; the current foldback circuit U1 that contains overcurrent protection output termination supply current Acquisition Circuit U2 input in its main circuit board circuit; the power source conversion input is connected the power-switching circuit U3 that far-end send electricity and signal port output and supply current Acquisition Circuit U2 input respectively with output; state shows that input connects the status display circuit U4 of supply current Acquisition Circuit U2 output; the input/output terminal that resets connects the reset circuit U5 of supply current Acquisition Circuit U2 output and output power output circuit input respectively; the power input/output terminal connects the output power output circuit U6 of reset circuit U5 output and supply current Acquisition Circuit U2 input and information and power supply output socket RJ45 respectively; supply current is gathered input/output terminal and is connected power-switching circuit U3 respectively; the supply current Acquisition Circuit U2 of current foldback circuit U1 and output power output circuit U6 output and circuit U 4 inputs, also comprise two mutual two-way connections and two-way respectively connection upper level switch and teletransmission send the RJ45 socket of electric switch; the teletransmission of two-way connection upper level switch send electricity and signal output port to be connected this teletransmission and to send the teletransmission of electricity and signal output port to send electricity and signal input port with two-way.

Beneficial effect of the present invention can make existing telecommunication network power supply source to power supply of second level switching equipment and transmission signal; and has an overcurrent protection function; conveniently manage by signal lamp simultaneously and understand each road current situation, realized power supply unified management truly.

Description of drawings

Fig. 1 is board circuit block diagram of the present invention and Figure of abstract;

Fig. 2 is a kind of circuit diagram of Fig. 1;

Fig. 3 is an application schematic diagram of the present invention.

Embodiment

With reference to Fig. 1 and Fig. 3, the present invention is made up of cabinet 1 and main circuit board wherein 2 and power supply as can be known.With reference to Fig. 1 and Fig. 2 a kind of circuit structure of its board circuit as can be known, it is characterized in that: power-switching circuit U3 can by power supply (PW-POWER) (as model XR25-48S24) be connected the integrating capacitor C10 of its output (OUT) and form to ground.

Hold and IN1 (48V) port through the PWIN2 that the 7th, the 8th group of line the socket RJ45 connects respectively among the U3 by far-end power supply and signal port with the electric current that electrical network imports into from ground floor (GND), by changing back GND end ground connection, OUT end output 24V electric current, integrating capacitor C10 one end connects the OUT end of PW1, other end ground connection.

Supply current Acquisition Circuit U2 can be by integrating capacitor C1, C3, C5, C7, C9, sample resistance R7, R18, R29 and R40, operational amplifier (as model LM324) U2:1, U2:2, U2:3, U2:4, crosslinked resistance R 8, R19, R30, R41, voltage stabilizing didoe D13 and adjustable rheostat W1 form: integrating capacitor C1, C3, C5, the end of C7 connects sample resistance R7 respectively, R18, R29, the end of R40, the other end is ground connection respectively, crosslinked resistance R 8, R19, the end of R30 and R41 is connected sample resistance R7 respectively, R18, R29, field effect transistor Q1 in R40 and the power output circuit, Q2, Q3, the end that the source electrode of Q4 is connected, the other end is concatenation operation amplifier U2:1 respectively, U2:2, U2:3, the positive input terminal of U2:4, operational amplifier U2:1, U2:2, U2:3, the U2:4 negative input end connects the centre tap of adjustable rheostat W1, the negative pole of zener diode D13 is connecting the upper end of adjustable rheostat W1 and integrating capacitor, the positive pole of voltage stabilizing didoe D13 is connecting the lower end of adjustable rheostat W1 and the lower end ground connection of integrating capacitor, the lower end of pull-up resistor R45 connects the negative pole of voltage stabilizing didoe D13, and the upper end of pull-up resistor R45 connects power supply+24V.

Status display circuit U4 can be by light-emitting diode D1, D2, D3, D4, D5, D6, D7 and D8, current-limiting resistance R4, R15, R26, R37, R11, R22, R33 and R44, crosslinked resistance R 2, R9, R13, R20, R24, R31, R35 and R42, triode Q6, Q7, Q10, Q11, Q14, Q15, Q18 and Q19, biasing resistance R3 under the base stage, R14, R25 forms with R36: above-mentioned light-emitting diode anode is being connected power-switching circuit U3 output (24V) respectively, its negative pole is connecting current-limiting resistance R4 among the U4 respectively, R15, R26, R37, R11, R22, the upper and lower side of R33 and R44, and connect triode Q6 respectively, Q7, Q10, Q11, Q14, Q15, the collector electrode of Q18 and Q19, the equal ground connection of its emitter, triode Q6, Q10, Q14, the base stage of Q18 connects biasing resistance R3 under the base stage respectively, R14, the upper end of R25 and R36, biasing resistance R3 under the base stage, R14, R25, the equal ground connection in the lower end of R36, the end of R42, and crosslinked resistance R 9, R20, the other end of R31 and R42 is connected the field effect transistor Q1 of power output circuit U6 respectively, Q2, Q3, the source electrode of Q4; The two ends of crosslinked resistance R 2, R13, R24, R35 are connecting the base stage of triode Q6, Q10, Q14, Q18 and field effect transistor Q1, Q2 among the output power output circuit U6, the grid of Q3, Q4 respectively.

Output power output circuit U6 can be made up of pull-up resistor R1, R12, R23 and R34, field effect transistor Q1, Q2, Q3 and Q4: above-mentioned resistance upper end is connected the OUT end (24V) of PW among the power-switching circuit U3 respectively, its lower end connects the grid of field effect transistor Q1, Q2, Q3 and Q4 among the output power output circuit U6 respectively, its drain electrode connects the 7th circuit in 4 RJ45 sockets respectively, and its source electrode connects the upper end of sample resistance R7, R18, R29 and R40 among the supply current Acquisition Circuit U2 respectively.

Reset circuit U5 can be by isolating diode D9, D10, D11 and D12, NAND gate (as model C D4011) U1:1, U1:2, U1:3 and U1:4, pull down resistor R6, R17, R28 and R39, triode Q5, Q9, Q13 and Q17, crosslinked resistance R 5, R16, R27 and R38, touch-switch S1 forms: the anodal common upper end that connects S1 of above-mentioned isolating diode, its negative pole connects above-mentioned pull down resistor upper end respectively, the equal ground connection in its lower end, the lower end of touch-switch S1 connects power supply+24V, triode (as model 8050) Q6 among the left input port difference connection status display circuit U4 of above-mentioned NAND gate, Q10, the collector electrode of Q14 and Q18, the right input port of above-mentioned NAND gate connects the negative pole of above-mentioned isolating diode respectively, the output port of above-mentioned NAND gate is respectively by crosslinked resistance R 5, R16, R27, R38 is connecting triode (as 8050) Q5, Q9, Q13, the base stage of Q17, the emitter of its triode connects field effect transistor (as the IRF630) Q1 among the output power output circuit U6 respectively, Q2, Q3, the grid of Q4, triode Q5, Q9, Q13, the equal ground connection of the collector electrode of Q17.

Current foldback circuit U1 can be by unidirectional thyristor (as MCR100-8) Q8; Q12; Q16 and Q20; integrating capacitor C2; C4; C6 and C8; crosslinked resistance R 10; R21; R 32 forms with R43: above-mentioned unidirectional thyristor anode is connected the field effect transistor Q1 of power output circuit respectively; Q2; Q3; the grid of Q4; and its negative electrode difference ground connection; its control utmost point is respectively by crosslinked resistance R 10; R21; R32 is connected the operational amplifier U2:1 among the supply current Acquisition Circuit U2 with R43; U2:2; U2:3; the output of U2:4; integrating capacitor C2; C4; C6; the upper end of C8 connects crosslinked resistance R 10 respectively; R21; R32; the front end of R43, integrating capacitor C2; C4; C6; the lower end ground connection of C8.

After powering up, electric current and signal that foregoing circuit is sent into the ground floor power supply unit are handled, become the electric current and the downward one deck power consumption equipment power supply of signal of second layer power supply unit, promptly be powered at the user by four RJ456 sockets (L15, L16, L17, L18) wiring.

Claims

1; a kind of telecommunication network secondary electric supply installation; by cabinet; power supply and main circuit board are formed; it is characterized in that: information input socket RJ45 is arranged on its cabinet panel; the information of equal number and power supply output socket RJ45; far-end send electricity and signal input socket RJ45 and far-end to send electricity and signal output socket RJ45; the power work status indicator lamp of each delivery outlet; its power supply is 48V; the 24V DC power supply; the current foldback circuit U1 that contains overcurrent protection output termination supply current Acquisition Circuit U2 input in its main circuit board circuit; the power source conversion input is connected the power-switching circuit U3 that far-end send electricity and signal port output and supply current Acquisition Circuit U2 input respectively with output; state shows that input connects the status display circuit U4 of supply current Acquisition Circuit U2 output; the input/output terminal that resets connects the reset circuit U5 of supply current Acquisition Circuit U2 output and output power output circuit input respectively; the power input/output terminal connects the output power output circuit U6 of reset circuit U5 output and supply current Acquisition Circuit U2 input and information and power supply output socket RJ45 respectively; supply current is gathered input/output terminal and is connected power-switching circuit U3 respectively; the supply current Acquisition Circuit U2 of current foldback circuit U1 and output power output circuit U6 output and circuit U 4 inputs, also comprise two mutual two-way connections and two-way respectively connection upper level switch and teletransmission send the RJ45 socket of electric switch; the teletransmission of two-way connection upper level switch send electricity and signal output port to be connected this teletransmission and to send the teletransmission of electricity and signal output port to send electricity and signal input port with two-way.

2, a kind of telecommunication network secondary electric supply installation according to claim 1 is characterized in that: power-switching circuit (U3) can by power supply (PW-Power) be connected its output (OUT) and form to the integrating capacitor (C10) on ground.

3, a kind of telecommunication network secondary electric supply installation according to claim 1, it is characterized in that: supply current Acquisition Circuit (U2) can be by integrating capacitor (C1, C3, C5, C7, C9), sample resistance (R7, R18, R29, R40), operational amplifier (U2:1, U2:2, U2:3, U2:4), crosslinked resistance (R8, R19, R30, R41), zener diode (D13) and adjustable rheostat (W1) are formed: integrating capacitor (C1, C3, C5, C7) a end connects sample resistance (R7 respectively, R18, R29, R40) a end, the other end is ground connection respectively, crosslinked resistance (R8, R19, R30, R41) a end connects sample resistance (R7 respectively, R18, R29, R40) with power output circuit in field effect transistor (Q1, Q2, Q3, Q4) end that source electrode is connected, the other end is concatenation operation amplifier (U2:1 respectively, U2:2, U2:3, U2:4) positive input terminal, operational amplifier (U2:1, U2:2, U2:3, U2:4) negative input end connects the centre tap of adjustable rheostat (W1), the negative pole of zener diode (D13) is connecting the upper end of adjustable rheostat (W1) and integrating capacitor, the positive pole of zener diode (D13) is connecting the lower end of adjustable rheostat (W1) and the lower end ground connection of integrating capacitor, the lower end of pull-up resistor R45 connects the negative pole of zener diode (D13), and the upper end of pull-up resistor (R45) connects power supply+24V.

4, a kind of telecommunication network secondary electric supply installation according to claim 1, it is characterized in that: status display circuit U4 can be by Light-Emitting Diode (D1, D2, D3, D4, D5, D6, D7 and D8), current-limiting resistance (R4, R15, R26, R37, R11, R22, R33 and R44), crosslinked resistance (R2, R9, R13, R20, R24, R31, R35, R42), triode (Q6, Q7, Q10, Q11, Q14, Q15, Q18, Q19) biasing resistance (R3 under the base stage, R14, R25 and R36) to form: above-mentioned Light-Emitting Diode anode is being connected the output (24V) in the power-switching circuit 9 (U3) respectively, its negative pole is connecting the current-limiting resistance (R4 in (U4) respectively, R15, R26, R37, R11, R22, R33, R44) upper and lower side, and connect triode (Q6 respectively, Q7, Q10, Q11, Q14, Q15, Q18, Q19) collector electrode, the equal ground connection of its emitter, triode (Q6, Q10, Q14, Q18) base stage connects biasing resistance (R3 under the base stage respectively, R14, R25, R36) upper end, biasing resistance (R3 under the base stage, R14, R25, R36) the equal ground connection in lower end, resistance (R42) end and crosslinked resistance (R9, R20, R31, R42) the other end connects the field effect transistor (Q1 of power output circuit (U6) respectively, Q2, Q3, Q4) source electrode, crosslinked resistance (R2, R13, R24, R35) two ends are connecting triode (Q6 respectively, Q10, Q14, Q18) field effect transistor (Q1 in base stage and the output power output circuit (U6), Q2, Q3, Q4) grid.

5, a kind of telecommunication network secondary electric supply installation according to claim 1, it is characterized in that: output power output circuit U6 can be by pull-up resistor (R1, R12, R23, R34), field effect transistor (Q1, Q2, Q3, Q4) form: above-mentioned resistance upper end connects the OUT end (24V) of the PW1 among the power-switching circuit U3 respectively, its lower end connects field effect transistor (Q1 among the output power output circuit U6 respectively, Q2, Q3, Q4) grid, its drain electrode connects the 7th circuit in 4 RJ45 ports respectively, and its source electrode connects the sample resistance (R7 in the supply current Acquisition Circuit (U2) respectively, R18, R29, R40) upper end.

6, a kind of telecommunication network secondary electric supply installation according to claim 1, it is characterized in that: reset circuit (U5) can be by isolating diode (D9, D10, D11, D12), NAND gate (U1:1, U1:2, U1:3, U1:4), pull down resistor (R6, R17, R28, R39), triode (Q5, Q9, Q13, Q17), crosslinked resistance (R5, R16, R27, R38), touch-switch (S1) is formed: the anodal common upper end that connects touch-switch S1 of above-mentioned isolating diode, its negative pole connects above-mentioned pull down resistor upper end respectively, the equal ground connection in its lower end, the lower end of touch-switch S1 connects power supply+24V; The collector electrode of triode (Q6, Q10, Q14, Q18) among the input port difference connection status display circuit U4 of an above-mentioned NAND gate left side, the right input port of above-mentioned NAND gate connects above-mentioned isolating diode negative pole respectively, the output port of above-mentioned NAND gate is connecting the base stage of triode (Q5, Q9, Q13, Q17) respectively by crosslinked resistance (R5, R16, R27, R38), the emitter of its triode connects the grid of the field effect transistor (Q1, Q2, Q3, Q4) in the output power output circuit (U6), the equal ground connection of collector electrode of triode (Q5, Q9, Q13, Q17) respectively.

7; a kind of telecommunication network secondary electric supply installation according to claim 1; it is characterized in that: current foldback circuit (U1) can be by unidirectional thyristor (Q8; Q12; Q16; Q20); integrating capacitor (C2; C4; C6; C8); crosslinked resistance (R10; R21; R32; R43) form: the anode of above-mentioned unidirectional thyristor connects the field effect transistor (Q1 of power output circuit respectively; Q2; Q3; Q4) grid; and its negative electrode difference ground connection; its control utmost point is respectively by crosslinked resistance (R10; R21; R32; R43) operational amplifier (U2:1 in the connection supply current Acquisition Circuit (U2); U2:2; U2:3; U2:4) output; integrating capacitor (C2; C4; C6; C8) upper end connects crosslinked resistance (R10 respectively; R21; R32; R43) front end, integrating capacitor (C2; C4; C6; C8) lower end ground connection.