CN201466721U

CN201466721U - Ethernet switch long-distance power supplying device

Info

Publication number: CN201466721U
Application number: CN200920065803XU
Authority: CN
Inventors: 李栋; 汤浦安; 刘佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-04
Filing date: 2009-09-04
Publication date: 2010-05-12
Anticipated expiration: 2019-09-04

Abstract

The utility model relates to an Ethernet switch long-distance power supplying device; an alternating current and direct current transformer module is connected with a direct current transformer module after being transformed, the direct current transformer module is connected with a main control chip after being transformed secondarily, and the input end of the direct current transformer module is connected with eight ports of a switch board; the output anodes of the lines 4 and 5 at any port of a host-end switch are connected with the lines 4 and 5 at any port of a plurality of far-end switches, so as to realize power supplying of the host-end switch to a plurality of the far-end switches, eight ports of the far-end switch are connected in parallel and are electrified, the anode and the cathode of the port are connected with the input end of the direct current transformer module and supplies power, the output end of the direct current transformer module is connected with the main control chip and supplies power, and mutual serial-connection power supplying proposal is adopted among the far-end switches, so as to overcome the disadvantages that the Ethernet can not be used without mains supply; the Ethernet switch long-distance power supplying device is suitable for Ethernet switch long-distance power supplying within 600m.

Description

The Ethernet switch remote power supply device

Technical field

The utility model relates to a kind of Ethernet switch remote power supply device.

Background technology

Remote power feeding extensively adopts in telephone exchange, and this technology has been brought convenience to us, even in the outage of user's dwelling house, still can utilize the phone and the external world to carry out communication; The Ethernet remote power feeding technology of comparative maturity is the standard of IEEE (international Electronic Engineering Association) IEEE 802.3af at present, the realization of this technology may make your network equipment no longer need the battery of any heaviness and loaded down with trivial details plug in the future, because as long as you can connect to network, netting twine will be powered for your networked devices automatically, take the transmission of dual mode power supply at present, first kind is that the signal of power supply through UTP transmitted cable.The second way is that other non-signals that power supply sees through in the UTP are transmitted cable; The second way is more favored at present, be that data and power supply separately transmit, there are 4 to be used for transmission signals in 8 lines, other 4 lines are used for transmitting power supply, adopt the Ethernet remote power feeding, but this POE technology is limited by the restriction that Ethernet transmits distance, in the 100Mbps connection status, can reach 100 meters farthest.In the 10Mbps connection status, maximum distance reaches 200 meters.

Summary of the invention

At above-mentioned situation, the utility model provides a kind of and adopts quasi-resonance formula main circuit and synchronous rectification by Ethernet switch collection connection, and power-efficient is increased substantially, prolonged power supply and transmission range, maximum distance can reach 600 meters Ethernet switch remote power supply device.

To achieve these goals, a kind of Ethernet switch remote power supply device is made up of with several distant-end switch that are connected through cable a main end switch; Described main end switch comprises that attaching plug is connected with alternating current-direct current transformer module input, output after the alternating current-direct current transformer module transformation connects the commutator transformer module input, output after the commutator transformer module secondary transformation connects main control chip, the commutator transformer module input is drawn

anodal

4,5 lines that connect 8 ports of switch mainboard, draws 7,8 lines that negative pole connects 8 ports of switch mainboard; Described several distant-end switch can adopt in parallel through cable with main end switch, also can adopt mutual series connection between several the distant-end switch, when in parallel, in one port of the switch mainboard of

main end switch

4,5 lines are through the cable output cathode, 7,8 line output negative poles, be connected with a port of the switch mainboard of several distant-end switch, 4 of port, the input of 5 lines is anodal, 7,8 lines input negative pole, realize the remote power feeding of main end switch logarithm platform distant-end switch, 8 port parallel connections of the switch mainboard of distant-end switch, make 4 of 8 ports, 5 tape positive electricity, 7,8 tape negative electricity, the both positive and negative polarity of port connects the both positive and negative polarity of commutator transformer module input, and the output of commutator transformer module connects main control chip; When connecting mutually between several the distant-end switch, selected distant-end switch that is connected with main end switch, a selected port is connected with a port of another distant-end switch in other 7 ports of this distant-end switch, make 4,5 tape positive electricity of 8 ports of this distant-

end switch

2,7,8 tape negative electricity, the both positive and negative polarity of port connects the both positive and negative polarity of commutator transformer module input, and the output of commutator transformer module connects main control chip.

In order to realize result optimizing, improve, improve combination property of the present utility model, further step is:

Described attaching plug connects 220V or 110V civil power.

1,2,3,6 lines of every port of described switch mainboard are signal output and receive line.

Described cable is made up of 8 leads.

The utility model adopts main end switch attaching plug to be connected with alternating current-direct current transformer module input, connect the commutator transformer module after the alternating current-direct current transformer module transformation, connection main control chip after the commutator transformer module secondary transformation, the commutator transformer module input is with 8 port parallel connections of switch mainboard; 4 of arbitrary port of main end switch, arbitrary port 4 of 5 line output cathodes and several distant-end switch, 5 lines connect, 7, arbitrary port 4 of 8 line output negative poles and several distant-end switch, 5 lines connect, realize the power supply of main end switch logarithm platform distant-end switch, 8 port parallel connections of distant-end switch, make 8 ports charged, the both positive and negative polarity of 8 port parallel connections is connected with the commutator transformer module input and powers, the output of commutator transformer module connects main control chip and power supply, adopt the scheme of mutual series-fed between the distant-end switch, can not use the defective of Ethernet when having overcome no civil power in the prior art.

The beneficial effect that the utility model is produced compared to existing technology:

1, made full use of transmission line or the residue telephone wire in the composite cable and realized the remote low pressure power supply, need not lay supply line in addition, can under the situation of no civil power, surf the Net.

2, carrying voltage is 48V, to human body safety.

3, adopt quasi-resonance formula main circuit and synchronous rectification, power-efficient is increased substantially, prolonged power supply and transmission range.

4, cost is low, and is simple in structure, easy to maintenance.

The utility model is applicable to the Ethernet switch remote power feeding in the 600m.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Description of drawings

Fig. 1 is that main end switch of the present utility model is connected with several distant-end switch and the connection layout of combination in parallel.

Among the figure: 1, switch, 2, distant-end switch, 3, attaching plug, 4, the alternating current-direct current transformer module, 5, the commutator transformer module, 6, main control chip, 7, the switch mainboard, 8, cable.

Embodiment

Shown in Figure 1 by accompanying drawing, a kind of Ethernet switch remote power supply device is made up of with several the distant-end switch 2 that are connected through cable 8 a main end switch 1; Main end switch 1 comprises that attaching plug 3 is connected with alternating current-direct current transformer module 4 inputs, attaching plug 3 connects 220V or 110V civil power, alternating current-direct current transformer module 4 becomes the 48V direct current with 220V or 110V civil power transformation, output after the transformation connects commutator transformer module 5 inputs, commutator transformer module 5 secondary transformations, 48V direct current transformation is become the 12V direct current, output connects main control chip 6, for switch main control chip 6 provides 12V power supply, switch main control chip 6 has adopted quasi-resonance formula and synchronous rectification, power-efficient is increased substantially, power supply and transmission range have been prolonged, make transmission range reach 600 meters, commutator transformer module 5 inputs are drawn 4 of anodal 8 ports that connect

switch mainboard

7,5 lines, draw negative pole connect switch mainboard 78

ports

7,8 lines make 8 ports all be with the 48V direct current; Several distant-end switch 2 adopt in parallel through cable 8 with main end switch 1, also can adopt mutual series connection between several the distant-end switch 2, when in parallel, one port of the switch mainboard 7 of distant-end switch 2 is connected through arbitrary port of cable 8 with 8 ports of main end switch 1, in one port of the switch mainboard 7 of main end switch 14,5 lines are through cable 8 output cathodes, 7,8 line output negative poles, be connected with a port of the switch mainboard 7 of several distant-

end switch

2,4 of port, the input of 5 lines is anodal, 7,8 lines input negative pole, realize the remote power feeding of main end switch 1 logarithm platform distant-

end switch

2,8 port parallel connections of the switch mainboard 7 of distant-end switch 2, make 4 of 8 ports, 5 tape positive electricity, 7,8 tape negative electricity, input voltage is the 48V direct current, the positive pole of port connects the positive pole of commutator transformer module 5 inputs, the negative pole of port connects commutator transformer module 5 input cathode, the input voltage that makes commutator transformer module 5 is the 48V direct current, commutator transformer module 5 secondary transformations, with 48V direct current transformation is the 12V direct current, the output of commutator transformer module 5 connects main control chip 6, for main control chip 6 provides 12V direct current; When connecting mutually between several the distant-end switch 2, selected distant-end switch 2 that is connected with main end switch 1, a selected port is connected with a port of another distant-end switch 2 in other 7 ports of this distant-end switch 2, make this distant-end switch 28

ports

4,5 tape positive electricity, 7,8 tape negative electricity, voltage is the 48V direct current, the positive pole of port connects the positive pole of commutator transformer module 5 inputs, the negative pole of port connects commutator transformer module 5 input cathode, the input voltage that makes commutator transformer module 5 is the 48V direct current, commutator transformer module 5 secondary transformations, with 48V direct current transformation is the 12V direct current, the output of commutator transformer module 5 connects main control chip 6, for the main control chip 6 of distant-end switch 2 provides 12V direct current; Every port one, 2,3 of

switch mainboard

7,6 lines are signal output and receiving port, 1,2,3,6 of 1,2,3,6 lines of every port of main end switch 1 and a port of several distant-end switch 2 is connected through cable 8, ethernet network information is provided, a main end switch 1 adopts series connection and combination in parallel mostly to be 8 distant-end switch 2 most provides 48V DC power supply, cable is made up of 8 leads, with corresponding connection of numbering 1-8 of

main end switch

1 and 8 lines of distant-end switch 2 every ports.

Claims

1. Ethernet switch remote power supply device is characterized in that it is made up of with several the distant-end switch (2) that are connected through cable (8) a main end switch (1); Described main end switch (1) comprises that attaching plug (3) is connected with alternating current-direct current transformer module (4) input, output after alternating current-direct current transformer module (4) transformation connects commutator transformer module (5) input, output after commutator transformer module (5) the secondary transformation connects main control chip (6), commutator transformer module (5) input is drawn anodal 4,5 lines that connect 8 ports of switch mainboard (7), draws 7,8 lines that negative pole connects 8 ports of switch mainboard (7); Described several distant-end switch (2) adopt in parallel through cable (8) with main end switch (1), also can adopt mutual series connection between several the distant-end switch (2), when in parallel, in one port of the switch mainboard (7) of main end switch (1) 4,5 lines are through cable (8) output cathode, 7,8 line output negative poles, be connected with arbitrary port of the switch mainboard (7) of several distant-end switch (2), 4 of port, 5 lines are through importing positive pole, 7,8 lines input negative pole, realize the remote power feeding of main end switch (1) logarithm platform distant-end switch (2), 8 port parallel connections of the switch mainboard (7) of distant-end switch (2), make 4 of 8 ports, 5 tape positive electricity, 7,8 tape negative electricity, the both positive and negative polarity of port connects the both positive and negative polarity of commutator transformer module (5) input, and the output of commutator transformer module (5) connects main control chip (6); When connecting mutually between several the distant-end switch (2), selected distant-end switch (2) that is connected with main end switch (1), a selected port is connected with a port of another distant-end switch (2) in other 7 ports of this distant-end switch (2), make 4,5 tape positive electricity of 8 ports of this distant-end switch (2), 7,8 tape negative electricity, the both positive and negative polarity of port connects the both positive and negative polarity of commutator transformer module (5) input, and the output of commutator transformer module (5) connects main control chip (6).

2. a kind of Ethernet switch remote power supply device according to claim 1 is characterized in that described attaching plug (3) connects 220V or 110V civil power.

3. a kind of Ethernet switch remote power supply device according to claim 1,1,2,3,6 lines that it is characterized in that every port of described switch mainboard (7) are signal output and receive line.

4. a kind of Ethernet switch remote power supply device according to claim 1 is characterized in that described cable (8) is made up of 8 leads.