CN204539174U - A kind of simple and easy external power supply POE electric power system - Google Patents

Abstract

The utility model discloses a simple external power supply POE power supply system. The -48V DC power supply required for POE power supply is connected to the input end of the integrated data network switch for data signal transmission. The RJ45 interface of the integrated data network switch is connected to the RJ45 crystal head Ⅰ. The lead wire sequence of the air switch II output terminal of the power panel is 4, 5 bare wires wound to ground, 7, 8 bare wires wound to -48V and the RJ45 crystal head I wire pairs 1, 2; 3, 6 for data signal transmission In the network wiring unit, the RJ45 interface of the network wiring unit is connected to the RJ45 crystal head II, and the RJ45 interface of the power receiving device is connected to the RJ45 crystal head III. connected. The utility model reduces the cost to the greatest extent, and at the same time provides a stable and reliable power supply for ensuring electric power safety production scheduling and communication.

Description

A simple external power supply POE power supply system

technical field

The utility model relates to a POE power supply system, in particular to a simple external power supply POE power supply system. It belongs to the technical field of communication power supply.

Background technique

What is POE power supply? POE power supply is the abbreviation of Active Power over Ethernet. With the development of communication technology, IP phones will be more and more used in the communication field. Under the current situation of the communication integrated data network, due to the different engineering projects, the functions of the purchased network switches are different. For example: In the existing network, the service ports of switches such as Huawei S9306, S9303, S7703, and S5352 purchased by the power supply 66KV communication station and 220KV communication station do not have the POE power supply function. When carrying IP administrative telephones and IP dispatching telephones, the working environment needs to provide constant AC power sockets and external AC-to-DC plugs for power supply. The disadvantage is that the plugs are manually knocked off or the sockets are powered off, which will cause interruption of the phone. In the actual production application under the above circumstances, in order to ensure the smooth communication of the IP phone, one DC power supply can be taken from the DC panel of the intelligent switching power supply with the conditions, and an external POE power supply can be provided for the IP phone and other related POE power supply devices. . However, while adopting POE power supply technology, it has become an urgent problem for communication users to ensure the safety of existing structured wiring, ensure the normal operation of existing networks, and minimize costs.

Contents of the invention

In order to solve the above technical problems, the utility model provides a simple external DC-48V power supply POE power supply system, which ensures the normal operation of the existing network and minimizes the cost. The device provides a stable and reliable power supply for power safety production scheduling and administrative telephone communication, achieving the best effect of POE power supply.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

A simple external power supply POE power supply system, its structure is as follows: the output lead wire of the air switch I of the DC power panel with the -48V required for POE power supply is connected to the input end of the integrated data network switch for data signal transmission, and the integrated data The RJ45 interface of the network switch is connected to the RJ45 crystal head Ⅰ, the lead wire sequence of the output terminal of the air switch Ⅱ of the DC power supply screen 4, 5 bare wires are wound to ground, 7, 8 bare wires are wound to -48V and the RJ45 crystal for data signal transmission Head Ⅰ line pairs 1, 2; 3, 6 are connected to the network wiring unit, the RJ45 interface of the network wiring unit is connected to the RJ45 crystal head Ⅱ, the RJ45 interface of the receiving end device is connected to the RJ45 crystal head Ⅲ, and the RJ45 crystal head Ⅱ and RJ45 crystal head Ⅲ are connected through super five twisted pair cables.

The power receiving end device is any one or more of an IP phone, a wifi wireless local area network access point AP, and a network camera.

The POE power supply adopts Cat5e twisted pair and above standards as the connection medium.

The utility model is to solve the POE power supply system carrying IP-based telephones, wifi wireless local area network access points AP, network cameras, etc. on the Ethernet switch that does not have the POE power supply function. The premise of the utility model is based on IP Power-receiving devices such as telephones, wifi wireless LAN access points AP, network cameras, etc., realize the function of receiving power through POE on switches that do not have the function of POE power supply.

Owing to adopting above-mentioned technical scheme, make the utility model reach following technical effect:

The POE power supply of the utility model can provide uninterruptible power supply dedicated to communication, and can safely and stably supply power to equipment such as POE power receiving end IP phones, especially for ensuring safe production scheduling of electric power and smooth administrative telephone communication, providing a stable and reliable power supply. The utility model has the advantages of simple structure, convenient operation, strong practicability, and low cost. It uses a safe and stable external POE power supply system, which makes it possible to provide high-reliability power supply for external POE power supply, and is very conducive to popularization and application in the field of data communication.

Description of drawings

Figure 1 is a schematic structural view of the utility model.

In the figure, 1. DC power panel air switch Ⅰ, 2. Integrated data network switch, 3. RJ45 crystal plug Ⅰ, 4. DC power screen air switch Ⅱ, 5. Network wiring unit, 6. RJ45 crystal plug Ⅱ, 7 , RJ45 crystal head Ⅲ, 8, receiving end equipment.

Detailed ways

Below in conjunction with embodiment the utility model is described in further detail. The following examples are only several specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and all nonsubstantial changes are carried out to the utility model by using this concept, all should be within the scope of protection of the utility model within.

Example 1

As shown in Figure 1, a simple external power supply POE power supply system has the following structure: -48V DC power supply required for POE power supply, the output lead of the air switch Ⅰ1 and the integrated data network switch 2 for data signal transmission The RJ45 interface of the integrated data network switch 2 is connected to the RJ45 crystal head Ⅰ3, and the air switch Ⅱ4 output terminal of the DC power supply panel is connected to the lead wire sequence 4, 5 bare wire winding grounding, 7, 8 bare wire winding connection to -48V and The RJ45 crystal head I 3 wire pairs 1, 2; 3, 6 used for data signal transmission are connected to the network wiring unit 5, the RJ45 interface of the network wiring unit 5 is connected to the RJ45 crystal head II 6, and the receiving end equipment is 8 IP phones The RJ45 interface is connected to the RJ45 crystal plug Ⅲ7, and the RJ45 crystal plug Ⅱ6 is connected to the RJ45 crystal plug Ⅲ7 through a super-category five twisted pair. The above-mentioned POE power supply adopts a super five twisted pair and above standard as the connection medium.

Example 2

The RJ45 interface of the receiving end equipment 8 IP phone, wifi wireless LAN access point AP and network camera is connected with the RJ45 crystal head Ⅲ7. Others are the same as in Embodiment 1, and will not be repeated.

The working principle of the present utility model is as follows: according to the principle of POE power supply, the standard Cat.5 network cable has four pairs of twisted pairs, but only two pairs of them are used in 10M BASE-T and 100M BASE-T. IEEE80 2.3af allows two usages. When the space pin is used for power supply, the 4 and 5 pins are connected as the positive pole, and the 7 and 8 pins are connected as the negative pole. When using the data pin to supply power, add the DC power to the midpoint of the transmission transformer without affecting the data transmission. In this way, line pairs 1 and 2 and line pairs 3 and 6 can be used for data signal transmission. A complete POE system includes two parts: power supply equipment (PSE, Power Sourcing Equipment) and power receiving equipment (PD, Powered Device). The PSE device is a device that supplies power to Ethernet client devices, and is also the manager of the entire POE power supply process. The PD device is the PSE load that receives power, that is, the client device of the POE system, such as IP phones and other Ethernet devices (actually, any device with a power not exceeding 13W can obtain corresponding power from the RJ45 socket). Based on the IEEE 802.3af standard, the two establish information links about the connection status, device type, and power consumption level of the power receiving device PD, and use this as a basis to change the method of PSE supplying power to PD through Ethernet to direct access The DC 48V power supply is connected to the network wiring card slot through a twisted pair, connected to pins 4 and 5 as positive poles, and pins 7 and 8 as negative poles; pins 1, 2 and 3 and 6 are normally connected to the network incoming data signal, Leave the 4, 5 pins and 7, 8 pins of the network line in the air, so as to provide a complete RJ45 interface with POE power supply function. After connecting this interface to the IP phone, there is no need to install an external AC-to-DC power plug. .

The utility model has the advantages of simple and reasonable structure, strong practicability and good effect, and is beneficial to popularization and application.

Claims (3)

1. A simple external power supply POE power supply system, which is characterized in that the structure is as follows: the output lead wire of the -48V DC power panel air switch Ⅰ (1) required for POE power supply and the integrated data network switch for data signal transmission (2) is connected to the input terminal, the RJ45 interface of the integrated data network switch (2) is connected to the RJ45 crystal plug I (3), and the air switch II of the DC power supply screen II (4) The lead wire sequence 4 and 5 of the output end are wound and grounded , 7, 8 bare wire winding connection -48V and RJ45 crystal plug I (3) for data signal transmission 1, 2; 3, 6 are connected to the network wiring unit (5), the network wiring unit (5) ) is connected to the RJ45 plug II (6), the RJ45 port of the power receiving device (8) is connected to the RJ45 plug III (7), and the RJ45 plug II (6) is connected to the RJ45 plug III (7) through Connected with Cat5e twisted pair. 2. A simple external power supply POE power supply system according to claim 1, characterized in that the power receiving end device (8) is any one of an IP phone, a wifi wireless LAN access point AP, and a network camera species and more than one species. 3. A simple external power supply POE power supply system according to claim 1, characterized in that the POE power supply adopts Cat5e twisted pair and above standards as the connection medium.