WO2018227575A1

WO2018227575A1 - Portable repeater

Info

Publication number: WO2018227575A1
Application number: PCT/CN2017/088707
Authority: WO
Inventors: 孙炎升
Original assignee: 深圳市得城网络科技有限公司
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2018-12-20

Abstract

The present invention provides a portable repeater. The repeater comprises: a housing; two connectors connected to communication cables; a circuit board carrying the two connectors; and signal transmission portions for mutual connection of corresponding electrodes of the two connectors. The two connectors are carried at different surfaces of the circuit board in a manner in which the two connectors are in the insertion direction of the communication cables and are opposite to each other in directions. The housing is also provided with a protective pad. In the present invention, the two connectors are carried at different surfaces of the circuit board in a manner in which the two connectors are in the insertion direction of the communication cables and are opposite to each other in directions, so that crosstalk can be reduced and accordingly, the generation of time lag can be suppressed. Moreover, the whole structure is simple, costs are low, and the protective pad is added on the surface of the repeater body while the connection between a repeater and the outside is not changed, so as to effectively protect the repeater from being broken down by an electrostatic induced current and ensure the normal work of the repeater.

Description

Portable repeater

Technical field

Embodiments of the present invention relate to the field of communications equipment, and in particular, to a portable repeater.

Background technique

In the conventional repeater, since the two connectors are mounted on one surface of the circuit board, the electrodes of the same number of the two connectors are not disposed at the opposite positions, and the wiring of the circuit board is complicated, so that the wiring is complicated. The cross is increasing. Therefore, in the conventional repeater, there is a problem that crosstalk between a pair of electrodes is increased due to complication of wiring.

Further, since the wiring of the circuit board 33 is complicated, there is a problem that a difference in length of the electric line occurs in the pair of electrodes, and a time lag in the pair of electrodes is likely to occur.

The influence of crosstalk and time lag increases as the signal transmission speed increases. Therefore, in the repeater used for high-speed transmission, it is desirable to reduce crosstalk and time lag as much as possible.

technical problem

A technical problem to be solved by embodiments of the present invention is to provide a crosstalk reduction function, thereby enabling

A convenient repeater that suppresses the occurrence of time lag.

Technical solution

In order to solve the above problem, the technical solution adopted by the embodiment of the present invention is to provide a portable repeater, including a casing, and further comprising:

Two connectors to which a communication cable is connected;

And a circuit board on which the two connectors are mounted, and a signal transmission portion that connects the corresponding electrodes of the two connectors to each other;

The two connectors are mounted on different surfaces of the circuit board such that the insertion directions of the communication cables are opposite to each other;

A protective pad is further disposed on the outer casing.

Further, the two connectors are identical in structure.

Further, the circuit substrate is composed of a flexible printed circuit board.

Further, the two connectors are the electrodes of the first number and the second number, the third number and the sixth number, the fourth number and the fifth number, the seventh number and the eighth number as a pair Connector for the transmission of differential signals.

Further, the connector is a socket type connector according to the RJ45 specification.

Further, the protective pad is in contact with a surface of the outer casing, and the protective pad is composed of an insulating material.

Further, the protective pad has a thickness of at least 5 mm.

Further, the signal transmission unit has a linear main transmission path of the first to eighth numbers that connects the corresponding electrodes of the two connectors to each other,

The main transmission path is arranged in the order of the first number, the second number, the sixth number, the fourth number, the fifth number, the third number, the seventh number, and the eighth number.

Beneficial effect

According to the above aspect, the present invention has at least the following advantageous effects: the present invention can be mounted on different surfaces of the circuit board by connecting the two connectors so that the insertion directions of the communication cables are opposite to each other. The crosstalk is reduced, so that the generation of time lag can be suppressed. In addition, the overall structure is simple, the cost is low, and a protection pad is added on the surface of the repeater without changing the connection between the repeater and the outside, which can effectively protect the repeater. It is not broken down by static current, ensuring that the repeater works normally.

DRAWINGS

1 is a perspective exploded view of a portable repeater of the present invention.

Figure 2 is a side elevational view of the splitting of the present invention when the communication cable is connected.

Figure 3 is a perspective view of one embodiment of the present invention.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following illustrative embodiments and description are to be construed as illustrative only and not as a limitation of the invention, and the features of the embodiments and embodiments of the invention may be combined .

As shown in FIG. 1 to FIG. 3, the present invention provides a portable repeater 10, including a casing, and further comprising:

Two connectors 12 to which the communication cable 11 is connected;

And a circuit board 13 on which the two connectors 12 are mounted, and a signal transmission portion 17 that connects the corresponding electrodes 15 of the two connectors 12 to each other;

The two connectors 12 are mounted on different surfaces of the circuit board 13 such that the insertion direction of the communication cable 11 is opposite to each other;

A protective pad 30 is further disposed on the outer casing.

According to the present invention, since the two connectors 12 are mounted on different surfaces of the circuit board 13 such that the insertion direction of the communication cable 11 is opposite to each other, crosstalk can be reduced, and generation of time lag can be suppressed. The overall structure is simple and the cost is low. While the repeater 10 is connected to the outside world, a protective pad 30 is added on the surface of the repeater 10, which can effectively protect the repeater 10 from being broken by the electrostatic current, thereby ensuring that the repeater 10 is not broken by the electrostatic current. The repeater 10 operates normally.

The repeater 10 includes two connectors 12 to which the communication cable 11 is connected and a circuit board 13 on which the two connectors 12 are mounted, thereby connecting the communication cables 11 connected to the two connectors 12 to each other.

As the communication cable 11, a general-purpose LAN (Local Area Network, Local Area Network) can be used. ) Cable. In the present embodiment, as the communication cable 11, a cable having four pairs (total of eight) of signal lines for transmitting a differential signal is used.

The connector 12 is, for example, a socket type connector according to the RJ45 standard, and is configured to be connectable to a cable connector 14 (for example, a plug type connector according to the RJ45 standard) provided at an end portion of the communication cable 11.

The connector 12 has eight electrodes 15 (terminals) corresponding to eight signal lines of the communication cable 11, and the first number and the second number, the third number and the sixth number, the fourth number, the fifth number, and the seventh number The electrode 15 of the eighth number is used as a pair for transmitting a differential signal.

An insertion hole 16 into which the cable connector 14 provided at the end of the communication cable 11 is inserted is provided on the front surface of the connector 12, and the electrode 15 is protruded from one side of the connector 12. Below, Figure 1 ( The vertical direction of a) is called the height direction, the left and right direction is called the length direction, and the left front direction to the right depth direction is called the width direction.

In the present embodiment, the connector 12 is provided with the electrodes 15 of the first to eighth numbers at equal intervals in the width direction, and is provided to protrude in the height direction. Here, the odd-numbered electrode 15 and the even-numbered electrode 15 are disposed at different positions in the longitudinal direction, but they may be arranged on a straight line at the same position in the longitudinal direction. By arranging the odd-numbered electrode 15 and the even-numbered electrode 15 at positions different in the longitudinal direction, the connection work of the electrode 15 is facilitated, and in particular, when a small device is used as the connector 12, Connection work becomes easy.

In the present embodiment, as the two connectors 12, connectors of the same configuration are used. Further, the present invention is not limited thereto, and the two connectors 12 may have the same positional relationship of the electrodes 15.

The circuit board 13 has a signal transmission portion 17 that connects the corresponding electrodes 15 of the two connectors 12 to each other. The signal transmission unit 17 has eight straight lines of the first to eighth numbers corresponding to the first to fifth eighth to eighth electrodes 15 of the connector 12 (when the circuit board 13 is bent, the signal board 13 is followed by the circuit board 13 The shape of the shape) the main transfer path 18, the spacer 19 connecting the electrodes 15, and the main transfer path 18 are connected by the wiring portion 20. In addition, reference numerals 1 to 8 of FIG. 1 denote electrodes 15 (pad 19 ) and the number of the main transmission path 18.

Then, in the repeater 10 of the present embodiment, the two connectors 12 are mounted on different surfaces of the circuit board 13 such that the insertion direction of the communication cable 11 is opposite to each other.

The two connectors 12 are mounted on both ends in the longitudinal direction of the circuit board 13 in a state of being reversed upside down and reversing left and right. The connector 12 on one side (the left side of the drawing) is mounted on the back surface of the circuit board 13 , and the connector 12 on the other side (the right side in the drawing) is mounted on the surface of the circuit board 13 . The two connectors 12 are mounted on the circuit board 13 such that the insertion direction of the communication cable 11 coincides with the longitudinal direction, and the electrode 15 is fixed to the pad 19 by soldering or the like, and is fixed to the circuit board 13.

The two connectors 12 are mounted on different surfaces of the circuit board 13 such that the insertion direction of the communication cable 11 is opposite to each other. For example, in FIG. 1, the first electrode 15 is disposed in both connectors 12. On the right side of the right side, the eighth electrode 15 is disposed on the left front side in both connectors 12, so that the corresponding electrodes 15 of the two connectors 12 are disposed to face each other. As a result, the wiring of the wiring portion 20 can be simplified, and the intersection (or no intersection) of the wiring can be reduced, and crosstalk between the pair of electrodes can be reduced.

Further, in the present embodiment, as the circuit board 13, a flexible printed circuit board (FPC) is used. ). Since the FPC can be easily bent, the circuit board 13 can be bent in a substantially S-shape when viewed from the side, so that the positions of the two connectors 12 in the height direction can be made uniform, and the size of the entire repeater 10 can be reduced.

Further, in the present embodiment, the main transmission path 18 of the signal transmission unit 17 is from the one side in the width direction (the rightward side in FIG. 1) to the other side (the left and the front side in FIG. 1), according to the first number, The order of the second, sixth, fourth, fifth, third, seventh, and eighth is arranged.

Among the specifications of TIA/EIA-568-B as determined by the American Standards Association, No. 1, No. 2, No. 3 and No. 6, No. 4 and No. 5, No. 7 and No. 8 Since a pair is used, the pair of the third and sixth numbers is in a state of holding the pair of the fourth number and the fifth number, and is caused by the influence of the pair of the third number and the sixth number. Crosstalk increases. In particular, in the connector 12 in which the distance between the lines is narrowed, the influence of crosstalk increases, which becomes a problem when the signal speed is increased.

Therefore, in the present embodiment, the crosstalk generated in the connector 12 is canceled by replacing the position of the third main transmission path 18 and the sixth main transmission path 18. The current caused by crosstalk from the pair of the third and sixth pairs to the other pair and the current caused by the crosstalk from the other pair to the third and sixth pairs are in the connector 12 is inverted with respect to the main transmission path 18, and as a result, crosstalk can be further reduced.

Further, although the positions of the main transmission path 18 of the third number and the main transmission path 18 of the sixth number are replaced, the arrangement of the pair of the third number and the sixth number is maintained, even if the other pair of main transmission paths 18 are replaced. The position can also get the same effect. In this case, the arrangement of the main transmission path 18 is in the order of the second number, the first number, the third number, the fifth number, the fourth number, the sixth number, the eighth number, and the seventh number.

Further, although the case where the repeater 10 is used as a single unit has been described, a plurality of repeaters 10 may be arranged to be modularized to constitute a repeater module. Install the repeater module on IEC60917 ( The 1U-size front panel defined by JIS C 6010) is provided on the back side of the repeater module so as to extend from the back side and extend from the back side (connected to the connector 12 on the back side). The communication cable 11 is used for the case of a cable holder for reducing the load applied to the connection portion of the communication cable 11.

As described above, in the repeater 10 of the present embodiment, the two connectors 12 are mounted on different surfaces of the circuit board 13 such that the insertion directions of the communication cables 11 are opposite to each other.

With the above configuration, the corresponding electrodes 15 of the two connectors 12 are disposed to face each other, so that the intersection of the wirings of the circuit board 13 can be reduced, and crosstalk between the pair can be reduced.

Moreover, according to the present embodiment, since the wiring of the circuit board 13 can be simplified, it is possible to suppress the occurrence of the difference in the length of the electric line in the pair, and to suppress the occurrence of the time lag in the pair.

The problem of crosstalk and time lag increases the speed of the signal. Therefore, the repeater 10 of the present embodiment can be said to be particularly suitable for high-speed transmission use. The repeater 10 can be applied to, for example, 1 Gbps or more and further high speed transmission of 10 Gbps or more.

Further, in the present embodiment, since the connectors having the same configuration are used as the two connectors 12, the repeater 10 can be realized at low cost without increasing the number of components.

Further, in the present embodiment, since the flexible printed circuit board is used as the circuit board 13, the circuit board 13 can be bent to match the positions of the two connectors 12 in the height direction, and the repeater 10 can be downsized.

Further, in the present embodiment, the main transport path 1 is arranged in the order of the first number, the second number, the sixth number, the fourth number, the fifth number, the third number, the seventh number, and the eighth number, so that it is possible to The crosstalk between the third and sixth pairs is further reduced.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention.

For example, in the above-described embodiment, the case where the two connectors 12 are mounted on the circuit board 13 has been described. However, a plurality of sets of the connectors 12 may be mounted on the common circuit board 13, and a plurality of sets of communication can be realized. The cable 11 is connected.

As shown in FIG. 3, in an alternative embodiment, the protective pad 30 is in contact with the surface of the outer casing, and the protective pad 30 is composed of an insulating material. Specifically, the protective pad 30 has a thickness of at least 5 mm. In order to effectively protect the portable repeater from being interrupted by current, the protective pad 30 is made of an insulating material, and the protective pad 30 is prevented from being too thin to be effectively insulated. The thickness of the protective pad 30 is at least 5 mm.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.

Claims

A portable repeater includes a housing, and the method further includes:

Two connectors to which a communication cable is connected;

And a circuit board on which the two connectors are mounted, and a signal transmission portion that connects the corresponding electrodes of the two connectors to each other;

The two connectors are mounted on different surfaces of the circuit board such that the insertion directions of the communication cables are opposite to each other;

A protective pad is further disposed on the outer casing.
The portable repeater of claim 1 wherein said two connectors are identical in construction.
The portable repeater according to claim 1, wherein said circuit substrate is composed of a flexible printed circuit board.
The portable repeater according to any one of claims 1 to 3, wherein the two connectors are the first number and the second number, the third number, the sixth number, and the fourth number The electrodes of Nos. 5, 7 and 8 are used as a pair of connectors for the transmission of differential signals.
The portable repeater according to any one of claims 1 to 3, wherein the connector is a socket type connector according to the RJ45 specification.
The portable repeater according to claim 1, wherein the protective pad is in contact with a surface of the outer casing, and the protective pad is composed of an insulating material.
The portable repeater according to claim 1 or 6, wherein the protective pad has a thickness of at least 5 mm.
The portable repeater according to claim 4, wherein the signal transmission portion has a linear number of the first to eighth numbers that connect the corresponding electrodes of the two connectors to each other Main transmission road,

The main transmission path is arranged in the order of the first number, the second number, the sixth number, the fourth number, the fifth number, the third number, the seventh number, and the eighth number.