Patent Publication Number: US-2015064938-A1

Title: Pin module of rj connector

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 102131213 filed in Taiwan, Republic of China on Aug. 30, 2013, the entire contents of which are hereby incorporated by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of Invention 
     The present invention relates to an RJ connector and, in particular, to a pin module of the RJ connector. 
     2. Related Art 
     With the progress of technologies, the current electronic apparatuses are mostly manufactured with miniaturization and more functions. Besides, for the data transmission between different kinds of electronic apparatuses, several different communication protocols and the connectors thereof are developed for connecting the electronic apparatuses and achieving their data transmission. Recently, the connector mostly used in the network interface is a twisted pair connector, which can be divided into two kinds of a RJ-45 connector and a RJ-11 connector. 
     Besides, since the electronic apparatus trend to multiple and smart functions, the amount of signal that needs to be transmitted in the whole system is gradually increased. However, at the same time, the electronic components and products trend to the lightness and miniaturization. Accordingly, for the requirements of heavy signal transmission and miniaturization, the RJ connector applied to the high frequency transmission is made with more pins and a smaller size. 
     However, since the conductive pins of the RJ connector are usually separately installed inside the insulation base in parallel, the adjacent pins may easily generate capacitive coupling when transmitting high-speed or high-frequency signals. This undesired capacitive coupling will cause the crosstalk interference between the pair of adjacent pins, thereby resulting the signal deformation and decay so as to affect the accuracy of the signal transmission and the normal operation of the electronic apparatus. Regarding to the crosstalk interference, a filter device is configured in the connector for minimizing the interference or noise. However, this approach will sufficiently increase the manufacturing cost of the cost and harm the minimization of the connector. 
     In addition, on the signal transmission route of the transmission system, the conductive pins can easily generate impedance mismatch, which further causes the insertion loss of the signal transmission so as to decrease the signal transmission quality. 
     Therefore, it is an important subject to provide a pin module of an RJ connector that has a simple design and configuration for preventing the crosstalk interference and insertion loss of the high-frequency signal transmission, thereby effectively improving the signal transmission quality and increasing the signal transmission efficiency. 
     SUMMARY OF THE INVENTION 
     In view of the foregoing subject, an objective of the present invention is to provide a pin module of an RJ connector that has a simple design and configuration for preventing the crosstalk interference and insertion loss of the high-frequency signal transmission, thereby effectively improving the signal transmission quality and increasing the signal transmission efficiency. 
     To achieve the above objective, the present invention discloses a pin module of an RJ connector. The pin module includes a circuit board and eight pins, which contain a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin and an eighth pin. Each pin includes a turning part and a stretching part, and one end of the turning part is extended to form a first end of the corresponding pin. The first ends of the eight pins are arranged in a series. One end of the stretching part is coupled to the other end of the corresponding turning part, and the other end of the stretching part is extended to form a second end of the corresponding pin. The second ends of the eight pins clip the circuit board. 
     In one embodiment, the second ends of the first pin, the second pin, the third pin and the fourth pin are disposed on a first surface of the circuit board, and the second ends of the fifth pin, the sixth pin, the seventh pin and the eighth pin are disposed on a second surface of the circuit board. 
     In one embodiment, the projection of the second end of the third pin on the circuit board is not overlapped with the projection of the second end of the sixth pin on the circuit board. 
     In one embodiment, the projection of the second end of the fourth pin on the circuit board is not overlapped with the projection of the second end of the fifth pin on the circuit board. 
     In one embodiment, each of the stretching parts of the third pin and the sixth pin further includes a first section, a second section and a bending section coupled to the first section and the second section. 
     In one embodiment, the length of the first section is smaller that that of the second section. 
     To achieve the above objective, the present invention also discloses a pin module of an RJ connector, which includes a circuit board and eight pins. The eight pins contain a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin and an eighth pin. Each pin includes a turning part, a stretching part and a bending part. One end of the turning part is extended to form a first end of the corresponding pin, and the first ends of the eight pins are arranged in a series. One end of the stretching part is coupled to the other end of the corresponding turning part. One end of the bending part is coupled to the other end of the corresponding stretching part, and the other end of the bending part is extended to form a second end of the corresponding pin. Each bending part has at least one bending. The second ends of the pins clip the circuit board. 
     In one embodiment, the second ends of the first pin, the second pin, the third pin and the fourth pin are disposed on a first surface of the circuit board, and the second ends of the fifth pin, the sixth pin, the seventh pin and the eighth pin are disposed on a second surface of the circuit board. 
     In one embodiment, the second ends of the first pin and the second pin are misaligned with the second ends of the eighth pin and the seventh pin. 
     In one embodiment, the projection of the second end of the third pin on the circuit board is not overlapped with the projection of the second end of the sixth pin on the circuit board. 
     In one embodiment, the projection of the second end of the fourth pin on the circuit board is not overlapped with the projection of the second end of the fifth pin on the circuit board. 
     To achieve the above objective, the present invention further discloses a pin module of an RJ connector, which includes a circuit board and eight pins. The eight pins contain a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin and an eighth pin. Each pin includes a turning part and a stretching part. One end of the turning part is extended to form a first end of the corresponding pin, and the first ends of the eight pins are arranged in a series. One end of the stretching part is coupled to the other end of the corresponding turning part. Each of the other ends of the stretching parts of the first, second, seventh and eighth pins is coupled to one end of a bending part, which has at least one bending. The other ends of the bending parts are extended to form second ends of the first, second, seventh and eighth pins, respectively. The other ends of the stretching parts of the third, fourth, fifth and sixth pins are extended to form second ends of the third, fourth, fifth and sixth pins, respectively. The second ends of the pins clip the circuit board. 
     In one embodiment, the second ends of the first pin, the second pin, the third pin and the fourth pin are disposed on a first surface of the circuit board, and the second ends of the fifth pin, the sixth pin, the seventh pin and the eighth pin are disposed on a second surface of the circuit board. 
     In one embodiment, each of the stretching parts of the third pin and the sixth pin further comprises a first section, a second section and a bending section coupled to the first section and the second section. In one embodiment, the length of the first section is smaller that that of the second section. 
     In one embodiment, the projection of the second end of the third pin on the circuit board is not overlapped with the projection of the second end of the sixth pin on the circuit board. 
     In one embodiment, the projection of the second end of the fourth pin on the circuit board is not overlapped with the projection of the second end of the fifth pin on the circuit board. 
     In one embodiment, the second ends of the first pin and the second pin are misaligned with the second ends of the eighth pin and the seventh pin. 
     As mentioned above, the pin module of the RJ connector of the invention has novel pin shape and pin configuration for effectively improving the signal transmission efficiency and effect of the RJ connector. In addition, the novel pin design can further decrease the capacitive coupling of high-frequency signal transmission, so that the crosstalk interference can be reduced. Compared with the conventional art, the present invention uses simple design and process to achieve the goal of improving signal resolution and accuracy rather than configuring the additional filter. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will become more fully understood from the subsequent detailed description and accompanying drawings, which are given by way of illustration only, and thus are not limitative of the present invention, and wherein: 
         FIG. 1A  is a schematic diagram showing a pin module of an RJ connector according to a preferred embodiment of the invention; 
         FIG. 1B  and  FIG. 1C  are schematic diagrams showing eight pins of the pin module of the RJ connector according to the embodiment of the invention; 
         FIG. 2A  is a schematic diagram showing a pin module of an RJ connector according to another embodiment of the invention; 
         FIG. 2B  and  FIG. 2C  are schematic diagrams showing eight pins of the pin module of the RJ connector of  FIG. 2A ; 
         FIG. 3A  is a schematic diagram showing a pin module of an RJ connector according to another embodiment of the invention; 
         FIG. 3B  is a schematic diagram showing eight pins of the pin module of the RJ connector of  FIG. 3A ; and 
         FIG. 3C  is a schematic diagram showing four pins of the pin module of the RJ connector of  FIG. 3A . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements. 
       FIG. 1A  is a schematic diagram showing a pin module of an RJ connector according to a preferred embodiment of the invention, and  FIGS. 1B and 1C  are schematic diagrams showing eight pins of the pin module of the RJ connector according to the embodiment of the invention. Referring to  FIGS. 1A ,  1 B and  1 C, the pin module M includes a circuit board B and eight pins, which contain a first pin  1 , a second pin  2 , a third pin  3 , a fourth pin  4 , a fifth pin  5 , a sixth pin  6 , a seventh pin  7 , and an eighth pin  8 . In this embodiment, the pin module M of the RJ connector is applied to the Netcom connectors. In practice, the pin module M is applied cooperating with, for example but not limited to, a modular jack. Of course, the pin module M can be applied to any electric connector with the structure of the RJ connector, and this invention is not limited thereto. The circuit board B is, for example but not limited to, a printed circuit board (PCB), which has a plurality conductive pads for electrically connecting with the pins. 
     As shown in  FIGS. 1A ,  1 B and  1 C, the first pin  1  includes a turning part  13  and a stretching part  14 , the second pin  2  includes a turning part  23  and a stretching part  24 , the third pin  3  includes a turning part  33  and a stretching part  34 , the fourth pin  4  includes a turning part  43  and a stretching part  44 , the fifth pin  5  includes a turning part  53  and a stretching part  54 , the sixth pin  6  includes a turning part  63  and a stretching part  64 , the seventh pin  7  includes a turning part  73  and a stretching part  74 , and the eighth pin  8  includes a turning part  83  and a stretching part  84 . 
     One ends of the turning parts  13 ,  23 ,  33 ,  43 ,  53 ,  63 ,  73  and  83  are extended to form the first ends  11 ,  21 ,  31 ,  41 ,  51 ,  61 ,  71  and  81  of the first pin  1 , the second pin  2 , the third pin  3 , the fourth pin  4 , the fifth pin  5 , the sixth pin  6 , the seventh pin  7  and the eighth pin  8 , respectively. The first ends  11 ,  21 ,  31 ,  41 ,  51 ,  61 ,  71  and  81  are arranged in a series. 
     One ends of the stretching parts  14 ,  24 ,  34 ,  44 ,  54 ,  64 ,  74  and  84  are coupled to the other ends of the corresponding turning parts  13 ,  23 ,  33 ,  43 ,  53 ,  63 ,  73  and  83 , respectively. The other ends of the stretching parts  14 ,  24 ,  34 ,  44 ,  54 ,  64 ,  74  and  84  are extended to form second ends  12 ,  22 ,  32 ,  42 ,  52 ,  62 ,  72  and  82  of the first pin  1 , the second pin  2 , the third pin  3 , the fourth pin  4 , the fifth pin  5 , the sixth pin  6 , the seventh pin  7  and the eighth pin  8 , respectively. 
     To be noted, the eight pins are grouped into four signal pairs, and every signal pair includes two pins. In this case, the first and second pins  1  and  2  are a signal pair, the fourth and fifth pins  4  and  5  are a signal pair, the seventh and eighth pins  7  and  8  are a signal pair, and the third and sixth pins  3  and  6  are a signal pair. 
     The second end  12  of the first pin  1 , the second end  22  of the second pin  2 , the second end  32  of the third pin  3  and the second end  42  of the fourth pin  4  are disposed on a first surface B1 of the circuit board B. The second end  52  of the fifth pin  5 , the second end  62  of the sixth pin  6 , the second end  72  of the seventh pin  7  and the second end  82  of the eighth pin  8  are disposed on a second surface B2 of the circuit board B. The second ends  12 ,  22 ,  32 ,  42 ,  52 ,  62 ,  72  and  82  of the pins clip the circuit board B. 
     In this embodiment, the stretching parts  14 ,  24  and  34  of the first, second and third pins  1 ,  2  and  3  are configured corresponding to the stretching parts  84 ,  74  and  64  of the eighth, seventh and sixth pins  8 ,  7  and  6 . In addition, the stretching parts are extended oppositely and then bent perpendicularly, thereby stretching to form the second ends  12 ,  22 ,  32 ,  62 ,  72  and  82 . This configuration and structure can decrease the transmission interference and insertion loss of the signal transmission. 
     Besides, in this embodiment, the projection of the second end  32  of the third pin  3  on the circuit board B is not overlapped with the projection of the second end  62  of the sixth pin  6  on the circuit board B. In other words, the second end  32  of the third pin  3  and the second end  62  of the sixth pin  6  are misaligned on the direction of the circuit board B. This configuration and design can reduce the signal delay of the signal pair transmitting through the third pin  3  and the sixth pin  6 . 
     Similarly, in this embodiment, the projection of the second end  42  of the fourth pin  4  on the circuit board B is not overlapped with the projection of the second end  52  of the fifth pin  5  on the circuit board B. This configuration can reduce the signal delay of the signal pair transmitting through the fourth pin  4  and the fifth pin  5 . 
     To be noted, in this embodiment, the second end  32  of the third pin  3  and the second end  62  of the sixth pin  6  are misaligned, and the second end  42  of the fourth pin  4  and the second end  52  of the fifth pin  5  are misaligned. However, in other embodiments, the arrangement of the second ends can be various depending on the actual requirement. For example, only the second end  32  of the third pin  3  and the second end  62  of the sixth pin  6  are misaligned, or only the second end  42  of the fourth pin  4  and the second end  52  of the fifth pin  5  are misaligned. Of course, the second ends  12 ,  22 ,  32  and  42  disposed on the first surface B1 of the circuit board B are all misaligned with the second ends  82 ,  72 ,  62  and  52  disposed on the second surface B2 of the circuit board B. 
       FIG. 2A  is a schematic diagram showing another pin module of an RJ connector according to the embodiment of the invention, and  FIGS. 2B and 2C  are schematic diagrams showing eight pins of the pin module of the RJ connector of  FIG. 2A . Referring to  FIGS. 2A ,  2 B and  2 C, the pin module Ma includes a circuit board B and eight pins, which contain a first pin  1   a , a second pin  2   a , a third pin  3   a , a fourth pin  4   a , a fifth pin  5   a , a sixth pin  6   a , a seventh pin  7   a , and an eighth pin  8   a . The hardware aspects of the RJ connector and the circuit board B can be referred to the previous embodiment, so the detailed description thereof will be omitted. 
     The first pin  1   a  includes a turning part  13   a , a stretching part  14   a  and a bending part  15   a , the second pin  2   a  includes a turning part  23   a , a stretching part  24   a  and a bending part  25   a , the third pin  3   a  includes a turning part  33   a , a stretching part  34   a  and a bending part  35   a , the fourth pin  4   a  includes a turning part  43   a , a stretching part  44   a  and a bending part  45   a , the fifth pin  5   a  includes a turning part  53   a , a stretching part  54   a  and a bending part  55   a , the sixth pin  6   a  includes a turning part  63   a , a stretching part  64   a  and a bending part  65   a , the seventh pin  7   a  includes a turning part  73   a , a stretching part  74   a  and a bending part  75   a , and the eighth pin  8   a  includes a turning part  83   a , a stretching part  84   a  and a bending part  85   a.    
     One ends of the turning parts  13   a ,  23   a ,  33   a ,  43   a ,  53   a ,  63   a ,  73   a  and  83   a  are extended to form the first ends  11   a ,  21   a ,  31   a ,  41   a ,  51   a ,  61   a ,  71   a  and  81   a  of the first pin  1   a , the second pin  2   a , the third pin  3   a , the fourth pin  4   a , the fifth pin  5   a , the sixth pin  6   a , the seventh pin  7   a  and the eighth pin  8   a , respectively. The first ends  11   a ,  21   a ,  31   a ,  41   a ,  51   a ,  61   a ,  71   a  and  81   a  are arranged in a series. 
     One ends of the stretching parts  14   a ,  24   a ,  34   a ,  44   a ,  54   a ,  64   a ,  74   a  and  84   a  are coupled to the other ends of the turning parts  13   a ,  23   a ,  33   a ,  43   a ,  53   a ,  63   a ,  73   a  and  83   a , respectively. The stretching parts  14   a ,  24   a ,  34   a  and  44   a  are disposed corresponding to the other stretching parts  84   a ,  74   a ,  64   a  and  54   a , and the stretching parts are away from each other on the disposing plane. 
     One ends of the bending parts  15   a ,  25   a ,  35   a ,  45   a ,  55   a ,  65   a ,  75   a  and  85   a  are coupled to the other ends of the stretching parts  14   a ,  24   a ,  34   a ,  44   a ,  54   a ,  64   a ,  74   a  and  84   a , respectively. Each of the bending parts  15   a ,  25   a ,  35   a ,  45   a ,  55   a ,  65   a ,  75   a  and  85   a  has at least one bending. Besides, the other ends of the bending parts  15   a ,  25   a ,  35   a ,  45   a ,  55   a ,  65   a ,  75   a  and  85   a  are extended to from second ends  12   a ,  22   a ,  32   a ,  42   a ,  52   a ,  62   a ,  72   a  and  82   a  of the corresponding pins  1 - 8 . In more specific, the plane of the bending parts  15   a ,  25   a ,  35   a ,  45   a ,  55   a ,  65   a ,  75   a  and  85   a  is perpendicular to the plane of the stretching parts  14   a ,  24   a ,  34   a ,  44   a ,  54   a ,  64   a ,  74   a  and  84   a . Moreover, the bending parts  15   a ,  25   a ,  35   a ,  45   a ,  55   a ,  65   a ,  75   a  and  85   a  are bent and extended toward a central line so as to form the second ends  12   a ,  22   a ,  32   a ,  42   a ,  52   a ,  62   a ,  72   a  and  82   a . The pins  1 - 8  clip the circuit board B through the second ends  12   a ,  22   a ,  32   a ,  42   a ,  52   a ,  62   a ,  72   a  and  82   a.    
     In this embodiment, the second end  12   a  of the first pin  1   a , the second end  22   a  of the second pin  2   a , the second end  32   a  of the third pin  3   a  and the second end  42   a  of the fourth pin  4   a  are disposed on a first surface B1 of the circuit board B. The second end  52   a  of the fifth pin  5   a , the second end  62   a  of the sixth pin  6   a , the second end  72   a  of the seventh pin  7   a  and the second end  82   a  of the eighth pin  8   a  are disposed on a second surface B2 of the circuit board B. The second end  12   a  of the third pin  1   a  and the second end  22   a  of the second pin  2   a  are misaligned with the second end  82   a  of the eighth pin  8   a  and the second end  72   a  of the seventh pin  7   a . In other words, the projection of the second end  82   a  of the eighth pin  8   a  on the circuit board B is located between the projections of the second ends  12   a  and  22   a  of the first pin  1   a  and the second pin  2   a  on the circuit board B. Besides, the projection of the second end  22   a  of the second pin  2   a  on the circuit board B is located between the projections of the second ends  82   a  and  72   a  of the eighth pin  8   a  and the seventh pin  7   a  on the circuit board B. 
     Besides, in this embodiment, the projection of the second end  32   a  of the third pin  3   a  on the circuit board B is not overlapped with the projection of the second end  62   a  of the sixth pin  6   a  on the circuit board B. In other words, the second end  32   a  of the third pin  3   a  and the second end  62   a  of the sixth pin  6   a  are misaligned on the direction of the circuit board B. This configuration and design can reduce the signal delay of the signal pair transmitting through the third pin  3   a  and the sixth pin  6   a.    
     Similarly, in this embodiment, the projection of the second end  42   a  of the fourth pin  4   a  on the circuit board B is not overlapped with the projection of the second end  52   a  of the fifth pin  5   a  on the circuit board B. This configuration can reduce the signal delay of the signal pair transmitting through the fourth pin  4   a  and the fifth pin  5   a.    
       FIG. 3A  is a schematic diagram showing another pin module of an RJ connector according to the embodiment of the invention,  FIG. 3B  is a schematic diagram showing eight pins of the pin module of the RJ connector of  FIG. 3A , and  FIG. 3C  is a schematic diagram showing four pins of the pin module of the RJ connector of  FIG. 3A . Referring to  FIGS. 3A ,  3 B and  3 C, the pin module Mb includes a circuit board B and eight pins, which contain a first pin  1   b , a second pin  2   b , a third pin  3   b , a fourth pin  4   b , a fifth pin  5   b , a sixth pin  6   b , a seventh pin  7   b , and an eighth pin  8   b . The hardware aspects of the RJ connector and the circuit board B can be referred to the previous embodiment, so the detailed description thereof will be omitted. 
     The first pin  1   b  includes a turning part  13   b  and a stretching part  14   b , the second pin  2   b  includes a turning part  23   b  and a stretching part  24   b , the third pin  3   b  includes a turning part  33   b  and a stretching part  34   b , the fourth pin  4   b  includes a turning part  43   b  and a stretching part  44   b , the fifth pin  5   b  includes a turning part  53   b  and a stretching part  54   b , the sixth pin  6   b  includes a turning part  63   b  and a stretching part  64   b , the seventh pin  7   b  includes a turning part  73   b  and a stretching part  74   b , and the eighth pin  8   b  includes a turning part  83   b  and a stretching part  84   b.    
     One ends of the turning parts  13   b ,  23   b ,  33   b ,  43   b ,  53   b ,  63   b ,  73   b  and  83   b  are extended to form the first ends  11   b ,  21   b ,  31   b ,  41   b ,  51   b ,  61   b ,  71   b  and  81   b  of the first pin  1   b , the second pin  2   b , the third pin  3   b , the fourth pin  4   b , the fifth pin  5   b , the sixth pin  6   b , the seventh pin  7   b  and the eighth pin  8   b , respectively. The first ends  11   b ,  21   b ,  31   b ,  41   b ,  51   b ,  61   b ,  71   b  and  81   b  are arranged in a series. 
     In this embodiment, the other ends of the stretching parts  13   b ,  23   b ,  73   b  and  83   b  of the first pin  1   b , the second pin  2   b , the seventh pin  7   b  and the eighth pin  8   b  are coupled to one ends of the bending parts  15   b ,  25   b ,  75   b  and  85   b , respectively. Each of the bending parts  15   b ,  25   b ,  75   b  and  85   b  includes at least one bending. The other ends of the bending parts  15   b ,  25   b ,  75   b  and  85   b  are extended to form the second ends  12   b ,  22   b ,  72   b  and  82   b  of the first pin  1   b , the second pin  2   b , the seventh pin  7   b  and the eighth pin  8   b.    
     The other ends of the stretching parts  33   b ,  43   b ,  53   b  and  63   b  of the third pin  3   b , the fourth pin  4   b , the fifth pin  5   b  and the sixth pin  6   b  are extended to form the second ends  32   b ,  42   b ,  52   b  and  62   b  of the third pin  3   b , the fourth pin  4   b , the fifth pin  5   b  and the sixth pin  6   b.    
     The second end  12   b  of the first pin  1   b , the second end  22   b  of the second pin  2   b , the second end  32   b  of the third pin  3   b  and the second end  42   b  of the fourth pin  4   b  are disposed on a first surface B1 of the circuit board B. The second end  52   b  of the fifth pin  5   b , the second end  62   b  of the sixth pin  6   b , the second end  72   b  of the seventh pin  7   b  and the second end  82   b  of the eighth pin  8   b  are disposed on a second surface B2 of the circuit board B. The second ends  12   b ,  22   b ,  32   b ,  42   b ,  52   b ,  62   b ,  72   b  and  82   b  of the pins clip the circuit board B. 
     In this embodiment, the stretching parts  14   b  and  24   b  of the first and second pins  1   b  and  2   b  are configured corresponding to the stretching parts  84   b  and  74   b  of the eighth and seventh pins  8   b  and  7   b . The stretching parts are disposed away from each other on their plane. The stretching part  34   b  of the third pin  3   b  includes a first section  341 , a second section  342  and a bending section  343 , and the sixth stretching part  64   b  of the sixth pin  6   b  includes a first section  641 , a second section  642  and a bending section  643 . The bending section  343  is coupled to the first section  341  and the second section  342 , and the bending section  643  is coupled to the first section  641  and the second section  642 . In addition, the length of the first section  341  is smaller than that of the second section  342 , and the length of the first section  641  is smaller than that of the second section  642 . 
     Accordingly, the four signal pairs can be kept with a larger interval, while the two pins of each signal pair can have smaller distance. In other words, the design of the invention can effectively minimize the crosstalk interference between the signal pairs, and decrease the transmission loss as the signals transmit through the two pins of each signal pair. 
     In other embodiments, the arrangement of the second ends can be various depending on the actual requirement. For example, the second end  32   b  of the third pin  3   b  and the second end  62   b  of the sixth pin  6   b  are misaligned, or the second end  42   b  of the fourth pin  4   b  and the second end  52   b  of the fifth pin  5   b  are misaligned. Of course, the second ends  12   b ,  22   b ,  32   b  and  42   b  disposed on the first surface B1 of the circuit board B are all misaligned with the second ends  82   b ,  72   b ,  62   b  and  52   b  disposed on the second surface B2 of the circuit board B. 
     To be noted, the above embodiments teach that the circuit board is clipped by the second ends of the pins. In practice, the circuit board can be chipped by the pins in advance and then fixed by welding. This invention is not limited. 
     In summary, the pin module of the RJ connector of the invention has novel pin shape and pin configuration for effectively improving the signal transmission efficiency and effect of the RJ connector. In addition, the novel pin design can further decrease the capacitive coupling of high-frequency signal transmission, so that the crosstalk interference can be reduced. Compared with the conventional art, the present invention uses simple design and process to achieve the goal of improving signal resolution and accuracy rather than configuring the additional filter. 
     Although the present invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the present invention.