JPH0998457A - Printed wiring board wiring method and matrix terminal wiring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To practically use the device of connector connection through a printed wiring board by turning wiring to pair lines, turning the pair lines to patterns between vertically adjacent two layers, turning the wiring groups of the pair lines to small groups and performing routing by a small group unit. SOLUTION: The pair lines 4 are allocated to the two adjacent layers in a multi-layer plate. Thus, a wiring path is well simplified when it is considered with one line as a base. Then, the wiring is turned to the small groups. For instance, the respective sides of a matrix are grouped for every four pair lines or every eight pair lines, etc., and routes are allocated for the respective groups. Also, a required distance is placed between group wiring patterns. Then, in this case, when a twist 5 for guaranteeing a required SN ratio to adjacent crosstalk is inserted corresponding to the distance for the wiring patterns inside the group, crosstalk characteristics between the pair lines inside the small group is suppressed.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board wiring method and a matrix terminal wiring method for connecting connectors between matrices via a printed wiring board.

2. Description of the Related Art Conventionally, an automatic MDF device for automatically jumpering a main distribution board (MDF) connecting a telephone exchange and a subscriber line using a robot, wiring between dedicated line networks, and relay lines In a wiring system such as wiring between terminals and wiring between a switch and a transmission device, a method of jumpering directly between matrices is generally used, and a method of connecting a connector through a printed wiring board has the following problems. It was not put to practical use because it had it.

FIG. 11 is an explanatory view showing the characteristics of the wiring of the printed wiring board for connector connection. In the figure, 1 is a printed wiring board, 2 is a connector part, 3
Is a matrix, and here the matrix 3 is realized by a double matrix board. Here, in the case of such a device, it is necessary to wire the pair lines of 1 to 64 from the four sides of the matrix 3 so as to correspond to the 1 to 64 pairs of the connector unit 2. As is clear from the figure, the wiring on such a printed wiring board 1 has an extremely long average wiring length and has a mesh shape. Therefore, in the normal wiring method, the number of intersections is extremely large and the multi-layer degree is extremely large, which makes the device expensive and prevents its practical use. Although the double matrix board is used in this example, a single matrix board may be used. Further, although the number of matrices is shown as two here, it may be 3, 4, 5, ... Further, the connectors are also arranged so that they are output to one side of the input / output, but this is not limited to one side. In view of the above problems, it is an object of the present invention to obtain a method for reducing the number of layers and simplifying wiring paths, and to reduce the cost of a device for connector coupling via a printed wiring board and put it into practical use. .

SUMMARY OF THE INVENTION The present invention provides a printed wiring board wiring method for connecting connectors between matrices via a printed wiring board, wherein the wiring is a pair of wires, and the pair of wires is a pair of upper and lower adjacent layers. Pattern, and the wiring group of the pair of wires is divided into small groups, and routing is performed in small group units. At this time, the required S between the paired wires in the small group
It is good to add a twist that can secure the N ratio. Further, in the matrix terminal wiring method for connecting the connections between the matrices to each other through the printed wiring board, it is preferable that the matrix terminals are arranged in a staggered manner.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the first invention of the present application, showing route wiring. 2 is a sectional view taken along the line AA 'of FIG. 1, and FIG. 3 is a sectional view taken along the line BB' of FIG. In the first invention of the present application, first, the pair wire 4 is allocated between two adjacent layers in the multilayer board. As a result, the wiring path is 1
It can be simplified by thinking based on a book. next,
Group the wiring into small groups. For example, each side of the matrix is
As shown in (4), grouping is performed every four pairs of lines, every eight pairs of lines, etc., and the route is assigned to each group. Leave a required distance between the group wiring patterns. FIG.
[FIG. 6] is a plan view showing the same embodiment, showing wiring for guaranteed SN ratio. Here, regarding the wiring patterns in the above group, as shown in FIG. 4, when a twist 5 for ensuring a required SN ratio for adjacent crosstalk is inserted according to the distance, crosstalk between the paired wires 4 in the small group is performed. The characteristics can be suppressed. In FIG. 4, in the twist 5 of the parts a, b, c and f, I, II
Swap layers between pairs of layers, twist e of part 5 in III
, IV layers are exchanged between pairs, and in section d, pairs are vertically exchanged and pair layers are moved from I, II layer pairs to III, IV layer pairs. 5 is a perspective view of a main part showing details of the twist 5 of the d part in FIG. 4, FIG. 6 is a plan view of the main part, and 6 is a through hole in the drawing. Through the through hole 6a to move from the I layer to the III layer, and through hole 6b from the II layer to the IV layer. In addition, when group routing is used, when the terminals of the connector are reached, the order may be reversed. In this case, a pattern of line order inversion is inserted because the wiring is relatively free in the middle. 7 is a plan view showing an example of the arrangement order inversion method, and FIG. 8 is an exploded plan view of FIG. Next, the method of the second invention of the present application will be described. Since the terminal part of the matrix severely affects the wiring pattern, the pair wire 4
It is necessary to take a staggered pattern for each. FIGS. 9 and 10 are plan views showing matrix terminal arrangements and wiring examples, in which two matrices 3 are arranged side by side. In the figure, 7 is a matrix terminal pair. Here, FIG. 9 is a plan view showing a simple matrix terminal arrangement and wiring example. FIG. 10 is a plan view showing an embodiment of the second invention of the present application, showing a staggered terminal arrangement in consideration of the wiring of a printed wiring board. here,
In the method of FIG. 9, in order to draw the wiring from the left side matrix 3 to the right side of the right side matrix 3, only one inter-terminal pattern passage channel can be taken, and therefore four layers are indispensable for the pair line. On the other hand, in the method of the second invention of the present application shown in FIG. 10, since the terminal pair 7 of the matrix 3 on the right side can be doubled as shown in the figure, the number of pairs of lines is two. That is, by increasing the number of channels through which the terminal pair 7 passes, the multilayer degree does not become a bottleneck in this portion.

As described above in detail, according to the first invention of the present application, in the printed wiring board wiring method for connecting the connections between the matrices through the printed wiring board by the connector,
Since the wiring is a pair wire, the pair wire is a pattern between two upper and lower adjacent layers, and the wiring group of the pair line is subgrouped and the routing is performed in units of subgroups, the multiplicity is lowered and the wiring path is simplified. Therefore, there is an effect that a device for connecting a connector via a printed wiring board can be realized at a low cost. Further, in addition to the above configuration, if a twist capable of ensuring a required SN ratio is provided between the paired wires in the small group, there is an effect that the crosstalk characteristic between the paired wires in the small group can be suppressed. Further, according to the second invention of the present application, in the matrix terminal wiring method for connecting the connections between the matrices by the connector through the printed wiring board, the matrix terminals are arranged in a staggered manner, so that the channels that pass through the terminals are passed. There is an effect that the number can be increased and the two-layer structure can be maintained.

[Brief description of drawings]

FIG. 1 is a plan view showing wiring of a route according to an embodiment of the first invention.

FIG. 2 is a sectional view taken along the line AA ′ of FIG.

FIG. 3 is a sectional view taken along line BB ′ of FIG. 1;

FIG. 4 is a plan view showing wiring for guaranteed SN ratio in the embodiment of the first invention.

FIG. 5 is a perspective view of a main part showing details of a twist 5 of a d part in FIG.

FIG. 6 is a plan view of a main portion showing details of a twist 5 of a d portion in FIG.

FIG. 7 is a plan view showing an example of a sequence order inversion method in the embodiment of the first invention.

FIG. 8 is an exploded plan view of FIG.

FIG. 9 is a plan view showing a simple matrix terminal arrangement and a wiring example.

FIG. 10 is a plan view showing a staggered matrix terminal arrangement and a wiring example according to an embodiment of the second invention.

FIG. 11 is an explanatory diagram showing characteristics of wiring of a printed wiring board for connector connection.

[Explanation of symbols]

 1 Printed wiring board 2 Connector part 3 Matrix 4 Pair wire 5 Twist 6 Through hole 7 Terminal pair

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Kokonoki 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (3)

[Claims] 1. A printed wiring board wiring method for connector-connecting a connection between matrices via a printed wiring board, wherein the wiring is a pair line, and the pair line is a pattern between two adjacent upper and lower layers, and the pair A printed wiring board wiring method for connector coupling, characterized in that a wiring group of lines is divided into small groups and routing is performed in small group units. 2. The printed wiring board wiring method according to claim 1, wherein a twist capable of ensuring a required SN ratio is provided between the paired wires in the small group. 3. A matrix terminal wiring method for connector-connecting connections between matrices through a printed wiring board, wherein the matrix terminal arrangement is staggered.