WO2011020331A1

WO2011020331A1 - Branch cable and device which uses the same

Info

Publication number: WO2011020331A1
Application number: PCT/CN2010/071826
Authority: WO
Inventors: 查卫民; 钟诚; 许巧明
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-08-21
Filing date: 2010-04-16
Publication date: 2011-02-24
Also published as: CN101997184B; CN101997184A; DE212010000117U1

Abstract

A branch cable is disclosed by the present invention, which includes a multiconductor inbound cable, a multiconductor jumper cable and at least two connectors with multiple terminals. Each conductor of the multiconductor inbound cable is used for transmitting one channel of conductor signal, and all the conductor signals constitute a signal set. Each conductor of the multiconductor inbound cable is directly connected to one terminal of the connectors, respectively. The terminals directly connected with the conductors of the multiconductor inbound cable are distributed over at least two connectors. Each terminal directly connected with a conductor of the multiconductor inbound cable is respectively connected to one terminal of other connectors via the multiconductor jumper cable bridged over the connectors, so that each connector can receive all the conductor signals of the signal set, and any terminal of each connector can receive at most one channel of conductor signal. The branch cable provided by the present invention can decrease the difficulty of the connector manufacturing.

Description

Bifurcation cable and device using the same

The present invention relates to the field of communication technologies, and in particular to a bifurcated cable and an apparatus using the same. Background technique

Bifurcation cables are widely used in communication products, and are mainly used for signal multipoint transmission or for device interface backup. Among them, the high-density multi-core fork cable is an important way for communication equipment to realize the backup of El and T1 interface units. FIG. 1 is a schematic diagram of a conventional implementation of E 1 and T 1 interface backup. By means of a forked cable, a group of E1 signals can be simultaneously transmitted to an E1 and T1 interface unit of a device board 108, 109 which are mutually backed up. . Thus, when an interface board, such as the interface board 108, is abnormal, the interface board 108 can be replaced with the backup interface board 109 to process the E1 signal. This method of using the forked cable to implement interface card backup can easily replace the faulty board online. Therefore, it is widely used in communication equipment.

In Fig. 1, the furcation cable includes an access cable 100, a jumper cable 103, a main connector 104, and an auxiliary connector 106. In the figure, the connectors 104, 106 (male plugs) of the bifurcated cable are respectively connected to the connectors 105, 107 (female inserts) on the interface boards 108, 109, the connectors 105, 107 and the respective interface units. 110, 111 are connected such that when the connectors 104, 106 of the furcation cable are connected to the connectors 105, 107 on the interface board, they form a connection with the interface units 110, 111. The access cable 100 includes a plurality of access cores 101, and the jumper cable 103 includes a plurality of jumper cores 102. The connectors 104, 106 of the bifurcated cable are typically wired with a high density D-type connector or a SCSI (Small Computer System Interface) connector. For ease of processing, the cable bifurcation is typically achieved by soldering the access core 101 and the jumper core 102 at the terminals of the main connector 104. Existing bifurcated cable required due to main connector 104 To realize the cable bifurcation, each terminal of the connector needs to be welded to the core wire 101 and the jumper core wire 102 at the same time, so that the main connector 104 needs to be connected with twice the amount of cable, and the cable welding density is a conventional cable. At the same time, since the whole part of the fork is realized on the main connector 104, it is very difficult to process the main connector, and the yield is low. Summary of the invention

In view of this, the present invention provides a furcation cable, which can reduce the processing difficulty of the connector. The present invention also provides an apparatus for applying the above-described bifurcated cable, which also reduces the difficulty in processing the connector.

In order to achieve the above object of the invention, the present invention employs the following technical solutions:

A bifurcated cable comprising a multi-core access cable, a multi-core jumper cable, and at least two connectors having a plurality of terminals, each core wire of the multi-core access cable for transmitting a core signal The core signals of the plurality of core wires form a signal set; the core wires of the multi-core access cables are directly connected to one terminal of the connecting member, and the terminals directly connected to the core wires of the multi-core access cable are distributed at least two Each of the terminals directly connected to the core of the multi-core access cable is connected to each of the other connectors by the multi-core jumper cable spanning between the connectors; All of the core signals of the signal set can be connected to each of the connectors, and the core signals connected to any of the terminals of each connector are at most one.

The connecting member has a plurality of terminals directly connected to the core wire of the multi-core access cable, and the distribution manner is a spaced distribution manner.

Each connector includes a terminal that is directly connected to the core of the multi-core access cable. In each connector of the terminal directly connected to the multi-core access cable core, the number of terminals directly connected to the core of the multi-core access cable is equal to the optimal distribution value or the deviation from the optimal distribution value is 1.

The multi-core access cable includes a plurality of independent sub-cables, each of which is directly connected to a connector. The number of the connectors is two.

The number of the connectors is three.

The connection between the terminal of the connector, the core of the multi-core jumper cable, and the core of the multi-core access cable is soldered.

The connector includes a high density D-type connector or a SCSI connector.

An apparatus comprising the bifurcated cable, and an interface unit of a number equivalent to the connector, the interface unit being correspondingly coupled to the connector.

Compared with the prior art, the beneficial effects of the invention are:

1. The present invention distributes all the core wires at least directly to the two connecting members by distributing the core wires of the access cables, so that for any of the connecting members, the terminals directly connected to the connecting core wires are At most, it is part of all the terminals, which effectively reduces the cable access density of a single connector, thus reducing the difficulty of cable access processing for a single connector.

2. Since the cable access density of the single connector is reduced, the terminal of the connector is not required to be vacant, and the utilization of the connector terminal is ensured to the greatest extent, and the limited outlet space of the wiring panel can be fully utilized, so that the device has Higher integration.

3. The invention does not need to modify the existing access structure, and the traditional idea of connecting the access cable to a single connector is abandoned, and the connection structure is skillfully used in consideration of the characteristics of the device interface backup. The connector connected to the spare interface unit is introduced into the access cable connection such that a part of the core wire of the access cable is connected to the connector connected to the main interface unit, and the other part of the core wire is connected to the standby interface unit. On the connector. For the primary interface unit or the standby interface unit, the signals are partially directly connected from a part of the core wire of the access cable, and some of the core wires of the access cable are indirectly connected through the jumper cable, or all pass through Indirect access to the jumper cable not only ensures signal transmission, but also reduces the cable access density of a single connector. Moreover, in the present invention, in addition to redistributing the core wire access of the access cable, the other parts of the access structure need not be changed, and no new device needs to be added. Therefore, the modification method is simple. The transformation cost is low. DRAWINGS

Figure 1 is a typical application diagram of a multi-core fork cable;

2 is an implementation diagram of a multi-core bifurcation cable according to an embodiment of the present invention;

Figure 3 is a perspective view of a multi-core bifurcated cable according to an embodiment of the present invention;

4 is a diagram showing an application of a multi-core bifurcation cable according to an embodiment of the present invention;

FIG. 5 is another implementation diagram of a multi-core bifurcation cable according to an embodiment of the present invention; FIG.

Fig. 6 is still another implementation diagram of the multi-core bifurcation cable of the embodiment of the present invention. detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Fig. 2, the split cable of the present invention includes a multi-core access cable, a multi-core jumper cable, and a connector having a plurality of terminals. Wherein, the connector is in the form of a connector, and may be, for example, a high density D-type connector or a SCSI connector. In the example of FIG. 2, the connecting member includes the connecting members 202 and 204, that is, the number of the connecting members is two. It should be understood that the number of the connecting members is set according to actual needs, and the number of the examples does not constitute For example, the number of connectors may be three or more, that is, the number of connectors may be two or more.

The multi-core access cable has a plurality of core wires, and each core wire can transmit one core wire signal, and all the core wire signals form a signal set. It should be understood that the signal set described herein is a collection of core signals that are primarily used to describe the relationship between the entirety of a multi-core access cable and the individual cores it contains. Rather than restrictions on signal types, numbers, etc. For example, when a signal A requires a power line, a data line, or a ground line, as it is accessed through the multi-core access cable of this document, the multi-core access cable may include three core wires, each of which is used separately. The transmission power signal, the ground signal, the data signal, the power signal, the ground signal, and the data signal are respectively a core signal. All core signals are composed of one signal set, that is, one signal A. However, if the multi-core access cable With 6 core wires for transmitting two signals A, the signal set at this time includes 2 signals A, that is, the signal set can be used to represent all the core wires of the multi-core access cable.

Each of the core wires of the multi-core access cable is directly connected to one terminal of the connector, and the terminals of the core wires directly connected to the multi-core access cable are distributed over at least two connectors. In the example of FIG. 2, a part of the core wire of the multi-core access cable is directly connected to the connecting member 202, and a part of the core wire is directly connected to the connecting member 204, so that the multi-core access cable can be separated from the physical entity. The two separate sub-cables 200, 206, that is, the core wires directly connected to the connecting member 202 can be bundled into a group by a core outer layer to form a physically independent multi-core access cable 200, which will be The core wires directly connected to the connector 204 are bundled in a bundle using a core outer layer to form a physically independent multi-core access cable 206. From the signal point of view, the multi-core access cables 200 and 206 are only connected to a part of the core signal of the aforementioned signal set. Therefore, the multi-core access cables 200 and 206 are connected to all the core signals of the signal set. A sub-cable in a multi-core access cable. For the sake of brevity, in the following, a multi-core access core wire directly connected to a connector is understood to be a so-called sub-cable here, which will not be further described later.

A multi-core jumper cable 203 is bridged between the two connectors 202, 204. Each of the terminals directly connected to the core of the multi-core access cable may be connected to each of the other connectors by a multi-core jumper cable 203 spanning between the connectors, so that each connector is connected All of the core signals of the signal set can be accessed, and the core signal connected to any of the terminals of each connector is at most one. As shown in FIG. 2, a core 201 of the multi-core access cable 200 is directly connected to the terminal 207 of the connector 202, and the terminal 207 is connected through a core 211 of the multi-core jumper cable 203. The terminal 210 of the connector 204, such that the core signal 201 directly connected to the terminal 207, is indirectly connected to the terminal 210. On the other hand, a core wire 205 of the multi-core access cable 206 is directly connected to the terminal 208 of the connector 204, and the terminal 208 is connected to the connector by a core wire 212 of the multi-core jumper cable 203. The core signal 205, which is directly connected to the terminal 208 on the terminal 209, is indirectly connected to the terminal 209. That is Said that the multi-core jumper cable 203 in the interconnection between the two connectors, need to ensure that the connector on the connector directly connected to the core of the multi-core access cable, can be connected to the terminals of other connectors And can only be connected to terminals on other connectors that are not directly connected to the core of the multi-core access cable.

As shown in FIG. 3, it shows the physical shape of the furcation cable in one example of the present invention, which includes connectors 301, 305, multi-core access cables 302, 304, and multi-core jumper cables 305. When the core of the access cable and the jumper cable are soldered to the terminal of the connector, the connector housing is secured to the connector by a process such as injection molding.

As shown in Fig. 4, there is shown a branch cable application diagram of an apparatus to which a split cable of the present invention is applied. The core wire 401 of the multi-core access cable 400 is connected to the connector 406; the core wire 405 of the multi-core access cable 404 is connected to the connector 407, and the connectors 406, 407 are interconnected by the multi-core jumper cable 403. The connector 406 is connected to the connector plug 408 of the interface board 410, and the plug 408 is connected to the El, T1 interface unit 412. The connector 407 is connected to the connector plug 409 of the interface board 411, and the plug 409 is connected to the El, T1. Interface unit 413. Therefore, the two interface boards are backed up each other, and each interface board directly accesses part of the core line signal of the signal set, and another part of the core line signal in the signal set is indirectly accessed through another interface board.

In the case of more than two connectors, as shown in FIG. 5, a split cable includes three connectors 501, 502, 503, and a multi-core jumper cable 504 is bridged between the connectors 501, 502. The multi-core jumper cable 505 is bridged between the connectors 502, 503. The multi-core access cable 506 is directly connected to the connector 501, the multi-core access cable 507 is directly connected to the connector 502, and the multi-core access cable 508 is directly connected to the connector 503, that is, each connector has a direct connection multi-core access The terminal of the core of the cable. As shown in Fig. 6, the core of the multi-core access cable is directly connected to the connectors of the connectors 501 and 502, and the connector 503 does not have a terminal for directly connecting the multi-core access cable core. Each connector has a connection method for directly connecting the terminals of the core of the multi-core access cable, which can make full use of the connector resources and minimize the number of access cores on a single connector. Low processing difficulty for a single connector.

A connector, if there are multiple terminals directly connected to the multi-core access cable core, the physical distribution of these terminals on the connector is preferably distributed as far as possible, so-called as far as possible, as long as It is possible to distribute the distribution of intervals. For example, in FIG. 5, both connectors 501 and 502 have two terminals directly connected to the multi-core access cable core. Since the connectors 501 and 502 both have five terminals, the multi-core connection is connected. When entering the cable core, you can separate the terminals of the two directly connected multi-core access cable cores. However, in the example of FIG. 6, the connector 602 has four terminals directly connected to the multi-core access cable core, and the total number of terminals is only five, so it is impossible to connect these directly connected multi-cores. The terminals of the cable core are spaced apart.尽可能 Use as far as possible to distribute the access cores on one connector as much as possible without being densely populated in one area of the connector, thus reducing the difficulty of processing a single connector.

As shown in Figure 5, in each connector with a terminal directly connected to the multi-core access cable core, the number of terminals directly connected to the core of the multi-core access cable can be set equal to the optimum. The distribution value or the deviation from the optimal distribution value is 1, and the optimal distribution value is the rounding of the total number of cores of the multi-core access cable divided by the number of connectors. In the example of Figure 5, the total number of cores of the multi-core access cable is 5, the number of connectors is 3, 5 is divided by 3, and the quotient of the quotient is 1, that is, the optimal distribution value is 1, therefore, 3 The number of terminals connected directly to the connector is distributed using 1, 2, and 2. In other words, the core of the multi-core access cable is evenly distributed to each connector.设置Use the setting method equal to the optimal distribution value or the deviation from the optimal distribution value to 1 to distribute the access core to each connector as much as possible without being densely connected to one connector, thereby reducing the single connection. The processing difficulty of the plug-in wiring.

The invention discards the conventional idea of connecting the core wire of the multi-core access cable to one connecting member, and according to the characteristics of the device backup, distributes the core wire of the multi-core access cable to at least two connecting members, thereby Ensure that all connectors have all access signals, and that a single connector The number of cable cores in the body package is reduced, which greatly reduces the welding process and the difficulty of injection molding of the connector.

The furcation cable of the present invention can be used for wireless products, exchange products, data products, access products, transmission products, and the like. However, this is only an example for ease of understanding, and the specific implementation of the present invention should not be construed as being limited to the description. It is to be understood by those skilled in the art that various changes and substitutions may be made without departing from the spirit and scope of the invention.

Claims

Claim

A split cable comprising a multi-core access cable, a multi-core jumper cable, and at least two connectors having a plurality of terminals, each core of the multi-core access cable being used to transmit a core The line signal, the whole core line signal constitutes a signal set; wherein the core wires of the multi-core access cable are directly connected to one terminal of the connecting member, and directly connected to the core wire of the multi-core access cable The terminals are distributed on at least two connecting members, and each of the terminals directly connected to the core of the multi-core access cable is connected to each of the other connecting members by the multi-core jumper cable spanning between the connecting members a terminal; enabling access to all core signals of the signal set on each connector, and at most one of the core signals connected to any of the terminals of each connector.

The bifurcated cable according to claim 1, wherein the connecting member has a plurality of terminals directly connected to the core of the multi-core access cable, and the distribution manner is an interval distribution manner.

3. A furcation cable according to claim 2, wherein each of the connectors comprises a terminal directly connected to the core of the multi-core access cable.

4. The furcation cable according to claim 3, wherein in the respective connecting members directly connecting the terminals of the multi-core access cable core, the connecting member is directly connected to the core of the multi-core access cable The number of ends is equal to the optimal distribution value or the deviation from the optimal distribution value is 1.

5. The furcation cable of claim 4, wherein the multi-core access cable comprises a plurality of separate sub-cables, each sub-cable being directly connected to a connector.

The furcation cable according to any one of claims 1 to 5, characterized in that the number of the connectors is two.

The furcation cable according to any one of claims 1 to 5, wherein the number of the connectors is three.

The furcation cable according to any one of claims 1 to 5, wherein a terminal of the connecting member, a core wire of the multi-core jumper cable, and the multi-core Access cable The connection between the core wires is soldering.

9. The furcation cable of claim 8, wherein the connector comprises a high density D-type connector or a SCSI connector.

An apparatus comprising a furcation cable according to any one of claims 1 to 5, and an interface unit corresponding to the number of the connectors, the interface unit being correspondingly connected to the connector.