JP2914641B2 - Device mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system configuration for interconnecting devices in an electronic device such as a communication device, so that the devices can be easily connected in accordance with the connection interface conditions. And a device mounting structure.

[0002]

2. Description of the Related Art FIG. 9 shows an example of a conventional device mounting structure.
Conventionally, a backplane 2 'is mounted on a rack 1, which is a functional unit of the device configuration, a cable connector for an interface between devices is mounted on the backplane 2', and a signal processing function and a transmission interface between devices are mounted on the rack 1. Mount the wiring board 3 'with the functions
The plate 3 'was connected to the backplane 2'.
For this reason, according to the transmission interface conditions between devices,
That inter-device connection cable different cable connector interface for either electrical cable 5 or fiber optic 7, electrical cable connector 4, requires the design of the backplane 2 'attached to the optical fiber connector 6 separate rack 1 Had become.

When the transmission interface condition between devices is an electric interface, as shown in FIG. 10, a wiring board 3 'has a structure in which an electric connector 8 for connection to a backplane 2' is mounted. Class 12 is implemented as a basis. In the case of an optical interface,
As shown in FIG. 11, an electric connector 8, an optical connector 9, an optical module 11, an optical fiber 10
Etc. are implemented. As described above, in the conventional device mounting structure, the structures of the wiring board 3 ′ and the back plane 2 ′ are different depending on the transmission interface conditions between the devices, and are individually designed.

[0004]

As described above, in the conventional device mounting structure, if the transmission interface conditions between the devices are electric or optical, and the type of light is different,
An individual equipment rack configuration is required according to the interface conditions between the equipments, and it is necessary to individually design the backplane 2 'mounted on the rack 1 and the wiring board 3' for signal processing and interface. For this reason, there is a problem that a man-hour for design is required for each transmission interface between apparatuses, and the number of types of apparatus mounting structures increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to make it possible to easily perform inter-device connection in accordance with various inter-device transmission interface conditions. An object of the present invention is to provide a device mounting structure capable of reducing the number of racks and the number of backplanes in the device configuration.

[0006]

In order to achieve the above object, in a device mounting structure according to the present invention, a backplane is provided.
The in-device mounting structure for the wiring board and the mounting unit with respect to
Divided mounting units and a signal processing unit inter-device transmission interface signal connector portion, said backplane and signal processing unit in the transmission interface conditions between different devices not
It is characterized in that the inter-device transmission interface signal connector is a mounting unit that connects the devices and that can be replaced according to the inter-device transmission interface conditions.

[0007]

In the device mounting structure of the present invention, the unit of mounting on the backplane in the device mounting structure is divided into a signal processing unit and a transmission interface signal connector unit,
Shall remain unchanged with the backplane and the transmission interface
-The connector for the face signal
Device between transmission by the Installing changing structure in accordance with the interface condition, co-in device between the transmission interface conditions such as the signal processing unit and backplanes be Hen' is immutable
As available in passing, rack type number of design steps and apparatus structure, thereby enabling reduction of the backplane species number.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of an apparatus rack mounting showing the configuration of an embodiment to which the present invention is applied. A backplane 2 is mounted on the rack 1, and a wiring board (hereinafter, sometimes referred to as a signal processing unit) 3 on which an electronic circuit of a signal processing unit is mounted is mounted in the rack 1 from the front. Here, in the present embodiment, the connector unit 1 for inter-device interface signals is used.
3 is separated from the signal processing unit 3 and mounted on the back surface side of the back plane 2. As described below, the inter-device transmission interface signal connector section 13 is prepared according to the interface condition depending on whether the inter-device transmission interface is electric or optical, and is mounted according to the correspondence.

FIG. 2 shows an inter-device transmission interface signal connector 13a when the inter-device transmission interface is electric, and FIG. 3 shows an inter-device transmission interface signal connector 13b when light is used. In each figure, 4 is a connector for an electric cable, 5 is an electric cable for connecting between devices,
6 is an optical fiber connector, 7 is an optical fiber, 11 is an optical module, 12 is an electric device, 13c is a wiring board, 1
Reference numeral 4 denotes a connector for connecting the signal processing unit and the inter-device transmission interface signal connector unit. In any case, the connector for connection to the backplane 2 in FIG. 1 is the electric connector 14, and the cable connector related to the inter-device transmission interface is the electric cable connector 4, or the optical fiber connector 6 is the wiring board 13c. Is mounted on the side opposite to the electrical connector 14.
Since the connector 14 serves as a signal transmission / reception interface with the signal processing unit 3 in FIG. 1, its specifications and the like are defined as common conditions as follows, for example.

In this embodiment, in order to adopt the above-described mounting structure, the configuration as shown in FIGS. 4 and 5 is defined as an interface condition between the signal processing section and the transmission signal interface signal connector section.

FIG. 4 is a block diagram showing conditions on the transmitting side. In the figure, AA ′ is a signal processing unit 3,
Reference numeral 15 denotes a synchronization function unit, 16 denotes data, 17 denotes a clock, 18 denotes a multiplex function unit, 19 denotes a frame, 20 denotes a drive circuit unit, and 21 denotes a transmission signal encoding unit. Show.

In the signal processing unit 3, after synchronizing the data 16 of the processing signal in the device with the clock 17 by the synchronization function unit 15,
The multiplexing unit 18 multiplexes the clock signal 17 based on the clock signal 17 and transmits the multiplexed signal together with the frame signal 19 to the inter-device interface signal connector unit 13 under the interface conditions of the data 16, the clock 17, and the frame 19. In this case, the phase condition between the data 16, the clock 17, and the frame 19 is given by
For example, it is defined as shown in FIG. In this example, the start of the data 16 is two clock cycles 22 after the frame 19 which starts in synchronization with the rise of the clock 17, and the sign of the data is NRZ. The definition of the phase condition depends on the construction of the system. In the embodiment of the present invention, data 1
6, the clock 17, and the interface of the frame 19, and define their phase relations. It also defines the electrical level 23.

[0014] The transmission may be carried out as it is without multiplexing, or may be developed in parallel after multiplexing. If not multiplexed, a frame pulse 19 is created by the synchronization function unit 15 and the data 16 and clock 1
7. The frame 19 defines the mutual phase relationship, code form and electric level, and sends it to the transmission interface signal connector 13. In the case of parallel development after multiplexing, the serial / parallel function unit after multiplexing is incorporated in the multiplexing function unit 18, the data 16 is developed in parallel, and transmitted under the clock 17 and frame 19 interface conditions.

The inter-device transmission interface signal connector 13 receives the clock 17, data 16, and frame 19 signals from the signal processor 3. In this connector section, if the inter-device transmission signal interface is electric, the electric drive circuit 20 outputs the inter-device transmission signal. If the above is an optical interface, the inter-device transmission signal is output by a drive circuit unit 20 such as an optical laser or LED. The transmission interface signal encoding unit 21 is a functional unit that converts the data 16, clock 17, and frame 19 signals received from the signal processing unit 3 into a serial / parallel interface according to interface conditions.

Next, the conditions on the receiving side are shown in the block diagram of FIG. In the figure, BB 'is a boundary between the signal processing unit 3 and the connector unit 13 for transmission interface signals between devices, 24 is a receiving unit, 25 is a synchronizing unit, 26 is data,
7 is a frame, 28 is a clock, 29 is a separation unit, and 30 is a synchronization unit.

As a form of the inter-device transmission interface, there is a serial interface in which clock information is inserted and a parallel interface of data, clock, and frame. In any case, the signal is first received by the receiving unit 24 of the inter-device transmission interface signal connector unit 13. In the case of an optical interface, optical / electrical conversion is performed. In the case of a serial interface, a clock is extracted from a data signal as a signal of an electric system by a synchronization unit 25, and signal processing is performed by synchronizing an interface signal with reference to this clock, and data 26, a clock 28, and a frame 27 are parallelized. A signal is sent to the signal processing unit 3 as an interface. The electrical interface is basically the same as the optical interface, except that there is no optical-electrical converter. In the case of the parallel interface, since data, clocks, and frames are received by the receiving unit 24, the optical interface performs photoelectric conversion and is directly connected to the synchronizing unit 25 by an electric signal. With this configuration, in order to realize mutually compatible conditions, the phase, sign, and electrical level between the clock 28, the data 26, and the frame 27 are defined as shown in FIG.

The signal processing unit 3 develops the data 26 multiplexed by the demultiplexing unit 29 based on the clock 28 and the frame 27, and synchronizes with the synchronizing unit 30 so that the signal processing unit 3 can process the data.

Next, the power receiving and terminal accommodating configuration of this embodiment will be described. In this mounting structure, the inter-device transmission interface signal connector portion 13 is mutually compatible according to the inter-device interface. Therefore, the interface signal connector portion 13 mounts the signal processing portion 3 as shown in FIG. To receive the same power supply voltage 31 from the backplane 2. If the power supply voltage applied to the device mounted on the inter-device transmission interface connector 13 is different from the power supply voltage 31, the on-board power supply 32 is mounted in the inter-device transmission interface connector 13 and the voltage required for device operation is set. Power supply voltage 3
1 is generated.

FIG. 8 shows an example of the housing of an electrical connector terminal applied to the connector section 14 for connecting the signal processing section 3 and the inter-device transmission interface signal connector section 13. Basically, the distribution of the power supply terminal 33, the ground terminal 34, the signal terminal 35, and the signal ground 36, and their accommodation positions are determined. Also, the terminal pitch of the connector to be applied is specified.

The operation of the embodiment configured as described above will be described. In the present embodiment, since the connection conditions between the transmission interface signal connector and the signal processing unit are defined in the device rack configuration, the configuration of the signal processing unit 3 is changed even if the inter-device transmission interface signal conditions are changed. It is not necessary, and the backplane 2 can be shared. In other words, the mounting structure is such that only the transmission interface signal connector 13 is replaced in accordance with the inter-device transmission signal interface conditions. In this respect, different racks, backplanes, signal processing function units and the like are required for each inter-device transmission interface condition. Is significantly different from the conventional mounting structure.
As described above, in the embodiment of the present invention, the inter-device transmission interface signal connector section 13 is compatible with each other regardless of the inter-device transmission interface conditions, and the back plane 2 can be used in common. In the device mounting structure design, the number of design steps can be reduced, and the number of wiring boards, backplanes, and racks to be designed can be significantly reduced.

[0022]

As is apparent from the above description, the device mounting structure of the present invention is a structure in which the inter-device transmission interface connector is replaced by the inter-device transmission interface in the rack structure of the device function unit which is the basis of the device configuration. Therefore, the signal processing unit and the backplane can be shared, and there is an advantage that the number of design steps and structural types of the wiring board and the backplane can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing a mounting structure of an inter-device transmission interface signal connector when an inter-device transmission interface signal used in the above embodiment is electric.

FIG. 3 is a perspective view showing a mounting structure of an inter-device transmission interface signal connector when an inter-device transmission interface signal used in the above embodiment is light.

FIG. 4 is a functional block configuration diagram of a transmission side in the embodiment.

FIG. 5 is a functional block diagram of a receiving side in the embodiment.

FIG. 6 is a time chart showing an example of conditions for defining a connection signal interface between a signal processing unit and a connector unit for a transmission interface signal between apparatuses in the above embodiment.

FIG. 7 is a configuration diagram of power receiving via a backplane in the embodiment.

FIG. 8 is a diagram showing an example of connector terminal accommodation conditions for connecting the signal processing unit and the inter-device transmission interface signal connector unit in the embodiment.

FIG. 9 is a perspective view showing a conventional device mounting structure.

FIG. 10 is a perspective view showing a conventional wiring board mounting structure of a signal processing unit when a transmission interface signal between devices is electric.

FIG. 11 is a perspective view showing a conventional wiring board mounting structure of a signal processing unit when an inter-device transmission interface signal is light.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rack, 2 ... Backplane, 3 ... Wiring board which mounts a signal processing part (signal processing part), 4 ... Connector for electric cable, 5 ... Electric cable for connection between devices, 6 ... Connector for optical fiber, 7 ... Optical Fiber, 11 ... optical module, 12
... Electronic device, 13, 13a, 13b ... Connector for transmission interface signal between devices, 13c ... Wiring plate, 1
4 ... Connector for connecting the signal processing unit and the connector unit for the transmission interface signal between devices, 15 ... Synchronization function unit, 16 ... Data, 17 ... Clock, 18 ... Multifunction unit, 19 ... Frame, 20 ... Drive Circuit section, 21: transmission signal coding section, 22: clock, time difference between data start positions with respect to frame, 23: electric level, 24: receiving section,
25: Synchronizing unit, 26: Data, 27: Frame, 28:
Clock, 29: Separation unit, 30: Synchronization unit, 31: Power system in the backplane, 32: On-board power, 33: Power terminal, 34: Ground terminal, 35: Signal terminal, 36:
Signal ground terminal.

Claims (4)

(57) [Claims] 1. A unit for mounting a wiring board on a backplane
The mounting unit inter-device transmission interface signal connector portion and a signal processing unit and a binary <br/> only, the backplane and the signal processing unit is immutable in transmission interface conditions between different devices in the device mounting structure according to and then, the inter-device transmission interface signal connector portion the apparatus
A device mounting structure that connects between devices and is a mounting unit that can be replaced according to the inter-device transmission interface condition. 2. The apparatus according to claim 1, wherein the connector for the inter-device transmission interface signal is provided with a bus according to the inter-device transmission interface condition.
2. The device mounting structure according to claim 1, wherein the device has a common connection condition that is compatible with the backplane and the signal processing unit . 3. The common connection conditions are as follows: the power supply, the power supply terminal, the signal terminal, the distribution and accommodation position of the signal connector and the signal ground as an interface between the inter-device transmission interface signal connector section and the signal processing section, and the applicable connector. The type, terminal pitch, and the position of the data, clock, and frame signals transmitted and received between the inter-device transmission interface signal connector and the signal processing unit.
3. The device mounting structure according to claim 2 , wherein the phase, code, and electric level are specified. 4. A functional unit relating to a signal processing unit is mounted on a wiring board, and the wiring plate is mounted on a backplane attached to the rack so as to be inserted into the rack from the front side of the rack. device package structure according to any one of between transmission interface signal connector portion to claims 1 to 3, characterized in that it is capable implemented replaced the backplane from the rear side of the backplane.