JPH08111669A - Optical wiring device - Google Patents

Abstract

PURPOSE: To prevent an optical signal from being erroneously outputted in space by stopping the output of the optical signal when the optical connection of an optical fiber cable is not rightly performed. CONSTITUTION: A reed line 10 is arranged on an optical fiber cable 300 performing an optical connection of an optical transmission side electronic circuit unit 100 and an optical reception side electronic circuit 200. The unit 100 is provided with a potential discrimination circuit 40 switching and controlling the stoppage of the output/transmission of the optical signals of optical transmitters 111 to 11N according to the presence or absence of the detection of GND potential. When the optical connection between the both units 1 00 and 200 is rightly performed by this cable 300, the potential discrimination circuit 40 on the side of the unit 100 is made to be connected with the GND line on the side of the unit 200 through the reed line 10. When the optical connection is not performed or when an erroneous optical connection is performed, the potential discrimination circuit 40 becomes no detection of GND potential and optical transmitters 111 to 11N are controlled to be optical signal transmission stoppage states.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical wiring device for connecting a plurality of electronic circuit units by using an optical fiber array connector.

[0002]

2. Description of the Related Art Recently, in the field of digital communication or conversion, the speed of transmission and processing has been increased, and the speed of signal transmission between electronic circuit units has been increased, resulting in ECL.
Electronic circuits such as (Emitter Couple Logic) are no longer catching up. For this reason, there is an increasing movement to connect the inside and between the devices by optical fiber communication. Moreover, the optical fiber communication is about to take a wiring form for exchanging a plurality of parallel signals instead of serial, and parts for that purpose are being put to practical use.

FIG. 7 shows a conventional example of an optical wiring device for transmitting this optical parallel signal. This optical wiring device includes an optical transmission side electronic circuit unit 105, an optical reception side electronic circuit unit 205, and an optical fiber cable 304.

The optical transmission side electronic circuit unit 105 outputs an optical signal from the optical connector 135, and the optical reception side electronic circuit unit 205 inputs an optical signal from the optical connector 235.
The optical fiber cable 304 includes a plurality of optical fibers 321 to
A cable in which 32N is bundled into a ribbon, optical connectors 315 and 335 are provided at both ends, one end is optically connected to the optical connector 135 on the optical transmission side electronic circuit unit 105 side, and the other end is on the optical reception side electronic circuit unit 205 side. Optical connector 2
Optically connected to 35.

With such a configuration, the optical output signals from the optical transmitters (OS) 111 to 11N on the optical transmission side electronic circuit unit 105 are respectively received by the optical reception side electronic circuit unit 20.
5 will be transmitted to the optical receivers (OR) 211 to 21N.

By using this device, it becomes possible to send a much higher speed signal over a longer distance than the conventional method of transmitting an electric signal. Further, it is an extremely excellent inter-unit connection device that is not affected by noise due to electromagnetic induction during transmission and does not give noise to other cables.

However, under the present circumstances, from the optical transmitters 111 to 11N on the optical transmission side electronic circuit unit 105 to the optical fiber 12
Output from 1 to 12 N, and this is a collective connection type optical connector 1
The circuit size is large because it is connected to the 35 by splicing etc. and the receiving side is also the same, but a semiconductor laser array that can be directly connected to the fiber ribbon on the transmitting side and a PD array on the receiving side have been developed. It is being implemented and is likely to be put to practical use in the near future. The feasibility is shown, for example, in IEICE Technical Report OQE932142 (1993-12) of the Institute of Electronics, Information and Communication Engineers.

However, in the optical connection configuration in the conventional optical wiring device as described above, there is a possibility that the optical output may leak into the space even when the optical connector 315 is not connected from the optical connector 135 on the transmitting side, for example. There is a safety issue.

In order to solve this problem, conventionally, a sticker is attached near the optical connector to prevent the operator from paying attention to the optical output of the optical connector.
We deal with secondary measures such as devising a protective cover on the optical connector part so as to block the light, and there are many aspects that rely on the attention of the operator, and sufficient safety measures have not been taken. .

Further, since it is possible to connect between any units as long as the connectors are the same, there is a risk that the units which should not be connected are connected and an erroneous optical signal is transmitted.

[0011]

In the conventional device, there is a possibility that the optical output leaks from the optical connector into the space even when the normal connection is not made, which may endanger the optical wiring worker. By using standardized connectors,
There is also a problem that an incorrect optical signal is transmitted by connecting to an electronic circuit unit that should not be connected.

The present invention has been made to solve the above-mentioned problems, and when the normal optical connection is not made, the output of the optical signal is stopped so that the optical signal is not output to the space by mistake and is safe enough. A first object is to provide a wiring device, and a second object is to provide an optical wiring device in which output of an optical signal is stopped when a unit is erroneously wired and an erroneous optical signal is not transmitted.

[0013]

In order to achieve the first object, the optical wiring device according to the present invention is mounted on an optical signal transmitting section mounted on an electronic circuit unit and another electronic circuit unit. In an optical wiring device for optically connecting an optical signal receiving section with an optical fiber cable, an electrical connecting means for electrically connecting electronic circuit units through the optical fiber cable when the optical fiber cable is optically connected, and an electrical connection by this means. Optical connection identification means for identifying whether the optical connection is correct or not by detecting the presence or absence of connection, and the optical signal output of the optical signal transmission part is controlled according to the identification result of the optical connection identification means on the mounted unit side of the optical signal transmission part. And a light output control means for controlling.

In order to achieve the second object, the optical wiring device according to the present invention is the optical wiring device described above, and the optical connection identifying means is provided for each optical signal receiving section mounting unit. The configuration is such that the method of detecting electrical connection is different.

[0015]

In the optical wiring device having the above structure, the electronic circuit units are electrically connected by the electrical connection means when the optical fiber cable is optically connected, and the electrical connection means electrically connects the electrical connection means. It is determined whether or not the optical signal transmitting unit mounting unit and the optical signal receiving unit mounting unit are normally optically connected by detecting, and when it is determined that the optical connection identifying unit is normal through the optical output control unit, The optical signal transmission unit is set to the transmission state, and when it is determined to be abnormal, the optical signal output is stopped.

Further, the detection of the electrical connection is made different for each unit mounted with the optical signal receiving section so that the electrical connection is not detected when the unit is erroneously wired, whereby the optical signal is not output and the erroneous optical signal is not output. It prevents the transmission of signals.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment according to the present invention will be described with reference to FIG. However, in FIG. 1, the same parts as those of FIG. 7 showing the configuration of the conventional optical wiring device are denoted by the same reference numerals, and the different parts will be mainly described here.

FIG. 1 shows a configuration of an optical wiring device according to the present invention. An optical transmission side electronic circuit unit 100, an optical reception side electronic circuit unit 200, and an optical fiber cable 3 are provided.
00, and by optically connecting the optical transmission side electronic circuit unit 100 and the optical reception side electronic circuit unit 200 with the optical fiber cable 300 as in the conventional example, the optical transmitters 111 to 11N and the optical transmitters 111 to 11N are connected. Optical signals are transmitted between the receivers 211 to 21N.

The potential discriminating circuit 40 provided in the optical transmitting side electronic circuit unit 100 outputs a control signal to each of the optical transmitters 111 to 11N through the control line 50, and receives an input from the optical connector 131. Electric conductor line 3
Connected to 0. The optical transmitters 111 to 11N output / stop an optical signal depending on whether a control signal is input or not.

One end of the electric conductor line 20 provided in the optical receiving side electronic circuit unit 200 is wired to GND in the optical receiving side electronic circuit unit 200, and the other end is connected to the optical connector 231 to set the GND potential. It can be taken out of the light receiving side electronic circuit unit 200.

The lead wire 10 made of an electric conductor line provided in the optical fiber cable 300 is connected to the optical connector 31.
1 and the optical connector 331 are connected, and when the optical signal connection is made between the optical transmission side electronic circuit unit 100 and the optical reception side electronic circuit unit 200 by the optical fiber cable 300, the line 20 and the line 30 are connected. It is to be electrically connected.

The operation of the above configuration will be described below. When the optical transmission side electronic circuit unit 100 and the optical reception side electronic circuit unit 200 are correctly optically connected by the optical fiber cable 300, the GND potential on the optical reception side electronic circuit unit 200 is the line 20 and the lead wire 10. ,
It is input to the potential discriminating circuit 40 via the line 30. The potential discriminating circuit 40 receives the GND potential,
A control signal for outputting an optical signal to the optical transmitters 111 to 11N is output via the control line 50.

On the other hand, when the optical connection by the optical fiber cable 300 is not mistaken or the wiring itself is not made, the potential discriminating circuit 40 does not input the GND potential. Therefore, since the control signal is not output to the optical transmitters 111 to 11N, the optical signal is not output.

Therefore, according to the optical wiring device having the above configuration, it is possible to determine whether or not the normal connection is made, and thereby it is possible to control whether or not to output the optical signal. That is, if the optical connection by the optical fiber cable 300 is not erroneously performed or the wiring itself is not performed, the optical signal is not output, and the optical signal never goes out into the space. Therefore, there is a safety problem such as an optical hazard. Will be resolved.

The present invention is not limited to the above embodiment. In the above description, the line 20 is connected to GND, but if it is on a circuit of known potential in the optical circuit unit 200 on the light receiving side, the potential discriminating circuit 40 may be set to detect the potential. Can be implemented in
Also, if this potential is set according to the type of electronic circuit on the receiving side, it is possible to determine the optical circuit unit on the optical receiving side that is the transmission target, and it is possible to prevent erroneous optical signal transmission due to erroneous wiring. Becomes

Next, referring to FIG. 2, the second embodiment of the present invention will be described.
An example will be described. However, in FIG. 2, the same parts as those of FIG. 7 and FIG. 1 showing the configuration of the conventional optical wiring device are denoted by the same reference numerals, and the different parts will be mainly described here.

FIG. 2 shows the configuration of an optical wiring device according to the present invention, which is composed of an optical transmission side electronic circuit unit 101, an optical reception side electronic circuit unit 201, and an optical fiber cable 300. Similarly, by optically connecting 7 between the optical transmission side electronic circuit unit 101 and the optical reception side electronic circuit unit 201 by the optical fiber cable 300, the optical transmitters 111 to 11N and the optical receivers 211 to 21N.
Each optical signal is transmitted between them.

The identification circuit 41 provided in the electronic circuit unit 101 on the optical transmission side outputs a control signal to each of the optical transmitters 111 to 11N via the control line 50, and is also input from the optical connector 131. It is connected to the line 30.

The identification signal output circuit 21 provided in the optical receiving side electronic circuit unit 201 generates, for example, a specific frequency signal as an identification signal. This identification signal is sent from the optical connector 231 via the line 20. It is output to the outside of the light receiving side electronic circuit unit 201.

The lead wire 10 provided in the optical fiber cable 300 includes an optical connector 311 and an optical connector 331.
When the optical signal connection is made between the optical transmission side electronic circuit unit 101 and the optical reception side electronic circuit unit 201 by the optical fiber cable 300, the line 20 and the line 30 are electrically connected. It is a thing.

The operation of the above structure will be described below. When the optical transmission side electronic circuit unit 101 and the optical reception side electronic circuit unit 201 are correctly optically connected by the optical fiber cable 300, the identification signal output from the identification signal output circuit 21 is the line 20 and the lead wire 10. , And is input to the identification circuit 41 via the line 30. The identification circuit 41 outputs a control signal that causes the optical transmitters 111 to 11N to output an optical signal via the control line 50 when the identification signal is input.

On the other hand, if erroneous optical connection by the optical fiber cable 300 or wiring itself is not performed, the identification circuit 41 does not input the identification signal. Therefore, the control signal is not output to the optical transmitters 111 to 11N. Therefore, no optical signal is output.

Therefore, according to the optical wiring device having the above-described configuration, it is possible to determine whether or not the normal connection is made, as in the first embodiment, and whether or not the optical signal is output by this. Can be controlled.

The present invention is not limited to the above embodiment. For example, if the frequency of the identification signal output by the identification signal output circuit 21 is set to a different value for each optical receiving side electronic circuit unit, it becomes possible to determine the optical receiving side electronic circuit unit to be transmitted, and it is possible to avoid miswiring. It also becomes possible to prevent erroneous optical signal transmission.

Next, referring to FIG. 3, the third embodiment of the present invention will be described.
An example will be described. However, in FIG. 3, the same parts as those in FIG. 7 showing the configuration of the conventional optical wiring device are designated by the same reference numerals, and the different parts will be mainly described here.

FIG. 3 shows a configuration of an optical wiring device according to the present invention, which is composed of an optical transmission side electronic circuit unit 102, an optical reception side electronic circuit unit 202, and an optical fiber cable 301. Similarly, by optically connecting the optical transmission side electronic circuit unit 102 and the optical reception side electronic circuit unit 202 with the optical fiber cable 301,
Each optical signal is transmitted between the optical transmitters 111 to 11N and the optical receivers 211 to 21N.

The open / short determination circuit 42 provided in the optical transmission side electronic circuit unit 102 is provided in the optical transmitter 1
A control signal is output to each of 11 to 11N via the control line 50, and the optical connector 132 is connected to the electric conductor lines 31 and 32 for input / output.

The electrical conductor line 22 provided in the optical receiving side electronic circuit unit 202 has an optical connector 23 at both ends.
2 and are connected to the lead wires 11 and 12 by the electric conductor of the optical connector 332.

The lead wires 11 and 12 provided in the optical fiber cable 301 connect the optical connector 312 and the optical connector 332 together, and connect between the optical transmission side electronic circuit unit 102 and the optical reception side electronic circuit unit 202. When optical signals are connected by the optical fiber cable 301, the lines 31 and 32 are electrically connected to both ends of the line 22, respectively.

The operation of the above configuration will be described below. When the optical transmission side electronic circuit unit 102 and the optical reception side electronic circuit unit 202 are correctly optically connected by the optical fiber cable 301, the open / short determination circuit 42 causes the line 31 and the line 32 to be in a short-circuited state. It is detected that the optical transmitters 111 to 111 are connected via the control line 50.
A control signal that causes the 11N to output an optical signal is output.

On the other hand, when erroneous optical connection by the optical fiber cable 301 or the wiring itself is not performed, the open / short determination circuit 42 does not short-circuit the line 31 and the line 32, so that the optical transmission is performed. Bowl 111-
No control signal is output to 11N. Therefore, no optical signal is output.

Therefore, according to the optical wiring device having the above-described configuration, it is possible to determine whether or not the normal connection is made, as in the above-described embodiment, and whether or not to output the optical signal is thereby determined. It becomes possible to control.

Next, referring to FIG. 4, a fourth embodiment according to the present invention will be described.
An example will be described. However, in FIG. 4, the same parts as those of FIG. 7 and FIG. 3 showing the configuration of the conventional optical wiring device are designated by the same reference numerals, and different parts will be mainly described here.

FIG. 4 shows the configuration of an optical wiring device according to the present invention, which is composed of an optical transmission side electronic circuit unit 103, an optical reception side electronic circuit unit 203, and an optical fiber cable 301. Similarly, by optically connecting the optical transmission side electronic circuit unit 103 and the optical reception side electronic circuit unit 203 with the optical fiber cable 301,
Each optical signal is transmitted between the optical transmitters 111 to 11N and the optical receivers 211 to 21N.

The resistance value identification circuit 43 provided in the optical transmission side electronic circuit unit 103 includes the optical transmitters 111 to 11N.
A control signal is output to each of the lines via the control line 50, and the lines are connected to the lines 31 and 32 for input / output from the optical connector 132.

The resistor 24 provided in the optical receiving side electronic circuit unit 203 has one end connected to the optical connector 232 via the electric conductor line 23 and the other end connected to the optical connector 232 via the electric conductor line 25. Connected.

The lead wires 11 and 12 provided in the optical fiber cable 301 connect between the optical connector 312 and the optical connector 332, and connect between the optical transmitting side electronic circuit unit 103 and the optical receiving side electronic circuit unit 203. When optical signals are connected by the optical fiber cable 301, the line 31 is electrically connected to the line 23, and the line 32 is electrically connected to the line 25.

The operation of the above configuration will be described below. When the optical transmission side electronic circuit unit 103 and the optical reception side electronic circuit unit 203 are properly optically connected by the optical fiber cable 301, the resistance value identifying circuit 43
It is detected that the resistance value between the connected lines 31 and 32 is the preset resistance value of the resistor 24, and an optical signal is sent to the optical transmitters 111 to 11N via the control line 50. The control signal to be output is output.

On the other hand, when erroneous optical connection by the optical fiber cable 301 or the wiring itself is not performed, the resistance value identifying circuit 43 presets the resistance value between the line 31 and the line 32. Since it is not the resistance value of the resistor 24, the control signal is not output to the optical transmitters 111 to 11N. Therefore, no optical signal is output.

Therefore, according to the optical wiring device having the above configuration, it is possible to determine whether or not the normal connection is made, as in the above-described embodiment, and whether or not to output the optical signal is thereby determined. It becomes possible to control.

The present invention is not limited to the above embodiment. For example, if the resistance value of the resistor 24 is set to a different value for each light receiving side electronic circuit unit, it becomes possible to determine the light receiving side electronic circuit unit to be transmitted,
It is also possible to prevent erroneous optical signal transmission due to erroneous wiring.

Next, referring to FIG. 5, the fifth embodiment of the present invention will be described.
An example will be described. However, in FIG. 5, the same parts as those of FIG. 7 showing the configuration of the conventional optical wiring device are denoted by the same reference numerals, and the different parts will be mainly described here.

FIG. 5 shows a structure of an optical wiring device according to the present invention, which is composed of an optical transmission side electronic circuit unit 104, an optical reception side electronic circuit unit 204, and an optical fiber cable 302. Similarly, by optically connecting the optical transmission side electronic circuit unit 104 and the optical reception side electronic circuit unit 204 with the optical fiber cable 302,
Each optical signal is transmitted between the optical transmitters 111 to 11N and the optical receivers 211 to 21N.

The pattern determination circuit 44 provided in the optical transmission side electronic circuit unit 104 includes the optical transmitters 111 to 11
A control signal is output to each of N via the control line 50,
In addition, it is connected to the electrical conductor line group 33 which inputs and outputs from the optical connector 133. The line group 33 is a bundle of a plurality of electrically conductive lines that are electrically independent of each other.

The electric conductor line group 26 provided in the light receiving side electronic circuit unit 204 is a bundle of the same number of electrically independent electric conductor lines as the line group 33. One end of the line group 26 is connected to the optical connector 233, and the other end is connected to the pattern generation unit 27. The pattern generator 27 creates an electrical pattern between the lines of the line group 26, which shows a short circuit / open relationship by a changeover switch or the like.

The lead wire group 13 of electric conductors provided in the optical fiber cable 302 is a bundle of the same number of electrically independent electric conductor lines as the line group 33 and the line group 26. This lead wire group 13 is used for the optical connector 3
The optical transmission side electronic circuit unit 104 and the optical reception side electronic circuit unit 20 are provided to connect the optical transmission side electronic circuit unit 104 and the optical connector 333.
When an optical signal connection is made between 4 and 4 by an optical fiber cable 302, the line group 26 and the line group 33 are electrically connected.

The operation of the above structure will be described below. When the optical transmission side electronic circuit unit 104 and the optical reception side electronic circuit unit 204 are correctly optically connected by the optical fiber cable 302, the pattern output output from the pattern generation unit 27 is the line group 26 and the lead wire group. 1
3 and the line group 33 are input to the pattern determination circuit 44. The pattern determination circuit 44, via the control line 50, outputs the optical transmitters 111 to 1 only when it detects that the pattern output matches the preset pattern.
A control signal that causes the 1N to output an optical signal is output.

On the other hand, if the optical connection by the optical fiber cable 301 is not erroneous or the wiring itself is not made, the pattern judgment circuit 44 does not input the preset pattern, so that the optical transmitters 111 to 11N receive the pattern. No control signal is output. Therefore, no optical signal is output.

Therefore, according to the optical wiring device having the above-described configuration, it is possible to determine whether or not the normal connection is made, as in the above-described embodiment, and whether or not the optical signal is output is thereby determined. It becomes possible to control.

The present invention is not limited to the above embodiment. In the above, the pattern generation unit 27 generates a short circuit / open relationship between the electric conductor lines forming the connected line group 26 by a changeover switch or the like, and uses the pattern as a material for determining the correct connection. In the case where the side electronic circuit unit 104 and the light receiving side electronic circuit unit 204 have a common potential, the same operation can be performed by using a combination of each line with or without this potential as a pattern. It is possible.

Further, if the pattern generated by the pattern generating section 27 is set to a different pattern for each optical receiving side electronic circuit unit, it becomes possible to determine the optical receiving side electronic circuit unit to be transmitted, and erroneous wiring may result. It is also possible to prevent the transmission of an optical signal.

Next, referring to FIG. 6, a sixth embodiment according to the present invention will be described.
An example will be described. FIG. 6 illustrates the electrical connection between the optical connectors of the optical wiring device in that case, using the method for determining the optical connection state of the third embodiment as an example.

The female guide pins 34 and 35 made of a conductive material are provided in the optical connector 134 on the transmission side, and the lines 31 and 32 are connected thereto. Similarly, the female guide pins 28 and 29 made of a conductive material are used.
Are provided in the optical connector 234 on the receiving side, and are connected to both ends of the line 22, respectively.

The lines 11 and 12 provided in the optical fiber cable 303 connect between the optical connector 314 and the optical connector 334, respectively, and male pins 14, 16 and 15, 17 for guide are provided at both ends thereof. It is connected. The guide male pin and the guide female pin are respectively provided at both ends of the optical connector, and the guide male pin and the guide female pin are engaged with each other to align the optical fiber ends and to electrically connect them. Is done.

The operation and effect of the above structure will be described. When the optical signal is connected between the optical transmission side electronic circuit unit 102 and the optical reception side electronic circuit unit 202 by the optical fiber cable 303, the lines 31 and 32 are electrically connected to both ends of the line 22, respectively. Has become.

This electrical connection is the same as the male pin 1 for guiding when connecting the optical connector 314 and the optical connector 134.
4 and 15 are female pins 34 and 35 for guiding, respectively.
To the optical connector 334 and the optical connector 23.
4 is connected with male pins 16 and 17 for guiding.
Are respectively fitted into the female guide pins 28 and 29.

Therefore, according to the optical wiring device having the electrical connecting means having the above-described structure, the guide pin, which originally secures the connection of the optical connector, is used for the connection between the line and the lead wire. Also, it is not necessary to additionally provide an input / output terminal for connecting between the lead wires, and it is possible to avoid an increase in the size of the optical connector due to the provision of the terminal.

The present invention is not limited to the above embodiment. In the above description, this electrical connection method is applied to the third embodiment and explained, but it goes without saying that it can be applied to other embodiments. Needless to say, the present invention can be similarly implemented even if various modifications are made without departing from the scope of the present invention.

[0069]

As described above, according to the present invention, it is possible to provide a sufficiently safe optical wiring device in which the output of an optical signal is stopped when the normal optical connection is not made, and the optical signal is not accidentally output in the space. It is possible to provide an optical wiring device that stops the output of an optical signal when a unit is erroneously wired and does not transmit an erroneous optical signal.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an optical wiring device of a first embodiment according to the present invention.

FIG. 2 is a diagram showing a configuration of an optical wiring device according to a second embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of an optical wiring device according to a third embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of an optical wiring device of a fourth embodiment according to the present invention.

FIG. 5 is a diagram showing the configuration of an optical wiring device according to a fifth embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of an optical wiring device of a sixth embodiment according to the present invention.

FIG. 7 is a diagram showing a configuration of a conventional optical wiring device.

[Explanation of symbols]

100-105 ... Optical transmission side electronic circuit unit, 200-
205 ... Optical receiving side electronic circuit unit, 300 to 303 ...
Optical fiber cable, 111 to 11N ... Optical transmitter (O
S), 211 to 21N ... Optical receiver (OR), 121 to 1
2N, 221-22N, 321-32N ... Optical fiber,
131-135, 231-235, 311-315, 3
31-335 ... Optical connector, 10-12 ... Lead wire, 2
0, 22, 23, 25, 30 to 32 ... Electrical conductor line,
26, 33 ... Electrical conductor line group, 13 ... Lead wire group, 1
4 to 17 ... Male pin for guide, 28, 29, 34, 35 ...
Female pin for guide, 21 ... Identification signal output circuit, 24 ... Resistor, 27 ... Pattern generation unit, 40 ... Potential identification circuit, 41
... Identification circuit, 42 ... Open / short circuit, 43
... resistance value identification circuit, 44 ... pattern determination circuit, 50 ... control line.

Claims (12)

[Claims] 1. An optical wiring device for optically connecting an optical signal transmitting section mounted on an electronic circuit unit and an optical signal receiving section mounted on another electronic circuit unit with an optical fiber cable. Electrical connection means for electrically connecting the electronic circuit units through the optical fiber cable at the time of connection, and an optical connection identification means for identifying whether the optical connection is correct by detecting the presence or absence of the electrical connection by the means. An optical wiring device comprising: an optical output control unit that controls an optical signal output of the optical signal transmission unit on the mounting unit side of the optical signal transmission unit according to an identification result of the optical connection identification unit. . 2. The optical wiring device according to claim 1, wherein the optical connection identifying means is configured to detect electrical connection differently for each optical signal receiving unit mounting unit. 3. The lead wire is arranged on the optical fiber cable by the electrical connecting means, and the lead wire is arranged by the optical connection identifying means during normal optical connection with the optical signal receiving section of the optical fiber cable. Is connected to the reference potential line of the optical signal receiving section mounting unit, and detects whether the potential of the lead wire has reached the reference potential during optical connection with the optical signal transmitting section of the optical fiber cable. The optical interconnection device according to claim 1, wherein the correctness of the optical connection is identified by doing so. 4. The optical wiring device according to claim 3, wherein the optical connection identification means is configured so that the reference potential is different for each optical signal receiving section mounting unit. 5. The electrical connection means arranges a lead wire in the optical fiber cable, and the optical connection identification means is provided with an identification signal generation circuit in the optical signal receiving section mounting unit, The lead wire is connected to the output end of the identification signal generating circuit during normal optical connection with the optical signal receiving section,
The correctness of the optical connection is discriminated by detecting the presence or absence of an identification signal from the lead wire at the time of optical connection with the optical signal transmission unit of the optical fiber cable. Optical wiring device. 6. The optical wiring device according to claim 5, wherein the identification signal generating circuit is configured to generate a different identification signal for each optical signal receiving section mounting unit. 7. The electrical connection means arranges a pair of lead wires in the optical fiber cable, and the optical connection identification means is configured to perform the normal optical connection with the optical signal receiving section of the optical fiber cable. The pair of lead wires are short-circuited on the optical signal receiving unit mounting unit, and the optical connection is made by detecting short-circuiting / opening of the lead wires during optical connection with the optical signal transmitting unit of the optical fiber cable. 2. The optical wiring device according to claim 1, wherein the correctness is identified. 8. The electrical connection means arranges a pair of lead wires in the optical fiber cable, and the optical connection identification means is provided with an impedance element having a value unique to the optical signal receiving section mounting unit, The pair of lead wires are connected to the impedance element during normal optical connection with the optical signal receiving section of the optical fiber cable, and the leads are provided during optical connection with the optical signal transmitting section of the optical fiber cable. 2. The optical interconnection device according to claim 1, wherein whether the optical connection is correct or not is identified by detecting whether or not the impedance of the line has a unique value. 9. The optical wiring device according to claim 8, wherein the impedance element has a different impedance value for each optical signal receiving section mounting unit. 10. The electrical connection means arranges a plurality of lead wires on the optical fiber cable, and the optical connection identification means sets a signal specific to each of the plurality of lead wires on the optical signal receiver mounting unit. Is provided, the plurality of lead wires are connected to each output end of the identification pattern generating circuit at the time of normal optical connection with the optical signal receiving section of the optical fiber cable, The correctness of the optical connection is discriminated by detecting a specific identification pattern by a signal from the plurality of lead wires during optical connection with the optical signal transmitting unit of the fiber cable. The optical wiring device described. 11. The optical wiring device according to claim 10, wherein the identification pattern generating circuit has a different identification pattern for each optical signal receiving section mounting unit. 12. A pair of connectors are used for the optical connecting portions at both ends of the optical fiber cable, one connector is provided with a conductive guide male pin, and the other connector is provided with a conductive guide pin. A female pin is provided, and the electrical connecting means has lead wires arranged on the optical fiber cable, and both ends thereof are connected to either one of the guide male pin and the female pin, respectively. The optical wiring device according to claim 1.