CN115604204A - Photoelectric interface multiplexing device and system - Google Patents
Photoelectric interface multiplexing device and system Download PDFInfo
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- CN115604204A CN115604204A CN202211282717.0A CN202211282717A CN115604204A CN 115604204 A CN115604204 A CN 115604204A CN 202211282717 A CN202211282717 A CN 202211282717A CN 115604204 A CN115604204 A CN 115604204A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
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Abstract
The invention discloses a photoelectric interface multiplexing device and a photoelectric interface multiplexing system. An optical-electrical interface multiplexing device comprising: a switching module, an electrical module and an optical module connector; the switching module is respectively connected with the electric module, the optical module connector and the media intervention control module; the optical module connector is connected with the media intervention control module; the electric module is used for connecting an electric port peripheral; the optical module connector is used for connecting an optical module; the optical module connector is also used for transmitting a control signal to the switching module; and the switching module is used for switching the connection mode of the electric module and the media access control module under the control of the control signal. The photoelectric interface multiplexing device transmits the control signal to the switching module through the optical module connector, so that the switching module switches the connection mode of the electric module and the media intervention control module under the control of the control signal, and the cost for realizing photoelectric multiplexing is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an optical-electrical interface multiplexing device and system.
Background
With the continuous development of communication technology, the application demand of the photoelectric multiplexing interface in the switch is continuously increased, the photoelectric multiplexing interface can be used as an electrical interface or an optical interface, and during actual use, only one of the electrical interface or the optical interface can be used at the same time, but the electrical interface or the optical interface and the optical interface cannot work at the same time.
In the prior art, a Combo Port Physical Layer chip (Combo PHY) may be used to implement optical-electrical multiplexing, and when one of an electrical interface and an optical interface is activated, the other interface may be automatically disabled by the optical-electrical multiplexing Port Physical Layer chip, but the optical-electrical multiplexing Port Physical Layer chip has a higher cost and fewer types, and is not suitable for being used in a large range in practical applications.
Disclosure of Invention
The invention provides a photoelectric interface multiplexing device and a photoelectric interface multiplexing system, which reduce the cost for realizing photoelectric multiplexing.
In a first aspect, an embodiment of the present invention provides an optical-electrical interface multiplexing apparatus, including:
a switching module, an electrical module and an optical module connector;
the switching module is respectively connected with the electric module, the optical module connector and the media intervention control module; the optical module connector is connected with the media intervention control module;
the electric module is used for connecting an electric port peripheral;
the optical module connector is used for connecting an optical module;
the optical module connector is also used for transmitting a control signal to the switching module;
the switching module is used for switching the connection mode of the electric module and the media intervention control module under the control of the control signal.
Further, the optical module connector is specifically configured to:
transmitting a first control signal to the switching module, wherein the switching module disconnects the electric module from the media access control module under the control of the first control signal;
or, transmitting a second control signal to the switching module, where the switching module establishes a connection between the electrical module and the media access control module under the control of the second control signal;
the control signal includes the first control signal and the second control signal.
Further, the switching module includes a switch, and the switch is configured to switch a connection manner between the electrical module and the media access control module by opening and closing the switch.
Further, the switching module is specifically configured to:
acquiring a first control signal; under the control of the first control signal, opening the switch to disconnect the electric module from the media intervention control module;
or acquiring a second control signal; under the control of the second control signal, the switch is closed to establish the connection between the electric module and the media intervention control module.
Further, the electrical module includes:
the system comprises a port physical layer unit, a network transformer and an electric port interface unit;
the port physical layer unit is connected with the switching module and the network transformer, and the network transformer is connected with the electric port interface unit;
the port physical layer unit is used for realizing data conversion; the network transformer is used for realizing signal level coupling; the electric port interface unit is used for connecting an electric port peripheral.
Further, the optical-electrical interface multiplexing apparatus further includes:
a signal conversion module connected with the optical module connector and the switching module, respectively;
the signal conversion module is used for carrying out level conversion on the control signal transmitted by the optical module connector and transmitting the converted level signal to the switching module;
the switching module switches the connection mode of the electric module and the media access control module under the control of the level signal.
Further, the signal conversion module is specifically configured to:
acquiring a first control signal, converting the first control signal into a high-level signal, and transmitting the high-level signal to the switching module, wherein the switching module disconnects the electric module from the media access control module under the control of the high-level signal;
acquiring a second control signal, converting the second control signal into a low-level signal, and transmitting the low-level signal to the switching module, wherein the switching module establishes connection between the electrical module and the media access control module under the control of the low-level signal;
the first control signal is a low level signal, and the second control signal is a high level signal.
In a second aspect, an embodiment of the present invention provides an optical-electrical interface multiplexing system, including the optical-electrical interface multiplexing apparatus, a media intervention control module, an optical module, and an electrical interface peripheral device according to the first aspect;
the photoelectric interface multiplexing device is used for connecting the media intervention control module, the optical module and/or the electric port peripheral.
Further, the optical-electrical interface multiplexing apparatus is specifically configured to:
under the condition that the optical module is connected to the optical-electrical interface multiplexing device, the optical module realizes data interaction with the media intervention control module through the optical-electrical interface multiplexing device;
and under the condition that the optical module is not connected to the photoelectric interface multiplexing device, the electric port peripheral is connected with the photoelectric interface multiplexing device through a network cable, and data interaction is realized through the photoelectric interface multiplexing device and the media intervention control module.
Further, the optical-electrical interface multiplexing apparatus is specifically configured to:
and under the condition that the optical module and the electric port peripheral are both connected to the photoelectric interface multiplexing device, only the optical module realizes data interaction with the media intervention control module through the photoelectric interface multiplexing device.
The technical scheme of the embodiment of the invention provides an optoelectronic interface multiplexing device and system. An optical-electrical interface multiplexing device comprising: a switching module, an electrical module and an optical module connector; the switching module is respectively connected with the electric module, the optical module connector and the media intervention control module; the optical module connector is connected with the media intervention control module; the electric module is used for connecting an electric port peripheral; the optical module connector is used for connecting an optical module; the optical module connector is also used for transmitting a control signal to the switching module; and the switching module is used for switching the connection mode of the electric module and the media access control module under the control of the control signal. The photoelectric interface multiplexing device transmits the control signal to the switching module through the optical module connector, so that the switching module switches the connection mode of the electric module and the media intervention control module under the control of the control signal, and the cost for realizing photoelectric multiplexing is reduced.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical-electrical interface multiplexing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an optical-electrical interface multiplexing apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of another optical-electrical interface multiplexing apparatus according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an ethernet optical port multiplexing apparatus according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of another ethernet optical port multiplexing apparatus according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of an optical-electrical interface multiplexing system according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict. In the following embodiments, optional features and examples are provided in each embodiment, and the individual features described in the embodiments may be combined to form a plurality of alternatives.
It should be noted that the terms "first", "second", etc. in the present invention are used for distinguishing similar objects, and are not necessarily used for describing a particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a schematic structural diagram of an optical-electrical interface multiplexing apparatus according to an embodiment of the present invention, which is applicable to implementing optical-electrical multiplexing, and the optical-electrical interface multiplexing apparatus may be disposed in an optical-electrical interface multiplexing system provided by the embodiment of the present invention.
As shown in fig. 1, an optical-electrical interface multiplexing apparatus 10 according to a first embodiment of the present invention includes:
a switching module 11, an electrical module 12 and an optical module connector 13;
the switching module 11 is respectively connected with the electric module 12, the optical module connector 13 and the media access control module; the optical module connector 13 is connected with the media intervention control module;
the electric module 12 is used for connecting an electric port peripheral;
the optical module connector 13 is used for connecting an optical module;
the optical module connector 13 is also used for transmitting a control signal to the switching module 11;
the switching module 11 is configured to switch a connection mode between the electrical module 12 and the media access control module under the control of the control signal.
The manner of connecting the switching module 11 to the electrical module 12, the optical module connector 13 and the media access control module is not limited, and may be electrically connected. The optical module connector 13 is not limited to be electrically connected to the media access control module.
The electrical module 12 is used to connect electrical port peripherals. The manner of connecting the electrical module 12 to the electrical port peripheral is not limited as long as the electrical module 12 can be connected to the electrical port peripheral, for example, the electrical module 12 can be connected to the electrical port peripheral through a network cable. The electric port peripheral may refer to a peripheral capable of accessing the electric module 12, such as a notebook computer, a server, or a personal digital assistant.
The optical module connector 13 is used to connect an optical module. The mode of connecting the optical module connector 13 to the optical module is not limited as long as the optical module connector 13 can be connected to the optical module. For example, an interface for implementing hot plug may be disposed in the optical module connector 13, so that the optical module may be directly connected to the optical module connector 13 through the hot plug interface.
The optical module may be an optoelectronic device for performing photoelectric and electro-optical conversion, a transmitting end of the optical module may convert an electrical signal into an optical signal, and a receiving end of the optical module may convert the optical signal into an electrical signal. The packaging Form of the optical module is not limited as long as the function that the optical module should realize can be realized, and the optical module may be a Small Form Plug (SFP) package or the like.
The optical module connector 13 is also used to transmit control signals to the switching module 11. The control signal may refer to a signal for controlling the switching module 11. The manner in which the optical module connector 13 sends the control signal to the switching module 11 is not limited, for example, the optical module connector 13 is electrically connected to the switching module 11, so that the optical module connector 13 can send the control signal to the switching module 11. The optical module connector 13 may continuously transmit a control signal to the switching module 11, and the transmitted control signal may have two states, such as a high level signal or a low level signal, and the switching module 11 may be controlled by the two states of the control signal. The high level signal or the low level signal is not limited, for example, the high level signal with the level signal value higher than the first level threshold may be set, the low level signal with the level signal value lower than the second level threshold may be set, and the first level threshold and the second level threshold may be determined according to the actual application requirement, and are not limited specifically.
The control signal may be a high level signal or a low level signal, and may be specifically determined according to whether the optical module connector 13 is connected to the optical module. For example, when the optical module is connected to the optical module connector 13, indicating that the optical module is in place, the control signal may be a low level signal; when the optical module is not plugged into the optical module connector 13, indicating that the optical module is not in place, the control signal may be a high level signal.
The switching module 11 is configured to switch a connection mode between the electrical module 12 and the media access control module under the control of the control signal. When the optical module is in place, the optical module realizes data interaction with the media intervention control module through the optical module connector 13, at this time, a control signal sent by the optical module connector 13 is a low-level signal, the switching module 11 receives the low-level signal sent by the optical module connector 13, and the connection between the electrical module 12 and the media intervention control module is disconnected, so that only the optical module can perform data interaction with the media intervention control module; when the optical module is not in place, the optical module cannot realize data interaction with the media access control module through the optical module connector 13, at this time, a control signal sent by the optical module connector 13 is a high-level signal, the switching module 11 receives the high-level signal sent by the optical module connector 13, connection between the electrical module 12 and the media access control module is established, and if the electrical port peripheral is connected to the electrical module 12, only the electrical port peripheral can realize data interaction with the media access control module through the electrical module 12.
The media access control module may implement functions that can be implemented by a media access control layer included in a data link layer in an Open System Interconnection (OSI) model, and may implement data transceiving. In the embodiment of the present invention, the media access control module may indirectly send data to the optical module or the electrical port peripheral, or may receive data sent by the optical module or the electrical port peripheral.
In the optical-electrical interface multiplexing apparatus 10 provided in the embodiment of the present invention, the switching module 11 is respectively connected to the electrical module 12, the optical module connector 13, and the media access control module, and the optical module connector 13 is connected to the media access control module. The optical module connector 13 transmits a control signal to the switching module 11, so that the switching module 11 switches the connection mode between the electrical module 12 and the media access control module under the control of the control signal. When the optical module is in place, the optical module connector 13 controls the switching module 11 to disconnect the electrical module 12 from the media access control module, so that only the optical module can perform data interaction with the media access control module; when the optical module is not in place, the optical module connector 13 controls the switching module 11 to establish the connection between the electrical module 12 and the media access control module, and at this time, if the electrical port peripheral is connected to the electrical module 12, the electrical port peripheral and the media access control module can realize data interaction; the multiplexing of the optical-electrical interface is realized by the optical-electrical interface multiplexing device 10.
It should be noted that the optical-electrical interface multiplexing apparatus provided in the embodiment of the present invention may be applied to an ethernet switch, and an optical interface and an electrical interface are disposed on a panel of the ethernet switch to implement optical-electrical multiplexing, where an optical module connector may serve as an optical interface, an optical module may be connected to the ethernet switch through the optical interface, and an electrical interface may be used to connect to an electrical interface peripheral, and only the optical module or the electrical interface peripheral and the ethernet switch may implement data interaction at the same time, and the optical module and the electrical interface peripheral and the ethernet switch may not operate simultaneously.
According to the technical scheme of the embodiment of the invention, the optical module connector transmits the control signal to the switching module, so that the switching module switches the connection mode of the electric module and the media intervention control module under the control of the control signal. The optical module connector controls the switching module, so that the switching module switches the connection mode of the electrical module and the media intervention control module, data interaction can be realized by only the electrical port peripheral or only the optical module and the media intervention control module at the same time, multiplexing of an optical-electrical interface can be realized without a Combo PHY chip which is high in cost and difficult to obtain, and the cost for realizing optical-electrical multiplexing is reduced.
Example two
Fig. 2 is a schematic structural diagram of an optoelectronic interface multiplexing device according to a second embodiment of the present invention, and this embodiment is based on the first embodiment and further refines the structure of the optoelectronic interface multiplexing device 10.
As shown in fig. 2, in addition to the above embodiment, the switching module 11 in this embodiment includes a switch 111, and the switch 111 is used for switching the connection mode between the electrical module 12 and the media access control module by opening and closing the switch 111.
The type of the switch 111 included in the switching module 11 is not limited as long as the connection between the electrical module 12 and the media access control module can be switched by opening and closing the switch 111. For example, the switch 111 may be a signal relay, the signal relay may receive a control signal sent by the optical module connector 13, and when the control signal sent by the optical module connector 13 is a low level signal, the control signal received by the control pin of the signal relay is a low level signal, the signal relay is disconnected, so that the connection between the electrical module 12 and the media access control module is disconnected; when the control signal sent by the optical module connector 13 is a high level signal, and the control signal received by the control pin of the signal relay is a high level signal, the signal relay is closed, and the connection between the electrical module 12 and the media access control module is established.
In one embodiment, the optical module connector 13 is specifically configured to:
transmitting a first control signal to the switching module 11, wherein the switching module 11 disconnects the electrical module 12 from the media access control module under the control of the first control signal;
or, a second control signal is transmitted to the switching module 11, and the switching module 11 establishes a connection between the electrical module 12 and the media access control module under the control of the second control signal;
the control signals include a first control signal and a second control signal.
When the optical module connector 13 is connected to the optical module, the control signal sent by the optical module connector 13 to the switching module 11 is a first control signal, which may be a low level signal, and the switching module 11 may be controlled by the first control signal to disconnect the electrical module 12 from the media access control module.
When the optical module connector 13 is not connected to the optical module, the control signal sent by the optical module connector 13 to the switching module 11 is a second control signal, which may be a high level signal, and the switching module 11 may be controlled by the second control signal to establish the connection between the electrical module 12 and the media access control module.
It should be noted that the optical module connector 13 may transmit the first control signal or the second control signal to the switching module 11, and cannot transmit the first control signal and the second control signal at the same time, so as to ensure that only the optical module or only the electrical port peripheral device performs data interaction with the media intervention control module at the same time.
In one embodiment, the switching module 11 is specifically configured to:
acquiring a first control signal; under the control of the first control signal, the switch 111 is turned off to disconnect the electrical module 12 from the media access control module;
or acquiring a second control signal; under the control of the second control signal, the switch 111 is closed to establish the connection between the electrical module 12 and the media intervention control module.
The switching module 11 can obtain a first control signal through the optical module connector 13, where the first control signal indicates that the optical module is connected to the optical module connector 13, and the switching module 11, in response to the received first control signal, disconnects the switch 111, so that the electrical module 12 is disconnected from the media access control module, and only the optical module can implement data interaction with the media access control module.
Or, the switching module 11 may obtain a second control signal through the optical module connector 13, where the second control signal indicates that the optical module is not connected to the optical module connector 13, and the switching module 11 closes the switch 111 in response to the received second control signal to establish a connection between the electrical module 12 and the media access control module, and at this time, if the electrical interface peripheral is connected to the electrical module 12, only the electrical interface peripheral may implement data interaction with the media access control module.
The electrical module 12 in this embodiment includes:
a port physical layer unit 121, a network transformer 122 and an electrical port interface unit 123;
the port physical layer unit 121 is connected to the switching module 11 and the network transformer 122, and the network transformer 122 is connected to the electrical port interface unit 123;
the port physical layer unit 121 is used for implementing data conversion; the network transformer 122 is used to implement signal level coupling; the electrical port interface unit 123 is used for connecting an electrical port peripheral.
The connection between the port phy unit 121 and the switching module 11 and the network transformer 122, and the connection between the network transformer 122 and the electrical port interface unit 123 are not limited, as long as the port phy unit 121 can perform data interaction with the switching module 11 and the network transformer 122, and the network transformer 122 can perform data interaction with the electrical port interface unit 123, for example, the connection may be electrical connection.
The manner in which the electrical port peripheral is connected to the electrical port interface unit 123 is not limited as long as the electrical port peripheral can be connected to the electrical port interface unit 123. For example, the electrical port peripheral device can be connected to the electrical port interface unit 123 through a network cable.
The port physical layer unit 121 is connected to the switching module 11, and when the switching module 11 obtains the second control signal sent by the optical module connector 13, the switching module 11 establishes a connection between the electrical module 12 and the media access control module, that is, the port physical layer unit 121 may implement data interaction with the media access control module through the switching module 11. At this time, if the electrical port peripheral device is connected to the electrical port interface unit 123, the electrical port peripheral device may indirectly implement data interaction with the media intervention control module through the electrical port interface unit 123, the network transformer 122, the port physical layer unit 121, and the switching module 11 in sequence.
The port physical layer unit 121 may be used to implement data conversion, such as data conversion between a physical layer and a data link layer. The port physical layer unit 121 may perform data conversion on data sent by the media intervention control module, and send the data to the electrical port peripheral through the network transformer 122 and the electrical port interface unit 123; or the data transmitted by the electric port peripheral equipment can be transmitted to the media intervention control module after being subjected to data conversion.
The network transformer 122 is used to implement signal level coupling, for example, the network transformer 122 may couple a differential signal sent by the port physical layer unit 121, and then transmit the differential signal to an electrical port peripheral through the port interface unit 123, so as to block a direct current component in the signal, and improve the anti-interference capability of the optical electrical interface multiplexing apparatus 10.
Fig. 3 is a schematic structural diagram of another optical-electrical interface multiplexing apparatus according to a second embodiment of the present invention, and fig. 3 may be based on fig. 2, where a signal conversion module 14 is added between the optical module connector 13 and the switching module 11.
In one embodiment, the optical-electrical interface multiplexing device 10 further includes:
the signal conversion module 14, the signal conversion module 14 is connected with optical module connector 13 and switching module 11 separately;
a signal conversion module 14, configured to perform level conversion on the control signal transmitted by the optical module connector 13, and transmit the converted level signal to the switching module 11;
the switching module 11 switches the connection mode between the electrical module 12 and the media access control module under the control of the level signal.
In the embodiment of the present invention, when the optical module is connected to the optical module connector 13, the control signal may be a low level signal, and the control signal needs to control the switching module 11 to disconnect the electrical module 12 from the media access control module, but if only a high level signal can control the switching module 11 to disconnect the electrical module 12 from the media access control module, level conversion is needed, so that when the optical module is in place, the control signal received by the switching module 11 is a high level signal; similarly, when the optical module is not connected to the optical module connector 13, the control signal may be a high level signal, and the control signal needs to control the switching module 11 to establish the connection between the electrical module 12 and the media access control module, but if only the low level signal can control the switching module 11 to establish the connection between the electrical module 12 and the media access control module, level conversion is needed, so that when the optical module is not in place, the control signal received by the switching module 11 is a low level signal; therefore, it is necessary to add a signal conversion module 14 in the optical electrical interface multiplexing apparatus 10, so that when the optical module is in place or not in place, the control signal sent by the optical module connector 13 is subjected to level conversion by the signal conversion module 14, and then the converted control signal sent to the switching module 11 can correspondingly control the connection manner between the electrical module 12 and the media access control module.
The connection manner of the signal conversion module 14 with the optical module connector 13 and the switching module 11 is not limited, as long as the signal conversion module 14 can be connected with the optical module connector 13 and the switching module 11, respectively, and the connection manner may be electrical connection.
The signal conversion module 14 is configured to perform level conversion on the control signal transmitted by the optical module connector 13 and transmit the converted level signal to the switching module 11, and it can be understood that, when the level of the control signal transmitted by the optical module connector 13 is different from the level capable of controlling the switching module 11, the level conversion module 14 may perform level conversion so that the converted control signal (i.e., the level signal) can control the switching module 11.
The switching module 11 switches the connection mode between the electrical module 12 and the media access control module under the control of the level signal, which can be understood as that the level signal is a signal after level conversion by the signal conversion module 14, and the level signal can control the switching module 11, so that when the optical module is in place or not in place, the switching module 11 correspondingly controls the connection mode between the electrical module 12 and the media access control module.
In one embodiment, the signal conversion module 14 is specifically configured to:
acquiring a first control signal, converting the first control signal into a high level signal, and transmitting the high level signal to the switching module 11, wherein the switching module 11 disconnects the electrical module 12 from the media access control module under the control of the high level signal;
acquiring a second control signal, converting the second control signal into a low level signal, and transmitting the low level signal to the switching module 11, wherein the switching module 11 establishes a connection between the electrical module 12 and the media access control module under the control of the low level signal;
the first control signal is a low level signal, and the second control signal is a high level signal.
The first control signal indicates that the optical module is in place, the switching module 11 needs to disconnect the electrical module 12 from the media access control module, the first control signal is a low level signal, and if only a high level signal can control the switching module 11 to disconnect the electrical module 12 from the media access control module, the first control signal can be converted into a high level signal by the signal conversion module 14 and transmitted to the switching module 11, so that the switching module 11 can disconnect the electrical module 12 from the media access control module.
The second control signal indicates that the optical module is not in place, the switching module 11 needs to establish a connection between the electrical module 12 and the media access control module, the second control signal is a high level signal, and if only a low level signal can control the switching module 11 to establish a connection between the electrical module 12 and the media access control module, the second control signal is converted into a low level signal by the signal conversion module 14 and transmitted to the switching module 11, so that the switching module 11 can establish a connection between the electrical module 12 and the media access control module.
According to the technical scheme of the embodiment of the invention, the first control signal or the second control signal is transmitted to the switching module through the optical module connector, so that a switch included in the switching module switches the connection mode of the electric module and the media intervention control module under the control of the first control signal or the second control signal; the electric port peripheral accessed to the electric module can carry out data interaction with the media intervention control module through the electric module; when level conversion is needed, a signal conversion module is added between the switching module and the optical module connector, so that the optical module connector controls the switching module, and multiplexing of the photoelectric interface is realized.
EXAMPLE III
The present embodiment is an exemplary description of the above-described embodiments. Fig. 4 is a schematic structural diagram of an ethernet optical port multiplexing apparatus according to a third embodiment of the present invention.
In the embodiment of the present invention, an ethernet optical-electrical interface multiplexing apparatus 20 is provided, where the ethernet optical-electrical interface multiplexing apparatus 20 is a low-cost and easily-available optical-electrical interface multiplexing apparatus. The ethernet optical interface multiplexing apparatus 20 includes a switch module (i.e., a switch module), a PHY chip (i.e., a port physical layer unit), a network transformer, an electrical interface (i.e., an electrical interface unit), and an optical module interface (i.e., an optical module connector).
The switch module comprises a data input port, a data output port and a control interface (namely a control end);
a Media Access Control (MAC) module is connected with the optical module interface and the data input port of the switch module;
an optical module in-place signal (namely a control signal) of the optical module interface is connected with a control interface of the switch module;
and a data output port of the switch module is connected with the PHY chip, the network transformer and the electric port interface in sequence.
The corresponding optical module in-place signal is in two states when the optical module is in place and the optical module is not in place. When the optical module is in place, the in-place signal of the optical module is a low level signal, namely a first control signal; when the optical module is not in place, the in-place signal of the optical module is a high level signal, namely a second control signal.
Selecting a proper switch module, and when the optical module is not in place, controlling the switch module to be closed by an in-place signal (namely a second control signal) of the optical module so that a data signal of the MAC module can be connected with the PHY chip and the optical module interface; when the optical module is in place, the on-position signal (namely, the first control signal) of the optical module controls the switch module to be disconnected, and the data signal of the MAC module is only connected with the interface of the optical module.
When the optical module is not in place, the switch module is closed, if the electric port interface is inserted into the network cable, the MAC module, the switch module, the PHY chip, the network transformer, the electric port interface and the network cable form a network data path, the scene is an electric port mode, and under the electric port mode, an electric port peripheral can be connected into the electric port interface through the network cable, so that data interaction is realized with the MAC module.
When the optical module is in place, the switch module is disconnected no matter whether the electric interface is plugged into a network cable or not, the MAC module is directly connected with the optical module interface, the scene is an optical interface mode, and the optical module can realize data interaction with the MAC module through the optical module interface in the optical interface mode.
Specifically, the electrical port interface may be a standard RJ45 (Registered Jack 45) interface.
The optical module interface can adopt an SFP optical cage, and the optical module adopts an SFP standard optical module. An optical module presence signal (ABSENT signal) of the SFP standard optical module is at a low level when the optical module is present, and at a high level when the optical module is not present.
The switch module selects a signal relay, and the relay is closed when the control pin of the signal relay is at a high level of 3.3V, and is disconnected when the control pin is at a low level.
When the optical module is not in place and a network cable is inserted into the electric port interface, the ABSENT signal is in a high level, the ABSENT signal controls the signal relay to be closed, the MAC module, the switch module, the PHY chip, the network transformer, the electric port interface and the network cable form a passage, and the scene is an electric port mode.
When the optical module is in place and no network cable is inserted into the electric port interface, the ABSENT signal is in a low level, the ABSENT signal controls the signal relay to be disconnected, the MAC module, the optical module interface and the optical module form a passage, and the scene is an optical port mode.
When the network cable is inserted into the electric port interface and the optical module is in place, the ABSENT signal is in a low level, the ABSENT signal controls the signal relay to be disconnected, the MAC module, the optical module interface and the optical module form a passage, and the scene is an optical port mode.
In order to further improve the adaptability to the switch module, a signal conditioning module (i.e., a signal conversion module) is added between the switch module and the optical module interface. Fig. 5 is a schematic structural diagram of another ethernet optical interface multiplexing apparatus according to a third embodiment of the present invention, and in the ethernet optical interface multiplexing apparatus 20 shown in fig. 5, a signal conditioning module is added between a switch module and an optical module interface.
For example: when the on-position signal of the optical module is 3.3V level and the signal capable of controlling the switch module is 5V level, the signal conditioning module can be used for level matching.
For example: the switch module is set to be closed at a low level and opened at a high level. When the optical module is in place, the in-place signal of the optical module is a low level (namely a first control signal), the signal sent to the switch module by the optical module interface needs to control the switch module to be disconnected, and the high level signal can control the switch module to be disconnected; when the optical module is not in place, the in-place signal of the optical module is a high level (namely a second control signal), the signal sent to the switch module by the optical module interface needs to control the switch module to be closed, and the low level signal can control the switch module to be closed; in this scenario, the signal conditioning module can perform logic conversion, convert the in-place signal of the low-level optical module of the optical module interface into high level, convert the in-place signal of the high-level optical module of the optical module interface into low level, and control the switch module to be switched on or switched off by the converted level signal.
The Ethernet optical port multiplexing device provided by the embodiment of the invention has the advantages of good availability, low cost, no need of software participation, simplicity and reliability.
Example four
Fig. 6 is a schematic structural diagram of an optical-electrical interface multiplexing system according to a fourth embodiment of the present invention, which is applicable to a case of implementing optical-electrical multiplexing.
As shown in fig. 6, an optical-electrical interface multiplexing system 30 provided in an embodiment of the present invention includes:
the device comprises an optical-electrical interface multiplexing device 10, a media intervention control module 31, an optical module 32 and an electrical interface peripheral 33;
the optical-electrical interface multiplexing apparatus 10 is used to connect the media access control module 31, the optical module 32 and/or the electrical interface peripheral 33.
The connection mode of the optical-electrical interface multiplexing apparatus 10 to the media intervention control module 31 is not limited, and may be an electrical connection; the mode of connecting the optical module 32 with the optoelectronic interface multiplexing device 10 is not limited, for example, an interface for implementing hot plug may be set in the optoelectronic interface multiplexing device 10, so that the optical module 32 can be directly connected to the optoelectronic interface multiplexing device 10 through the hot plug interface; the mode of connecting the optical electrical interface multiplexing apparatus 10 to the electrical port peripheral 33 is not limited, and the optical electrical interface multiplexing apparatus 10 and the electrical port peripheral 33 may be connected by a network cable.
The optical module 32 or the electrical port peripheral 33 connected to the optical electrical interface multiplexing apparatus 10 can implement data interaction with the media intervention control module 31 through the optical electrical interface multiplexing apparatus 10, but only one of the optical module 32 or the electrical port peripheral 33 can implement data interaction with the media intervention control module 31 at the same time, and if both the optical module 32 and the electrical port peripheral 33 are connected to the optical electrical interface multiplexing apparatus 10, only the optical module 32 can implement data interaction with the media intervention control module 31 through the optical electrical interface multiplexing apparatus 10.
In one embodiment, the optical-electrical interface multiplexing apparatus 10 is specifically configured to:
under the condition that the optical module 32 is connected to the optical-electrical interface multiplexing device 10, the optical module 32 realizes data interaction with the media intervention control module 31 through the optical-electrical interface multiplexing device 10;
when the optical module 32 is not connected to the optical-electrical interface multiplexing device 10, the electrical interface peripheral 33 is connected to the optical-electrical interface multiplexing device 10 through a network cable, and data interaction is realized between the optical-electrical interface multiplexing device 10 and the media intervention control module 31.
When the optical module 32 is connected to the optoelectronic interface multiplexing device 10, it indicates that the optical module 32 is in place, and the optical module connector in the optoelectronic interface multiplexing device 10 can control the switching module to be disconnected, so that only the optical module connector in the optoelectronic interface multiplexing device 10 is connected to the media access control module 31, that is, the optical module 32 can realize data interaction with the media access control module 31 through the optoelectronic interface multiplexing device 10;
if the optical module 32 is not connected to the optical electrical interface multiplexing device 10, indicating that the optical module 32 is not located, the optical module connector in the optical electrical interface multiplexing device 10 may control the switching module to be closed, so that the electrical module in the optical electrical interface multiplexing device 10 may establish connection with the media access control module 31, and if the electrical interface peripheral 33 is connected to the electrical module in the optical electrical interface multiplexing device 10 through a network cable at this time, the electrical interface peripheral 33 may implement data interaction with the media access control module 31 through the optical electrical interface multiplexing device 10.
In one embodiment, the optical-electrical interface multiplexing apparatus 10 is specifically configured to:
in the case where both the optical module 32 and the electrical port peripheral 33 are connected to the optical-electrical interface multiplexing device 10, only the optical module 32 realizes data interaction with the media intervention control module 31 through the optical-electrical interface multiplexing device 10.
When both the optical module 32 and the electrical interface peripheral 33 are connected to the optical electrical interface multiplexing apparatus 10, indicating that the optical module 32 is in place, the optical module connector in the optical electrical interface multiplexing apparatus 10 may control the switching module to disconnect, and only the optical module connector in the optical electrical interface multiplexing apparatus 10 is connected to the media access control module 31, so that the electrical interface peripheral 33 cannot realize data interaction with the media access control module 31 through the optical electrical interface multiplexing apparatus 10, and only the optical module 32 realizes data interaction with the media access control module 31 through the optical electrical interface multiplexing apparatus 10.
According to the photoelectric interface multiplexing system provided by the embodiment of the invention, the data interaction between the optical module and the electric port peripheral and the media intervention control module can be automatically controlled through the photoelectric interface multiplexing device included in the photoelectric interface multiplexing system, so that the data interaction is carried out between only the optical module or only the electric port peripheral and the media intervention control module at the same time, and the cost for realizing photoelectric multiplexing is reduced.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An optical-electrical interface multiplexing device, comprising:
a switching module, an electrical module and an optical module connector;
the switching module is respectively connected with the electric module, the optical module connector and the media access control module; the optical module connector is connected with the media intervention control module;
the electric module is used for connecting an electric port peripheral;
the optical module connector is used for connecting an optical module;
the optical module connector is also used for transmitting a control signal to the switching module;
the switching module is used for switching the connection mode of the electric module and the media intervention control module under the control of the control signal.
2. The optical-electrical interface multiplexing device according to claim 1, wherein the optical module connector is specifically configured to:
transmitting a first control signal to the switching module, wherein the switching module disconnects the electric module from the media access control module under the control of the first control signal;
or, transmitting a second control signal to the switching module, where the switching module establishes a connection between the electrical module and the media access control module under the control of the second control signal;
the control signal includes the first control signal and the second control signal.
3. The optical-electrical interface multiplexing apparatus according to claim 1, wherein the switching module comprises a switch, and the switch is configured to switch a connection manner between the electrical module and the media access control module by opening and closing the switch.
4. The optical-electrical interface multiplexing device according to claim 3, wherein the switching module is specifically configured to:
acquiring a first control signal; under the control of the first control signal, the switch is disconnected so as to disconnect the electric module from the media intervention control module;
or acquiring a second control signal; under the control of the second control signal, the switch is closed to establish the connection between the electric module and the media intervention control module.
5. The optical-electrical interface multiplexing device of claim 1, wherein the electrical module comprises:
the system comprises a port physical layer unit, a network transformer and an electric port interface unit;
the port physical layer unit is connected with the switching module and the network transformer, and the network transformer is connected with the electric port interface unit;
the port physical layer unit is used for realizing data conversion; the network transformer is used for realizing signal level coupling; the electric port interface unit is used for connecting an electric port peripheral.
6. The optical-electrical interface multiplexing device of claim 1, further comprising:
a signal conversion module connected with the optical module connector and the switching module, respectively;
the signal conversion module is used for carrying out level conversion on the control signal transmitted by the optical module connector and transmitting the converted level signal to the switching module;
the switching module switches the connection mode of the electric module and the media access control module under the control of the level signal.
7. The optical-electrical interface multiplexing device according to claim 6, wherein the signal conversion module is specifically configured to:
acquiring a first control signal, converting the first control signal into a high-level signal, and transmitting the high-level signal to the switching module, wherein the switching module disconnects the electric module from the media access control module under the control of the high-level signal;
acquiring a second control signal, converting the second control signal into a low level signal, and transmitting the low level signal to the switching module, wherein the switching module establishes connection between the electrical module and the media access control module under the control of the low level signal;
the first control signal is a low level signal, and the second control signal is a high level signal.
8. An optical-electrical interface multiplexing system, comprising the optical-electrical interface multiplexing apparatus according to any one of claims 1 to 7, a media intervention control module, an optical module, and an electrical interface peripheral;
the photoelectric interface multiplexing device is used for connecting the media intervention control module, the optical module and/or the electric port peripheral.
9. The optical-electrical interface multiplexing system of claim 8, wherein the optical-electrical interface multiplexing device is specifically configured to:
under the condition that the optical module is connected to the photoelectric interface multiplexing device, the optical module realizes data interaction with the media intervention control module through the photoelectric interface multiplexing device;
and under the condition that the optical module is not connected to the photoelectric interface multiplexing device, the electric port peripheral is connected with the photoelectric interface multiplexing device through a network cable, and data interaction is realized through the photoelectric interface multiplexing device and the media intervention control module.
10. The optical-electrical interface multiplexing system of claim 8, wherein the optical-electrical interface multiplexing device is specifically configured to:
and under the condition that the optical module and the electrical port peripheral equipment are both connected to the photoelectric interface multiplexing device, only the optical module realizes data interaction with the media intervention control module through the photoelectric interface multiplexing device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211282717.0A CN115604204A (en) | 2022-10-19 | 2022-10-19 | Photoelectric interface multiplexing device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211282717.0A CN115604204A (en) | 2022-10-19 | 2022-10-19 | Photoelectric interface multiplexing device and system |
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| CN202211282717.0A Pending CN115604204A (en) | 2022-10-19 | 2022-10-19 | Photoelectric interface multiplexing device and system |
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