CN110149149A - Communication module and KVM switching equipment, system for KVM switching equipment - Google Patents
Communication module and KVM switching equipment, system for KVM switching equipment Download PDFInfo
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- CN110149149A CN110149149A CN201910399201.6A CN201910399201A CN110149149A CN 110149149 A CN110149149 A CN 110149149A CN 201910399201 A CN201910399201 A CN 201910399201A CN 110149149 A CN110149149 A CN 110149149A
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- 238000004891 communication Methods 0.000 title claims abstract description 192
- 230000006854 communication Effects 0.000 title claims abstract description 192
- 230000003287 optical effect Effects 0.000 claims abstract description 125
- 239000013307 optical fiber Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims description 70
- 238000012544 monitoring process Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
Abstract
The present invention relates to videos to show control field, specifically provides a kind of communication module for KVM switching equipment, it is intended to solve how easily to realize the technical issues of KVM switching equipment is communicated with mass external equipment.Every road photo signal channel of the first serial communication interface with optical interface submodule of channel control submodule is connect in communication module provided by the invention, and the second serial communication interface is connect with every road serial communication channels of KVM switching module.The data transmission channel quantity of each optical module in communication module can be increased by optical interface submodule, each optical interface submodule is connect by one group of telecommunication optical fiber with multiple external device communications, to reduce the optical fiber wiring difficulty and cost of KVM switching equipment.Meanwhile every road serial communication channels and multichannel photo signal channel being established by channel control submodule and are communicated to connect, so that KVM switching equipment is the controllable multiple external equipments connecting with optical interface submodule by serial communication channels all the way.
Description
Technical field
The present invention relates to the aobvious control technical fields of video, and in particular to communication module and KVM for KVM switching equipment switch
Equipment, system.
Background technique
KVM switching equipment refers to controlling by one group of keyboard (Keyboard), display (Video) and mouse (Mouse)
The computer peripheral of multiple servers processed, KVM switching equipment can be carried out by preset communication module with external equipment
Communication.Currently, KVM switching equipment is mainly using multiple single channel communications interfaces (such as SFP interface or RJ45 interface) is based on
Fiber optic telecommunications module, i.e., each single channel communications interface are only capable of connecting with an external device communication, when external equipment quantity compared with
When more, this certainly will will increase the quantity of communication cable, cost and wiring difficulty.Simultaneously as the size of communication module limits, no
The biggish single channel communications interface of the order of magnitude can be set, mass external equipment is led to be unable to satisfy KVM switching equipment
Letter demand.
Summary of the invention
In order to solve the above problem in the prior art, in order to solve how easily to realize KVM switching equipment and big
The technical issues of scale external equipment is communicated.The present invention provides a kind of communication modules and KVM for KVM switching equipment
Switching equipment, system can easily realize KVM switching equipment and big rule by the communication module for KVM switching equipment
Mould external equipment is communicated.
In a first aspect, a kind of communication module for KVM switching equipment provided by the invention mainly includes with flowering structure:
Optical interface submodule comprising the both ends of multichannel photo signal channel, every road photo signal channel are respectively arranged with
Light Transmit-Receive Unit, the smooth Transmit-Receive Unit are configured to carry out photoelectric conversion to the light data signal received and export and dock
The electric data-signal received carries out electro-optic conversion and exports；
Channel control submodule comprising multiple first serial communication interfaces and multiple second serial communication interfaces, each
First serial communication interface is connect with every road photo signal channel respectively, and each second serial communication interface switches with KVM respectively
Every road serial communication channels of KVM switching module in equipment, the communication module include: every road serial communication channels connection, institute
State that channel control submodule is configured to control each second serial communication interface and one or more first serial communication interfaces are logical
Letter connection, so that every road serial communication channels and one or more photo signal channel are formed and communicated to connect.
Further, an optional technical solution provided by the invention is:
The communication module further includes back panel connector, and the second serial communication of each of described channel control submodule connects
Mouth is connect by the back panel connector with the road KVM switching module Zhong Mei serial communication channels respectively.
Further, an optional technical solution provided by the invention is:
The channel control submodule is further configured to receive the channel control instruction of the KVM switching module output,
And control the first specified serial communication interface of the channel control instruction and the communication connection of the second serial communication interface.
Further, an optional technical solution provided by the invention is:
The communication module further include:
Monitoring submodule is communicated with the channel control submodule, and the monitoring submodule is configured to monitor described logical
The operating status of road control submodule.
Further, an optional technical solution provided by the invention is:
The monitoring submodule includes MCU processor.
Further, an optional technical solution provided by the invention is:
The channel control submodule includes FPGA processor.
Further, an optional technical solution provided by the invention is:
The message transmission rate of first serial communication interface and second serial communication interface be respectively 6bps and
12bps。
Further, an optional technical solution provided by the invention is:
The optical interface submodule is enhanced QSFP optical module, CXP optical module or CFP optical module.
Further, an optional technical solution provided by the invention is:
The channel control submodule is further configured to receive the channel control instruction of the KVM switching module output,
And control the first specified serial communication interface of the channel control instruction and the communication connection of the second serial communication interface.
Further, an optional technical solution provided by the invention is:
The communication module further include:
Monitoring submodule is communicated with the channel control submodule, and the monitoring submodule is configured to monitor described logical
The operating status of road control submodule.
In second aspect, another communication module for KVM switching equipment provided by the invention mainly includes following knot
Structure:
Back panel connector；
Optical interface submodule comprising the both ends of multichannel photo signal channel, every road photo signal channel are respectively arranged with
Light Transmit-Receive Unit, the smooth Transmit-Receive Unit are configured to carry out photoelectric conversion to the light data signal received and export and dock
The electric data-signal received carries out electro-optic conversion and exports；
Channel control submodule comprising multiple first serial communication interfaces and multiple second serial communication interfaces, each
First serial communication interface is connect with every road photo signal channel respectively, and each second serial communication interface passes through the back respectively
Connector for substrate is connect with every road serial communication channels of KVM switching module in the KVM switching equipment, and the channel controls submodule
Block is configured to receive the channel control instruction of the KVM switching module output, and control the channel control instruction it is specified the
Serial commu-nication interface and the second serial communication interface communicate to connect；
Monitoring submodule is communicated with the channel control submodule, and the monitoring submodule is configured to monitor described logical
The operating status of road control submodule.
In the third aspect, a kind of KVM switching equipment provided by the invention mainly includes KVM switching module and above-mentioned technical side
The communication module of KVM switching equipment is used for described in any one of case.
In fourth aspect, a kind of KVM switch provided by the invention mainly includes that KVM described in above-mentioned technical proposal is cut
Exchange device and multiple far-end optical transceivers, the optical interface submodule of communication module includes the connection of MPO optical fiber in the KVM switching equipment
Device, the road optical interface submodule Zhong Mei photo signal channel are connect with the MPO optical fiber connector respectively；
The KVM switch further includes the first length of fibre of multichannel, the second length of fibre of multichannel and fibre distribution frame, often
One end of the first length of fibre of road is connect with the MPO optical fiber connector respectively, the other end difference of every the first length of fibre of road
Connect with a port of the fibre distribution frame, one end of every the second length of fibre of road respectively with it is every in the fibre distribution frame
The corresponding port connection of the first length of fibre of road, the other end of every the second length of fibre of road connect with a far-end optical transceiver respectively
It connects；
Wherein, the length of second length of fibre is much larger than the length of first length of fibre.
At the 5th aspect, another kind KVM switch provided by the invention mainly includes KVM described in above-mentioned technical proposal
Switching equipment and multiple far-end optical transceivers, the optical interface submodule of communication module includes that light wave point is multiple in the KVM switching equipment
With device, the road optical interface submodule Zhong Mei photo signal channel is connect with the light wavelength division multiplexing respectively；
The KVM switch further includes that two-way third length of fibre, the 4th length of fibre of multichannel and optical wavelength division multiplexing are set
Standby, one end of every road third length of fibre is connect with the light wavelength division multiplexing respectively, the other end of every road third length of fibre
It is connect respectively with the optical wavelength division multiplexing equipment, one end of every the 4th length of fibre of road connects with the optical wavelength division multiplexing equipment respectively
It connects, the other end of every the 4th length of fibre of road is connect with a far-end optical transceiver respectively；
The light wavelength division multiplexing is configured to the light for exporting the optical interface submodule by third length of fibre all the way
Data signal transmission receives the optical wavelength division multiplexing to the optical wavelength division multiplexing equipment, and by another way third length of fibre
The light data signal received is simultaneously transmitted to the optical interface submodule by the light data signal of equipment output；
Wherein, the length of the third length of fibre is much larger than the length of the 4th length of fibre.
Compared with the immediate prior art, above-mentioned technical proposal is at least had the following beneficial effects:
Communication module provided by the present invention for KVM switching equipment mainly includes optical interface submodule and channel control
Module；Optical interface submodule mainly includes multichannel photo signal channel, and the both ends of every road photo signal channel are respectively arranged with light
Transmit-Receive Unit, light Transmit-Receive Unit are configured to carry out photoelectric conversion to the light data signal that receives and export and to receiving
Electric data-signal carries out electro-optic conversion and exports；Channel control submodule mainly includes multiple first serial communication interfaces and multiple
Second serial communication interface, each first serial communication interface are connect with every road photo signal channel respectively, and each second is serial
Communication interface is connect with the road KVM switching module Zhong Mei serial communication channels respectively, and it is every that channel control submodule is configured to control
A second serial communication interface and one or more first serial communication interfaces communicate to connect, so as to every road serial communication channels with
One or more photo signal channel forms communication connection.
Based on above structure, the present invention can increase the data of each optical module in communication module by optical interface submodule
Transmission channel quantity connect each optical interface submodule with multiple external device communications by one group of telecommunication optical fiber,
To reduce the optical fiber wiring difficulty and cost of KVM switching module.Meanwhile KVM can be cut by channel control submodule
It changes the mold the multichannel photo signal channel in the road Kuai Zhongmei serial communication channels and one or more optical interface submodules and establishes and lead to
Letter connection so that KVM switching module by serial communication channels all the way be it is controllable connect with optical interface submodule it is multiple outside
Portion's equipment meets KVM switching equipment to the communication requirement of mass external equipment.
Detailed description of the invention
Fig. 1 is the primary structure schematic diagram of the communication module according to an embodiment of the invention for KVM switching equipment；
Fig. 2 is the primary structure signal of the communication module in accordance with another embodiment of the present invention for KVM switching equipment
Figure；
Fig. 3 is the primary structure schematic diagram of KVM switch according to an embodiment of the invention；
Fig. 4 is the primary structure schematic diagram of KVM switch in accordance with another embodiment of the present invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.
The communication module for KVM switching equipment of one embodiment of the invention is illustrated with reference to the accompanying drawing.
Refering to attached drawing 1, Fig. 1 illustrates the main knot in the present embodiment for the communication module of KVM switching equipment
Structure.As shown in Figure 1, mainly including optical interface submodule 121 and leading in the present embodiment for the communication module 12 of KVM switching equipment
KVM switching module 11 in road control submodule 122, channel control submodule 122 and KVM switching equipment communicates to connect, and KVM is cut
Mold changing block can be configured to the communication connection relationship according to the switching command switching KVM switching equipment and external equipment that receive.
Specifically, optical interface submodule 121 may include multichannel photo signal channel in the present embodiment, every road photo signal channel
Both ends are respectively arranged with light Transmit-Receive Unit, which can be configured to carry out photoelectricity turn to the light data signal received
It changes and exports and electro-optic conversion is carried out to the electric data-signal received and is exported.Channel control submodule 122 may include
Multiple first serial communication interfaces and multiple second serial communication interfaces, each first serial communication interface respectively with every road photoelectricity
Signal path connection, each second serial communication interface are connect with every road serial communication channels respectively, channel control submodule 121
It can be configured to control each second serial communication interface and one or more first serial communication interfaces communicate to connect, so as to every
Road serial communication channels and one or more photo signal channel, which are formed, to be communicated to connect.
Light Transmit-Receive Unit is referred to based on opto-electronic device (Photoelectron Devices, i.e. benefit in the present embodiment
Various function elements made of electricity consumption-photon transition effects) building the unit that can be realized photoelectric conversion and electro-optic conversion.
First serial communication interface and the second serial communication interface refer to can be realized serial communication (i.e. using a data line,
One ground of data is successively transmitted, each data occupies a regular time length) serial line interface (Serial
Interface).Serial communication channels refer to can be realized the communication channel (Communication of serial communication
Channel)。
Optionally, the message transmission rate (Data Transfer Rate) of the first serial communication interface in the present embodiment
Less than the message transmission rate with the second serial communication interface.For example, the first serial communication interface and the second serial communication interface
Message transmission rate can be 6bps and 12bps respectively.
Optionally, communication module 12 can also include back panel connector (Backplane in the present embodiment
Connector, Fig. 1 are not shown), such as backboard high speed connector；Second serial communication of each of channel control submodule 122 connects
Mouth is connect by the back panel connector with 11 road Zhong Mei serial communication channels of KVM switching module respectively.
Optionally, channel control submodule 122 may be configured to receive the output of KVM switching module 11 in the present embodiment
Channel control instruction, and control the first specified serial communication interface of the channel control instruction and the second serial communication interface leads to
Letter connection.For example, channel control instruction may include the logical of every road serial communication channels and one or more photo signal channel
Believe that link order, channel control submodule 122 are instructed according to the communication connection, by what is specified in control and communication connection instruction
The photo signal channel specified in corresponding second serial communication interface of serial communication channels and communication connection instruction is corresponding
The first serial communication interface establish communication connection.
Further, communication module shown in FIG. 1 can also include monitoring submodule, the monitoring submodule in the present embodiment
Block can be configured to the operating status of monitor channel control submodule 122.
Optionally, optical interface submodule 121 can be using tool conventional in the aobvious control technical field of video in the present embodiment
There is the optical module of multiple data transmission channels, such as enhanced QSFP (Quad Small Form-factor Pluggable) optical mode
Block, CXP (120Gb/s 12x Small Form-factor Pluggable, 120Gbps) optical module or CFP (Centum
Form-Factor Pluggable, 100Gbp) optical module, channel control submodule 122 may include FPGA (Field-
Programmable Gate Array) processor, monitoring submodule may include at MCU (Microcontroller Unit)
Manage device.It is connect it is noted that although the present embodiment provides only QSFP optical module, CXP optical module and CFP optical module these three light
At the specific embodiment and MCU of this kind of channel control submodule of the specific embodiment of openning module, FPGA processor
A kind of this specific embodiment of monitoring submodule of reason device is, still, it will be appreciated to those of skill in the art that of the invention
Protection scope is not limited to these specific embodiments, and under the premise of without departing from the principle of the present invention, those skilled in the art can
To use other optical modules with multichannel photo signal channel as optical interface submodule, other processor structures also can be used
Channel control submodule and monitoring submodule are built, the technical solution after these changes or replacement falls within protection of the invention
Within the scope of.
The present invention can increase the data of each optical interface in communication module by optical interface submodule in the present embodiment
Transmission channel quantity connect each optical interface submodule with multiple external device communications by one group of telecommunication optical fiber,
To reduce the optical fiber wiring difficulty and cost of KVM switching equipment.Meanwhile KVM can be cut by channel control submodule
Multichannel photo signal channel in exchange device Zhong Mei road serial communication channels and one or more optical interface submodules is established logical
Letter connection so that KVM switching equipment by serial communication channels all the way be it is controllable connect with optical interface submodule it is multiple outside
Portion's equipment meets KVM switching equipment to the communication requirement of mass external equipment.
The communication module for KVM switching equipment in another embodiment of the present invention is said with reference to the accompanying drawing
It is bright, in the present embodiment for communication module knot described in the communication module of KVM switching equipment and aforementioned communication module embodiments
Structure is similar with function, the main distinction be the quantity of optical interface submodule in the present embodiment be it is multiple, it is succinct in order to describe, herein not
The structure and function of optical interface submodule and channel control submodule in the present embodiment is repeated again.
Refering to attached drawing 2, Fig. 2 is illustrated in one embodiment for the main of the communication module of KVM switching equipment
Structure.As shown in Fig. 2, for the communication module 12 of KVM switching equipment 11 mainly including 5 optical interface submodules in the present embodiment
121 (optical interface submodule 1- optical interface submodules 5 shown in Fig. 2) and 1 channel control submodule 122, channel control submodule
Block 122 mainly includes 20 the first serial communication interface (first serial communication interfaces of the first serial communication interface 1- shown in Fig. 2
20) and 10 the first serial communication interfaces (second serial communication interface 10 of the second serial communication interface 1- shown in Fig. 2), first
The message transmission rate of serial communication interface and the first serial communication interface is 6bps and 12bps respectively, in KVM switching equipment
KVM switching module 11 mainly includes 10 road serial communication channels, and each optical interface submodule 121 includes that 4 road photosignals are logical
Road.
The first serial communication interface 1-4 connects with 4 road photo signal channels of optical interface submodule 1 respectively in the present embodiment
It connects, the first serial communication interface 5-8 is connect with 4 road photo signal channels of optical interface submodule 2 respectively, and the first serial communication connects
Mouthful 9-12 is connect with 4 road photo signal channels of optical interface submodule 3 respectively, the first serial communication interface 13-16 respectively with light
4 road photo signal channels of interface sub-module 4 connect, the first serial communication interface 17-20 respectively with optical interface submodule 54
The connection of road photo signal channel；Second serial communication interface 1-10 is connect with 10 road serial communication channels respectively.
In a KVM switching equipment embodiment of the invention, KVM switching equipment may include KVM switching module with before
State the communication module that KVM switching equipment is used for described in communication module embodiment.
In a KVM switch embodiment of the invention, KVM switch may include aforementioned KVM switching equipment
The structures such as KVM switching equipment described in embodiment, multiple far-end optical transceivers, multiple proximal end optical transmitter and receivers and fibre distribution frame.Below
The KVM switch in the present embodiment is specifically described in conjunction with attached drawing 3.
Refering to attached drawing 3, Fig. 3 illustrates the primary structure of KVM switch in the present embodiment.As shown in figure 3, this
KVM switch mainly includes KVM switching equipment 21, fibre distribution frame 22,4 tunnel the first length of fibre 23,4 tunnels in embodiment
Two far-end optical transceivers 25 of length of fibre 24,4 (KVM-RX optical transmitter and receiver 1 shown in Fig. 3 to KVM-RX optical transmitter and receiver 4), 4 tunnels the 5th are long
It spends optical fiber 25 and 4 proximal end optical transmitter and receiver 27 (KVM-TX optical transmitter and receiver 1 shown in Fig. 3 to KVM-TX optical transmitter and receiver 4)；KVM switching equipment
21 be that KVM switching equipment described in aforementioned KVM switching equipment embodiment is (i.e. shown in fig. 1 or fig. 2 by communication module 11 and KVM
The KVM switching equipment that switching module 12 is constituted), KVM switching equipment 21 includes two communication module (Fig. 3 institutes in the present embodiment
The communication module 1-2 shown), in addition, the optical interface submodule in each communication module further includes MPO (Multi in the present embodiment
Push On) optical fiber connector, the road optical interface submodule Zhong Mei photo signal channel connect with the MPO optical fiber connector respectively.
One end of every the first length of fibre of road 23 is connect with MPO optical fiber connector respectively in the present embodiment, every the first length of fibre of road
23 other end is connect with a port of fibre distribution frame 22 respectively, one end of every the second length of fibre of road 24 respectively with optical fiber
The connection of 22 the first length of fibre of the road Zhong Mei of distributing frame corresponding port, the other end of every the second length of fibre of road 24 respectively with one
SFP (the Small Form-factor Pluggable) interface of far-end optical transceiver 25 connects, and the one of every the 5th length of fibre 26 of road
End is connect with MPO optical fiber connector respectively, the other end of every the 5th length of fibre 26 of road respectively with proximal end optical transmitter and receiver 27
The connection of SFP interface.
Optionally, the optical interface submodule in the present embodiment is enhanced QSFP optical module (QSFP+ shown in Fig. 3), the
The length of two length of fibre is much larger than the length of the first length of fibre, the equal length of the first length of fibre and the 5th length of fibre
Or it is close.
Far-end optical transceiver 25 refers to being set to apart from the farther away optical transmitter and receiver of KVM switching equipment 21 in the present embodiment
(Optical Transmitter And Receiver), proximal end optical transmitter and receiver 27 refers to being set to apart from KVM switching equipment 21
Closer optical transmitter and receiver.For example, the distance between far-end optical transceiver 25 and KVM switching equipment 21 are more than or equal to preset first distance
Threshold value (such as 1km), the distance between proximal end optical transmitter and receiver 27 and KVM switching equipment 21 are less than or equal to preset second distance threshold value
(such as 100m).
In another KVM switch embodiment of the invention, KVM switch may include that above-mentioned KVM switching is set
The knots such as KVM switching equipment, multiple far-end optical transceivers, multiple proximal end optical transmitter and receivers and optical wavelength division multiplexing equipment described in standby embodiment
Structure.The KVM switch in 4 pairs of the present embodiment is specifically described with reference to the accompanying drawing.
Refering to attached drawing 4, Fig. 4 illustrates the primary structure of KVM switch in the present embodiment.As shown in figure 4, this
In embodiment KVM switch mainly include KVM switching equipment 31, optical wavelength division multiplexing equipment 32, two-way third length of fibre 33,
4 tunnel, 34,4 far-end optical transceivers 35 of the 4th length of fibre (KVM-RX optical transmitter and receiver 1 shown in Fig. 4 to KVM-RX optical transmitter and receiver 4) and more
A proximal end optical transmitter and receiver (Fig. 4 is not shown).KVM switching equipment 31 is KVM switching equipment described in aforementioned KVM switching equipment embodiment
(KVM switching equipment i.e. shown in fig. 1 or fig. 2 being made of communication module 11 and KVM switching module 12), and KVM switching equipment
31 include two communication modules (communication module 1-2 shown in Fig. 4), in addition, the light in each communication module in the present embodiment
Interface sub-module further includes light wavelength division multiplexing (Fig. 4 is not shown), optical interface submodule Zhong Mei road photo signal channel difference
It is connect with the light wavelength division multiplexing.One end of every road third length of fibre 33 connects with light wavelength division multiplexing respectively in the present embodiment
It connects, the other end of every road third length of fibre 33 is connect with a port of optical wavelength division multiplexing equipment 32 respectively, and every road the 4th is long
Degree optical fiber 34 one end connect respectively with optical wavelength division multiplexing equipment 32, the other end of every the 4th length of fibre 34 of road respectively with one
The SFP interface of far-end optical transceiver 35 connects.
Optical wavelength division multiplexing equipment 32 and light wavelength division multiplexing are all based on wavelength-division multiplex technique in the present embodiment
The device of (Wavelength Division Multiplexing) building, which can be by the light carrier of a variety of different wave lengths
Signal merges together and is coupled in the same root optical fiber of optical link and transmitted, additionally it is possible to by the light carrier of various wavelength point
From and revert to original signal.
Light wavelength division multiplexing is configured to by third length of fibre 33 all the way that optical interface submodule is defeated in the present embodiment
Light data signal out is transmitted to optical wavelength division multiplexing equipment 32, and receives light wave point again by another way third length of fibre 33
With the light data signal of the output of equipment 32 and the light data signal received is transmitted to optical interface submodule.
Optionally, the optical interface submodule in the present embodiment is enhanced QSFP optical module (QSFP+ shown in Fig. 4), this
The length of third length of fibre is much larger than the length of the 4th length of fibre in embodiment.
It is noted that the connection type and KVM of KVM switching equipment 31 and proximal end optical transmitter and receiver switch in the present embodiment
Equipment 31 is similar with the connection type of far-end optical transceiver, succinct in order to describe, herein no longer to KVM switching equipment in the present embodiment
31 are repeated with the connection type of proximal end optical transmitter and receiver.Optionally, the optical interface submodule in the present embodiment in KVM switching equipment 31
Block can also include MPO (Multi Push On) optical fiber connector, the connection type of KVM switching equipment 31 and proximal end optical transmitter and receiver,
And KVM switching equipment 21 is similar with the connection type of proximal-distal machine 27 in aforementioned KVM switch embodiment, in order to describe
Succinctly, no longer KVM switching equipment 31 in the present embodiment and the connection type of proximal end optical transmitter and receiver are repeated herein.
It should be understood that the quantity of the modules in Fig. 1-4 is only schematical.According to actual needs, each module can
With arbitrary quantity.
It will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments is wrapped
Certain features for including rather than other feature, but the combination of the feature of different embodiments mean in the scope of the present invention it
It is interior and form different embodiments.For example, in claims of the present invention, embodiment claimed it is any it
One can in any combination mode come using.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Word " comprising " does not exclude the presence of element or step not listed in the claims.The use of word first and second does not indicate to appoint
What sequence, can be construed to title for these words.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (14)
1. a kind of communication module for KVM switching equipment, which is characterized in that the KVM switching module in the KVM switching equipment
Including multi-path serial communication channel, the communication module includes:
Optical interface submodule comprising multichannel photo signal channel, the both ends of every road photo signal channel are respectively arranged with light receipts
Bill member, the smooth Transmit-Receive Unit are configured to carry out photoelectric conversion to the light data signal that receives and export and to receiving
Electric data-signal electro-optic conversion and export；
Channel control submodule comprising multiple first serial communication interfaces and multiple second serial communication interfaces, each first
Serial communication interface is connect with every road photo signal channel respectively, each second serial communication interface respectively with every road serial communication
Channel connection, the channel control submodule is configured to control each second serial communication interface and one or more first is serial
Communication interface communication connection, so that every road serial communication channels and one or more photo signal channel are formed and communicated to connect.
2. the communication module according to claim 1 for KVM switching equipment, which is characterized in that the communication module is also
Including back panel connector, the second serial communication interface of each of described channel control submodule passes through the backboard respectively and connects
Device is connect with the road KVM switching module Zhong Mei serial communication channels.
3. the communication module according to claim 1 for KVM switching equipment, which is characterized in that channel control
Module is further configured to receive the channel control instruction of the KVM switching module output, and controls the channel control instruction
The first specified serial communication interface and the second serial communication interface communicate to connect.
4. the communication module according to claim 1 for KVM switching equipment, which is characterized in that the communication module is also
Include:
Monitoring submodule is communicated with the channel control submodule, and the monitoring submodule is configured to monitor the channel control
The operating status of system module.
5. the communication module according to claim 4 for KVM switching equipment, which is characterized in that the monitoring submodule
Including MCU processor.
6. the communication module according to claim 1 for KVM switching equipment, which is characterized in that channel control
Module includes FPGA processor.
7. the communication module according to claim 6 for KVM switching equipment, which is characterized in that described first is serial logical
The message transmission rate for believing interface and second serial communication interface is 6bps and 12bps respectively.
8. the communication module according to claim 1 for KVM switching equipment, which is characterized in that the optical interface submodule
Block is enhanced QSFP optical module, CXP optical module or CFP optical module.
9. the communication module according to claim 2 for KVM switching equipment, which is characterized in that channel control
Module is further configured to receive the channel control instruction of the KVM switching module output, and controls the channel control instruction
The first specified serial communication interface and the second serial communication interface communicate to connect.
10. the communication module according to claim 2 for KVM switching equipment, which is characterized in that the communication module is also
Include:
Monitoring submodule is communicated with the channel control submodule, and the monitoring submodule is configured to monitor the channel control
The operating status of system module.
11. a kind of communication module for KVM switching equipment, which is characterized in that the KVM in the KVM switching equipment switches mould
Block includes multi-path serial communication channel, and the communication module includes:
Back panel connector；
Optical interface submodule comprising multichannel photo signal channel, the both ends of every road photo signal channel are respectively arranged with light receipts
Bill member, the smooth Transmit-Receive Unit are configured to carry out photoelectric conversion to the light data signal that receives and export and to receiving
Electric data-signal electro-optic conversion and export；
Channel control submodule comprising multiple first serial communication interfaces and multiple second serial communication interfaces, each first
Serial communication interface is connect with every road photo signal channel respectively, and each second serial communication interface passes through the backboard respectively and connects
The connection of the road Jie Qiyumei serial communication channels, the channel control submodule are configured to receive the KVM switching module output
Channel control instruction, and control the first specified serial communication interface of the channel control instruction and the second serial communication interface leads to
Letter connection；
Monitoring submodule is communicated with the channel control submodule, and the monitoring submodule is configured to monitor the channel control
The operating status of system module.
12. a kind of KVM switching equipment, it is characterised in that including described in KVM switching module and any one of claims 1 to 11
Communication module for KVM switching equipment.
13. a kind of KVM switch, it is characterised in that including described in claim 12 KVM switching equipment and multiple distal end light
Terminal, the optical interface submodule of communication module includes MPO optical fiber connector in the KVM switching equipment, the optical interface submodule
The road Kuai Zhongmei photo signal channel is connect with the MPO optical fiber connector respectively；
The KVM switch further includes the first length of fibre of multichannel, the second length of fibre of multichannel and fibre distribution frame, every road
One end of one length of fibre is connect with the MPO optical fiber connector respectively, the other end of every the first length of fibre of road respectively with institute
State a port connection of fibre distribution frame, one end of every the second length of fibre of road respectively with the road the fibre distribution frame Zhong Mei the
The corresponding port connection of one length of fibre, the other end of every the second length of fibre of road are connect with a far-end optical transceiver respectively；
Wherein, the length of second length of fibre is much larger than the length of first length of fibre.
14. a kind of KVM switch, it is characterised in that including described in claim 12 KVM switching equipment and multiple distal end light
Terminal, the optical interface submodule of communication module includes light wavelength division multiplexing in the KVM switching equipment, the optical interface submodule
The road Zhong Mei photo signal channel is connect with the light wavelength division multiplexing respectively；
The KVM switch further includes two-way third length of fibre, the 4th length of fibre of multichannel and optical wavelength division multiplexing equipment, often
One end of road third length of fibre is connect with the light wavelength division multiplexing respectively, the other end of every road third length of fibre respectively with
The optical wavelength division multiplexing equipment connection, one end of every the 4th length of fibre of road are connect with the optical wavelength division multiplexing equipment respectively, often
The other end of the 4th length of fibre of road is connect with a far-end optical transceiver respectively；
The light wavelength division multiplexing is configured to the light data for exporting the optical interface submodule by third length of fibre all the way
Signal is transmitted to the optical wavelength division multiplexing equipment, and receives the optical wavelength division multiplexing equipment by another way third length of fibre
The light data signal received is simultaneously transmitted to the optical interface submodule by the light data signal of output；
Wherein, the length of the third length of fibre is much larger than the length of the 4th length of fibre.
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