CN108337095A - G.fast SFP modules - Google Patents
G.fast SFP modules Download PDFInfo
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- CN108337095A CN108337095A CN201810364971.2A CN201810364971A CN108337095A CN 108337095 A CN108337095 A CN 108337095A CN 201810364971 A CN201810364971 A CN 201810364971A CN 108337095 A CN108337095 A CN 108337095A
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- 238000012545 processing Methods 0.000 claims description 20
- 239000004065 semiconductor Substances 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
- H04L12/2881—IP/Ethernet DSLAM
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
- H04L12/2885—Arrangements interfacing with optical systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/028—Subscriber network interface devices
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Sources (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of G.fast SFP modules, the G.fast SFP modules include：Multiple twin line interface, AFE(analog front end), digital front-end, SFP interfaces, PHY unit and POE interfaces；The analog signal input/output terminal of the AFE(analog front end) is connect with the multiple twin line interface, the digital signal input/output terminal of the AFE(analog front end) is connect with the SERDES digital signal input/output terminals of the digital front-end, the Ethernet digital signal input/output terminal of the SFP interfaces and the PHY unit is connect with the Ethernet digital signal input/output terminal of the digital front-end simultaneously, and the ethernet physical layer signal input/output terminal of the PHY unit is connect with the POE interfaces.SFP G.fast modules of the present invention, can support G.fast technical communications, and have the function of SFP and SFU simultaneously, versatile.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of G.fast SFP modules.
Background technology
With the fast development of network technology, requirement of the user to network transfer speeds is also higher and higher, and network insertion
Technology is used technology on the final stage circuit being connect with user in network, is had to the development of network technology heavy to closing
The meaning wanted.
At present miniaturization SFP modules because its high-performance, low cost and transmission rate are fast the features such as, be widely used in
In Ethernet optic communication or passive optical network communication, SFP modules provide the connection between fiber optic cables and the network switch, but
Existing SFP modules can not be adapted to access copper networks cable interface, in addition, existing SFP modules connect often by SFP interfaces
Enter SFP hosts, to realize the communication with SFP hosts, and can not support single home unit (Single Family Unit, SFU)
Access, limit the application of SFP modules.
Invention content
The embodiment of the present invention proposes a kind of G.fast SFP modules, can be adapted to access copper networks cable interface, support
G.fast technical communications, and have the function of SFP and SFU simultaneously, the function of SFP modules is extended, it is versatile.
An embodiment of the present invention provides a kind of G.fast SFP modules, the G.fast SFP modules include：Twisted-pair feeder connects
Mouth, G.fast processing units, SFP interfaces, PHY unit and POE interfaces；
The G.fast processing units include AFE(analog front end) and digital front-end, and the AFE(analog front end) has analog signal defeated
Enter/output end and digital signal input/output terminal, the digital front-end have SERDES digital signals input/output terminal and with
Too network data signal input/output terminal, the PHY unit have Ethernet digital signal input/output terminal and Ethernet physics
Layer signal input/output terminal；
The analog signal input/output terminal of the AFE(analog front end) is connect with the multiple twin line interface, the AFE(analog front end)
Digital signal input/output terminal is connect with the SERDES digital signal input/output terminals of the digital front-end, the SFP interfaces
It is defeated with the Ethernet digital signal of the digital front-end simultaneously with the Ethernet digital signal input/output terminal of the PHY unit
Enter/output end connection, the ethernet physical layer signal input/output terminal of the PHY unit is connect with the POE interfaces.
Further, the G.fast processing units further include hybrid circuit, and the input of the analog signal of the AFE(analog front end)/
Output end is connect by the hybrid circuit with the multiple twin line interface.
Further, before the digital signal input/output terminal of the AFE(analog front end) is by SERDES buses and the number
The SERDES digital signal input/output terminals at end connect；The SFP interfaces pass through SGMII buses, iic bus and GPIO interface
It is connect with the Ethernet digital signal input/output terminal of the digital front-end；The Ethernet digital signal of the PHY unit is defeated
Enter/output end connect by SGMII buses and SMI interfaces with the Ethernet digital signal input/output terminal of the digital front-end.
Further, the G.fast SFP modules include DC-DC converter and PHY electrical source switch, the DC-DC conversions
The power input of device is connect with the power supply output foot of the POE interfaces, the enabled control terminal of the DC-DC converter and institute
The SFP for stating SFP interfaces is inserted into detection pin connection, the power output end of the DC-DC converter simultaneously at the G.fast
The power input of reason unit is connected with the first connecting pin of the PHY electrical source switch；The power supply output foot of the SFP interfaces
It is connect simultaneously with the first connecting pin of the power input of the G.fast processing units and the PHY electrical source switch；The PHY
The second connection end of power switch is connect with the power input of the PHY unit, the control terminal of the PHY electrical source switch and institute
The SFP for stating SFP interfaces is inserted into detection pin connection；The DC-DC converter enables the level that control terminal receives according to it and believes
Number disability of the control DC-DC converter or work, described in the PHY electrical source switch is controlled according to the level signal of its control terminal
The break-make of first connecting pin and the second connection end；Wherein, when the DC-DC converter disables, first connecting pin
It is off with the second connection end.
Further, the SFP is inserted into the 20th pin VeeT that detection pin is the SFP interfaces.
Further, the PHY electrical source switch includes N-type triode, p-type metal-oxide-semiconductor, first resistor, second resistance and
Three resistance；
The base stage of the N-type triode is the control terminal of the PHY electrical source switch, and the collector of the N-type triode is logical
It crosses the first resistor to connect with the grid of the p-type metal-oxide-semiconductor, the emitter ground connection of the N-type triode；
The source electrode of the p-type metal-oxide-semiconductor is the first connecting pin of the PHY electrical source switch, and the drain electrode of the p-type metal-oxide-semiconductor is
The second connection end of the PHY electrical source switch, the first end of the second resistance is connect with the source electrode of the p-type metal-oxide-semiconductor, described
The second end of second resistance is connect with the grid of the p-type metal-oxide-semiconductor, the first end of the 3rd resistor and the N-type triode
Base stage connection, the second end of the 3rd resistor connect with the second end of the second resistance.
Further, the multiple twin line interface is RJ11 interfaces or RJ12 interfaces.
Further, the POE interfaces are RJ45 interfaces.
Compared with prior art, G.fast SFP modules provided in an embodiment of the present invention, by the way that G.fast signals will be handled
AFE(analog front end) and digital front-end be integrated in small-sized SFP modules so that G.fast SFP modules support G.fast technologies logical
Letter；By designing SFP interfaces and PHY unit and POE interfaces so that the G.fast SFP modules can not only pass through SFP interfaces
SFP hosts are accessed, realize the communication between SFP hosts, POE equipment can also be accessed by POE interfaces, realization is set with POE
Communication between standby so that G.fast SFP modules can be linked into SFP hosts or POE equipment by user according to application scenarios
It realizes communication, overcomes the limitation that existing SFP modules only have access SFP hosts, extend the function of SFP modules, versatility
By force.
Description of the drawings
Fig. 1 is the structural schematic diagram for the G.fast SFP modules that first embodiment of the invention provides.
Fig. 2 is the application note schematic diagram that the G.fast SFP modules that first embodiment of the invention provides access SFP hosts.
Fig. 3 is the application note schematic diagram that the G.fast SFP modules that first embodiment of the invention provides access POE equipment.
Fig. 4 is the structural schematic diagram for the G.fast SFP modules that second embodiment of the invention provides.
Fig. 5 is the structural schematic diagram of PHY electrical source switch described in second embodiment of the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
In embodiments of the present invention, a kind of G.fast SFP modules are provided, the G.fast SFP modules are supported
((Fast access to subscriberTerminals, quickly access user terminal) technical communication can access G.fast
SFP hosts and POE (Power Over Ethernet, active Ethernet) equipment, to realize the terminals such as PC, mobile phone, tablet computer
Communication between equipment and local side.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram for the G.fast SFP modules that first embodiment of the invention provides, it is described
G.fast SFP modules include：Multiple twin line interface 10, G.fast processing units 20, SFP interfaces 30, PHY unit 40 and POE interfaces
50。
The G.fast processing units 20 include hybrid circuit 201, AFE(analog front end) 202 and digital front-end 203.The simulation
There is analog signal input/output terminal a and digital signal input/output terminal b, the digital front-end 203 to have for front end 202
SERDES digital signal input/output terminal c and Ethernet digital signal input/output terminal d, the PHY unit 40 have ether
Network data signal input/output terminal e and ethernet physical layer signal input/output terminal f.
The analog signal input/output terminal a of the AFE(analog front end) 202 passes through hybrid circuit 201 and the multiple twin line interface
The digital signal input/output terminal b of 10 connections, the AFE(analog front end) 202 passes through SERDES buses and the digital front-end 203
SERDES digital signal input/output terminal c connections；The SFP interfaces 30 by SGMII buses, iic bus and GPIO interface with
The Ethernet digital signal input/output terminal d connections of the digital front-end 203, the Ethernet digital signal of the PHY unit 40
The Ethernet digital signal input/output that input/output terminal e passes through SGMII buses and SMI interfaces and the digital front-end 203
Hold d connections；The ethernet physical layer signal input/output terminal f of the PHY unit 40 is connect with the POE interfaces 50.
The AFE(analog front end) 202 is used to the G.fast analog signals that the multiple twin line interface 10 receives being converted to G.fast
The G.fast digital signals that digital front-end 203 transmits are converted to G.fast analog signals by digital signal.
When the SFP interfaces 30 of the G.fast SFP modules access SFP hosts, the digital front-end 203 is used for institute
The G.fast digital signals that AFE(analog front end) 202 transmits are stated to be converted to Ethernet digital signal or transmit the SFP interfaces
The Ethernet digital signal conversion G.fast digital signals to come over, to realize the number between G.fast SFP modules and SFP hosts
According to communication.
When the POE interfaces 50 of the G.fast SFP modules access POE equipment, the digital front-end 203 is used for institute
The G.fast digital signals that AFE(analog front end) 202 transmits are stated to be converted to Ethernet digital signal or pass the PHY unit 40
The defeated Ethernet digital signal to come is converted to G.fast digital signals；The PHY unit 40 from digital front-end 203 for that will pass
The Ethernet that the defeated Ethernet digital signal to come is converted to ethernet physical layer digital signal or transmits POE interfaces 50
Physical layer digital signal is converted to Ethernet digital signal, to realize that the data between G.fast SFP modules and POE equipment are logical
Letter.
In the present embodiment, the Ethernet digital signal be Ethernet bearing binary-coded signal, it is described with
Too net physical layer signal is the signal of the Ethernet coding of Ethernet bearing.
In the present embodiment, the multiple twin line interface 10 is RJ11 interfaces or RJ12 interfaces, and the POE interfaces 50 are RJ45
Interface.
Referring to Fig. 2, accessing the application note of SFP hosts for the G.fast SFP modules that first embodiment of the invention provides
Schematic diagram.
The multiple twin line interface 10 of the G.fast SFP modules is connect by telephone wire with local side (DPU), terminal device
(equipment such as PC, tablet computer, mobile phone) are connect by cable or WLAN with SFP hosts.As the G.fast SFP
When the SFP interfaces 30 of module access SFP hosts, you can realize that the communication between terminal device and local side, communication data flow direction are：
Terminal device<--->SFP hosts<--->G.fast SFP modules<--->Local side.
Referring to Fig. 3, accessing the application note of POE equipment for the G.fast SFP modules that first embodiment of the invention provides
Schematic diagram.
The multiple twin line interface 10 of the G.fast SFP modules is connect by telephone wire with local side (DPU), terminal device
(equipment such as PC, tablet computer, mobile phone) are connect by cable or WLAN with POE equipment.As the G.fast SFP
When the POE interfaces 50 of module access POE equipment, you can realize that the communication between terminal device and local side, communication data flow direction are：
Terminal device<--->POE equipment<--->G.fast SFP modules<--->Local side.
Compared with prior art, G.fast SFP modules provided in an embodiment of the present invention, by by G.fast processing units
20 are integrated in small-sized SFP modules so that G.fast SFP modules support G.fast technical communications；By designing SFP interfaces
30 and PHY unit 40 and POE interfaces 50 so that the G.fast SFP modules can not only pass through SFP interfaces 30 and access SFP master
Machine, realization communicate with the data between SFP hosts, can also by POE interfaces 50 access POE equipment, realize and POE equipment it
Between data communication so that G.fast SFP modules can be linked into SFP hosts or POE equipment by user according to application scenarios
It realizes communication, overcomes the limitation that existing SFP modules only have access SFP hosts, extend the function of SFP modules, versatility
By force.
Please refer to the structural schematic diagram that Fig. 4 is the G.fast SFP modules that second embodiment of the invention provides.
The present embodiment and first embodiment difference lies in：G.fast SFP modules further include DC-DC described in the present embodiment
Converter 60 and PHY electrical source switch 70.
The power input of the DC-DC converter 60 is connect with the power supply output foot of the POE interfaces 50, described
The enabled control terminal of DC-DC converter 60 is inserted into detection pin with the SFP of the SFP interfaces 30 and is connect, the DC-DC converter
60 power output end simultaneously with the power input of the G.fast processing units 20 and the PHY electrical source switch 70 first
Connecting pin connects.The power supply output feet of the SFP interfaces 30 simultaneously with the G.fast processing units 20 and the PHY electrical source
First connecting pin of switch 70 connects, with the AFE(analog front end) and number front-end power to the G.fast processing units 20.It is described
The second connection end of PHY electrical source switch 70 is connect with the power input of the PHY unit 40, the PHY electrical source switch 70
Control terminal is inserted into detection pin with the SFP of the SFP interfaces 30 and is connect.The DC-DC converter is according to its enabled control termination
The level signal received controls the DC-DC converter disability or work；The PHY electrical source switch 70 is according to the electricity of its control terminal
Ordinary mail number controls the break-make of first connecting pin and the second connection end.When the enabled control of the DC-DC converter 60
It is low level to terminate the signal received, controls the disability of the DC-DC converter 60 so that the DC-DC converter does not work；When
When the signal that the control terminal of the PHY electrical source switch 70 receives is low level, first connecting pin and described second is controlled
Connecting pin disconnects, that is, cuts off the power supply of the PHY unit 40 so that the PHY unit 40 does not work.
In the present embodiment, when the POE interfaces 50 of G.fast SFP modules access POE equipment, the POE equipment provides
Power supply output foot and the DC-DC converter 60 of the voltage through the POE interfaces 50, be converted to the voltage output of 3.3V,
To give the PHY unit 40 and G.fast processing units 20 to power, the SFU functions of G.fast SFP modules are realized.Work as G.fast
When the SFP interfaces 30 of SFP modules access SFP hosts, the level that the SFP is inserted into detection pin is low level, and the DC-DC turns
The enabled control terminal of parallel operation 60 receives the low level, controls the disability of the DC-DC converter 60 so that the DC-DC conversions
Device does not work, meanwhile, the control terminal of the PHY electrical source switch 70 also receives the low level, control first connecting pin with
The second connection end disconnects, and cuts off the power supply of the PHY unit so that the power output end of the DC-DC converter 60 and
The power supply output foot of the SFP interfaces 30 cannot give the PHY unit 40 to power, can only be by SFP hosts to described
Hybrid circuit, AFE(analog front end) and the digital front-end of G.fast processing units provide the voltage of 3.3V, to realize G.fast SFP moulds
The SFP functions of block.When the POE interfaces 50 of G.fast SFP modules access POE equipment, while the access SFP hosts of SFP interfaces 30
When, the control terminal of the enabled control terminal of the DC-DC converter 60 and the PHY electrical source switch 70 will receive low level, from
And the first connecting pin for controlling the disability of the DC-DC converter 60 and the PHY electrical source switch 70 is disconnected with second connection end, is made
The power supply output foot of the power output end and the SFP interfaces 30 that obtain the DC-DC converter 60 cannot give the PHY mono-
Member 40 is powered, and the DC-DC converter 60 can not also give the G.fast processing units 20 to power, to realize G.fast
The SFP functions of SFP modules, effectively prevent signal cross-talk.
As shown in figure 5, for the structural schematic diagram of PHY electrical source switch 70 described in second embodiment of the invention.The PHY electrical source
Switch 70 includes N-type triode 701, p-type metal-oxide-semiconductor 702, first resistor 703, second resistance 704 and 3rd resistor 705.
The base stage of the N-type triode 701 is the control terminal of the PHY electrical source switch 70, the N-type triode 701
Collector connect with the grid of the p-type metal-oxide-semiconductor 702 by the first resistor 703, the transmitting of the N-type triode 701
Pole is grounded.
The source electrode of the p-type metal-oxide-semiconductor 702 is the first connecting pin of the PHY electrical source switch 70, the p-type metal-oxide-semiconductor 702
Drain electrode be the PHY electrical source switch 70 second connection end, the first end of the second resistance 704 and the p-type metal-oxide-semiconductor
702 source electrode connection, the second end of the second resistance 704 are connect with the grid of the p-type metal-oxide-semiconductor 702, the 3rd resistor
705 first end is connect with the base stage of the N-type triode 701, the second end of the 3rd resistor 705 and the second resistance
704 second end connection.
In the present embodiment, the SFP is inserted into the 20th pin VeeT that detection pin is the SFP interfaces 30, when described
When SFP interfaces 30 access SFP hosts, the 20th pin VeeT of the SFP interfaces 30 exports low level.
When the SFP interfaces 30 of the G.fast SFP modules access SFP hosts, 30 the 20th pins of the SFP interfaces
VeeT will export low level, i.e. the base stage of the N-type triode 601 of the PHY electrical source switch 70 is low level, at this point, three pole of N-type
Pipe 601 disconnects, and the grid of p-type metal-oxide-semiconductor is high level so that the source electrode of p-type metal-oxide-semiconductor is disconnected with drain electrode, that is, has been cut off described
The power supply of PHY unit 40 so that the PHY unit 40 does not work.In addition, the enabled control terminal of the DC-DC converter also connects
Receive the low level of 30 the 20th pin VeeT outputs of the SFP interfaces so that the DC-DC converter does not work, i.e., can only
By SFP hosts to the hybrid circuit of the G.fast processing units, AFE(analog front end) and digital front-end power.
That is, the SFP interfaces 30 when the G.fast SFP modules access SFP hosts, and the POE interfaces 50 connect
When entering POE equipment, the DC-DC converter disability, the PHY electrical source switch 70 disconnects, to cut off the PHY unit 40
Power supply so that the PHY unit 40 does not work, and ensure that in the G.fast SFP modules while accessing SFP hosts and POE is set
When standby, the G.fast SFP modules are preferentially communicated with SFP hosts.
Compared with prior art, G.fast SFP modules provided in an embodiment of the present invention, by by G.fast processing units
20 are integrated in small-sized SFP modules so that G.fast SFP modules support G.fast technical communications；By designing SFP interfaces
30 and PHY unit 40 and POE interfaces 50 so that the G.fast SFP modules can not only pass through SFP interfaces 30 and access SFP master
Machine realizes the communication between SFP hosts, can also access POE equipment by POE interfaces 50, realize between POE equipment
Communication so that G.fast SFP modules can be linked into SFP hosts or POE equipment according to application scenarios and realize communication by user,
The limitation that existing SFP modules only have access SFP hosts is overcome, the function of SFP modules is extended, it is versatile, and work as institute
When stating G.fast SFP modules while accessing SFP hosts and POE equipment, it can preferentially select to be communicated with the SFP hosts, it is real
The validity now communicated, prevents signal cross-talk.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of G.fast SFP modules, which is characterized in that the G.fast SFP modules include：Multiple twin line interface, G.fast
Processing unit, SFP interfaces, PHY unit and POE interfaces；
The G.fast processing units include AFE(analog front end) and digital front-end, and the AFE(analog front end) has analog signal input/defeated
Outlet and digital signal input/output terminal, the digital front-end have SERDES digital signals input/output terminal and ether netting index
Word signal input/output terminal, the PHY unit have Ethernet digital signal input/output terminal and ethernet physical layer signal
Input/output terminal；
The analog signal input/output terminal of the AFE(analog front end) is connect with the multiple twin line interface, the number of the AFE(analog front end)
Signal input/output terminal is connect with the SERDES digital signal input/output terminals of the digital front-end, the SFP interfaces and institute
State the Ethernet digital signal input/output terminal of PHY unit simultaneously with the Ethernet digital signal of digital front-end input/defeated
Outlet connects, and the ethernet physical layer signal input/output terminal of the PHY unit is connect with the POE interfaces.
2. G.fast SFP modules according to claim 1, it is characterised in that：The G.fast processing units further include mixing
Circuit is closed, the analog signal input/output terminal of the AFE(analog front end) is connect by the hybrid circuit with the multiple twin line interface.
3. G.fast SFP modules according to claim 1, it is characterised in that：The digital signal of the AFE(analog front end) is defeated
Enter/output end connect by SERDES buses with the SERDES digital signal input/output terminals of the digital front-end；The SFP
The Ethernet digital signal input/output terminal that interface passes through SGMII buses, iic bus and GPIO interface and the digital front-end
Connection；Before the Ethernet digital signal input/output terminal of the PHY unit is by SGMII buses and SMI interfaces and the number
The Ethernet digital signal input/output terminal at end connects.
4. G.fast SFP modules according to claim 1, it is characterised in that：The G.fast SFP modules include DC-
DC converters and PHY electrical source switch, the power supply output foot of the power input of the DC-DC converter and the POE interfaces
Connection, the enabled control terminal of the DC-DC converter are inserted into detection pin with the SFP of the SFP interfaces and are connect, the DC-DC
The power output end of converter simultaneously with the power input of the G.fast processing units and the PHY electrical source switch first
Connecting pin connects；The power supply output foot of the SFP interfaces while the power input with the G.fast processing units and institute
State the first connecting pin connection of PHY electrical source switch；The power supply of the second connection end and the PHY unit of the PHY electrical source switch
Input terminal connects, and the control terminal of the PHY electrical source switch is inserted into detection pin with the SFP of the SFP interfaces and is connect；The DC-
DC converters enable the level signal that control terminal receives according to it and control the DC-DC converter disability or work, the PHY
Power switch controls the break-make of first connecting pin and the second connection end according to the level signal of its control terminal；Wherein,
When the DC-DC converter disables, first connecting pin is off with the second connection end.
5. G.fast SFP modules according to claim 4, it is characterised in that：It is described that the SFP, which is inserted into detection pin,
20th pin VeeT of SFP interfaces.
6. G.fast SFP modules according to claim 4, it is characterised in that：
The PHY electrical source switch includes N-type triode, p-type metal-oxide-semiconductor, first resistor, second resistance and 3rd resistor；
The base stage of the N-type triode is the control terminal of the PHY electrical source switch, and the collector of the N-type triode passes through institute
It states first resistor to connect with the grid of the p-type metal-oxide-semiconductor, the emitter ground connection of the N-type triode；
The source electrode of the p-type metal-oxide-semiconductor is the first connecting pin of the PHY electrical source switch, and the drain electrode of the p-type metal-oxide-semiconductor is described
The second connection end of PHY electrical source switch, the first end of the second resistance are connect with the source electrode of the p-type metal-oxide-semiconductor, and described second
The second end of resistance is connect with the grid of the p-type metal-oxide-semiconductor, the base of the first end of the 3rd resistor and the N-type triode
Pole connects, and the second end of the 3rd resistor is connect with the second end of the second resistance.
7. G.fast SFP modules according to claim 1, it is characterised in that：The multiple twin line interface be RJ11 interfaces or
RJ12 interfaces.
8. G.fast SFP modules according to claim 1, it is characterised in that：The POE interfaces are RJ45 interfaces.
Priority Applications (1)
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