WO2015117314A1 - Sfp模块 - Google Patents

Sfp模块 Download PDF

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Publication number
WO2015117314A1
WO2015117314A1 PCT/CN2014/086548 CN2014086548W WO2015117314A1 WO 2015117314 A1 WO2015117314 A1 WO 2015117314A1 CN 2014086548 W CN2014086548 W CN 2014086548W WO 2015117314 A1 WO2015117314 A1 WO 2015117314A1
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WIPO (PCT)
Prior art keywords
sfp
twisted pair
interface
module
access
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PCT/CN2014/086548
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English (en)
French (fr)
Inventor
张海军
董伟杰
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ZTE Corp
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ZTE Corp
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Priority to PL14881486T priority Critical patent/PL3174168T3/pl
Priority to EP14881486.6A priority patent/EP3174168B1/en
Publication of WO2015117314A1 publication Critical patent/WO2015117314A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42676—Internal components of the client ; Characteristics thereof for modulating an analogue carrier signal to encode digital information or demodulating it to decode digital information, e.g. ADSL or cable modem
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0421—Circuit arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H04L2012/6478—Digital subscriber line, e.g. DSL, ADSL, HDSL, XDSL, VDSL

Definitions

  • the utility model relates to the field of communication, in particular to a small form factor pluggable (SFP) module.
  • SFP small form factor pluggable
  • SFP devices/modules are widely used in Ethernet optical communication or passive optical network communication, but sometimes the communication medium does not have fiber conditions, only twisted pair, five types of lines, etc.
  • Line media there are only SFP modules with five types of line interfaces (usually RJ45) and no SFP modules with twisted pair interfaces. Therefore, there should be a large market demand for SFP modules with twisted pair interfaces.
  • the SFP module of the Category 5 line interface is essentially an ordinary Ethernet interface.
  • an Ethernet physical layer Physical Layer, PHY for short
  • an associated isolation transformer are usually added between the RJ45 and the SFP interface. It involves the control and management of signals.
  • the implementation scheme has not yet been proposed.
  • the utility model provides an SFP module to solve at least the problem of the SFP module without the twisted pair interface in the related art.
  • a miniaturized pluggable (SFP) module including: at least one twisted pair interface disposed to be connected to a twisted pair signal line; and a twisted pair access module, And connecting to the at least one twisted pair interface, configured to convert the bearer data in the twisted pair signal line with the bearer data of the Ethernet; and the SFP or SFP+ interface is connected to the twisted pair access module, Set to connect to an SFP slot or jack.
  • SFP miniaturized pluggable
  • the twisted pair access module includes: an analog front end (AFE) connected to the at least one twisted pair interface, configured to sample the bearer data in the twisted pair signal line from an analog signal into a digital signal; a signal processor (DSP) connected to the AFE, configured to extract a payload in the digital signal; a twisted pair access processor (CPU) connected to the DSP and configured to be connected through a twisted pair
  • AFE analog front end
  • DSP signal processor
  • CPU twisted pair access processor
  • the twisted pair access technology includes one of the following: asymmetric digital subscriber loop (ADSL), ultra high speed digital subscriber loop (VDSL), fast access user terminal (G.fast), home interconnection (G.hn) ), Home Phone Line Networking Protocol (HPNA).
  • ADSL asymmetric digital subscriber loop
  • VDSL ultra high speed digital subscriber loop
  • G.fast fast access user terminal
  • G.hn home interconnection
  • HPNA Home Phone Line Networking Protocol
  • the twisted pair access module further includes: a 1588 time synchronization module connected to the DSP and the twisted pair access CPU, configured to extract time information; the twisted pair access CPU is further set according to the time The information encapsulates the payload into the 1588 PTP protocol.
  • the interface of the twisted pair signal line is an interface including a two-core signal pin.
  • the interface of the twisted pair signal line is RJ11 or RJ12.
  • the SFP or SFP+ interface is a Serdes interface.
  • the SFP module further includes: a Serdes conversion physical layer (PHY) connected to the Serdes interface and the twisted pair access module, and configured to store the bearer data of the Ethernet output by the twisted pair access module The Serdes format data is converted.
  • PHY Serdes conversion physical layer
  • the SFP or SFP+ interface includes a power pin and a power down alarm digital pin.
  • the SFP or SFP+ interface includes Serdes differential signals TD+/TD- and RD+/RD-.
  • the SFP or SFP+ interface contains a 1PPS or ToD pin.
  • the utility model adopts an SFP module, comprising: at least one twisted pair interface, which is connected to the twisted pair signal line; the twisted pair access module is connected with the at least one twisted pair interface, and is set To convert the bearer data in the twisted pair signal line with the bearer data of the Ethernet; the SFP or SFP+ interface is connected to the twisted pair access module, and is configured to be connected to the SFP slot or the socket to solve
  • SFP module of the twisted pair interface does not exist in the related art expands the use field of the SFP module and is convenient for the user.
  • FIG. 1 is a block diagram showing the structure of an SFP module according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an application description of a general SFP module according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic diagram of an application of a conventional SFP module after a twisted pair interface modification according to a preferred embodiment of the present invention
  • FIG. 4 is a schematic diagram of a CPE type twisted pair interface SFP module applied to a CPE or a base station as an Ethernet access according to a preferred embodiment of the present invention
  • FIG. 5 is a schematic diagram of a CO-type twisted pair interface SFP module applied to an Ethernet downlink product as a DSL office end according to a preferred embodiment of the present invention
  • FIG. 6 is a schematic diagram of a copper wire technology and an Ethernet technology conversion using a twisted pair interface SFP module in a copper wire medium in an Ethernet interconnection scenario according to a preferred embodiment of the present invention
  • FIG. 7 is a schematic diagram showing the workflow of a CPE type twisted pair SFP module according to a preferred embodiment of the present invention.
  • an SFP module is provided, which can be applied to a twisted pair interface.
  • the SFP module of the twisted pair interface is not a simple analog-to-digital signal conversion, but may be an asymmetric digital subscriber loop (Asymmetric).
  • the SFP module includes twisted pair Signal analog/digital-to-analog conversion, signal sampling, codec and Ethernet data encapsulation, including the control layer of the physical layer of the twisted pair technology and the Media Access Control (MAC) layer.
  • MAC Media Access Control
  • FIG. 1 is a structural block diagram of an SFP module according to an embodiment of the present invention. As shown in FIG. 1 , the SFP module includes:
  • At least one twisted pair interface 12 is disposed to be connected to the twisted pair signal line; the twisted pair access module 14 is connected to the at least one twisted pair interface 12, and is disposed to be in the twisted pair signal line
  • the bearer data is converted with the bearer data of the Ethernet; the SFP or SFP+ interface 16 is connected to the twisted pair access module 14 and is configured to be connected to the SFP slot or the jack.
  • the SFP module is used to convert the data connected between the twisted pair interface and the SFP or SFP+ interface by using the twisted pair access module, thereby implementing the SFP module including the twisted pair interface, and solving the related art.
  • the problem of the SFP module without the twisted pair interface expands the use of the SFP module and is convenient for the user.
  • the twisted pair access module 14 may include an analog front end (AFE) connected to the at least one twisted pair interface and configured to be in the twisted pair signal line.
  • AFE analog front end
  • the bearer data is sampled by the analog signal as a digital signal
  • a digital signal processor Digital Singnal Processor, DSP for short
  • DSP Digital Singnal Processor
  • the CPU is coupled to the DSP and configured to encapsulate the decoded payload into an Ethernet packet by a twisted pair access technology.
  • the Ethernet packet payload can be sent to the DSP for encoding by the CPU, then converted to an analog signal by the AFE, and finally sent out through the twisted pair interface.
  • the twisted pair access technology may include but is not limited to one of the following: ADSL, VDSL, G.fast, G.hn, HPNA.
  • the twisted pair access module may further include a 1588 time synchronization module, which is connected to the DSP and the twisted pair access CPU, and is configured to extract time information; the twisted pair access CPU is further configured according to The time information encapsulates the payload into a 1588 PTP protocol.
  • a 1588 time synchronization module which is connected to the DSP and the twisted pair access CPU, and is configured to extract time information; the twisted pair access CPU is further configured according to The time information encapsulates the payload into a 1588 PTP protocol.
  • the interface of the twisted pair signal line may be an interface including a two-core signal pin.
  • it may be an interface in the form of RJ11 or RJ12, and the number of interfaces is at least one interface.
  • the SFP or SFP+ interface may be a SFP interface-compatible serializer/deserializer (Serdes) interface.
  • Serdes serializer/deserializer
  • the SFP module may further include: a Serdes conversion physical layer (PHY), and the Serdes
  • PHY Serdes conversion physical layer
  • the interface is connected to the twisted pair access module, and is configured to convert the bearer data of the Ethernet outputted by the twisted pair access module with the Serdes format data.
  • the SFP or SFP+ interface may include a power pin and a power down alarm digital pin. And/or, the SFP or SFP+ interface may also include Serdes differential signaling data: TD+/TD-(Transmit Data, where ⁇ indicates signal level) and received data: RD+/RD-(Receive Data, where ⁇ indicates signal Level).
  • the SFP or SFP+ interface may also include a 1PPS (Pluse per Sencond) or ToD (Time of Day) pin.
  • an SFP module and system for a twisted pair interface including: an SFP or SFP+ electrical interface; at least one twisted pair electrical interface, RJ11 or RJ12 or other at least two core data lines. ; realizes the conversion of data from twisted pair technology to Ethernet data; and supports time synchronization.
  • the SFP module of the twisted pair interface includes: an SFP or SFP+ electrical interface; at least one twisted pair electrical interface, RJ11 or RJ12 or other two-core signal line form; and the module implements the twisted pair technology. Transmitting data to Ethernet data; supporting time synchronization;
  • the SFP module can be inserted into an SFP interface cage having a mechanical size conforming to the standard requirements of INF-8074i and SFF-8431, and can work normally.
  • the twisted pair electrical interface includes: the twisted pair interface is in the form of RJ11 or RJ12, or other electrical interface forms including two core data lines, and the number of interfaces is at least one way.
  • the SFP interface includes: a power pin and a power failure alarm digital pin.
  • the SFP interface includes: Serdes pins TD+/TD- (transmit data) and RD+/RD (receive data).
  • the SFP interface comprises: a 1PPS or ToD clock output pin.
  • the SFP module internally includes: an AFE module, a DSP module, and a processor module.
  • the module implements mutual conversion from the data carried by the twisted pair technology to the data carried by the Ethernet.
  • the conversion technology includes: the twisted pair access technology is not limited to ADSL, VDSL, G.fast, G.hn, HPNA, etc. network.
  • the time synchronization interface includes: a 1588 PTP message can be output.
  • the SFP module of the twisted pair interface and the system thereof are provided by the preferred embodiment, and the SFP module realizes the copper wire access on the SFP slot/interface, which can meet the requirement of the SFP interface to adapt the twisted pair medium communication access, and solves the problem.
  • the problem that the optical cable SFP module cannot be used is not in place.
  • FIG. 2 is a schematic diagram of an application of a common SFP module according to a preferred embodiment of the present invention, that is, a master device having an SFP interface, and an Ethernet SFP module can be normally operated after being plugged in.
  • FIG. 3 is a schematic diagram of an application of a common SFP module after a twisted pair interface modification according to a preferred embodiment of the present invention.
  • the optical fiber medium of the ordinary SFP module in FIG. 2 is changed to a twisted pair medium, and the external interface is light.
  • the port becomes an electrical port, which can be in the form of RJ11 or RJ12, or other interface form including two-core signal pins; after changing the medium, the original photoelectric conversion module will be replaced by other modules, and the replaceable modules are not limited to Copper wire access technology: such as ADSL, VDSL, G.fast or G.hn, these modules include analog front-end part, digital processing part, and management part, the final output serdes interface, compatible with SFP interface, and can extract clock information Output 1PPS+ToD pin or output 1588 PTP message.
  • FIG. 4 is a schematic diagram of a Customer Premise Equipment (CPE) type twisted pair interface SFP module applied to a CPE or a base station as an Ethernet access according to a preferred embodiment of the present invention.
  • CPE Customer Premise Equipment
  • FIG. 5 is a schematic diagram of a center office (CO) twisted pair interface SFP module applied to an Ethernet downlink product as a DSL office end according to a preferred embodiment of the present invention.
  • CO center office
  • FIG. 6 is a schematic diagram showing the conversion of copper wire technology and Ethernet technology by using a twisted pair interface SFP module in a copper wire medium in an Ethernet interconnection scenario according to a preferred embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing the working process of a CPE type twisted pair SFP module according to a preferred embodiment of the present invention. As shown in FIG. 7, the working process of the CPE type twisted pair SFP module is as follows:
  • the master device supplies power to the SFP module, and the SFP module initializes the entire device, and completes interaction identification with the peer physical layer handshake.
  • the twisted pair carries the access data.
  • the analog front end AFE samples the analog signal as a digital signal, and sends the analog signal to the DSP module in the next step S706.
  • the DSP processes, and extracts the payload according to different protocols.
  • S708 exists when time extraction is required, and the time signal is extracted by a special protocol, and the 1PPS+ToD signal can be directly output. Enter the time information into the 1588 master module.
  • step S710 extracting the payload from the step S706, performing Ethernet encapsulation, and if 1588 time transfer is required, the 1588 PTP protocol encapsulation may also be performed according to the time input of S708. After this step is completed, it is an Ethernet packet, which is output to the SFP serdes interface for receiving by the master device.
  • the mutual conversion of copper wire technology (DSL, G.fast, G.hn, HPNA) and Ethernet is solved, and the twisted pair access can be quickly realized without the optical cable.
  • modules or steps of the above preferred embodiment are not limited to a certain copper wire technology, and may also be multiple twisted pair interfaces for load sharing or link aggregation.
  • an SFP module provided by an embodiment of the present invention has the following beneficial effects: the field of use of the SFP module is expanded, and the user is convenient to use.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

一种SFP模块，包括：至少一个双绞线接口（12），设置为与双绞线信号线相连接；双绞线接入模块（14），与至少一个双绞线接口相连，设置为将双绞线信号线中的承载数据与以太网的承载数据进行转换；SFP或SFP+接口（16），与双绞线接入模块相连，设置为与SFP插槽或插口相连接。解决了相关技术中不存在双绞线接口的SFP模块的问题，扩展了SFP模块的使用领域，方便了用户使用。

Description

SFP模块 技术领域
本实用新型涉及通信领域，具体而言，涉及一种小型化可插拔(Small form factor Pluggable，简称为SFP)模块。
背景技术
在通信接入领域，SFP装置/模块(以下称模块)广泛应用于以太网光通信或无源光网络通信中，但有时通信介质尚不具备光纤条件，只有双绞线、五类线等铜线介质，目前市面上只有五类线接口(通常是RJ45)的SFP模块而无双绞线接口的SFP模块，因此双绞线接口的SFP模块应该存在有较大的市场需求。五类线接口的SFP模块本质上就是普通以太网的接口，在该SFP模块内部通常是在RJ45和SFP接口之间增加以太网物理层(Physical Layer，简称为PHY)和相关的隔离变压器，不涉及信号的控制以及管理。而对于双绞线接口的SFP模块，目前尚未提出其实现方案。
针对相关技术中不存在双绞线接口的SFP模块的问题，目前尚未提出有效的解决方案。
实用新型内容
本实用新型提供了一种SFP模块，以至少解决相关技术中不存在双绞线接口的SFP模块的问题。
根据本实用新型的一个实施例，提供了一种小型化可插拔(SFP)模块，包括：至少一个双绞线接口，设置为与双绞线信号线相连接；双绞线接入模块，与所述至少一个双绞线接口相连，设置为将所述双绞线信号线中的承载数据与以太网的承载数据进行转换；SFP或SFP+接口，与所述双绞线接入模块相连，设置为与SFP插槽或插口相连接。
所述双绞线接入模块包括：模拟前端(AFE)，与所述至少一个双绞线接口相连，设置为将所述双绞线信号线中的承载数据由模拟信号采样为数字信号；数字信号处理器(DSP)，与所述AFE相连，设置为在所述数字信号中提取有效载荷；双绞线接入处理器(CPU)，与所述DSP相连，设置为通过双绞线接入技术将所述有效载荷封装为以太网数据包。
所述双绞线接入技术包括以下之一：非对称数字用户环路(ADSL)，超高速数字用户环路(VDSL)，快速接入用户终端(G.fast)，家庭互联(G.hn)，家居电话线联网协议(HPNA)。
所述双绞线接入模块还包括：1588时间同步模块，与所述DSP和双绞线接入CPU相连，设置为提取时间信息；所述双绞线接入CPU还设置为根据所述时间信息将所述有效载荷进行1588 PTP协议的封装。
所述双绞线信号线的接口为包含两芯信号管脚的接口。
所述双绞线信号线的接口为RJ11或RJ12。
所述SFP或SFP+接口为Serdes接口。
所述SFP模块还包括：Serdes转换物理层(PHY)，与所述Serdes接口和所述双绞线接入模块相连，设置为将所述双绞线接入模块输出的以太网的承载数据与Serdes格式数据进行转换。
所述SFP或SFP+接口包含电源引脚以及断电告警数字引脚。
所述SFP或SFP+接口包含Serdes差分信号TD+/TD-和RD+/RD-。
所述SFP或SFP+接口包含1PPS或ToD引脚。
通过本实用新型，采用一种SFP模块，包括：至少一个双绞线接口，设置为与双绞线信号线相连接；双绞线接入模块，与所述至少一个双绞线接口相连，设置为将所述双绞线信号线中的承载数据与以太网的承载数据进行转换；SFP或SFP+接口，与所述双绞线接入模块相连，设置为与SFP插槽或插口相连接，解决了相关技术中不存在双绞线接口的SFP模块的问题，扩展了SFP模块的使用领域，方便了用户使用。
附图说明
此处所说明的附图用来提供对本实用新型的进一步理解，构成本申请的一部分，本实用新型的示意性实施例及其说明用于解释本实用新型，并不构成对本实用新型的不当限定。在附图中：
图1是根据本实用新型实施例的SFP模块的结构框图；
图2是根据本实用新型优选实施例的普通SFP模块应用说明示意图；
图3是根据本实用新型优选实施例的是普通SFP模块进行了双绞线接口改造后的的应用说明示意图；
图4是根据本实用新型优选实施例的CPE型双绞线接口SFP模块应用在CPE上或者基站上作为以太网接入的示意图；
图5是根据本实用新型优选实施例的CO型双绞线接口SFP模块应用在以太网下行的产品上作为DSL局端的示意图；
图6是根据本实用新型优选实施例的在铜线介质进行以太网互联场景下，局端和终端分别使用了双绞线接口SFP模块进行了铜线技术和以太网技术转换的示意图；
图7是根据本实用新型优选实施例的CPE型双绞线SFP模块的工作流程示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本实用新型。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中，提供了一种SFP模块，可以应用于双绞线接口，所述的双绞线接口的SFP模块，不是简单的模数信号转换，而可能是非对称数字用户环路(Asymmetric Digital Subscriber Line，简称为ADSL)，超高速数字用户环路(Very-high-bit-rate Digital Subscriber Line，简称为VDSL)，快速接入用户终端(Fast access to subscriber terminals，简称为G.fast)，家庭互联(Home Networking，简称为G.hn)，家居电话线联网协议(Home Phoneline Networking Agreement，简称为HPNA)等某一种宽带技术到以太网的转换，该SFP模块中包含了双绞线信号的模数/数模转换、信号采样，编解码以及以太网数据封装，还包含了双绞线技术物理层和媒体接入控制(Media Access Control，简称为MAC)层的控制管理，本实施例弥补了双绞线在SFP接口方面的应用，应用便捷、广泛。
本实施例提供了一种SFP模块，图1是根据本实用新型实施例的SFP模块的结构框图，如图1所示，该SFP模块包括：
至少一个双绞线接口12，设置为与双绞线信号线相连接；双绞线接入模块14，与所述至少一个双绞线接口12相连，设置为将所述双绞线信号线中的承载数据与以太网的承载数据进行转换；SFP或SFP+接口16，与所述双绞线接入模块14相连，设置为与SFP插槽或插口相连接。
本实施例通过上述SFP模块，使用双绞线接入模块将双绞线接口和SFP或SFP+接口接入的数据进行相互转换，从而实现了包含双绞线接口的SFP模块，解决了相关技术中不存在双绞线接口的SFP模块的问题，扩展了SFP模块的使用领域，方便了用户使用。
优选地，所述双绞线接入模块14可以包括：模拟前端(Analog Front End，简称为AFE)，与所述至少一个双绞线接口相连，设置为将所述双绞线信号线中的承载数据由模拟信号采样为数字信号；数字信号处理器(Digital Singnal Processor，简称为DSP)，与所述AFE相连，设置为在所述数字信号中进行解码处理；双绞线接入处理器(CPU)，与所述DSP相连，设置为通过双绞线接入技术将所述解码后的有效载荷封装为以太网数据包。当然，对于从SFP接口发来的数据，则可以先由CPU将以太网数据包有效载荷送至DSP进行编码，然后通过AFE转换为模拟信号，最后通过双绞线接口发出。
优选地，所述双绞线接入技术可以包括但不限于以下之一：ADSL，VDSL，G.fast，G.hn，HPNA。
优选地，所述双绞线接入模块还可以包括1588时间同步模块，与所述DSP和双绞线接入CPU相连，设置为提取时间信息；所述双绞线接入CPU还设置为根据所述时间信息将所述有效载荷进行1588 PTP协议的封装。
优选地，所述双绞线信号线的接口可以为包含两芯信号管脚的接口。例如，可以为RJ11或RJ12形式的接口，接口数量为至少一个接口。
优选地，所述SFP或SFP+接口可以为兼容SFP接口的串行器/解串器(SERializer/DESerializer，简称为Serdes)接口。
优选地，考虑到从双绞线接入模块中输出的信号可能并不一定是SFP所兼容的信号格式，因此，所述SFP模块还可以包括：Serdes转换物理层(PHY)，与所述Serdes接口和所述双绞线接入模块相连，设置为将所述双绞线接入模块输出的以太网的承载数据与Serdes格式数据进行转换。
优选地，所述SFP或SFP+接口可以包含电源引脚以及断电告警数字引脚。和/或，所述SFP或SFP+接口也可以包含Serdes差分信号发送数据：TD+/TD-(Transmit Data，其中±表示信号电平)和接收数据：RD+/RD-(Receive Data，其中±表示信号电平)。所述SFP或SFP+接口还可以包含1PPS(Pluse per Sencond)或ToD(Time of Day)引脚。
下面结合优选实施例进行说明，以下优选实施例结合了上述实施例及其优选实施方式。
在以下优选实施例中，提供了一种双绞线接口的SFP模块及系统，包括：一个SFP或SFP+电接口；至少一个双绞线电接口，RJ11或RJ12或其他至少包含两芯数据线形态；实现了从双绞线技术承载数据到以太网数据互相转换；并可支持时间同步。通过本优选实施例的方案，解决了SFP接口在光纤不到位只有双绞线介质的情况下的快速接入问题。
以下优选实施例提供的双绞线接口的SFP模块，包括：一个SFP或SFP+电接口；至少一个双绞线电接口，RJ11或RJ12或其他两芯信号线形态；模块实现了从双绞线技术承载数据到以太网数据的互相转换；可支持时间同步功能；
优选地：所述SFP模块可插入机械尺寸符合INF-8074i和SFF-8431的标准要求的SFP接口插笼，并可正常工作。
优选地，所述双绞线电接口包括：双绞线接口为RJ11或RJ12形态，或者包含两芯数据线的其他电接口形态，接口数量为至少一路。
优选地，所述SFP接口包括：电源引脚以及断电告警数字引脚。
优选地，所述SFP接口包括：Serdes引脚TD+/TD-(发送数据)和RD+/RD(接收数据)。
优选地，所述SFP接口包括：1PPS或ToD时钟输出引脚。
优选地，所述SFP模块内部包含：AFE模块、DSP模块和处理器模块。
优选地，模块实现从双绞线技术承载数据到以太网承载数据的互相转换，转换技术包含：双绞线接入技术不限于ADSL，VDSL，G.fast，G.hn，HPNA等转为以太网。
优选地，所述时间同步接口包含：可输出1588 PTP报文。
本优选实施例提供的双绞线接口的SFP模块及其系统，SFP模块实现在SFP插槽/接口上实现铜线接入，能够满足SFP接口适配双绞线介质通信接入需求，解决了光缆不到位导致光口SFP模块不能使用的问题。
图2是根据本实用新型优选实施例的普通SFP模块应用说明示意图，即具备SFP接口的主设备，插上以太网SFP模块后即可正常工作。
图3是根据本实用新型优选实施例的是普通SFP模块进行了双绞线接口改造后的的应用说明示意图，其中图2中普通SFP模块的光纤介质改为双绞线介质，对外接口由光口变为电口，可以是RJ11或RJ12形式，也可以是包含两芯信号管脚的其他接口形态；改变介质后，原来的光电转换模块将被其他模块替换，这里可替换的模块不限各种铜线接入技术：例如ADSL，VDSL，G.fast或G.hn，这些模块又包含模拟前端部分，数字处理部分，以及管理部分，最终输出serdes接口，兼容SFP接口，另外可以提取时钟信息，输出1PPS+ToD引脚或输出1588 PTP报文。
图4是根据本实用新型优选实施例的用户端(Customer Premise Equipment简称为CPE)型双绞线接口SFP模块应用在CPE上或者基站上作为以太网接入的示意图。
图5是根据本实用新型优选实施例的局端(Center Office，简称为CO)型双绞线接口SFP模块应用在以太网下行的产品上作为DSL局端的示意图。
图6是根据本实用新型优选实施例的在铜线介质进行以太网互联场景下，局端和终端分别使用了双绞线接口SFP模块进行了铜线技术和以太网技术转换的示意图。
下面结合优选实施例进行说明。
图7是根据本实用新型优选实施例的CPE型双绞线SFP模块的工作流程示意图，如图7所示，CPE型双绞线SFP模块的工作过程如下，启动后：
S702，主设备给SFP模块供电，SFP模块整机初始化，完成和对端物理层握手交互识别。
S704，双绞线上承载接入数据，此时模拟前端AFE将模拟信号采样为数字信号，送入下一步S706中的DSP模块。
S706，DSP处理，根据不同的协议提取有效载荷。
S708，当需要时间提取时存在，通过特殊协议提取时间信号，可直接输出1PPS+ToD信号。并将时间信息输入给1588主控模块。
S710，从S706步骤提取有效载荷，进行以太网封装，如需要1588时间传递，也可根据S708的时间输入进行1588 PTP协议封装。本步骤完成后已是以太网数据包，输出到SFP的serdes接口供主设备接收使用。
如果是局端设备UNI口使用该SFP模块，则步骤相反。
通过上述优选实施例，解决了铜线技术(DSL，G.fast，G.hn，HPNA)和以太网的互相转换，实现在没有光缆的情况快速实现双绞线接入。
显然，本领域的技术人员应该明白，上述的本优选实施例的各模块或各步骤不限于某一种铜线技术，也可能是多个双绞线接口，用作负荷分担或链路聚合。
以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型，对于本领域的技术人员来说，本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种SFP模块，具有以下有益效果：扩展了SFP模块的使用领域，方便了用户使用。

Claims (11)

  1. 一种小型化可插拔SFP模块，包括：
    至少一个双绞线接口，设置为与双绞线信号线相连接；
    双绞线接入模块，与所述至少一个双绞线接口相连，设置为将所述双绞线信号线中的承载数据与以太网的承载数据进行转换；
    SFP或SFP+接口，与所述双绞线接入模块相连，设置为与SFP插槽或插口相连接。
  2. 根据权利要求1所述的SFP模块，其中，所述双绞线接入模块包括：
    模拟前端AFE，与所述至少一个双绞线接口相连，设置为将所述双绞线信号线中的承载数据由模拟信号采样为数字信号；
    数字信号处理器DSP，与所述AFE相连，设置为在所述数字信号中提取有效载荷；
    双绞线接入处理器CPU，与所述DSP相连，设置为通过双绞线接入技术将所述有效载荷封装为以太网数据包。
  3. 根据权利要求2所述的SFP模块，其中，所述双绞线接入技术包括以下之一：
    非对称数字用户环路ADSL，超高速数字用户环路VDSL，快速接入用户终端G.fast，家庭互联G.hn，家居电话线联网协议HPNA。
  4. 根据权利要求2所述的SFP模块，其中，所述双绞线接入模块还包括：
    1588时间同步模块，与所述DSP和双绞线接入CPU相连，设置为提取时间信息；
    所述双绞线接入CPU还设置为根据所述时间信息将所述有效载荷进行1588 PTP协议的封装。
  5. 根据权利要求1所述的SFP模块，其中，所述双绞线信号线的接口为包含两芯信号管脚的接口。
  6. 根据权利要求5所述的SFP模块，其中，所述双绞线信号线的接口为RJ11或RJ12。
  7. 根据权利要求1所述的SFP模块，其中，所述SFP或SFP+接口为Serdes接口。
  8. 根据权利要求7所述的SFP模块，其中，所述SFP模块还包括：
    Serdes转换PHY，与所述Serdes接口和所述双绞线接入模块相连，设置为将所述双绞线接入模块输出的以太网的承载数据与Serdes格式数据进行转换。
  9. 根据权利要求1所述的SFP模块，其中，所述SFP或SFP+接口包含电源引脚以及断电告警数字引脚。
  10. 根据权利要求1所述的SFP模块，其中，所述SFP或SFP+接口包含Serdes差分信号TD+/TD-和RD+/RD-。
  11. 根据权利要求1所述的SFP模块，其中，所述SFP或SFP+接口包含1PPS或ToD引脚。
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