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6.5.4 EO_TXPWR.request
This message is generated by the CMB transmit function to indicate to the EO interface transmit function to turn off or turn on the injection of optical power in the fibre, when Low Power Idle mode is used. The implementation of this message is optional, and the ability of PHY to use LPI shall be announced by the CMB i...
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6.5.5 EO_RXPWR.request
This message is generated by the EO receive function to indicate to the EO receive function to turn off or turn on the optical to electrical conversion, when Low Power Idle mode is used. The implementation of this message is optional, and the ability of PHY to use LPI shall be announced by the CMB in the physical heade...
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6.6 Connector interface
This interface is between the EO with the plastic optical fibre. Several options are proposed in clause 8. Data transmitted in the connector is optical information coming from the EO interface. Received optical information in the connector is distorted by the optical fibre. Optical information is provided to the EO int...
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7 EO interface specifications
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7.1 Introduction to EO interface
The present clause specifies the PHY Electro Optical interface and baseband medium for Plastic Optical Fibre (POF). The present clause also specifies the common parts to be fulfilled by all the PHYs defined in the annexes from A to D. In addition the definition of optical parameters and the corresponding measurement pr...
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7.2 EO interface functional specification
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7.2.1 Introduction to EO interface
The EO performs the Transmit and Receive functions that convey data between the EO service interface and the fibre connector.
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7.2.2 EO interface block diagram
For purpose of system conformance, the EO interface is defined at the following points, depicted in figure 42. The optical transmit signal is defined at the output end of a patch cord (TP2), of 1 meter in length, of Plastic Optical Fibre consistent with the link type connected to the fibre connector, specified in claus...
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7.2.3 Optical transmit function
The optical transmit function makes the electrical-to-optical conversion from the communication data in form of discrete time analogue electrical signal generated by the CMB transmit function to the fibre connector. Electrical levels at the EO interface are unspecified. The signal at the fibre connector shall meet the ...
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7.2.4 Optical receive function
The optical receive function performs the optical-to-electrical conversion from the optical signal received from fibre connector to the continuous analogue electrical signal used by the CMB receive function to recover the communication PAM symbols. Electrical levels at the EO interface are unspecified. The signal at th...
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7.3 Optical to fibre connector optical specification
7.3.1 Introduction to the optical to fibre connector optical specification The operating range for EO interface is defined for each PHY in annexes from A to D. The annexes from A to D specify the parameters of CMB as well as the EO interface optical specifications for each specific PHY. In the present clause the transm...
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7.3.2 Transmitter optical specifications
Any transmitter shall meet the specifications at TP2 defined in table 8 per measurements techniques defined in clause 7.4. ETSI ETSI TS 105 175-1-2 V1.1.1 (2015-04) 51 Table 8: PHY transmit optical characteristics Description Value Units Transmitter type Defined in annexes from A to D - Wavelength range (λ) Defined in ...
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7.3.3 Receiver optical specifications
Any receiver shall meet the specifications at TP3 defined in table 9. All the parameters in table 9 are defined in clause 7.4. Table 9: PHY receive optical characteristics Description Value Units Wavelength range (λ) Defined in annexes from A to D nm Average Optical Power (max) AOPmax@TP3 Defined in annexes from A to D...
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7.3.4 Worst-case link budget and system margin
The worst-case link budget and system margin for the PHY are defined in table 10, based on the transmitter and the receiver optical specifications provided in clause 8.2.1 and clause 8.2.2, respectively. The link budget chain is depicted in figure 43, as reference for the parameters defined in table 10. See clause 8.1....
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7.3.5 Test modes
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7.3.5.1 Introduction to test modes
Following test modes are defined to instruct the PHY to generate special signal patterns that are suitable for optical measurements defined in clause 7.3.
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7.3.5.2 Test mode 1
The signal pattern generated by CMB in Test mode 1 shall consist on a square bipolar signal of FS / 20 MHz, which takes the extreme values corresponding to a 2-PAM modulation. The scale factor defined in clause 5.2.6 shall be configured to 255 in this test mode and both CMB and THP shall be bypassed. FS is the transmit...
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7.3.5.3 Test mode 2
The CMB shall be instructed to generate pseudo-random M-PAM sequences, using the full range of CMB transmit output. THP shall be bypassed and the Scale Factors defined in column 4 of table 7 shall be used for each M-PAM configuration in CMB transmit function. CMB transmit function shall be configured as follows to gene...
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7.3.5.4 Test mode 3
The signal pattern generated by CMB shall consist on a square bipolar signal, which takes the extreme values corresponding to a 2-PAM modulation. The scale factor defined in clause 5.2.6 shall be configured to 255 in this test mode and most of the CMB shall be bypassed. The CMB transmit function shall generate the tran...
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7.3.5.5 Test mode 4
The CMB shall be instructed to generate pseudo-random M-PAM signal, as in the Test mode 2, but with a symbol rate of FS / 10 MHz. FS is defined for each PHY in annexes from A to D.
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7.4 Optical measurement requirements
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7.4.1 Introduction to optical measures
All the optical measurements shall be made through a short patch cord cable, as defined in clause 7.2.2, at TP2. The optical measurements in the receiver shall be done at TP3. The transmitter testing methodology is such that the EO is not tested in isolation, but is always considered as part of the complete physical la...
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7.4.2 Central wavelength measurement
The central wavelength shall be measured using an optical spectrum analyser per EIA/TIA standard FOTP-127/61.1 [2], 1991. This shall be measured under normal conditions using a valid PHY signal as specified in clause 5.2, and LPI will not be used to make this measurement. The symbol rate of the modulated signal is defi...
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7.4.3 Spectral width measurement
The spectral width (RMS) shall be measured using an optical spectrum analyser per EIA/TIA standard FOTP-127/61.3 [2], 1991. This shall be measured under normal conditions using a valid PHY signal as specified in clause 5.2, and LPI will not be used to make this measurement. The symbol rate of the modulated signal is de...
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7.4.4 Extinction Ratio (ER) measurement
The Extinction Ratio (ER) shall be measured in time domain through the measurement of maximum optical power (P1) and minimum optical power (P0). It is defined as (in dBm): ( ) 0 1 10 / log 10 P P ER × = being P1 and P0 measured in mW, as the integration of all the optical PSD along the complete spectrum. To make neglig...
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7.4.5 Average Optical Power (AOP) measurement
The AOP shall be measured at TP2 and TP3 by means of a large area photo-detector able to couple all the output optical power from the fibre. In order to make properly the AOP measurement, and considering the non-linear effects of the electrical-to-optical conversion of EO transmitter, the PHY shall be configured in Tes...
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7.4.5 Transmit rise/fall time characteristics
The transmit rise and fall times measurement shall be done using an electrical oscilloscope after optical to electrical conversion or an optical oscilloscope. The minimum required bandwidth of the optical-to-electrical converter and oscilloscope shall be 5 / 2 times the symbol rate FS defined for each PHY in the respec...
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7.4.6 Error Vector Magnitude (EVM) measurement
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7.4.6.1 Introduction to EVM
EVM measurements are used to define conformance specifications at TP2 including other non-linear effects of the optical transmitter that cannot be measured by the measurement procedures defined in clause 7.3.
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7.4.6.2 Reference receiver
Rather than analysing the optical signal from a transmitter directly, an idealized reference receiver is assumed, that demodulates and samples the signal prior to any EVM specification parameter computation. The reference receiver is illustrated in figure 44. ETSI ETSI TS 105 175-1-2 V1.1.1 (2015-04) 55 Figure 44: Refe...
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7.4.6.3 Definitions
Throughout the EVM measurement description the following notation will be used: • Define %y t( ) as the continuous time domain optical signal present at TP2. • Define y t( ) as the corresponding electrical signal after an ideal / reference power photo-detector. • Define yk { } as the set of correctly synchronized baud-...
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7.4.6.4 Error Vector Magnitude (EVM)
The Error Vector Magnitude (EVM) is a measure of the deviation between the actual signals at TP2 compared to the ideal. Measurement is performed assuming an ideal / reference receiver composing a direct photo-detector and a correctly synchronized baud rate sampling device. The formal definition of EVM is: EVM =100 × 1 ...
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7.4.6.5 Signal pattern for EVM measurement
The CMB shall be instructed to generate the reference signal xk { } as pseudo-random M-PAM sequences, configuring the PHY in Test mode 2 (see clause 7.3.5.3). The number of M-PAM levels shall be configured through the Data Packet Interface, to make the EVM measurements as specified in clause 7.2.2.
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7.4.7 Transmitter timing jitter measurement
The transmitter timing jitter measurement shall be done using an internal or external optical to electrical converter and a general-purpose oscilloscope or jitter meter. The PHY shall be configured in Test mode 3 to generate the signal pattern for the transmitter timing jitter measurement. The RMS jitter of the crossin...
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7.5 Characteristics of the Plastic Optical Fibre cabling (channel)
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7.5.1 Duplex cable
The EO specified in the present clause is for a plastic optical fibre cable with a multimode optical fibre IEC 60793-2-40 [1] types A4a.2. The cable may be duplex or simplex. The construction of the duplex cable is illustrated in figure 45 and it may meet, but not limited to, the specifications given in table 11 or tab...
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8 Fibre connector specifications (Conn)
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8.1 Introduction to the fibre connector
The EO is coupled to the fibre optic cabling at the fibre connector. The fibre connector is the interface between the EO interface and the fibre optical cabling as specified in clause 7.5. The fibre connector shall be either: a) connectorized duplex receptacle of type LC, or b) connector-less duplex receptacle that acc...
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8.2 Connectorized duplex fibre connector
The EO interface is coupled to the fibre optic cabling through a connector plug into the fibre connector optical receptacle. The fibre connector optical receptacle is the duplex LC, meeting the following requirements: a) Meet the dimension and interface specifications of IEC 61754-20 [3] Ed.2.0. b) Meet the performance...
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8.3 Connector-less duplex fibre connector
The EO interface is coupled to the fibre optic cabling by means of connector-less duplex receptacle that accepts a bare duplex cable termination, where the receive side of the receptacle is located on the right when viewed looking into the transceiver. The connector-less fibre connector requires no connector plug to be...
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1 Scope
The present document provides a compendium of application requirements for full-duplex 100 Mbit/s and 1 Gbit/s Ethernet based home networking infrastructures based on Plastic Optical Fibre (POF) transmission media. The description of applications covers different network topologies as well as different field particular...
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2 References
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2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents, which ...
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2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i...
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3 Abbreviations
For the purposes of the present document, the following abbreviations apply: B2B Business-to-Business BER Bit Error Rate BW Bandwidth CAT Category CPE Customer Premises Equipment DECT Digital Enhanced Cordless Telecommunications DVB-X Digital Video Broadcasting technology ECG Electro Cardio Gram EHC Electronic Health C...
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4 New home networking application requirements
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4.1 Introduction
In the past, POF has been used in the networking market with limited success. The main reasons for that are: • xDSL was bringing up to 20 Mbit/s to the home. • PLC and Wi-Fi™ already fulfilled the requirement for the home networking. ETSI ETSI TS 105 175-1-1 V1.1.1 (2015-10) 8 In Europe, since 2009, and much earlier in...
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4.2 FTTH deployment
Even when Asia-Pacific countries are leading the FTTH deployment, North America is following with a big growth rate. Europe is following the tendency. This deployment multiplies by 2, 4 or even 10 times the available bitrates in the home. New services are offered in parallel to just the Internet connection. This increa...
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4.3 Internet based services
To the traditional World Wide Web surfing and e-mail services, other services have been added to the public Internet offer: • Voice over IP: Traditional analogue phone lines are being replaced more and more with VoIP digital technology. Nevertheless, the requirements of this service are more related with signal jitter ...
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4.4 Current in-home networking services
The communication networks essentially allow an exchange of information between persons, between persons and equipment (e.g. a video server), and between equipment (e.g. a sensor and an actuator). Based on the type of the information exchange and the inherent service requirements, the following groups/classes of servic...
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4.5 Current home networking technologies
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4.5.1 Introduction
4.
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5.1 Introduction
The main classification criteria for home networking technologies is the one based on wired versus no wired home networks. The flexibility provided by no wired networks has to be well balanced with other advantages provided by the wired technologies. These advantages are summarized in the following paragraph: • Wired n...
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4.5.2 Ethernet CAT-5e/CAT-6 100 Mbit/s / 1 000 Mbit/s
This is the main solution to connect ONTs or Modems to routers and/or IPTV set-top-boxes when distances are higher than a few meters. Is based on the IEEE™ 802.3z [i.2] (1000BASE-T) and IEEE™ 802.3u [i.3] (100BASE-T) standard for the physical layer and the cable is based on ANSI/TIA/EIA-568 [i.13]. The main drawback of...
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4.5.3 Wi-Fi 802. 11 a/b/g/n/ac
Wi-Fi (IEEE™ 802.11 [i.7]) is the technology of choice for mobile devices like Laptops, Tablets and Smart-Phones. It normally offers a good QoS within a single room range. Nevertheless, Wi-Fi performance degrades very fast with the number of walls to be crossed and neighbours sharing the same channels. It is a known fa...
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4.5.4 Power Line Communications (PLC)
PLC has been used for the last 10 years. Several standards are available without interoperability (HomePlug™, UPA, HomeGrid, etc.). G.hn is expected to solve this multi-standard situation that is jeopardizing the market growth. PLC is typically deployed to avoid the installation of CAT-5e links between distant places w...
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4.5.5 G.hn
G.hn (Recommendation ITU-T G.9960 [i.1]) is the big strategic move of the home networking industry trying to join together all the cable technologies in the home, Coaxial, Phone line and Power line, guaranteeing interoperability. The bit rates provided by G.hn go up to several hundreds of Mbit/s. G.hn will be used in m...
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4.5.6 POF (100 Mbit/s)
Plastic Optical Fibre based home networks have been deployed for the last few years. POF has a clear value proposition when compared to other "new wires" installations like CAT-5e/CAT-6 as it is easier to install. POF installations do not require any connectorization and can be laid down sharing the existing main ducts...
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4.6 Current home networking topologies
The home networking topologies depend mostly in the technology supporting the network. Each technology has a "way" of working which conditions its natural topology. Nevertheless, the interconnection between the modem, the router or the STB is, nowadays, done with a CAT-5e/CAT-6 Ethernet link. The reason for this choice...
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4.7 New application requirements
Besides the above mentioned existing home applications like video, internet based or home security, new applications and existing applications upgrades are already being offered and in the future more applications will expand the portfolio of service and telecom operators. A list of these services along with its requir...
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5.2 POF installation advantages
Table 8 describes the chief advantages of a POF backbone installation versus its closer competitor, CAT-5e/CAT-6, as well versus GOF (Glass Optical Fibre). Table 8: POF vs CAT6 and GOF POF Cable diameter depends on communication type (i.e. simplex or duplex), and jacket type (1,5 mm or 2,2 mm). ETSI ETSI TS 105 175-1-1...
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5.3 POF based home networking topologies
As said before, POF is suitable either for Green or Brown fields. Typically, Green fields provide pre-set installations with Star Topologies. In this case POF will follow the supplied ducts and will evolve the star from the central IT cabinet of the home by means of an optical POF switch. Each room will typically get o...
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5.4 Suitability of a POF-WiFi-CAT-5e hybrid network
As said before, there are personal devices like PDAs, Smart Phones, Tablets or portable game consoles that always rely on a wireless connection to deliver the mobility experience to the user. On the other hand, most of the typical home services require a QoS (jitter, latency, priority, etc.) that could only be delivere...
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5.5 POF Standards
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5.5.1 Introduction
Thanks to the effort of the POF industry and academia, several standards are available. The coverage of these standards is fairly wide from the POF as a physical media to the Gigabit communication protocol. The final objective of each and all the standards is to enable an open and interoperable market that ensures a re...
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5.5.2 Fibre - IEC 60793-2-40 A4a.2 POF
International Standard IEC 60793-2-40 [3] has been prepared by subcommittee 86A: Fibres and cables, of IEC TC 86: Fibre optics. This is the fourth edition that cancels and replaces the third edition published in 2009 and constitutes a harmonized terminology within the IEC 60793-2 [2] series. POF to RJ45 POF to RJ45 wit...
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5.5.3 EN 50173-1 and EN 50173-4
CENELEC EN 50173-4 [7] defines channel losses. Different fibres in different scenarios are defined in the document. In concrete POF fibre within indoor applications, and its link budget requirements are described. Following described standards like ETSI TS 105 175-1 [1] and ETSI TS 105 175-1-2 [5] take in consideration...
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5.5.4 ETSI TS 105 175-1 (V2.0.0)
The present document from the ATTM technical Committee (Access, Terminals, Transmission and Multiplexing) aims to define a set of relevant Plastic Optical Fibre System Specifications for 100 Mbit/s and 1 Gbit/s. ETSI TS 105 175-1 [1] (V2.0.0 from October 2011), the latest revision of this document, specifies the POF ca...
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6.1 Introduction
Most of the requirements of the Gigabit POF based applications are already compatible and defined in ETSI TS 105 175-1 [1].
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6.2 Physical layer requirements
The physical layer shall be implemented following ETSI TS 105 175-1-2 [5]. The data packets to be used with ETSI TS 105 175-1-2 [5] shall be regular Ethernet frames. The link budget characteristics of the 1 Gbit/s and 100 Mbit/s are described in figures 6 and 7. Figure 6: 1 Gbit/s link budget ETSI ETSI TS 105 175-1-1 V...
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6.3 Ethernet layer performance
The resulting performance of the implemented Ethernet link should follow: • Bitrate: shall be exactly 1 Gbit/s or 100 Mbit/s, MAC Layer compatible with other 1 Gbit/s and 100 Mbit/s full duplex standards in IEEE™ 802.3 and [9], clauses 24 and 34, following ETSI TS 105 175-1-2 [5]. • Adaptive Bit Rate is specified as op...
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6.4 Backwards compatibility
New gigabit over POF implementation shall be backwards compatible with already deployed 802.3 100BASE-FX [9] devices. The 100BASE-FX [9] PCS and PMA are specified in IEEE™ 802.3 [9], clause 24.
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6.5 Environmental requirements
• Temperature: is driven by application. Please refer to ETSI TS 105 175-1 [1]. • EMI: please refer to ETSI TS 105 175-1 [1]. • Safety: please refer to ETSI TS 105 175-1 [1]. ETSI ETSI TS 105 175-1-1 V1.1.1 (2015-10) 24
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6.6 Topology requirements
Several topologies shall be supported: • Star: default topology for green field. • Daisy/Chain: brown field houses. Reuse mains topology. • Tree: complementary to Daisy/Chain to support branches. For the implementation of those topologies bridging and multicast traffic handling shall follow: • IEEE™ 802.1p [i.5]: Multi...
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6.7 Energy Efficient Ethernet requirements
Low power mode is described as optional in ETSI TS 105 175-1-2 [5]. Consequently, Energy Efficient Ethernet is optional in the present document.
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6.8 Network Management requirements
Following network management standards should be supported under the request of B2B demand: • SNMP v3: please refer to RFC from 3410 to 3418 [i.10] for more details. • TR-069 Amendment 4 [i.9] and TR-143 [i.11]. CPE-1 profile.
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6.9 Diagnostic and monitoring requirements
The system shall provide diagnostic and monitoring requirements. The system shall provide at least the following indicators at both ends of the link for monitoring and diagnostic: • Received power • Link margin • Temperature The present document does not specify how these indicators shall be implemented.
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6.10 Higher Level System requirements
Please refer to ETSI TS 105 175-1 [1]. ETSI ETSI TS 105 175-1-1 V1.1.1 (2015-10) 25 History Document history V1.1.1 January 2010 Publication as TS 105 175-1 V2.0.0 October 2011 Publication as TS 105 175-1 V1.1.1 October 2015 Publication
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1 Scope and Purpose
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1.1 Scope
The present document specifies the POF cabling system 100 Mbit/s and 1 Gbit/s for interoperability among different suppliers. The system comprises the active optical elements, the cables, connectors and wall plugs. A future step could be to achieve integration of POF interfaces into end user equipment.
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1.2 Requirements Notation
If the present document is implemented, the key words "MUST" and "SHALL" as well as "REQUIRED" are to be interpreted as indicating a mandatory aspect of the present document. The keywords indicating a certain level of significance of a particular requirement that are used throughout the present document are summarized ...
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2 References
References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which ar...
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2.1 Normative references
The following referenced documents are necessary for the application of the present document. [1] Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. [2] IEEE 802.3: "Telecommunication...
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2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] IEEE 802.3u: "Local and Metropolitan Area Networks-Supplement - Media Access Control (MAC) Parameters, Physical Layer, Medium Attachment Units and Rep...
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3 Definitions and abbreviations
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3.1 Definitions
For the purposes of the present document, the following terms and definitions apply: triple play services: scenario in which voice, video and data are all provided in a single access subscription
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3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply: ACS Auto Configuration Server CPE Customer Premises Equipment EMI ElectroMagnetic Interference FTTH Fiber To The Home GOF Glass Optical Fibre GPON Gigabit Passive Optical Network HG Home Gateway IPTV Internet Protocol Television MTBF Mean Time...
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4 Requirements for 100 Mbit/s System (Fast Ethernet)
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4.1 Performances
Today on the market several suppliers offer IEC 60793-2-40 [7] PMMA POF media converter solutions at 100 Mbit/s. With such performance PMMA fibre may be used in the home to interconnect all devices usually communicating through Fast Ethernet interfaces for example the link between the home gateway and the STB. Below th...
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4.2 Higher Level System Features
R10 The system SHOULD be conform to QoS specifications per channel as outlined in DSL Forum Technical Report TR-126 [4]. R11 The system MUST interoperate among multiple vendors systems to stimulate competition and ensure security features are common throughout vendors and SHOULD be interoperable at the specified data r...
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5 Requirements for 1 Gbit/s System
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5.1 Performances
R16 The max Physical Layer Data Rate MUST be 1,25 Gbit/s, compliant with IEEE 802.3z [i.2]. R17 The link MAY have an adaptive data rate depending upon link length and number of bends. An indicative performance is shown in table 1. Table 1 Link Length (m) Number of 90o Bends of 12 mm Radius Physical Layer Data Rate (Gbi...
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5.2 Higher Level System Features
R23 The system SHOULD be conform to QoS specifications per channel as outlined in DSL Forum Technical Report TR-126 [4]. R24 The system MUST interoperate among multiple vendors systems to stimulate competition and ensure security features are common throughout vendors and SHOULD be interoperable at the specified data r...
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6 Cabling solutions
6.1 Cable and fibre R29 The cable SHALL be manufactured according to IEC 60794-2-41 [9]. R30 The cable MUST include 1 or 2 PMMA POF fibres. In the latter case one for the downstream and the other one for the upstream. R31 The PMMA [8] fibre MUST be compliant with the categories A4.a2, defined in the IEC 60793-2-40 [7] ...
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7 Installation
The PMMA POF solution is very attractive to do a point to point architecture in an already constructed house, because the installation of the cable could be performed by the user himself. Several installation configurations can be considered: the cable can be installed in existing ducts (empty or already used by a copp...
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8 Energy efficiency
Ultimately POF transceivers will be integrated in the user equipments thus reducing the number of power supplies hence the overall electrical consumption. An alternative to this would be to power up the media converter by means of USB interface or Power over Ethernet (PoE) on the RJ45 interface. Energy efficiency targe...
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9 Integrated Wall Plug
The equipment described in this clause permits the usage of POF in domestic environments, especially enabling POF insertion into existing ducts used for electrical wirings. The equipment has functions of bridge between POF and Ethernet technologies. The equipment consists of POF connector(s), Optical transceiver(s), Et...
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9.1 Interfaces - External sockets
R46 The wall plug MUST have 1 external energy socket according to specific country standard according to IEC 60884-1 [15] for general requirements. R47 The wall plug MUST have 1 or 2 RJ45 ports: 10/100/[1000 optional] BaseT/TX Ethernet port. R48 The BaseT/TX Ethernet interface MUST be compliant to the ISO/IEC 8802-3 [1...
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9.2 Interfaces - Internal sockets
R50 The wall plug MUST have 1 or 2 or 3 POF interfaces (each interface for a couple of POFs in order to allow a bi-directional communication). R51 The optical interface MUST be compliant with POF diameter according to the transceivers already available on the market today (e.g. 1,5 mm or 2,2 mm). R52 The installation p...
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9.3 Wall socket plugs versions
Four versions MUST be considered. R54 All versions MUST include one energy socket. a. Version 1 (basic) with 1 RJ45 (External) and 1 POF interface (Internal). b. Version 2 (pass-through) with 1 RJ45 (External) and 2 POF interfaces (Internal). c. Version 3 (optical splitter) with 1 RJ45 (External) and 3 POF interfaces (...