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ITU Normal.dot Abstract for tutorial presentation on Copper Access Presenter: Peter Macaulay This tutorial is a technology update describing recent changes in access technology for twisted copper pairs, coax and power lines. Twisted copper pairs includes advances with ADSL2+ (ITU-T G.992.5), SHDSL (ITU-T G.991.2) as well as the recent proposals of ADSL2++ and VDSL2.
Language:English
Score: 1206520.1 - https://www.itu.int/ITU-T/work...tutorial_part1_p1_macaulay.doc
Data Source: un
[S1PM-P03] Broadband Access: A Global View: Mr. K. Twist, Broadband Access Networks Français   Español Print Version Office of the Secretary General Radio- communication (ITU-R) Telecom Standardization (ITU-T) Telecom Development (ITU-D) TELECOM Exhibitions and Forum Membership Home Page : Publications [S1PM-P03] Broadband Access: A Global View: Mr. K. Twist, Broadband Access Networks   Availability : Free Download View or Download Document Format Size Posted Free Download English   PowerPoint 7.0 1.6 mb Jun 28 2002   ZIP File 825.1 kb Jun 28 2002 Top  -  Feedback  -  Privacy  -  Copyright © ITU 2001  All Rights Reserved Contact for this page :  webmaster@itu.int Updated : 2007-03-30  
Language:English
Score: 1204695.5 - https://www.itu.int/itudoc/itu.../workshop/optical/s1pmp03.html
Data Source: un
[S1PM-P03] Broadband Access: A Global View: Mr. K. Twist, Broadband Access Networks English   Français Copia Imprimible Oficina del Secretario General Radio- comunicaciones (ITU-R) Normalización (ITU-T) Desarrollo (ITU-D) TELECOM Exposiciones y Foros Miembros Pagina Principal : Publicaciones [S1PM-P03] Broadband Access: A Global View: Mr. K. Twist, Broadband Access Networks   Disponibilidad : Free Download Telecargar Document Formato Talla Colocado Free Download English   PowerPoint 7.0 1.6 mb jun 28 2002   ZIP File 825.1 kb jun 28 2002 Comienzo de la página  -  Comentarios  -  Confidencial  -  Copyright © ITU 2001  Reservados todos los derechos Contacto public :  webmaster@itu.int Puesto al dia el 2007-03-30  
Language:English
Score: 1201062.9 - https://www.itu.int/itudoc/itu...rkshop/optical/s1pmp03-es.html
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[S1PM-P03] Broadband Access: A Global View: Mr. K. Twist, Broadband Access Networks English   Español Copie Imprimable Bureau du Secrétaire Général Radio- communication (ITU-R) Normalisation (ITU-T) Développement (ITU-D) Expositions et Forums de TELECOM Membres Page d'accueil : Publications [S1PM-P03] Broadband Access: A Global View: Mr. K. Twist, Broadband Access Networks   Disponibilité : Free Download Téléchargez le document Format Taille Mis à jour Télechargement gratuit English   PowerPoint 7.0 1.6 mo jun 28 2002   ZIP File 825.1 ko jun 28 2002 Début de page  -  Commentaires  -  Confidentialité  -  Droit d'auteur © UIT 2001  Tout droits réservés Contact pour cette page :  webmaster@itu.int Mis à jour le 2007-03-30  
Language:English
Score: 1197452.05 - https://www.itu.int/itudoc/itu...rkshop/optical/s1pmp03-fr.html
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Known measurements of single-wire copper waveguide modes are _extrapolated here to a multi-user multiple-input- multiple-output (MU-MIMO) or, equivalently, “Vectored” model for a twisted pair cable. Projections beyond the known regimes indicate that transmission speeds on the order of Terabits per second (Tbps) may be achieved. Some consideration of practical twisted-pair effects and projected associated complexity are also provided.
Language:English
Score: 1193862.9 - https://www.itu.int/en/ITU-T/W...ts/Kenneth_Kerpez_Abstract.pdf
Data Source: un
The offer shall be all-inclusive (i.e. to include any activity necessary to carry out the tasks stated in the TOR) SN Description Specification Unit Quantity / year Unit Price Installation Cost TOTAL Price 1 Preventive LV Network Regular Checks Check jumper clips status and replace the broken activity 365 0.00 Check clamps status and replace the faulty ones activity 365 0.00 Check suspenders status and replace the faulty ones activity 365 0.00 Check cable’s sag activity 365 0.00 Check poles and correct the slopping poles activity 52 0.00 Check poles and treat the rust if it found activity 52 0.00 Check stays tension and replace or correct the faulty ones activity 52 0.00 Check cable termination and insolation and replace or correct the faulty ones activity 365 0.00 Check all streets lighting units at all plots, markets and ring road lighting and replace or correct the faulty ones activity 52 Balancing the loads of the transformer’s phases activity 52 Consumer cables and connections regular checks Check jumper clips of consumer cables and replace or correct the faulty ones. activity 365 Check the consumer cables and insulate it with heat shrink if needed / Once a day and replace or correct the faulty ones. activity 365 Check the consumer cable fixation at the top of pole and shelter and replace or correct the faulty ones activity 52 Check cable connection at the consumer unit and replace or correct the faulty ones activity 52 Check cables tension and replace or correct the faulty ones activity 12 Check earth leakage breaker and MCB breakers status and replace or correct the faulty ones activity 12 Check consumer internal wiring and connections and correct or replace activity 12 Transformers rooms and Main distribution boards (MDB) Regular Checks Check the main circuit breaker status and replace or correct the faulty ones activity 52 Check all the LV cables connections from starting from the transformer till the poles activity 52 Check all second circuits’ breakers status and replace or correct the faulty ones activity 52 Check automated breakers status and calibration and replace or correct the faulty ones activity 52 Check timers’ status (battery and work status) and replace or correct the faulty ones activity 52 Check (photocell, conductor, and three-position switches) status and replace or correct the faulty ones activity 52 Check Copper cables lugs status inside the MDB (insulation and fixation) and replace or correct the faulty ones activity 52 Check the control wires connection and status and replace or correct the faulty ones activity 52 Check the bus-bars insulation and replace or correct the faulty ones activity 52 Check holes at the bottom of MDB and close it suitably and replace or correct the faulty ones activity 52 Check doors (locks, paint, hinges, and rubber) and replace or correct the faulty ones activity 52 3 Reporting Reports Daily report pcs 365 0.00 Weekly report pcs 52 Monthly report pcs 12 0.00 4 Corrective Corrective activities is only upon the request of UNHCR field engineer, and quantity shown is the expected frequency and might subject to change Dismantling electrical materials from vacant or damaged shelters/Caravans, and store it in the bidder Storage Area activity 100 0.00 Storage Area Inventory Count activity 12 0.00 New internal wiring for the new vacant shelters/caravans activity 200 0.00 Maintain the internal wiring for the damaged shelters/caravans activity 200 0.00 Install new cables on LV Poles m 1000 0.00 Connecting new caravan/shelters to the grid activity 1000 0.00 Installing LV poles Pole 200 0.00 Installing MDBs activity 20 0.00 Disconnecting vacant caravans/shelters activity 1000 0.00 Provide technical assessment and BoQ activity 100 0.00 Installing street Lights units Unit 200 0.00 Testing MDB testing Volts: Phase to phase /phase to neutral / phase to earth / earth to neutral for all MDBs in the camp activity 12 0.00 Ampere: Measure the load (ampere) on each phase individually activity 12 0.00 Earth resistance in the MDB and Measure the earth resistance at earth bus bar activity 12 0.00 Continuity Tests for All Stretched Cables activity 12 0.00 Insulation Tests for copper cables activity 12 0.00 Thermal imaging test for MDBs activity 2 0.00 Consumer Unit Testing Selecting random addresses thorough UNHCR electrical engineer, and make these measurements Volts:Phase to neutral / phase to earth / neutral to earth. activity 52 0.00 Ampere:Measure the load at chosen addresses by UNHCR engineer activity 52 0.00 Earth system Tests Check the earth resistance in different locations (shelters, poles, MDB and Transformer Room) and conduct necessary actions for corrections activity 12 0.00 Check the earth resistance at the main ground point; it should be not more than 5 Ω (ohm) and conduct necessary actions for corrections activity 12 0.00 Check the earth connections and replace the broken clips activity 12 0.00 6 Estimated spare parts Low Voltage Poles 10m with all accessories TUV Certified Galvanized 82-120 Micron Yield Strength N/mm2 420-461 Tensile Strength N/mm2 545-570 Elongation % 32-38 pcs 30 0.00 Low Voltage Poles 9m with all accessories TUV Certified Galvanized 82-120 Micron Yield Strength N/mm2 420-461 Tensile Strength N/mm2 545-570 Elongation % 32-38 pcs 30 0.00 Steel cable stay With all needed accessories 35 to 50 mm2 galvanized from 55-70 micro pcs 80 0.00 Feeders Poles 12 m with all accessories TUV Certified Galvanized 82-120 Micron Yield Strength N/mm2 420-461 Tensile Strength N/mm2 545-570 Elongation % 32-38 pcs 10 0.00 Low Voltage pole Concrete Base According to Jordanian Civil Engineering Standard pcs 50 0.00 LED Fixtures for the Plots Street 60W 90-260 Input Voltage 100 lm/W TUV Certified Heat Dissipation 4000 – 6000 K CE certified IP 65 50-60Hz pcs 100 0.00 LED Fixtures for the Plots Street 30 W 90-260 Input Voltage 100 lm/W TUV Certified Heat Dissipation 4000 – 6000 K CE certified IP 65 50-60Hz pcs 100 0.00 LED Fixtures for the Plots Street 90 W 90-260 Input Voltage 100 lm/W TUV Certified Heat Dissipation 4000 – 6000 K CE certified IP 65 50-60Hz pcs 100 0.00 Cross Arm 2.5m with all needed accessories Galvanized 45-55 Micron pcs 100 0.00 Insulation plastic ring for lighting For street lighting pcs 150 0.00 LV 1x 300 mm2 CU/XLPE/SWA/PVC m 300 0.00 LV 1x 70 mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 1x 120 mm2 CU/XLPE/SWA/PVC m 300 0.00 LV 4x95+50mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 1x 185 mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 4X35mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 4x120+70mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 4x240+120mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 4x300+150mm2 CU/XLPE/SWA/PVC m 100 0.00 LV4x400+240mm2 CU/XLPE/SWA/PVC m 100 0.00 LV 4x185+120mm2 CU/XLPE/SWA/PVC m 300 0.00 TWISTED 4AL (4X185 mm2) ALLOY/XLPE m 400 0.00 TWISTED 3AL+AL+AL. (3*150 mm2)+50+95 ALLOY/XLPE m 50 0.00 TWISTED 3AL+AL+AL. (3*150 mm2)+50+95 ALLOY/XLPE m 100 0.00 TWISTED 3AL+AL+AL. (3*120 mm2)+35+70 ALLOY/XLPE m 500 0.00 TWISTED 3AL+AL+AL. (3*95 mm2)+25+50 ALLOY/XLPE m 100 0.00 TWISTED 3AL+AL+AL. (3*70 mm2)+25+35 ALLOY/XLPE m 500 0.00 TWISTED 3AL+AL+AL. (3*50 mm2)+16+25 ALLOY/XLPE m 100 0.00 TWISTED 3AL+AL+AL. (3*35 mm2)+25+25 ALLOY/XLPE m 100 0.00 TWISTED 3AL+AL+AL. (3*25 mm2)+25+25 ALLOY/XLPE m 100 0.00 TWISTED 3AL+AL+AL. (3*10 mm2) ALLOY/XLPE m 1000 0.00 LV 3x4mm2 CU/XLPE/SWA/PVC m 500 0.00 LV 3x6mm2 CU/XLPE/SWA/PVC m 200 0.00 LV 3x2.5 mm2 CU/XLPE/SWA/PVC m 200 0.00 LV 2x2.5 mm2 CU/XLPE/SWA/PVC m 150 0.00 LV 5x16mm2 2 CU/XLPE/SWA/PVC m 150 0.00 LV 4x25mm2+1x16mm2 CU/XLPE/SWA/PVC m 150 0.00 LV 4x50mm2+1x25mm2 CU/XLPE/SWA/PVC m 150 0.00 TWISTED 3AL+AL+AL. (3*16 mm2)+16+16 ALLOY/XLPE m 100 0.00 TWISTED 3AL+AL+AL. (3*25 mm2)+25+25 ALLOY/XLPE m 150 0.00 TWISTED 3AL+AL+AL. (3*50 mm2)+50+50 ALLOY/XLPE m 150 0.00 10A MCB pcs 30 0.00 16A MCB pcs 30 0.00 RCBO RCBOs shall be rated for 240Vac, 50Hz with breaking/making capacity of 120A rms, short circuit withstand current lcw of 2kA rms for 1 second, rated short circuit making capacity of 3kA peak and short circuit conditional current of 6A rms MCB’s and RCBO’s shall be rated for 230V/400V; 50Hz, short circuit capacity Ics/Icn of 6,000A pcs 300 0.00 Consumer Unit Consumer units shall be surface mounted with IP3X-rated insulated housing with DIN rails for mounting of circuit breakers.
Language:English
Score: 1192377.9 - https://www.unhcr.org/jo/wp-co...ancial-Offer-Form_Zaatari.xlsx
Data Source: un
Table I.4 – Wire types Short Type Reference name A26u 26 AWG twisted buried distribution cable (gel filled PIC) A26j 26 AWG twisted loose jumper wire A22b 22 AWG twisted buried drop wire with metal sleeve (BSW-2-22, has 2 pairs) CAT3 24 AWG CAT-3 CAT5 24 AWG CAT-5 Clause I.2.4.1 B05a 0.5 mm 2-pair unshielded aerial Clause I.2.4.1 B05b 0.5 mm 2-pair unshielded aerial B05du 0.5 mm 2-pair unshielded aerial Multipair unshielded underground T05a Four-pair shielded indoor T05b In-building cable: Multiquad shielded Clause I.2.4.1 T05h In-house cable: Two or more pairs of unshielded, untwisted wires Clause I.2.4.1 T05u Multiquad shielded underground Clause I.2.4.1 B08a One-pair unshielded aerial B05cw Two or more pairs of unshielded untwisted wires.
Language:English
Score: 1191114.7 - https://www.itu.int/en/publica...files/basic-html/page1070.html
Data Source: un
K.Sup25 : ITU-T K.117 - Long reach single twisted-pair Ethernet resistibility testing   Français   Español     Home : ITU-T : Publications : Recommendations : K Series : K.Sup25 : K.Sup25 (05/21) Recently posted  -  Search Recommendations     K.Sup25 : ITU-T K.117 - Long reach single twisted-pair Ethernet resistibility testing Recommendation K.Sup25 (05/21) Approved in 2021-05-20 Status : In force   Table of Contents   Summary Access : Freely available items Available languages and formats :   Click on the selected format and language to get the document     Format Size Posted Article Number English PDF (acrobat) 1402686 bytes 2021-09-24 E 44600  Access : TIES users Available languages and formats :   Click on the selected format and language to get the document     Format Size Posted Article Number TIES users English Word 2007 1228459 bytes 2021-09-24 E 44600    Top  -  Feedback  -  Contact us  -  Copyright © ITU  2008 All Rights Reserved Contact for this page :  ITU-T Publications Updated : 2021-09-24  
Language:English
Score: 1186748.6 - https://www.itu.int/rec/T-REC-K.Sup25-202105-I
Data Source: un
Multi-Gigabit broadband access over copper (MGfast) Multi-Gigabit broadband access over copper (MGfast) Frank Van der Putten, ITU-T SG15/Q4 Rapporteur 18 Nov 2020, BBF BASE UFBB ITU-T SG15/Q4 experts group • Study Group 15: Networks, Technologies and Infrastructures for Transport, Access and Home • Q4: Broadband access over metallic conductors (twisted pair and coax) • Projects: xDSL, G.(mg)fast, bonding, testing, management • Main liaisons: ITU-R, ETSI TC ATTM and Broadband Forum • G.fast first version was approved in Dec 2014, revised in March 2019 • Latest deliverable: started MGfast approval process on 18 Sept 2020 Turning copper into gold Since 1997 Fiber to the most economical point 1000 2000 5000 meter50020010050200 2.5 Gb/s (G-PON), 10Gb/s (XGS-PON) over fiber 2Gbit/s TDD @ 50m TP 2Gbit/s TDD @ 200m coax FTTBuilding /distribution point G.fast 212 MHz FTTHome G-PON, XGS-PON 5Gbit/s DS FDX @ 30m TP 5Gbit/s DS FDX @ 100m coax FTTBuilding /distribution point MGfast 424 MHz FTTCabinet VDSL2 35 MHz, vectoring 300Mbit/s DS @ 300m TP 200Mbit/s DS @ 500m TP 10Mbit/s DS @ 2.5km TP 1Mbit/s DS @ 5km TPFTTCabinet VDSL2 2/8 MHz – Long Reach, vectoring 100Mbit/s DS @ 700m TPFTTCabinet VDSL2 17 MHz, vectoring Overview Copper Access Network Solutions ITU-T standards FDX : full-duplex TDD: half-duplex DS : downstream TP: twisted pair MGfast inherits G.fast features 424 MHz • Half-duplex (Time-Division-Duplexing) • Easy service rate split down/up • Dynamic based on instant traffic needs • Independent / Coordinated TDD DTA • End user self-installation • Deployment made easier (no truck-roll) • VoIP replacing POTS on access wiring • Operate in presence of bridged taps • Impulse noise protection • Data retransmission • Repetitive and isolated signal erasures • Noise cancellation (Far-end Crosstalk) • Pre/post-compensate useful signal with predicted noise • Receiver sees “noise-free” signal • Higher channel capacity due to lower noise level • Frequency and time synchronization • Some apps/deployments need precise network timing • Deliver “wallclock” at user side with ~10s of nanoseconds precision to network-wide time • Spectrum notching for electromagnetic immunity • Narrowband Radio Interference • ITU-R defined bands for restricted emission RFI • Reverse power feeding (power DPU from the CPE/premises) • Defined for point-to-point operation • Addressed in collaboration with ETSI ATTM RPF • Support for Full-duplex (FDX) on twisted pair and coax; nearly doubles the data rate capacity on coax. • Simultaneous downstream and upstream transmission also requires vectoring to cancel near-end crosstalk • Data rate increase & RTT latency decrease Full Duplex • Low Density Parity Check (LDPC) coding • Probabilistic Constellation Shaping • Gap-to-capacity of < 2dB • 5-10% data rate increase PCS LDPC • Point-to-Multipoint operation over twisted pair or coax • DPU resource sharing over multiple CPE • Flexible Bandwidth Reassignment – each CPE uses part of spectrum • CPE authentication with IEEE802.1X P2MP • Multiple QoS classes configured per individual line • Per QoS class configuration of maximum latency • Ultra low-latency services (<1 ms) • Differentiation through flexible combining of requested and proactive retransmissions QoS • Up to 5Gbit/s operation per direction • Maximize the reach and coverage of a ‘universal’ 1 Gbit/s symmetric service • Co-existence with G.fast 424 MHz • Discontinuous Time and Frequency Operation • Reduces complexity of large-scale vectoring systems • Enables power savings – especially at the DPU • Reserve part of time slots and higher frequencies for (unvectored) use by one line at a time, as required/implied by traffic needs of individual users DTFO MGfast main new features Future enhancements • MGfast 848 MHz operation on coax • Uses all spectrum under the sat-tv overlay • Up to 10Gbit/s per direction with FDX 848 MHz • Using multi-pair G.fast for backhaul DPU uplink • “Back-to-back DPUs” causes near-end crosstalk to be cancelled by vectoring • Cascade multiple fastback DPUs for longer reach • Multi-hop TDD alignment causes timing challenge BACK FAST • MGfast low power operation • DTFO already enables power savings • Sending signal only when sending data • Battery operation • CO2 footprint reduction 424 MHz • Accuracy of G.fast and MGfast test parameters • Attenuation and noise measurements • Network troubleshooting/qualification • Specification requested by BBF for Gfast certification Collaboration with Broadband Forum Transforming the access network with gigabit capable broadband technologies • Technology requirements: early liaison exchange about the what and why • FTTdp architecture (TR-301): Netconf/YANG and Reverse Power Feeding • YANG models for Gfast (TR-355) and DPU network functions (TR-383) • Certification: BBF-337 Gfast verifies functional interoperability • Performance: setting the bar for operation over TP and coax (TR-380) • Interoperability plugfests: the engineers’ sandbox at UNH • Fiber Access Extension: Gfast for fiber-like experience (WT/MD-419) • Marketing: Promote/Showcase Gfast technology for deployment (BASe)
Language:English
Score: 1170515.6 - https://www.itu.int/en/ITU-T/s...ASE-2020-UFBB-ITU-T-MGfast.pdf
Data Source: un
Title Date 14543-2-1 IT - Home Electronic System (HES) Architecture - Part 2-1: Introduction and device modularity Medium: Twisted pair, Wireless 2006 14543-3-1 IT - Home Electronic System (HES) architecture - Part 3-1: Communication layers – Application layer for network based control of HES Class 1 Medium: Twisted pair, Wireless 2006 14543-3-2 IT -Home Electronic System (HES) Architecture - Part 3-2: Communication layers – Transport, network and general parts of data link layer for network based control of HES Class 1 Medium: Twisted pair, Wireless 2006 14543-3-3 IT - Home Electronic System (HES) architecture - Part 3-3: User process for network based control of HES Class 1 Medium: Twisted pair, Wireless 2007 14543-3-4 IT -Home Electronic System (HES) architecture - Part 3-4: System management - Management procedures for network based control of HES Class 1 Medium: Twisted pair, Wireless 2007 14543-3-5 IT - Home Electronic System (HES) architecture - Part 3-5: Media and media dependent layers – Powerline for network based control of HES Class 1 Medium: Powerline, Wireless 2007 14543-3-6 IT - Home Electronic System (HES) architecture - Part 3-6: Media and media dependent layers - Twisted pair for net-work based control of HES Class 1 Medium: Twisted pair 2007 14543-3-7 IT - Home Electronic System (HES) architecture - Part 3-7: Media and media dependent layers - Radio frequency for network based control of HES Class 1 Medium: Wireless 2007 14543-3-10 IT - Home Electronic System (HES) architecture - Part 3-10: Wireless Short-Packet (WSP) protocol optimised for energy harvesting – Architecture and lower layer protocols Medium: Wireless 2012 14709-1 IT - Configuration of Customer Premises Cabling (CPC) for applications - Part 1: Integrated Services Digital Network (ISDN) basic access Medium: Twisted pair 1997 Amd 1: 2004 14709-2 IT - Configuration of Customer Premises Cabling (CPC) for applications - Part 2: Integrated Services Digital Network (ISDN) primary rate Medium: Twisted pair 1999 Amd 1 2005 11801 IT- Generic cabling for customer premises Medium: Fibre, Coax, Twisted pair Ed 2 2002 Amd 2 2010 15018 IT - Generic cabling for homes Medium: Coax, Twisted pair 2004 29108 IT -- Terminology for intelligent homes Medium: Fibre, Coax. Twisted pair, Powerline, Wireless 2013 7. Contacts Body Contact person Link to the Web-Site Status of contact Notes Liaison Tracking ATIS Committee NIPP BBF Broadband Forum Mr.
Language:English
Score: 1157690.4 - https://www.itu.int/en/ITU-T/s...dards_Overview-WorkPlan-V2.doc
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