IEC TR 61156-1-6 Multicore and symmetrical pair/quad cables for digital communications - Part 1-6: Nominal DC-resistance values of floor-wiring and work-area cables for digital communications - Edition 1.0
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- DIN VG 95218-21 Cables and insulated wires - Part 21: Multi core insulated wires, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- 29
- DIN VG 95218-21 Cables and insulated wires - Part 21: Multi core insulated wires, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- 29.060
- DIN VG 95218-21 Cables and insulated wires - Part 21: Multi core insulated wires, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- DIN VG 95218-21 Cables and insulated wires - Part 21: Multi core insulated wires, detail standard; Text in German and English
- DIN VG 95218-21 Cables and insulated wires - Part 21: Multi core insulated wires, detail standard; Text in German and English
- DIN VG 95218-2 Cables and insulated wires - Part 2: Generic specification; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95218-66 Cables and insulated wires - Part 66: Cable with double screen, with sheath, triple formation, screened, halogenfree, low fire hazard, detail standard; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-14 Heat shrinkable components - Part 14: Compatibility test for component groups, requirements, tests; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-7 Heat shrinkable components - Part 7: Connector endshells without inner coating, pottable, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-18 Heat shrinkable components - Part 18: Connector endshells with inner coating, detail specification; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- DIN VG 95343-2 Heat shrinkable components - Part 2: Generic standard; Text in German and English
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 62329-2 Heat shrinkable moulded shapes Part 2: Methods of test
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- CENELEC EN 60335-2-15 Household and similar electrical appliances - Safety Part 2-15: Particular requirements for appliances for heating liquids - Incorporates Amendment A11: 2012; Remains Current
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 60050-212 AMD 2 AMENDMENT 2 International Electrotechnical Vocabulary - Part 212: Electrical insulating solids, liquids, and gases - Edition 2.0
- CEI EN 60512-29-100 Connectors for electronic equipment - Tests and measurements Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
- IEC 61156-9 Multicore and symmetrical pair/quad cables for digital communications – Part 9: Cables for channels with transmission characteristics up to 2 GHz – Sectional specification - Edition 1.0
- ISO ISO/IEC TR 29125 Information technology – Telecommunications cabling requirements for remote powering of terminal equipment - First Edition
- DIN VG 95218-21 Cables and insulated wires - Part 21: Multi core insulated wires, detail standard; Text in German and English
- Картотека зарубежных и международных стандартов
International Electrotechnical Commission
Multicore and symmetrical pair/quad cables for digital communications - Part 1-6: Nominal DC-resistance values of floor-wiring and work-area cables for digital communications - Edition 1.0
N IEC TR 61156-1-6
Annotation
This part of IEC 61156, which is a Technical Report, provides informative values for DCresistance of typical installed cables at the time of publication to enable further analysis of cable performance mainly influenced by DC-resistance, such as thermal heating
Автоматический перевод:
Многоядерные и симметрические кабели пары/двора для цифровой связи - Часть 1-6: Номинальные значения DC-сопротивления проводки пола и кабелей рабочей области для цифровой связи - Издание 1.0
Эта часть IEC 61156, который является Техническим отчетом, предоставляет информативные ценности для DCresistance типичных установленных кабелей во время публикации для предоставления возможности дальнейшего анализа кабельной производительности в основном под влиянием DC-сопротивления, такого как тепловое нагревание
Эквиваленты данного стандарта:
- IEC 61156-6 Multicore and symmetrical pair/quad cables for digital communications – Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Work area wiring – Sectional specification - Edition 3.1 Consolidated Reprint
- IEC 61156-1-1 Multicore and Symmetrical Pair/Quad Cables for Digital Communications - Part 1-1: Capability Approval - Generic Specification - Edition 1.0
- IEC PAS 61156-1-4 Multicore and symmetrical pair/quad cables for digital communications – Part 1-4: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Conductor heating of bundled data grade cables for limited power transmission based on IEEE 802.3 - Edition 1.0
- IEC 61156-5-1 Multicore and symmetrical pair/quad cables for digital communications – Part 5-1: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Horizontal floor wiring – Blank detail specification - Edition 3.0
- ISO ISO/IEC 11801 AMD 2 CORR 1 Information technology – Generic cabling for customer premises Amendment 2 (2010) CORRIGENDUM 1 - Second Edition
- ISO ISO/IEC TR 29125 Information technology – Telecommunications cabling requirements for remote powering of terminal equipment - First Edition
- IEC 61156-9 Multicore and symmetrical pair/quad cables for digital communications – Part 9: Cables for channels with transmission characteristics up to 2 GHz – Sectional specification - Edition 1.0
- IEC 61156-10 Multicore and symmetrical pair/quad cables for digital communications – Part 10: Cables for cords with transmission characteristics up to 2 GHz – Sectional specification - Edition 1.0
- DS DS/IEC TR 61156-1-6 Multicore and symmetrical pair/quad cables for digital communications – Part 1-6: Nominal DC-resistance values of floor-wiring and work-area cables for digital communications



