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Collapse <b>L series</b>: Construction, installation and protection of cables and other elements of outside plantL series: Construction, installation and protection of cables and other elements of outside plant
L.1: Construction, installation and protection of telecommunication cables in public networks
L.2: Impregnation of wooden poles
L.3: Armouring of cables
L.4: Aluminium cable sheaths
L.5: Cable sheaths made of metals other than lead or aluminium
L.6: Methods of keeping cables under gas pressure
L.7: Application of joint cathodic protection
L.8: Corrosion caused by alternating current
L.9: Methods of terminating metallic cable conductors
L.10: Optical fibre cables for duct and tunnel application
L.11: Joint use of tunnels by pipelines and telecommunication cables, and the standardization of underground duct plans
L.12: Optical fibre splices
L.13: Performance requirements for passive optical nodes: Sealed closures for outdoor environments
L.14: Measurement method to determine the tensile performance of optical fibre cables under load
Withdrawn: L.15: Optical local distribution networks – Factors to be considered for their construction
Withdrawn: L.16: Conductive plastic material (CPM) as protective covering for metal cable sheaths
L.17: Implementation of connecting customers into the public switched telephone network (PSTN) via optical fibres
L.18: Sheath closures for terrestrial copper telecommunication cables
L.19: Multi-pair copper network cable supporting shared multiple services such as POTS, ISDN and xDSL
L.20: Creation of a fire security code for telecommunication facilities
L.21: Fire detection and alarm systems, detector and sounder devices
L.22: Fire protection
L.23: Fire extinction – Classification and location of fire extinguishing installations and equipment on premises
L.24: Classification of outside plant waste
L.25: Optical fibre cable network maintenance
L.26: Optical fibre cables for aerial application
L.27: Method for estimating the concentration of hydrogen in optical fibre cables
L.28: External additional protection for marinized terrestrial cables
L.29: As-laid report and maintenance/repair log for marinized terrestrial cable installation
L.30: Markers on marinized terrestrial cables
L.31: Optical fibre attenuators
L.32: Protection devices for through-cable penetrations of fire-sector partitions
L.33: Periodic control of fire extinction devices in telecommunication buildings
L.34: Installation of Optical Fibre Ground Wire (OPGW) cable
L.35: Installation of optical fibre cables in the access network
L.36: Single-mode fibre optic connectors
L.37: Optical branching components (non-wavelength selective)
L.38: Use of trenchless techniques for the construction of underground infrastructures for telecommunication cable installation
L.39: Investigation of the soil before using trenchless techniques
L.40: Optical fibre outside plant maintenance support, monitoring and testing system
L.41: Maintenance wavelength on fibres carrying signals
Withdrawn: L.42: Extending optical fibre solutions into the access network
L.43: Optical fibre cables for buried application
L.44: Electric power supply for equipment installed as outside plant
L.45: Minimizing the effect on the environment from the outside plant in telecommunication networks
L.46: Protection of telecommunication cables and plant from biological attack
L.47: Access facilities using hybrid fibre/copper networks
L.48: Mini-trench installation technique
L.49: Micro-trench installation technique
L.50: Requirements for passive optical nodes: Optical distribution frames for central office environments
L.51: Passive node elements for fibre optic networks – General principles and definitions for characterization and performance evaluation
Withdrawn: L.52: Deployment of Passive Optical Networks (PON)
L.53: Optical fibre maintenance criteria for access networks
L.54: Splice closure for marinized terrestrial cables (MTC)
L.55: Digital database for marine cables and pipelines
L.56: Installation of optical fibre cables along railways
L.57: Air-assisted installation of optical fibre cables
L.58: Optical fibre cables: Special needs for access network
L.59: Optical fibre cables for indoor applications
L.60: Construction of optical/metallic hybrid cables
L.61: Optical fibre cable installation by floating technique
L.62: Practical aspects of unbundling services by multiple operators in copper access networks
L.63: Safety procedures for outdoor installations
L.64: ID tag requirements for infrastructure and network elements management
Withdrawn: L.65: Optical fibre distribution of access networks
L.66: Optical fibre cable maintenance criteria for in-service fibre testing in access networks
L.67: Small count optical fibre cables for indoor applications
L.68: Optical fibre cable maintenance support, monitoring and testing system for optical fibre cable networks carrying high total optical power
L.69: Personal digital assistant requirements and relevant data structure for infrastructure and network elements management
L.70: Managing active electronics in the outside plant
L.71: Design, construction, and installation of network cables for broadband access including metallic networks connected to optical fibre networks
L.72: Databases for optical access network infrastructure
L.73: Methods for inspecting and repairing underground plastic ducts
L.74: Maintenance of cable tunnels
L.75: Test, acceptance and maintenance methods of copper subscriber pairs
L.76: Copper loop requirements for various technologies including indoor and structured cabling
L.77: Installation of optical fibre cables inside sewer ducts
L.78: Optical fibre cable construction for sewer duct applications
L.79: Optical fibre cable elements for microduct blowing-installation application
L.80: Operations support system requirements for infrastructure and network elements management using ID techonology
L.81: Monitoring systems for outside plant facilities
L.82: Optical cabling shared with multiple operators in buildings
L.83: Low impact trenching technique for FTTx networks
L.84: Fast mapping of underground networks
L.85: Optical fibre identification for the maintenance of optical access networks
L.86: Considerations on the installation site of branching components in passive optical networks for fibre to the home
L.87: Optical fibre cables for drop applications
L.88: Management of poles carrying overhead telecommunication lines
L.89: Design of suspension wires, telecommunication poles and guy-lines for optical access networks
L.90: Optical access network topologies for broadband services
L.92: Disaster management for outside plant facilities
L.93: An optical fibre cable maintenance support, monitoring and testing system for optical fibre cable networks for trunk lines
L.1000: Universal power adapter and charger solution for mobile terminals and other hand-held ICT devices
L.1001: External universal power adapter solutions for stationary information and communication technology devices
L.1005: Test suites for assessment of the universal charger solution
L.1010: Green batteries solution for mobile phones and other hand-held information and communication technology devices
L.1100: Procedure for recycling rare metals in information and communication technology goods
L.1101: Measurement methods to characterize rare metals in information and communication technology goods
L.1200: Direct current power feeding interface up to 400 V at the input to telecommunication and ICT equipment
L.1201: Architecture of power feeding systems of up to 400 VDC
L.1300: Best practices for green data centres
L.1310: Energy efficiency metrics and measurement methods for telecommunication equipment
L.1320: Energy efficiency metrics and measurement for power and cooling equipment for telecommunications and data centres
L.1340: Informative values on the energy efficiency of telecommunication equipment
L.1400: Overview and general principles of methodologies for assessing the environmental impact of information and communication technologies
L.1410: Methodology for the assessment of the environmental impact of information and communication technology goods, networks and services
L.1420: Methodology for energy consumption and greenhouse gas emissions impact assessment of information and communication technologies in organizations
L.1430: Methodology for assessment of the environmental impact of information and communication technology greenhouse gas and energy projects
L.1500: Framework for information and communication technologies (ICTs) and adaptation to the effects of climate change
Expand <b>L supplements</b>: Supplements to ITU-T L-series RecommendationsL supplements: Supplements to ITU-T L-series Recommendations