IEC 60728-101-2:2023

Overview

IEC 60728-101-2:2023 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the minimum performance requirements for cable networks delivering television signals, sound signals, and interactive services. Specifically, this part addresses the performance requirements for signals delivered at the system outlet or terminal input, under conditions where all channels are loaded with digital signals. The standard applies to CATV (Community Antenna Television), MATV (Master Antenna Television), and SMATV (Satellite Master Antenna Television) networks including their configurations inside apartment blocks and individual receiving systems.

This standard is essential for operators, network designers, and installers involved in planning, implementing, and maintaining modern cable distribution systems. It defines reference criteria for the summation of signal impairments caused by network components and describes the correct measurement practices to ensure high-quality signal delivery to end-users.

Key Topics

• Performance Requirements at System Outlet:
  Establishes the minimum and maximum signal levels, signal-to-intermodulation and noise ratios, and isolation parameters necessary to guarantee reliable reception and operation at the subscriber’s premises.

• Impairment Summation Criteria:
  Details how impairments from different parts of the cable network - including headend, trunk, distribution, and home network segments - are accumulated to assess overall system performance.

• Applicable Frequency Range:
  Covers networks operating between 5 MHz and 3,300 MHz for typical cable infrastructures, and up to 6,000 MHz for advanced home distribution techniques using wireless communication in the 5 GHz to 6 GHz band.

• Measurement Methods:
  Provides guidance on how to measure the operational characteristics of downstream cable networks, supporting objective assessment and compliance verification.

• Signal Formats and Network Types:
  Recognizes various transmission media within the home network, such as coaxial, balanced pair, optical fiber cables, and wireless links, and evaluates their impact on signal quality at system outlets.

Applications

• Network Planning and Design:
  Enables network architects to specify and validate system performance from the headend through to the end-user outlets, ensuring all parts of the CATV, MATV, or SMATV network meet operational criteria.

• Compliance and Quality Assurance:
  Guides installers and maintenance engineers in performing onsite measurements and troubleshooting signal degradation, ensuring compliance with international best practices.

• Multi-Dwelling and Commercial Buildings:
  Particularly relevant for apartment complexes, hotels, hospitals, and office environments, where signals from a central antenna or satellite are distributed internally to multiple outlets or terminal devices.

• Integration with Interactive and Digital Services:
  Supports consistent delivery of high-quality digital television, audio, and interactive services, vital for smart homes and modern multimedia applications.

• Transition to All-Digital Networks:
  Facilitates the migration from analogue to all-digital loading, ensuring compatibility and performance as service providers modernize their infrastructure.

Related Standards

• IEC 60728-101:2016:
  Defines system performance for forward paths loaded exclusively with digital channels, supplementing the requirements in this standard.

• IEC 60728-101-1:2023:
  Details RF cabling requirements for two-way home networks under all-digital channel load scenarios.

• IEC 60966-2 Series:
  Specifies standards for radio frequency and coaxial cable assemblies for TV and radio receivers, detailing different frequency ranges and connector types.

• IEC 60728-3:2017:
  Covers requirements for active wideband equipment used in coaxial cable networks.

• IEC 60728-10:
  Describes performance requirements and measurement methods for return path signals in cable networks.

Adhering to IEC 60728-101-2:2023 ensures consistent, reliable, and high-standard signal delivery in digital cable television and multimedia networks, optimizing end-user experience and supporting network future-readiness.