EN 50157-2-3:1998

Overview

EN 50157-2-3:1998 is a European standard developed by the CLC that defines interconnection requirements for domestic and similar electronic equipment using AV.link communication protocols. Specifically, this standard focuses on system oriented applications in AV.link mode 2. It enables AV.link capable devices such as televisions, VCRs, and other home entertainment equipment to communicate via basic system commands to control each other's functions. Communication occurs through contact 10 of the peri-television connector specified under EN 50049-1.

This standard facilitates interoperability and coordinated operation between various consumer electronics, enhancing user convenience and system integration within home environments.

Key Topics

• AV.link Mode 2 Communication: Defines the communication mode where devices send and receive system oriented commands to perform control functions.
• Basic System Oriented Commands: Specifications of command protocols that allow devices to control functions like playback, recording, power management, and input switching.
• Physical Connection Interface: Uses contact 10 on the peri-television connector per EN 50049-1 standards for signal transmission.
• Interoperability: Ensures that AV.link enabled devices from different manufacturers can seamlessly interact and respond to system commands.
• Command Protocol Specification: Details the syntax, timing, and protocol rules necessary to execute reliable communication in AV.link mode 2.

Applications

• Home Entertainment Systems: Enables integrated operation of TVs, VCRs, DVD players, and audio equipment through AV.link system commands, improving user control and reducing remote complexity.
• Device Control and Synchronization: For example, an AV.link television can send commands to an AV.link VCR to start playback or recording, providing a unified user experience.
• Multi-device Automation: Supports basic automation scenarios such as simultaneous powering on or off multiple devices in a home AV setup.
• Consumer Electronics Manufacturing: Provides manufacturers with a standardized interface and protocol to ensure compatibility and ease of integration within multi-device home systems.
• Technical Development and Testing: Essential reference for engineers designing system oriented communication features in AV.link enabled consumer devices.

Related Standards

• EN 50049-1: Defines the peri-television connector specifications, including the contact used for AV.link communication (contact 10).
• EN 50157-1 (Part 1): Covers general requirements for interconnection of domestic electronic equipment.
• IEC 61883: Standard for digital interface for consumer audio and video equipment supporting IEEE 1394 - relevant for modern digital AV interconnections.
• HDMI CEC Protocol: Although different in implementation, HDMI Consumer Electronics Control (CEC) shares the goal of system-oriented device command and control over consumer AV devices.
• AV.link Part 2-1 and 2-2: Other parts of the AV.link standards series that cover different communication modes and commands not covered in mode 2.

Keywords: AV.link standard, EN 50157-2-3:1998, domestic electronics interconnection, AV.link mode 2, system oriented commands, consumer electronics interoperability, peri-television connector, home entertainment device control, AV.link communication protocol, CLC standards.