IEC 60728-7-3/FRAGF ED2

Cable networks for television signals, sound signals and interactive services - Part 7-3: Hybrid fibre coax outside plant status monitoring - Power supply to transponder interface bus (PSTIB) IEC 60728-7-3/FRAGF ED2

Scope

IIEC 60728-7-3:2009 specifies requirements for the Hybrid Fibre Coax (HFC) Outside Plant (OSP) Power Supplies (PS). This standard is part of a series developed to support the design and implementation of interoperable management systems for evolving HFC cable net-works. The purpose of the standards is to support the design and implementation of interoperable management systems for evolving HFC cable networks. The Power Sup-ply to Transponder Interface Bus (PSTIB) specification describes the physical (PHY) in-terface and related messaging and protocols implemented at the Data Link Layer (DLL), layers 1 and 2 respectively in the 7-layer ISO-OSI reference model, that support com-munications between compliant transponders and the managed OSP power supplies and other related power equipment to which they interface.
This standard describes the PSTIB PHY and DLL layer requirements and protocols that shall be implemented to support reliable communications between all type 2 and type 3 compliant OSP transponders on the HFC plant and managed OSP power supplies and related hardware. Any exceptions to compliance with this standard will be specifically noted as necessary.

IEC 60728-7-3:2009 cancels and replaces the first edition published in 2003 of which it constitutes a tech-nical revision. This edition includes the following significant technical changes with re-spect to the previous edition:
• All changes from standard ANSI/SCTE 25-3 v1.0 to standard ANSI/SCTE 25-3 v1.1 (2005) have been taken into account in this second edition.
• Clause 7 is based on standard ANSI/SCTE 110 (2005).
• Addition of informative Annex A concerning hybrid management sub-layer.