标准摘要
[中文适用范围]： 规定了混合光纤同轴电缆 (HFC) 外部设备 (OSP) 物理 (PHY) 层规范的要求，并且是 SCTE 下的混合管理子层 (HMS) 小组委员会开发的系列规范的一部分。 H 的目的 [外文原描述]： IEC 60728-7-1:2003 specifies requirements for The Hybrid Fibre Coax (HFC) Outside Plant (OSP) Physical (PHY) Layer Specification and is part of the series of specifications developed by the Hybrid Management Sub-Layer (HMS) subcommittee under the SCTE. It describes the PHY layer requirements that must be implemented by all Type 2 and Type 3 compliant OSP HMS transponders on the HFC plant and the controlling equipment in the head-end. Any exceptions to compliance with this standard will be specifically noted herein as necessary. Refer to Table 1 for a full definition of the type classifications. This bilingual version (2012-08) corresponds to the monolingual English version, published in 2003-10.
英文名称Cable networks for television signals, sound signals and interactive services - Part 7-1: Hybrid Fibre Coax Outside Plant status monitoring - Physical (PHY) layer specification