標(biāo)準(zhǔn)號(hào)：BS EN 60728-7-1-2005
中文標(biāo)準(zhǔn)名稱：電視信號(hào)、聲音信號(hào)和交互信號(hào)設(shè)備用電纜網(wǎng)絡(luò).混合光纖同軸電纜外部設(shè)備狀況監(jiān)測(cè).物理層(PHY)規(guī)范
英文標(biāo)準(zhǔn)名稱：Cable networks for television signals, sound signals and interactive services - Hybrid fibre coax outside plant status monitoring - Physical (PHY) layer specification
標(biāo)準(zhǔn)類型：M33;M11
發(fā)布日期：2005/3/16 12:00:00
實(shí)施日期：2005/3/16 12:00:00
中國(guó)標(biāo)準(zhǔn)分類號(hào)：M33;M11
國(guó)際標(biāo)準(zhǔn)分類號(hào)：33.060.40
適用范圍：This part of IEC 60728 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. The purpose of the HMS specification is to support the design and implementation of interoperable management systems for evolving HFC cable networks. The HMS Physical (PHY) Layer Specification describes the physical layer portion of the protocol stack used for communication between HMS-compliant transponders interfacing to managed outside plant network elements (NE) and a centralized head-end element (HE). This standard 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. Electromagnetic Compatibility (EMC) is not specified in this standard and is left to the vendor to ensure compliance with local EMC regulatory requirements. Other than operating temperature, physical parameters such as shock, vibration, humidity, etc., are also not specified and left to the vendor's discretion. Transponder type classifications referenced within the HMS series of standards are defined in Table 1.