Standard No.:	YD/T 1947-2009
English Name:	Technical Requirement of Physical Layer for Extended Reach Ethernet based on 2D-PAM3 and 4D-PAM5
Chinese Name:	基于2D-PAM3和4D-PAM5编码方法的距离增强型以太网物理层技术要求
Chinese Classification:	M30    Communication equipment in general
Professional Classification:	YD    Professional Standard - Telecommunication
ICS Classification:	35.100.10 35.100.10    Physical layer 35.100.10
Issued by:	Ministry of Industry and Information Technology
Issued on:	2009-6-15
Implemented on:	2009-9-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	27000 words
Price(USD):	810.00
Delivery:	via email in 1~3 business day

本标准规定了基于2D-PAM3和4D-PAM5编码方法的距离增强型以太网物理层接口的技术要求，包括功能要求、性能指标、电气特性、机械特性和环境要求等。
本标准仅适用于在1对或2对三类/五类双绞线上，采用2D-PAM3编码方法；在4对五类双绞线上采用4D-PAM5编码方法，以10Mbit/s/100Mbit/s速率传输数据的距离增强型以及网接口。