Standard No.:	DL/Z 790.52-2005
English Name:	Distribution automation using distribution line carrier system-Part 5-2:Lower layer profilers-Frequency shift keying(FSK) profile
Chinese Name:	采用配电线载波的配电自动化 第5-2部分：低层协议集 移频键控(FSK)协议
Chinese Classification:	F21    Electric power system
Professional Classification:	DL    Professional Standard - Electricity
ICS Classification:	29.240.01 29.240.01    Power transmission and distribution networks in general 29.240.01
Issued by:	NDRC
Issued on:	2005-11-28
Implemented on:	2006-6-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	13000 words
Price(USD):	390.00
Delivery:	via email in 1~3 business day

DL790的本部分描述了一种低层协议，包括MAC(介质访问控制)子层、PLS(物理信令)子层和MAU(配电线通信附件)，目的是建立用于中压、低压配电线载波系统的有效通信标准。
本部分使用的技术是FSK 移频键控调制。其优点是价格低廉、抗噪声和抗干扰的能力强。此外，只要知道传输介质的几个参数，就可以预计信号的传输质量。如采用标准的信号接口，本协议也适用于其他调制方式。