Standard No.:	GB/T 3971.3-1983
English Name:	The test methods for the technical specifications of multi-frequency register signaling for telephone automatic switching network
Chinese Name:	电话自动交换网多频记发器信号技术指标测试方法
Chinese Classification:	M15    Communication network performance index and testing
Professional Classification:	GB    National Standard
Issued by:	NBS
Issued on:	1983-1-2
Implemented on:	1984-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	244.0
Delivery:	via email in 1~3 business day

本测试方法以GB 3377—82《电话自动交换网多频记发器信号方式》为依据。测试内容包括：a.多频设备阻抗；b.多频发送频率；c.多频发送电平、泄漏电平、谐波畸变及互调失真；d.多频接收动作范围、不动作和不识别要求；e.多频互控周期。