Standard No.:	GB/T 15838-1995
English Name:	Measuring methods for the performances of switching equipment clocks in digital synchronous network
Chinese Name:	数字同步网中交换设备时钟性能的测试方法
Chinese Classification:	M15    Communication network performance index and testing
Professional Classification:	GB    National Standard
ICS Classification:	33.040.40 33.040.40    Data communication networks 33.040.40
Issued by:	STSB
Issued on:	1995-01-02
Implemented on:	1996-6-1
Status:	abolished
Superseded by:	GB/T 15838-2008 Test methods for the performances of switching equipment clocks in digital network
Superseded on:	2009-4-1
Abolished on:	2009-04-01
Language:	English
File Format:	PDF
Word Count:	6500 words
Price(USD):	190.0
Delivery:	via email in 1~3 business day

本标准对数字交换设备时钟的下列性能规定了测试方法：a.抖动和漂动性能；b.牵引范围；c.第二级、第三级时钟输出端的相位稳定性；d.监测、告警和控制性能检测。本标准适用于数字交换设备的时钟出厂测试和数字网内新装各种数字交换设备的时钟现场测试。