ITU-T M.620 FRENCH-1988
电路上进行例行测量的方法

METHODS FOR CARRYING OUT ROUTINE MEASUREMENTS ON CIRCUITS


 

 

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标准号
ITU-T M.620 FRENCH-1988
发布日期
1988年
实施日期
废止日期
中国标准分类号
M42
发布单位
IX-ITU
引用标准
ITU-T O.6 ITU-T O.22 ITU-T O.111
适用范围
The measurements should be made by applying to the circuit access points (see Recommendation M.565, § 2) test signals at a level of-10 dBm0:at the frequency of 1020 Hz when measurements are confined to one frequency; at frequencies of 400, 1020 and 2800 Hz, when measurements are made at more than one frequency. Measurements may be made at additional frequencies if required.




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