Maximum Permissible Value for the Absolute Power Level of a Signalling Pulse - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 2 pp
标准号:ITU-T Q.20-1989
标准名称: 信令脉冲的绝对功率电平(相对于1mW的功率)最大允许值
英文名称:Maximum Permissible Value for the Absolute Power Level of a Signalling Pulse - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 2 pp
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):M73