Fixed Radio Systems - Point-to-point equipment - Plesiochronous Digital Hierarchy (PDH) - Low and medium capacity digital radio systems operating in the frequency band 48.5 GHz to 50.2 GHz (Endorsement of the English version EN 301387 V 1.2.1 (2001-02) as German standard)
固定无线电系统.点对点设备.准同步数字体系(PDH).在48.5 GHz至50.2 GHz频带内工作的中低容量数字无线电系统(作为德国标准认可英文版EN 301387 V 1.2.1(2001-02))