EN 61162-420-2002 海上导航和无线电通信设备及系统.数字接口.第420部分:多通话器和多受话器.船舶系统互连.围罩梯口标准要求和基本围罩梯口标准IEC 61162-420:2001
Maritime Navigation and Radiocommunication Equipment and Systems - Digital Interfaces Part 420: Multiple Talkers and Multiple Listeners - Ship Systems Interconnection - Companion Standard Requirements and Basic Companion Standards