DIN EN 60835-2-6-1995 数字微波无线电传输系统设备的测量方法.第2部分:地面无线电中继系统的测量方法.第6节:保护开关
Methods of measurement for equipment used in digital microwave radio transmission systems - Part 2: Measurements on terrestrial radio-relay systems; section 6: Protection switching (IEC 60835-2-6:1995); German version EN 60835-2-6:1995