Alarm systems. Alarm transmission systems and equipment - Requirements for equipment used in systems with voice communicators using the public switched telephone network has-hardcopy operators and their surroundings

operators and their surroundings

Squareness

machinery parts

if such applications require additional or other requirements or tests than those given in this standard

In peeling tests

Alarm systems. Alarm transmission systems and equipment - Requirements for equipment used in systems with voice communicators using the public switched telephone network has-hardcopy operators and their surroundingsAlarm systems Alarm transmission systems and equipment Part 2 4: Requirements for equipment used in systems with voice communicators using the public switched telephone network Executive summary Requirements for alarm transmission equipment used in voice communicator systems utilizing the public switched telephone network. Abstract This European Standard specifies additional requirements to those specified in EN 50136 2 1 for equipment used in voice