Alarm systems - Alarm transmission systems and equipment - Part 2-4: Requirements for equipment used in systems with voice communicators using the public switched telephone network
NORM herausgegeben am 4.12.1998
Designation standards: UNE-EN 50136-2-4:1998
Note: UNGÜLTIG
Publication date standards: 4.12.1998
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE