Alarm systems. Alarm transmission systems and equipment. Requirements for equipment used in systems with digital communicators using the public switched telephone network— 8 стр.
Alarm systems. Electromagnetic compatibility. Product family standard. Immunity requirements for components of fire, intruder, hold up, CCTV, access control and social alarm systems— 28 стр.
Alarm systems. Alarm transmission systems and equipment. Requirements for systems with digital communicators using the public switched telephone network— 8 стр.