UL
ANSI/UL 864
Control units and accessories for fire alarm systems
- Publication
- ANSI/UL 864
- Edition
- 10th Edition (2014, effective 2018)
What it requires
Covers fire alarm control units and their accessories, including power supplies and the equipment that carries fire-protective signaling between them. A network switch placed in a fire alarm signaling path is specified as a UL 864 Recognized Component and is powered from the fire alarm system's secondary supply — an ordinary commercial Ethernet switch on the building LAN does not satisfy it.