As per the NFPA 76, is there any specific concern to have the Fire Alarm Systems run on a standard IT Ethernet Network built with:
- standard Cat-6 copper
- OS2 Single Mode Fiber
- switches such as the one provided by CISCO (Catalyst & Nexus)
There are definitely concerns and limitation with this application. Although the recent edition of NFPA 72 now allows Class N Pathways (use of Ethernet), there are certain restrictions such as pathway redundancy. Ethernet switches, as part of a fire alarm system, are currently required to carry a UL 864 listing and operate on system (primary and secondary) power. There are a few switches (Cisco included) on the market today. However, you won't find many peripheral devices (detectors, pull stations, I/O modules, etc) operating on Ethernet on the market--YET...
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