What is the maximum device capacity on the NFS2-640 in FlashScan mode vs. CLIP mode, and can you mix protocols on the same SLC loop?

NotifierNFS2-640Mar 23, 2026
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The NFS2-640 supports a maximum of 318 devices per loop in FlashScan mode, consisting of 159 detectors and 159 modules (Page 1 of 8) [1].

In CLIP mode, the capacity is limited to 99 detectors and 99 modules for a total of 198 devices per loop (Page 44) [1].

Protocols can be mixed on the same SLC loop with specific restrictions: you may program all detectors as CLIP and all modules as FlashScan, which allows for 99 CLIP detectors and 159 FlashScan modules (Page 44) [1].

However, you must never program modules as CLIP and detectors as FlashScan on the same SLC (Page 44) [1].

FlashScan-capable devices can be configured to operate in either mode (Page 44) [1].

AI-generated — verify against your panel's documentation and applicable codes (NFPA 72, local AHJ).

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