| Initiating Device Circuits | SFP-2402: 2 Class B SFP-2404: 4 Class B (Class A option available) |
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| Notification Appliance Circuits (NACs) | SFP-2402: 1 Class B SFP-2404: 2 Class B (Class A option available) |
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| Voice Evacuation Available | Yes: requires direct connect toFireVoice 25/50 |
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| Power | 3.0 amps total system power; SFP-2404 expandable to 6 amps |
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