NFPA 241 (2027): Construction fire alarm planning
Emergency notification guidance is evolving. Understand the field implications without confusing proposed NFPA 72 text with enforceable code.
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NICET Fire Alarm Practice Tests
Study with randomized practice sets for NICET Fire Alarm Systems Levels I–IV. The practice hub stays inside your FireAlarmGuy member account so you can keep training resources in one place.
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Field Guides
Troubleshooting, interfaces, testing, calculations, documentation, and system fundamentals.
Browse guides → 02Industry News
Discontinued equipment, product changes, software licensing, recalls, and code updates.
See updates → 03AHJ Watch
Connecticut code status, permit and inspection changes, and verified jurisdiction information.
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What changed
New ASD guidance for challenging environments
The FIA updates guidance on high-rack warehouses, high airflow, sampling pipework, and testing. UK guidance; not new U.S. code.
Read update →Silent Knight HFSS and 6000 Series firmware changes
Field notes on HFSS 8.1.0.11, 6000 Series firmware 7.00.21, compatibility, and service impacts.
Read software update →Popular field guides
Solve common problems
Troubleshooting
Ground Fault Troubleshooting
Divide, confirm, and isolate the fault without losing the evidence.
NetworksNetwork & Fiber Troubleshooting
Use topology, node-loss patterns, and controlled testing to find the failing segment.
CalculationsBattery Sizing
Understand standby loads, alarm loads, duration, and field verification.
InterfacesFire Pump Monitoring
Separate required fire alarm monitoring points from controller functions.
AHJ Watch
Connecticut first. Verified before published.
Track statewide code adoption plus 12 verified local permit, plan-review, inspection, fee, and acceptance-test guides.
Current statewide baseline
2022 Connecticut codes
The planned 2026 effective date has been delayed pending state approval.
Source checked Aug. 27, 2026Quick tools
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Fire Alarm Calculators
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Replacement Assistant
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Fire alarm battery calculator · Voltage drop calculator · Panel cheat sheets