What this guide helps with
A field guide for access-control technicians working through strike compatibility, fail state, voltage/current, relay logic, suppression, alignment, and closeout testing.
Use this guide when
- Surveying a door, frame, lockset, latch/deadlatch, egress hardware, and fire-rating constraints before selecting a strike
- Confirming fail-secure or fail-safe behavior and the intended relay logic
- Measuring voltage at the power supply and at the strike under load
- Diagnosing a strike that does not release, stays released, buzzes, overheats, chatters, or binds mechanically
Systems and work covered
- Cylindrical, mortise, rim-exit, specialty, surface/no-cut, and monitored strike applications
- 12/24 VDC and applicable AC strike power, current draw, duty rating, voltage drop, and battery-backed supplies
- Dry and wet outputs, COM/NO/NC relay contacts, DC diode placement, and manufacturer-approved AC suppression
- Door position, REX, latch monitoring, mechanical alignment, and acceptance documentation
Built for the work in front of you
Survey the complete opening
Verify the lock, latch, frame, swing, egress hardware, monitoring, rating, and project requirements before touching wiring.
Choose strike and fail behavior
Match the strike style and listing to the hardware, then verify fail-secure or fail-safe behavior for the actual opening.
Prove power and relay logic
Check voltage, current, duty, under-load behavior, voltage drop, COM/NO/NC logic, wet/dry outputs, and suppression.
Troubleshoot and close out
Separate binding and preload from electrical faults, test release/relock/monitoring, and leave measured values and wiring notes.
Source scope. Summarized from the 16-page v1.0 field guide. Manufacturer instructions, opening listings, adopted code, and AHJ direction remain authoritative.
Ready when you need it
Download the current PDF for field reference. Save this page to My Vault to find it again quickly.
