Four-door access-control reference design with shared controller, credential readers, lock power, REX and door monitoring.
Small office / retail / clinic · Interlogix
Four-door access-control reference design with shared controller, credential readers, lock power, REX and door monitoring.
The BOM below is product-based: controller, reader, lock/output hardware, REX, door position and access-power components are tied to live Safsale product cards. Treat this as a purchasing baseline and adjust it to the actual door hardware, credential policy, wire distances, lock current and site requirements.
These links open active planning calculators.
Size continuous and intermittent lock/controller/reader loads with design headroom.
Open toolCalculate required amp-hours from standby and alarm/unlock current and desired backup time.
Open toolEstimate voltage at the lock or reader from AWG, current, one-way cable length and source voltage.
Open toolEstimate controller count, reader channels, lock outputs and power zones from door count.
Open toolEstimate people per minute and lane count from cycle time, utilization and peak demand.
Open toolSize switch PoE budget for readers, controllers, cameras and high-power edge devices.
Open toolEstimate reader, lock, REX/contact and network cable quantities from door count and average run lengths.
Open toolEach row opens the real Safsale product card. Quantities are reference quantities for this design.
The reference BOM includes the access controller or standalone control device, credential readers where applicable, lock or controlled-output hardware, access power, request-to-exit and door-position components selected from live Safsale product cards.
Often yes, but the interface and electrical requirements must match. Confirm Wiegand or OSDP compatibility, relay logic, lock voltage/current, fail-safe versus fail-secure operation, power budget and any manufacturer-specific requirements.
Add the controller, readers, lock loads and auxiliary devices, account for continuous versus intermittent lock current, then add design headroom. Use the Safsale Access Power and Battery Backup calculators before selecting a supply or battery set.
No. Egress, fire alarm release, accessibility, door hardware and local AHJ requirements depend on the actual opening and occupancy. The reference design is a purchasing and planning baseline, not a permit drawing.
Yes. Use the related designs or request a project-specific quote for a different door count, reader technology, lock type, backup duration, cable type or management platform.
Safsale can quote alternate readers, lock types, controllers, battery backup, cable, power distribution and door counts.