What "3572" Refers To
A search for "3572" returns a specific piece of architectural door hardware rather than a computer: the Lockwood Synergy® 3572 Vestibule Mortice Lock, part of the Synergy® 3570 Series and supplied by ASSA ABLOY. It is a heavy-duty, fire-rated mortice lock designed for commercial and institutional buildings — schools, hospitals, hotels, clubs and industrial facilities — and is specified by its primary lock code, 3572SC, which can then be adapted to different latching functions.
Key technical details from manufacturer documentation include a 60 mm standard backset (with 89 mm and 127 mm extended backsets available on application), a 15 mm stainless steel latchbolt with a separate auxiliary stainless steel deadlatching bolt, and a 19 mm stainless steel deadbolt. Case and cover plates use a high-purity zinc alloy body with stainless steel cover plates, springs are high-grade corrosion-protected spring steel, and the lock suits door thicknesses of 32 mm to 50 mm, with thicker-door versions available on request.
Why This Matters for Industrial Computing
Mortice locks like the 3572 sit at the mechanical end of a building's security layer. The electronic end — card readers, door controllers, request-to-exit sensors, alarm panels and CCTV — is where industrial computers, embedded PCs and thin clients do the work. A single industrial PC often runs the access control server, logs every door event, manages credential databases and bridges to the building management system.
That means the computer has to survive the same environments the lock does: plant rooms with dust and heat, cabinets with no airflow, 24/7 duty cycles and power that isn't always clean. Fanless industrial PCs are commonly chosen for exactly this reason — no moving parts to clog with dust, no filters to service, and wide-temperature operation with a DC input that tolerates voltage sag.
Typical Specifications for Access Control & Building Security
| Requirement | Typical Need | Why |
|---|---|---|
| Serial ports | 2–4× RS-232/RS-485 | Legacy door controllers, alarm panels, PLCs |
| Ethernet | 1–2× Gigabit | Controller network + separate management LAN |
| USB | 2× USB 3.2 Gen 2, 1× USB-C | Credential readers, HID devices, commissioning |
| CPU | Intel Celeron/N-series up to Core i3/i5 | Enough headroom for databases and video |
| Memory / Storage | 8–16 GB RAM, 256 GB–1 TB SSD | Event logs, OS, local buffering |
| OS | Windows 11 Pro / IoT, Linux | Vendor software compatibility |
| Mounting | DIN-rail, VESA, wall or cabinet | Plant room and kiosk installations |
| Cooling | Fanless | Dust, reliability, silent operation |
Use Cases
Access control and security deployments are one of the largest application areas for compact industrial computers. They run door controller management software, host video management systems (VMS) for a handful of IP cameras,
