Always-On Hardware Constraints
Readers and controllers often sit in unconditioned corridors or outdoor housings. Conformal coat, corrosion-resistant finishes and robust terminal blocks are common requests.
Lifecycle matters: security install bases last years - flag preferred IC brands and last-time-buy risks.
Environment & Application Constraints
- Indoor panels vs outdoor readers (UV, moisture, temperature).
- PoE or low-voltage power constraints on board design.
- Tamper switches and mechanical keep-outs should appear on the assembly drawing.

