Why ELV design should start before device selection
Cameras, readers and speakers only perform when pathways, power and use-cases are fixed first. A practical sequence for project teams.
Most ELV issues on site are not product failures — they are sequencing failures. Teams jump to brand and model before the building's risk zones, cable routes and operational habits are clear.
A reliable sequence is simple: map users and threats, define zones, size the backbone (power + data), then select devices that fit that architecture. Skipping the middle step is how projects inherit rework.
At Krishna Infosys we treat survey and architecture as part of delivery, not optional extras. That is how CCTV storage, access rules and PA zones stay coherent after handover.
If you are planning a campus or plant upgrade, insist on a written coverage and pathway plan before any PO for endpoints is released.