What should we decide before ordering?
An access system is a chain of decisions
For turnstiles, tripod often calls for staff entrances and moderate flow. The reader captures it, a controller checks the rule, a lock or motor acts, and the system records what happened. Door hardware, fire strategy, power supplies, network links and user administration all affect that chain. The project timeline places the tripod survey before equipment selection, followed by installation and a witnessed not accessible; visible mechanical barrier check. The written decision is not accessible; visible mechanical barrier; the related pick the lane by behaviour review then checks that choice against the site's actual users, opening or camera view, and failure response.
For turnstiles, flap barrier often calls for indoor reception with faster flow. We document free egress, emergency release, manual recovery and the behaviour of each controlled opening when mains power, a controller or a network path is lost. The written decision is sensor tuning and wider cabinet; the related calculate usable throughput review then checks that choice against the site's actual users, opening or camera view, and failure response.
Credentials need a lifecycle, not a one-time setup
For turnstiles, speed gate often calls for premium office lobby. The useful question is who can issue, suspend, replace and audit them. Shared PINs are cheap but hard to attribute. The written decision is higher cost and glass safety; the related pick the lane by behaviour review then checks that choice against the site's actual users, opening or camera view, and failure response.
For turnstiles, full height often calls for hard outdoor perimeter. The written decision is large footprint and escape planning; the related calculate usable throughput review then checks that choice against the site's actual users, opening or camera view, and failure response.
The opening decides the hardware
For turnstiles, tripod often calls for staff entrances and moderate flow. We survey the physical opening first, then check duty cycle, holding force, sensor positions, weather exposure, drainage, cable routes and service access. Maintenance revisits not accessible; visible mechanical barrier, user access and the physical condition that could change this result after handover. The written decision is not accessible; visible mechanical barrier; the related pick the lane by behaviour review then checks that choice against the site's actual users, opening or camera view, and failure response.
For turnstiles, flap barrier often calls for indoor reception with faster flow. Intercom, CCTV, lift control, attendance and visitor management can share events where supported, but each interface is checked by model and protocol. A simpler alternative is retained whenever the site can meet the same need with a staffed, mechanical or non-analytic process. The written decision is sensor tuning and wider cabinet; the related calculate usable throughput review then checks that choice against the site's actual users, opening or camera view, and failure response.
