CCTV Installer Tools

Practical field calculators by SECUREONIX for CCTV storage, network planning, PoE sizing, lens selection and cable performance.

SECUREONIX field tools: use these values for planning and training. Always confirm the final design with camera, NVR, switch and cable manufacturer specifications.

HDD Storage Calculator

Estimate recorder storage for the required retention period.

Cameras

Bitrate / camera (Mbps)

Retention (days)

Recording schedule

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Network Bandwidth

Size an NVR uplink or switch.

Total cameras

Average bitrate / camera (Mbps)

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PoE Power Budget

Check usable switch power with headroom.

PoE cameras

Max watts / camera

Switch budget (W)

Allowance

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Camera Coverage

Find scene width and pixels per metre.

Sensor width (mm)

Lens focal length (mm)

Distance to target (m)

Resolution

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Lens Estimator

Choose a lens for the desired view width.

Sensor width (mm)

Target distance (m)

Desired scene width (m)

Use case

—Choose the nearest available fixed or varifocal lens.

12V DC Voltage Drop

Estimate voltage delivered at the camera.

One-way cable run (m)

Camera current (A)

Copper size (mm²)

Supply voltage

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CCTV Installer Tools

HDD Storage Calculator

Network Bandwidth

PoE Power Budget

Camera Coverage

Lens Estimator

12V DC Voltage Drop

Build practical CCTV skills with SECUREONIX