Security & Low-Voltage Engineering Calculations Hub

Run the numbers that turn a device count into storage, bandwidth, PoE, UPS and cabling requirements.

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U.S. project workflow Planning-first Connected to live Safsale resources

HOW THIS FITS THE PROJECT

Engineering calculations are where a system stops being a picture and starts becoming a load. Every camera consumes bandwidth, storage and PoE. Every lock and reader creates current draw. Every switch and recorder changes UPS runtime. Cable length affects voltage drop and sometimes the transport medium itself.

The quick multi-calculator below combines several of the most common first-pass checks into one screen. It is deliberately transparent: the assumptions are visible so a contractor or engineer can challenge them instead of receiving a mysterious answer.

For deeper work, the Safsale Engineering Tools library contains dedicated storage, bandwidth, PoE, UPS, battery, voltage-drop, fire-alarm, intercom, gate, rack and cabling calculators.

INTERACTIVE WORKSPACE

Use the page — do not just read it

These are planning tools. Final design, code, licensing, manufacturer limits and project-specific requirements still require verification.

Cameras Avg. bitrate / camera (Mbps) Retention (days) Avg. PoE watts / endpoint Other protected rack load (W) Design headroom

ENGINEERING SNAPSHOT

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CONNECTED SAFSALE RESOURCES

Keep moving without starting over

פתרונות מתוכננים מראשReference architectures, BOMs and calculators. סוגי מוצרים A–ZJump into live catalog product families. Engineering ToolsOpen the dedicated calculator library. Smart Link AcademyGuides and technical planning content. הגדרה והתקנהInstallation-oriented service categories. Project ReviewSend the scope for project-specific pricing and review.

QUESTIONS BEFORE YOU USE THE RESULT

Engineering Calculations FAQ

Are the calculations suitable for final engineering?

They are first-pass planning tools. Final product limits, codec behavior, duty cycle, environmental conditions and manufacturer data must be verified for the selected design.

Why does storage differ from an NVR manufacturer calculator?

Bitrate assumptions, recording schedule, overhead, RAID, motion recording and codec settings can materially change retention. Use the same project assumptions when comparing tools.

Do you include spare PoE capacity?

Yes. The quick tool allows design headroom so the switch is not sized exactly at the connected nominal load.

OTHER PROJECT WORKSPACES

Move to the next engineering task

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Scope & Basis of Design Device Schedules & BOM Takeoffs & Layout Support System Architecture Budgetary & Formal Pricing Alternates & Value Engineering Submittal & Documentation Support Procurement & Logistics Installation Coordination Commissioning & Handover Support Design Revision Support

PROJECT-SPECIFIC REVIEW

Use the workspace to get organized, then bring the real plans and constraints.

Safsale can use the result as a starting point for product selection, project pricing, documentation or procurement support.

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