Pure Copper vs CCA Network Cable: Why the Cheaper Cable Costs More
Copper-clad aluminium (CCA) cable looks the same as pure copper but behaves very differently, especially with PoE cameras. Learn how…
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Knowledge Hub
Blog & Knowledge Hub
Plain-language guides on CCTV, networking, cabling, access control, telephony and security, written by our engineers.
Magnetic Locks, Exit Buttons and Fire Safety: Getting Door Access Right
Choosing the right lock is as important as choosing the reader. Learn the difference between fail-safe and fail-secure, and how…
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How to Choose a UPS: Online vs Line-Interactive, VA vs Watts
Power cuts and voltage swings damage equipment and corrupt data. Learn how UPS types differ, how to size one correctly…
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CCTV Resolution Explained: 2MP vs 4MP vs 8MP (4K)
More megapixels are not always better. Here is how to pick the right camera resolution for each spot, and what…
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PoE Explained: How Power over Ethernet Works for Cameras, Phones and Wi-Fi
PoE sends power and data through one network cable. Learn the PoE standards, how to calculate a power budget, and…
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How Many CCTV Cameras Do You Need? A Room-by-Room Planning Guide
Plan camera numbers by risk, not by guesswork. This step-by-step guide helps homes, shops and offices decide how many cameras…
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Passwords and Two-Factor Authentication: A Simple Guide for Small Offices
Most break-ins start with a weak or reused password. A few simple habits, a password manager and two-factor authentication stop…
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PABX vs IP-PBX: Choosing the Right Office Phone System
Traditional PABX systems are simple and reliable; IP-PBX adds mobile apps, call recording and multi-branch calling. Here is how to…
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Fingerprint, Face or Card? Choosing the Right Access Control Method
Each access control method has strengths and weak points. Compare fingerprint, face recognition, RFID cards and PIN for speed, hygiene,…
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