CCTV Installation
The installation of a new CCTV system is an important opportunity to improve security, image quality, reliability, and the overall effectiveness of site surveillance. When upgrading from an older analogue CCTV system to a modern IP-based solution using network cabling, it is essential to review the existing camera locations, cable routes, and network infrastructure before installation begins. Camera positions that worked well with an older system may not provide the best coverage for new cameras, particularly when considering higher resolutions, wider viewing angles, improved night vision, and the need to minimise blind spots. It is also important to recognise that traditional analogue systems and IP-based systems have different cabling requirements. Depending on the cable type and transmission technology used, older analogue systems may support longer distances between cameras and recording equipment than standard Ethernet connections, which typically have a maximum copper cable channel length of 100 metres. This means existing cable routes may not be suitable for reuse without additional network switches, fibre links, or other appropriate solutions. A full review of the site is therefore essential to identify any limitations and ensure that the new system can deliver the required performance without compromising coverage or reliability.
Network capacity is another critical consideration when deploying a modern IP CCTV system, particularly when installing high-resolution cameras that record continuously. For example, installing 30 cameras operating at 4K resolution and recording 24 hours a day can place a substantial and continuous demand on the network, depending on the frame rate, compression settings, scene complexity, and configured bitrates. If each camera streams at an average of 8 Mbps, the combined incoming video traffic would be approximately 240 Mbps before allowing for additional overheads or other network activity. On a network with outdated switches, limited uplink speeds, congested links, or an underperforming backbone, this additional traffic can create bottlenecks, resulting in delayed video, dropped frames, unreliable live viewing, or difficulties retrieving recordings. Recording storage capacity and write performance must also be considered to ensure footage can be retained for the required period. Reviewing the existing backbone fibre cabling, fibre link speeds, network switches, uplinks, Power over Ethernet (PoE) capacity, and recording infrastructure is therefore essential before installation. By assessing these components in advance, it is possible to identify where upgrades are needed and ensure the network can support the increased traffic generated by modern CCTV equipment while continuing to serve other business-critical systems.
Modern IP cameras can also offer a range of advanced features that go far beyond traditional video recording, providing greater visibility and helping security teams respond more effectively to incidents. Intelligent intruder detection can identify people entering restricted areas, crossing virtual boundaries, or moving through designated zones, helping reduce unnecessary alerts caused by environmental movement when the system is configured appropriately. Automatic Number Plate Recognition (ANPR) can capture and interpret vehicle registration plates, supporting vehicle access control, monitoring vehicle movements, and identifying vehicles against authorised or watch lists where appropriate. Depending on the camera and supporting software, additional features may include people and vehicle classification, line-crossing detection, loitering alerts, object detection, and improved low-light imaging. These capabilities can transform CCTV from a system that simply records events into a proactive security tool that helps operators identify potential incidents more quickly and investigate them more efficiently. Planning for these requirements during the design stage helps ensure the chosen system delivers practical security benefits and remains scalable as site requirements evolve.