TPM
Many buildings still run analog camera systems installed ten or fifteen years ago. They record, more or less, so upgrading never feels urgent. Then something happens, and the footage is too blurry to identify anyone. If that sounds familiar, here’s how to decide whether to upgrade, and how to do it sensibly.
Signs it’s time
- You can’t identify faces or plates in footage, even when the camera is close.
- The recorder is unreliable: drives failing, cameras dropping off, gaps in recordings.
- Remote viewing is clumsy or insecure, or relies on old software that no longer gets updates.
- Parts are hard to find when a camera fails.
What IP cameras do better
- Image quality: far more detail, so you can zoom into recorded footage and still see something useful.
- One cable: Power over Ethernet sends power and video over a single network cable, which simplifies installation.
- Better low-light performance and smarter features, such as detecting people or vehicles rather than every moving shadow.
- Secure remote viewing through modern apps, without exposing your network.
Do you have to replace all the cable?
Not necessarily. Two common approaches avoid opening walls:
- Network over coax: converters let new IP cameras run over existing coaxial cable, often including power.
- HD-over-coax cameras: a newer generation of coax-based cameras gives much better images than old analog, using the same cable, as a lower-cost step.
Which one works depends on the condition and length of the existing cable. A short site assessment will tell you.
Upgrade in phases
You don’t have to do everything at once. A common approach is to install the new recorder and replace the most important cameras first, such as entrances and the parking area, then the rest over a year or two, all on the same system.
Don’t skip the basics
Whatever you choose, change every default password, keep firmware up to date and separate cameras from your office or guest network. A modern system is only as secure as its setup.