The technical starting position
A camera at the end of a long route can capture images during the day and may fail during night shifts or bad weather. The total route is then more relevant than a single separate length.
advice
Evaluate PoE cable distance for camera
A longer PoE route can work well, but every intermediate connection, cable quality and peak load counts.
What you calculate or measure
Draw the track including connection points, cable type, any couplings and switch or injector. Note when the malfunction occurs and which functions are then active.
The intervention that fits
Repair poor connections, choose a suitable intermediate solution or adjust the design on the route. Do not add extra equipment blindly without knowing which part is bounded.
Proof that it works
Test image, recording and power supply under the relevant load. Document the process and test result so that later expansion does not rest on assumptions.
Frequently asked questions
Does every network cable have the same usable PoE distance?
No. Quality, preparation and power supply affect the result.
Why does a camera only fail at night?
Extra features may give a different load; research on power supply and trajectory.