Fiber ranger

Optical point measurement for camera surveillance system

The camera system relies entirely on the optical fiber transmission line to transmit video data. When an optical fiber is damaged or experiences high attenuation, the camera signal can be lost or become unstable. Measuring the optical fiber break point is an effective way to pinpoint the exact location of the fault, allowing for rapid troubleshooting and ensuring the stable operation of the surveillance system.

1. Why Surveillance Cameras Fail Due to Fiber Lines More Often Than You Think

IP cameras are entirely dependent on the transmission line signal. Even a minor issue, such as a fiber bent sharply in the cable tray or dust contaminating a connector, can noticeably weaken the signal. In many construction projects, the fiber optic route is quite complex, passing through numerous trays, cabinets, and ladders, making it highly susceptible to collision or compression. In some areas, excessively tight pulling during installation can damage the fiber core. While the immediate effect might be minimal, after a few months, attenuation often increases sharply by up to 80%. Such faults are invisible to the naked eye and can only be precisely diagnosed by measuring the optical fiber break point.

2. Locating the Break Point with the FIBERLERT-125 Meter

When the system encounters a problem, technicians can use the Fluke Network FIBERLERT-125 to inject an optical signal into the fiber. This device detects optical power across a wide wavelength range. When the signal is suddenly lost or drastically reduced, the distance from the device to the fault point is clearly determined. This process quickly narrows down the potential location of damage, significantly reducing the time required to resolve issues in geographically dispersed camera systems.

Full equipment reference: Fluke Network Optical Fiber Break Point Meter

3. Inspecting and Verifying Connectors with the FiberInspector

Many camera lines lose video not due to a cable break, but because of issues at the connector. When a connector is dirty, scratched, or not securely fastened, the attenuation level at that point increases, and the returned signal clearly reflects this anomaly. Locations situated in dusty environments or equipment cabinets that are frequently accessed are prone to this issue. For accurate inspection, technicians can use the FiberInspector Pro V2 FI2 7000 distributed by EMIN. The integrated camera allows direct observation of the connector end-face to determine whether cleaning or replacement is necessary. The device is compatible with various connector types, such as LC, FC, and SC, and wirelessly transmits the inspection image to the management device, making the connector status assessment quick and accurate.

4. Proactive and Routine Optical Transmission Line Inspection

Periodically inspecting the fiber optic line helps detect potential attenuation before it causes camera signal loss. Technicians can use the FIBERLERT-125 to regularly measure the optical power level at key connection points. If a noticeable delay or signal degradation is detected, the FiberInspector can be used to check the connector surface condition. Fluctuation in the optical signal over time is a clear indication that the system requires maintenance or cleaning. This proactive approach helps maintain the stability of the surveillance camera system, which is especially crucial in continuous monitoring applications such as factories, data centers, or office buildings.