FAQ RaySense Fiber Optic Sensor Cable

Frequently Asked Questions About the RaySense Fiber Optic Sensor Cable

Demonstration Video of the RaySense system and its Capabilities

What parts does a fiber optic system includes?

The RaySense fiber optic security system usually includes sensor cable in the length of choice, End line unit and laser unit/Server (APU). Other accessories are optional and needed to be added separately.

How long of a fence or ground can the RaySense system monitor?

The Maximum length is 100km/62mile but the RaySense family of products are sold in 5km/3.1Miles, 10km/6.2mi, 20/12.4mi, 40km/24.8mi, 50/31mi and 100km/62mi.
In order to cover larger perimeter multiple systems (APUs) can be combined to cover the whole perimeter line.

If the sensor cable gets cut or broken what happens?

If the fiber optic cable gets cut an alarm will trigger, with the RaySense DAS the system would detect up to the cut location as well. If installed in a 2 channel redundant cut resistant configuration no loss of signal or detection will happen with a single cut.

How accurte is the RaySense detection?

Detection performance and detection accuracy are ±3 m (10 ft) on standard chain link fences while typical Detection resolution is: 20 m (65 ft) minimum separation for two disturbances to be reported separately since vibrations on a fence can travel sideways and affect a larger area of the cable.

Can the sensitivity of the sensor be adjusted?

Sure! The RaySense has the ability to have 1000+ software assignable and adjustable zones. Each zone can have its own sensitivity and detection characters.

Does the system need any calibration before I can use it?

Yes, the RaySense is a highly sophisticated system that I able to detect and analyzer very long cables. In order to adjust the system performance to each site there is a calibration process that a certified technician would have to perform.

Does wind or rain can cause false alarms?

The way the RaySense system works: Distributed Acoustic Sensing (DAS) sensors “listen” to the cable acoustics and are able to determine by comparing the signal to a large database of signatures as of what the acoustic signature looks like such as cut, climb, digging, vehicle and more.

Vibrations caused by wind, rain and small animals are usually not be picked up by the system as they don’t match the database of acoustic signatures we would like to detect.

Does the weather compensation unit lower the sensitivity to avoid false alarms?

No, the weather station adds another variable into the algorithm of detection that helps the system ignore wind noise better. It does NOT lower the sensitivity to avoid false alarms.

Can the RaySense work on any fiber optic cable?

The RaySense works by my monitoring a standard single more fiber. In theory we can monitor any fiber optic cable but for security applications it is strongly recommended to use the RBtec special cable that is designed for security, outdoor or direct burial applications and designed to be utilized for those purposes. If in other cases the customer already have a fiber optic cable and we have no other option we can still use it.

If the cable got cut can it repaired?

Yes! Like any fiber optic cable the RaySense cable can be repaired by a fusion splicing.

Have any other questions? please contact us at Info@rbtec.com