Side-tone otdr for in-service optical cable monitoring

H - Electricity – 04 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04B 10/08 (2006.01)

Patent

CA 2267888

An OTDR provides both in-service and out-of-service measurement information for an optical transmission system with multiple repeaters (34, 44). The repeaters include an optical high-loss loop back (hllb) path and an OTDR path. The OTDR (30) is coupled to the input lines of the optical transmission system via an optical coupler so that both traffic signals and test signals from the OTDR (30) can be transmitted simultaneously. When the OTDR (30) is provided in- service measurement information, test signals in the form of side-tone pulses are transmitted on the transmission system. The OTDR (30) filters out the traffic signal from the return signal. The HLLB path (40) through the amplifier pairs of each repeater is distinguishable in the filtered return signal. When the OTDR (30) is providing out-of-service measurement information, the level of the side-tone pulses is increased because interference with the traffic signal is no longer a concern.

L'invention concerne un réflectomètre optique dans le domaine temporel (OTDR) fournissant à la fois des informations de mesures en service et hors service pour un système de transmission optique à répéteurs (34, 44) multiples. Ces répéteurs comprennent un chemin optique de bouclage à fortes pertes (HLLB) et un chemin OTDR. L'OTDR (30) est couplé aux lignes d'entrée du système de transmission optique via un coupleur optique de sorte que les signaux de trafic et les signaux de test provenant de l'OTDR (30) peuvent être transmis simultanément. Lorsque l'OTDR (30) fournit des informations de mesure en service, des signaux de test sous forme d'impulsions à effet local sont transmis sur le système de transmission. L'ODTR (30) filtre le signal de trafic du signal de retour. Le chemin (40) HLLB passant par les deux amplificateurs de chaque répéteur est reconnaissable dans le signal de retour. Lorsque l'OTDR (30) fournit des informations de mesure hors service, le niveau des impulsions à effet local est augmenté, car une interférence avec des signaux de trafic ne constitue dès lors plus un problème.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Side-tone otdr for in-service optical cable monitoring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Side-tone otdr for in-service optical cable monitoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Side-tone otdr for in-service optical cable monitoring will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1968927

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.