Jamaica Submarine Cable Festoon System (JSCFS)

Jamaica Submarine Cable Festoon System (JSCFS) is a submarine fiber-optic cable system across 4 landing points. The cable provides high-capacity connectivity for internet traffic, voice, and enterprise data between continents.

Modern submarine cables use Dense Wavelength Division Multiplexing (DWDM) technology to transmit multiple simultaneous light channels, dramatically increasing capacity without adding physical cables.

The cable is operated by a consortium of telecommunications companies. This joint ownership model distributes the substantial capital costs of construction and maintenance across multiple participants, with each operator receiving guaranteed capacity and indefeasible right of use (IRU) on the cable.

Jamaica Submarine Cable Festoon System (JSCFS) serves as a short but vital link in the submarine cable network that underpins 95% of international data traffic. GeoCables tracks this cable with RIPE Atlas measurements from probes in Minsk, Almaty, Tbilisi, and Jerusalem — detecting anomalies by comparing live RTT against historical baselines.