The Coral Sea Cable System (CS²) is a 4,700 km submarine fiber optic cable linking Sydney, Australia, to Port Moresby, PNG, and Honiara, Solomon Islands . It uses single-mode fiber with Dense Wavelength Division Multiplexing (DWDM) in the 1550nm window, supporting up to 40 Tbps of capacity . The system employs 100G repeaters and ASN's 1620 SOFTNODE Submarine Line Terminal Equipment, providing configurable client interfaces and robust protection against cable faults . CS² ensures faster, more reliable, and cost-effective international connectivity, replacing PNG's aging undersea cable to Sydney .
PNG DataCo operates over 12,000 km of fiber optic cable across the country, connecting 44 out of 96 districts via fiber and achieving a 70% district connectivity rate . The network integrates with three data centers and 51 satellite infrastructures, providing low-latency, high-availability services. Single-mode fiber is used extensively for long-distance, high-speed gigabit connections, supporting both wholesale telecommunications and digital services . DataCo also maintains international Points of Presence (PoPs) in Sydney, Guam, Hong Kong, and Jayapura, sourcing upstream IP transit and peering services .
In Port Moresby, suppliers like Cetelnet provide single-mode and multi-mode fiber optic cables suitable for indoor, outdoor, aerial, and underground installations . They offer pre-terminated patch cords, pigtails, splice enclosures, distribution boxes, and installation tools to support professional deployment. Their technical team assists in selecting compatible fiber products for gigabit-speed networks, ensuring signal integrity and durability in PNG's diverse environments .
The deployment of single-mode gigabit fiber in PNG enables:
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PNG DataCo''s current and planned cable network. Credit: PNG DataCo A total of 12,000 km of fibre-optic cables has
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