APNG-2 replaces the APNG-1 cable, a coaxial copper cable of 16 Mbit/s, retired in early 2006.
Recovery and relaying
An 1,800 km section of the PacRimWest cable will be recovered from just south of Guam, with the ship sailing towards the Solomon Islands.
The ship will then recover a loop of the PacRimWest cable off Rockhampton, Queensland, break it, splice to the Sydney end the recovered 1,800 km section, and sail towards PNG, making landfall at Ela Beach near Port Moresby, where a terminal station from Guam will be re-established to link to the Telikom PNG network.
PacRimWest is a fibreoptic cable with two fibre pairs. These will be used to provide APNG-2 with around 1100 Mbit/s data capability, consisting of 2 x 565 Mbit/s PDH systems with all electronic regeneration.
The reuse of the cable is expected to save about 80% of the cost of a new cable: USD$11 million v $60 m.
A 300 km segment of the PacRimWest cable was recovered and tested from a section south of the intended recovery route. It was found to be sound and suitable for reuse.