MCS or Matrix Cable System is a submarine telecommunications cable linking Indonesia (Jakarta and Batam) and Singapore with a 2nd phase to Landing at Perth, Australia. Constructed by tyco (TE Subcom) 
It has landing points in:Pantai Mutiara, Jakarta, Indonesia
Batu Besar, Batam, Indonesia
Changi, Singapore, Singapore
Matrix cable system Wikipedia
Matrix Cable System is jointly owned and operated by PT NAPInfo Lintas Nusa and Matrix Networks PTE LTD.
Matrix Cable System is initially built with 4 fibre pairs between Singapore and Jakarta, and 4 fibre pairs between Singapore and Batam with a total distance of 1055 km.
Total bandwidth capacity of MCS Cable System is 5.12 Tbit/s, made up of 8 pairs of optical fibres, each pair providing 640 Gbit/s by Dense Wavelength Division Multiplexing of 40 Gbit/s wavelengths. The 1,000 km-long undersea fully buried cable system is built in a self-healing ring configuration. The cable system, will be operational starting mid-2008.
MCS also own and operate onward connectivity from its landing stations and terrestrial network to various major POP in both Singapore and Jakarta. In Singapore, MCS sells capacity via its POP in Global Switch, Geo Tele (Savvis), Equinix and BT Front Line (Chai Chee). In Jakarta, MCS connects to Cyber Building and NAPInfo's own Data Center in Kuningan Plaza.
Matrix Cable system start commercial services on 08-08-08.