The RJCN (or Russia-Japan Cable Network) is a 1800-km submarine cable system with diverse cable routes connecting Japan and Russia, with a design capacity of 640 Gbps. The RJCN was ready for service on September 5 2008. By interconnecting with the Transit Europe Asia (TEA) terrestrial cable, the RJCN and the TEA can offer the shortest latency (approximately 196 ms) between Tokyo and London. And 10 Gbps transparent wavelength is available on the RJCN and TEA route.