Cross-connect System with Packet Transport Technology
Masaya Ogawa, Hidenori Iwashita, Takashi Takashima, Toshiya Matsuda, Kenichi Higuchi, Katsutoshi Koda · NTT technical review · 2015
The public switched telephone network (PSTN) and existing dedicated line services have been carried over transmission lines using older data link systems based on time-division multiplexing technology.However, as Internet protocol traffic has increased and traffic to the PSTN and existing dedicated services has decreased, there has been a move to use data link systems based on packet transport technology; this in turn has allowed simpler networks to be built.We have developed a packet-based cross-connect system that can efficiently promote this transition by allowing individual low-speed (.5 Mbit/s) paths to be split up and reassembled.