Title :
Key technologies for passive double star system
Author :
Makino, Shinya ; Akita, Masashi ; Asashiba, Yoshihiro ; Chikazawa, Takeshi ; Hidani, Fuminobu ; Ito, Katsuyoshi
Author_Institution :
Mitsubishi Electric Corp., Kanagawa, Japan
Abstract :
Several key technologies for a passive double star (PDS) system are presented. Access control using an IC card for the portability of optical network units (ONUs) is proposed. Protection against two security problems is investigated. Two types of digital phase lock loop (DPLL) circuits are designed for timing recovery. The availability of some of the authors´ proposals is experimentally confirmed
Keywords :
optical fibre subscriber loops; DPLL circuits; FTTH; IC card; access control; digital phase lock loop; optical network units; passive double star system; security problems; timing recovery; Information systems; Laboratories; Narrowband; Optical fiber subscriber loops; Optical network units; Privacy; Signal processing; Telephony; Tellurium; Timing;
Conference_Titel :
Optical/Hybrid Access Networks, 1993., 5th Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-1249-X
DOI :
10.1109/OHAN.1993.587757
