1
Shuuichi Nakagawa: Subscriber system testing method. Fujitsu, November 28, 1995: US05471517 (12 worldwide citation)

In a subscriber line transmission system, subscriber circuits of a remote terminal servicing a plurality of subscribers and subscriber circuits of a central office terminal connected to a switching system are connected by multiplexed transmission lines. In this case, an arrangement is provided so th ...


2
Nakagawa Shuuichi C O Fujitsu: Subscriber system testing method.. Fujitsu, March 15, 1995: EP0643519-A1 (5 worldwide citation)

In a subscriber line transmission system, subscriber circuits 3 of a remote terminal 1 servicing a plurality of subscribers and subscriber circuits 4 of a central office terminal 2 connected to a switching system are connected by multiplexed transmission lines. In this case, an arrangement is provid ...