Add-drop multiplexing apparatus

Details Add-drop multiplexing apparatus Add-drop multiplexing apparatus

1997-03-04

2000-09-19

Hsu, Alpus H.

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

370224, 370258, 370535, 340826, 714717, H04L 122, H04J 314

Patent

active

061222496

ABSTRACT:
An add drop multiplexing (ADM) apparatus has a simple and compact structure. The ADM apparatus has high-order interfaces connected to a high-order network, path setting units each for setting a path for a signal according to path data and inserting or dropping the signal to or from the high-order network, a first path protection switch for selecting one of the signals dropped by the path setting units, low-order interfaces each for receiving the selected signal and transmitting the same to a low-order network, and a second path protection switch for receiving low-order signals from the low-order interfaces and transferring one of them to the path setting units so that the path setting units may insert the signal into the high-order network.

REFERENCES:
patent: 5179548 (1993-01-01), Sandesara
patent: 5311501 (1994-05-01), Takatsu
patent: 5343464 (1994-08-01), Iino et al.
patent: 5412652 (1995-05-01), Lu
patent: 5442623 (1995-08-01), Wu
patent: 5572513 (1996-11-01), Yamamoto et al.
patent: 5757768 (1998-05-01), Goto et al.
patent: 5757774 (1998-05-01), Oka
patent: 5790520 (1998-08-01), Iwamoto et al.

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