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    • 11. 发明授权
    • Synchronous digital communications system
    • 同步数字通信系统
    • US06741812B2
    • 2004-05-25
    • US09729780
    • 2000-12-06
    • Michael Joachim Wolf
    • Michael Joachim Wolf
    • H04J1402
    • H04L7/0075H04J14/0227H04J14/0241H04J14/0284H04L7/0008Y10S370/907
    • The synchronous digital communications system according to the invention serves to transmit electric signals optically. The electric signals to be transmitted are converted from electrical to optical form (E/O1, E/O2, E/On) and then transmitted using wavelength division multiplexing (WDM) or dense wavelength division multiplexing (DWDM). A synchronization manager and a connection manager are provided. The synchronization manager is adapted to configure dedicated optical synchronization links. The connection manager is adapted to configure switched optical communication links from a pool of wavelengths, taking account of the dedicated synchronization links only. This has the advantage that independently of the switched communication links, synchronization is constantly ensured throughout the system. Each network element (NE1, NE2, NE3) has at least one interface unit that is reserved for synchronization and that continuously receives signals at the wavelength (&lgr;1) reserved for synchronization.
    • 根据本发明的同步数字通信系统用于光学发射电信号。 要传输的电信号从电转换为光学形式(E / O1,E / O2,E / On),然后使用波分复用(WDM)或密集波分复用(DWDM)传输。 提供同步管理器和连接管理器。 同步管理器适于配置专用光同步链路。 连接管理器适于仅考虑专用同步链路来配置来自波长池的交换光通信链路。 这具有独立于交换通信链路的优点,整个系统中始终保证同步。 每个网元(NE1,NE2,NE3)具有至少一个保留用于同步的接口单元,并且连续地接收为保持同步的波长(λ1)的信号。
    • 12. 发明授权
    • Switching device for an optical transmission network
    • 光传输网络的交换设备
    • US06584243B2
    • 2003-06-24
    • US10021354
    • 2001-12-19
    • Michael Joachim Wolf
    • Michael Joachim Wolf
    • G02B626
    • H04Q11/0005H04Q2011/0016H04Q2011/0024H04Q2011/0052
    • A switching device (10) for an optical transmission network is provided with a first switch (17) to which a plurality of fibers (11, 12, 13, 14) are attached, each of which fibers (11, 12, 13, 14) is provided with a plurality of channels (16) with different wavelengths. The first switch (17) is suitable for connecting each channel (16) of each of the fibers (11, 12, 13, 14) to any other channel (16) of the fibers (11, 12, 13, 14). At least one channel (16′) of the fibers (11, 12, 13, 14) is not attached to the first switch (17), but is instead attached to a second switch (19). The second switch (19) is in this case suitable only for connecting each channel (16′) of a first of the fibers (11, 12, 13, 14) to each channel (16′) of a second of the fibers (11, 12, 13, 14).
    • 一种用于光传输网络的交换设备(10)设置有第一开关(17),多个光纤(11,12,13,14)附接到该第一开关,每个光纤(11,12,13,14) )设置有具有不同波长的多个通道(16)。 第一开关(17)适于将每个光纤(11,12,13,14)的每个通道(16)连接到光纤(11,12,13,14)的任何其它通道(16)。 纤维(11,12,13,14)的至少一个通道(16')未连接到第一开关(17),而是附接到第二开关(19)。 在这种情况下,第二开关(19)仅适用于将第一纤维(11,12,13,14)的每个通道(16')连接到第二纤维(11)的每个通道(16') ,12,13,14)。