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    • 2. 发明授权
    • Line terminating device
    • 线路终端设备
    • US6058235A
    • 2000-05-02
    • US190020
    • 1998-11-12
    • Shinji HiramatsuNatsuo MasudaMasahiro HagaToshihiko MotosekoHiroyuki AbeMasatomo Ohta
    • Shinji HiramatsuNatsuo MasudaMasahiro HagaToshihiko MotosekoHiroyuki AbeMasatomo Ohta
    • G02B6/00G02B6/38G02B6/44H04L29/00
    • G02B6/4453G02B6/3897G02B6/4457
    • A line terminating device including a housing having first and second openings and a main printed wiring board vertically mounted in a front end portion of the housing. A first optical module for performing conversion between an optical signal and an electrical signal, a WDM module, and electronic components are mounted on the main printed wiring board. The line terminating device further includes an extension electronic circuit package inserted from the first opening into the housing and a power supply package inserted from the second opening into the housing. A second optical module for performing conversion between an optical signal and an electrical signal is mounted on the extension electronic circuit package. An extra optical cable length winding drum is mounted on an upper surface of the housing. An extra length of a subscriber optical cable is wound around the drum, and an extra length of a terminal optical cable connected to a terminal device is also wound around the drum.
    • 一种线路终端装置,包括具有第一和第二开口的壳体和垂直安装在壳体的前端部分中的主印刷线路板。 用于在光学信号和电信号之间进行转换的第一光学模块,WDM模块和电子部件安装在主印刷线路板上。 线路终端装置还包括从第一开口插入到壳体中的扩展电子电路封装以及从第二开口插入外壳的电源封装。 用于在光信号和电信号之间进行转换的第二光模块安装在扩展电子电路封装上。 一个额外的光缆长度的卷筒安装在壳体的上表面上。 用户光缆的额外长度缠绕在滚筒周围,并且连接到终端设备的额外长度的终端光缆也缠绕在滚筒周围。