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    • 7. 发明授权
    • Snap-on network interface unit
    • Snap-on网络接口单元
    • US4764950A
    • 1988-08-16
    • US119217
    • 1987-11-04
    • Larry W. DickeyPhilip Hughes
    • Larry W. DickeyPhilip Hughes
    • H04M1/24H04M3/30H04Q1/02
    • H04Q1/028H04M1/24H04M3/301H04Q1/021H04Q1/142H04Q1/20
    • Apparatus inserted in series in a transmission line connecting subscriber equipment with a telephone central office and which apparatus is responsive to test signals from the central office to determine whether a fault is located on the office side or the subscriber side of the apparatus is enclosed in a housing. A plurality of leads from the apparatus project through an opening in the housing and the leads are connected to electrical terminals of a connector block. The housing in one embodiment has two spaced apart ribs which are lodged between tabs of fanning strips, located on both sides of the terminals. One of the ribs has an end with a width larger than the rest of the rib so that end projects inward from the fanning strip and prevents accidental dislodging of the housing from the connector block. In a second embodiment, the housing is supported by at least one tab from one fanning strip. Testing of the terminals is effected by removing the housing without disturbing the connection of the leads to the terminals.
    • 串联插入连接用户设备与电话中心局的传输线的装置,以及哪个装置响应于来自中心局的测试信号来确定故障是位于设备的办公室侧还是用户侧被封装在 住房。 来自该装置的多根引线通过壳体中的开口突出,并且引线连接到连接器块的电端子。 在一个实施例中的壳体具有两个间隔开的肋,其被放置在位于端子两侧的扇形条的突片之间。 其中一个肋的宽度大于肋的其余部分的宽度,使得端部从扇形板向内突出并防止壳体从连接器块意外移动。 在第二实施例中,壳体由来自一个扇形条的至少一个突片支撑。 端子的测试通过移除壳体而不影响引线与端子的连接来实现。