| 摘要 |
PURPOSE: The jig for basic subscriber interface board tests in an exchange is provided to improve the productivity of basic subscriber interface boards by integrating a processor circuit pack, wherein a program to an old ISDN(Integrated Service Digital Network) basic subscriber interface module is installed, a basic subscriber interface unit testing jig circuit pack and an ISDN modem function into a basic subscriber interface module testing jig processor circuit pack. CONSTITUTION: An ISDN basic subscriber interface module testing processor jig circuit pack(510) containing a testing program to test a plurality of circuit packs processes a protocol to carry out intercommunication with an ISDN basic subscriber interface circuit pack(600) and ISDN or analog telephones. The ISDN basic subscriber interface circuit pack(600), receiving a control command from the ISDN basic subscriber interface module testing processor jig circuit pack(510), executes interfacing with ISDN subscribers. An ISDN D-channel processor circuit pack(700), receiving a control command from the ISDN basic subscriber interface module testing processor jig circuit pack(510), processes a layer-2 protocol and transmits the control command to the ISDN basic subscriber interface circuit pack(600).
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