ISDN是一种数字通信网络，它提供了一种集成的服务，包括语音、数据和视频。ISDN基本接入接口是连接用户设备和ISDN网络的接口。该接口提供了数字信号传输和控制信号传输，以及其他服务，如呼叫转移、呼叫等待和呼叫保持。

ISO/IEC 8877:1992标准规定了ISDN基本接入接口的物理连接器和引脚分配。该标准定义了两个接口引用点S和T，这些引用点是ISDN基本接入接口的标准化接口。在这些接口引用点上，该标准规定了接口连接器和引脚分配。

该标准规定了ISDN基本接入接口的连接器类型和尺寸。连接器类型包括RJ-45、RJ-48和BNC等。该标准还规定了连接器的引脚分配，包括信号引脚和电源引脚。信号引脚包括发送和接收数据信号的引脚、控制信号的引脚和时钟信号的引脚。电源引脚用于提供电源给用户设备。

该标准还规定了ISDN基本接入接口的连接器和引脚分配的标准化名称和编号。这些名称和编号用于标识连接器和引脚，以便用户设备和ISDN网络之间的正确连接。

ISO/IEC 8877:1992标准的实施有助于确保ISDN基本接入接口的互操作性和兼容性。该标准的实施还有助于简化ISDN基本接入接口的设计和制造，从而降低了成本。

相关标准
- ISO/IEC 11579-1:1995 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call-related supplementary services -- Part 1: Protocol specification
- ISO/IEC 11582:1995 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call-related supplementary services -- Completion of calls to busy subscribers
- ISO/IEC 11583:1995 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call-related supplementary services -- Call transfer supplementary service
- ISO/IEC 11584:1995 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call-related supplementary services -- Call waiting supplementary service
- ISO/IEC 11585:1995 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call-related supplementary services -- Call hold supplementary service