【摘要】 本文讨论了ISDN用户网络接口总线方式的原理及实现结构.着重讨论了总线方式中 D 信令信道的争抢的实现,并且给出了一种实现扩展短无源总线的自动调节方法,这种方案提高了总线配置的灵活性.更多还原

【Abstract】 This paper discusses intensively the design philosophy and the hardware imp- lementation for ISDN user-network interface.Specially,the D-channel contention resolution is taken into account with a feasible scheme of auto-pha-sealigned ex- pandable passive bus,the scheme improves the configuration flexibility of passive bus.更多还原