... 触发信号钟 triggered time clock; triggered-time clock 带外发信 out of band signaling; out-of-band signaling; out-of-band signalling 单工发信simplex signaling ...
abstract:Simplex signaling (SX) is signaling in which two conductors are used for a single channel, and a center-tapped coil, or its equivalent, is used to split the signaling current equally between the two conductors. The return path for the current is through ground.