| 摘要 |
PURPOSE:To simplify a device by omitting the multiplexing to 64 kilobits per second, and executing directly the multiplexing to 1.544 megabits per second from a low bit rate. CONSTITUTION:Plural input data are multiplexed directly by a single multiplexing device 1. As for a bit constitution, one frame is constitute of a synchronizing bit of 1 bit and a data bit of 192 bits, and also a synchronizing bit 2 is formed by using 1 bit in 192 bits. 1 bit in one multi-frame is 1 bit per 2.5msec, therefore, information of 400BPS can be transmitted. Accordingly, when executing a transmission of 400xnBPS, a data extending from a low sped to a high speed can be multiplexed directly by assigning (n) bits in one multi-frame. |
