| 摘要 |
PURPOSE:To improve the traffic of a channel by providing a phase correction time switch and a space switch to which feedback input/output are added. CONSTITUTION:The phase correction of a time slot by m-number of parallel phase correction time switch(LTSW) circuits 81-89 and an action for exchanging a highway(HW) by a space switch(SSW) circuit 41 having the feedback input output improve the number of overflow calls in an input-side link in secondary time switch(STSW) circuits 71-79, and the traffic of the whole channel is improved. Even if the time switches of primary time switch(PRSW) circuits 11-19 and the STSW circuits 71-79 are constituted by the switches of low multiplicity, a problem that the overflow calls in the input-side link in STSW 71-79 is improved and the traffic of the whole channel is improved by constituting the LTSW circuits 81-89 and the SSW circuit 41 to which the feedback input and output are added. |
