| 摘要 |
PURPOSE:To connect plural B channels to an optional terminal interface. CONSTITUTION:Among data fetched from an ISDN channel to a first-order group interface 6, D channel data are distributed to a controller 10 and B channel data are distributed to a slot segmenting/assembling part 9 respectively. A switching part 12 connects the optional time slot of a B channel string to the B channels of the terminal interfaces (ISDN basic interfaces) 11-1 11-n. The switching part 12 is switched based on the D channel data detected by the controller 10 and can simultaneously perform the communication of the plural data. Since the switching part 12 can also switch the plural time slots simultaneously, a transmission request to the terminal housed in an HO interface and the transmission request from the terminal can be responded. |
