| 摘要 |
PURPOSE:To enable high-speed communication by using two B channels in the basic interface of ISDN together. CONSTITUTION:By using the D channel of the basic interface of the ISDN, a reception repeater 12 is reported that training signals are to be transmitted. Thereafter, the training signals are sent out from a transmission repeater 10 simultaneously to the two B channels. The reception repeater 12 detects the difference of the arrival timings of the training signals and sets delay time so as to compensate the difference to two variable delay circuits 16a and 16b provided corresponding to the two B channels. Thus, the propagation delay time of the two B channels can be made equal to the eye and the high-speed data communication using the two B channels is enabled. |
