| 摘要 |
<p>PURPOSE: To autonomously adjust delay time correction accompanying the communication from a master station to a slave station or a repeater station to the slave station of a system. CONSTITUTION: The master station 1 detects a delay adjustment code sent from the slave station 8 in a code detection part 5, passes the detection value through a latch part 6, reads it in a processor 4, calculates delay correction data, sends the delay correction data to an HDLC data link control part 3 for preparing them as the data of HDLC frames and transmits them through a data addition part 2 to the slave station 8. The slave station 8 detects the delay correction data from the master station 1 in the HDLC data link control part 11, analyzes the value in the processor 12 and sets a delay correction value in a transmission frame counter 10. Thus, a transmission timing outputted by the transmission frame counter 10 becomes the one corrected to the timing shifted from the timing of reception frames for a portion corrected by the delay correction value.</p> |
