| 摘要 |
<p>PURPOSE:To reduce call connection time and to scatter communication amount by giving a different N-bit terminal address to plural terminal devices and informing a multiple address communication address individually to plural incoming terminal devices ahead the start of multiple address communication of each sender terminal device in multiple address communication. CONSTITUTION:A reception packet from a reception control section 24 is received via a reception bus 30-1 in a terminal device 30 and a transmission packet is given to a transmission control section 25 via a transmission bus 30-2. At non-transmission of a station, a packet flowing to a transmission line 9 is inputted to a reception packet identification section 23 and an access control section 22. When a reception control section 24 detects the active state of a reception command output 23-1 of the reception packet identification section 23, the packet is received. On the other hand, when a transmission request output 25-1 is active, the access control section 22 starts the acquisition control of the transmission right and acquires the transmission right and then the switch of a switch section 21 is connected to the transmission control section 25 and transmitted.</p> |
