| 摘要 |
<p>PURPOSE:To eliminate the necessity of preparing a circuit for generating a vacant cell to be supplied from a network terminal to an incoming bus regarding an incoming/outgoing integrated bus constituting method for a communication apparatus using a DQDB protocol as an access integrated control system in which a plurality of slave units are connected to a master unit through incoming/outgoing bus. CONSTITUTION:A master unit 2 is connected successively to a plurality of slave units 3, and the tail of outgoing bus 4 is folded and connected to the top of incoming bus 5. Further, the top of the incoming bus 5 is connected to a slave unit at the upmost stream of incoming bus, and via successive connection with a plurality of slave units the tail of the incoming bus 5 is connected to master unit 2, thereby using a cell used in outgoing bus as a vacant cell for use in incoming bus.</p> |
