| 摘要 |
The method involves a speed match according to CCIT recommendation V.110 Version 4, September 1992 and communications using 106, 106 and 109 circuits. The slave end data transfer device's 105 circuit is forced to OFF irrespective of the slave terminal 105 circuit's state, the OFF information is transferred in a transmission frame SB bit and the state information output by a master end 109 circuit is inverted before reaching the master terminal. The method involves performing a speed match in accordance with CCIT recommendation V.110 Version 4 of September 1992 and communications using 106, 106 and 109 circuits. Signals from different data transfer devices are combined in the multipoint network using a connection device that performs an AND function. The slave end data transfer device's 105 circuit is forced to OFF irrespective of the slave terminal 105 circuit's state, the OFF state information is transferred in an SB bit of a transmission frame and the state information output by a master end 109 circuit is inverted before being brought to the master terminal. Independent claims are also included for the following: a data transmission device for implementing the method.
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