| 摘要 |
The PLC 20 adaptor corresponding to a power line communication apparatus has four PLC bridges 30 A to 30 D, each of which is correspondingly connected to Ethernet communication connectors 26 A to 26 D, operation mode setting switches 27 A to 27 D, display units 28 A to 28 D. Each PLC bridge 30 A to 30 D includes a PLC modem unit 301 , a bridge unit 302 , an Ethernet IF unit 303 , and a communication control unit 304 . The communication control unit 304 obtains data type information on the basis of setting conditions of switches 27 A to 27 D corresponding to each communication port. Since the time slot required for the communication link corresponding to the communication port of the PLC network can be obtained on the basis of the data type information, the reservation request can be transmitted to the control terminal.
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