| 摘要 |
In writing of a communication data from a data transfer apparatus into a wireless selective call receiver, an appropriate transmission rate is first determined through communicating between a wireless selective call receiver and a data transfer apparatus via an optical transmission path while changing a transmission rate. When the appropriate transmission rate is determined, a communication data is automatically transmitted with the determined appropriate transmission rate from the data transfer apparatus to the selective call receiver via the optical transmission path such that the communication data is written in the receiver. When the write operation of the communication data is completed, the verifying operation is automatically performed to determine whether the communication data is accurately written in the receiver./!
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