| 摘要 |
<p>PURPOSE:To disconnect a power source once without visiting a remote place where a remote information processor is installed and to apply the power source again even when a fault including software occurs in the processor and it is impossible to disconnect the power source. CONSTITUTION:A power source control instruction circuit 12 outputs a system power source application instruction signal 107 by detecting an incoming call signal or a carrier detection signal in communication, and simultaneously, an instruction output memory circuit 13 stores the application of a system power source, and instructs the start of monitoring of a response to a response transmission monitoring circuit 14. The response transmission monitoring circuit 14 monitors whether or not transmission data of response is transmitted within constant time from the remote information processor after receiving reception data from a HOST via an RD signal detection circuit 15 and an SD signal detection circuit 16, and requests to disconnect the system power source to the power source control instruction circuit 12 when no transmission data is transmitted within the constant time.</p> |
