| 摘要 |
<p>PURPOSE:To simplify power application check and to decrease the check time by providing the power application check circuit detecting a broken bus cable to the system. CONSTITUTION:The circuit consists of a data output section 1 and a data input section 2 interconnected by a bus cable 3. A voltage application circuit 11 applies a DC voltage to the data output section 1, a 2nd interrupt circuit 21 of the data input section detects the applied DC voltage and applies the DC voltage to the data output section 1 from a 2nd voltage application circuit 22 as its reply. The power application check of the bus cable is implemented by detecting the applied voltage at a detection circuit 13 of the data output section 1.</p> |
