| 摘要 |
<p>PURPOSE:To let the terminal control unit and CPU know the intentional cut-off of the power supply by the terminal unit by cutting off the power supply within the terminal unit after informing so to the terminal control unit. CONSTITUTION:Terminal units 3a-3n are controlled by terminal control unit 2 with individual power source 12 provided. In case units 3a-3n cut off the intra-unit power source 12, they inform so to unit 2 before cutting off the power supply. Thus, unit 2 and CPU identify other faults and can know that units 3a-3n cut off the power supply intentionally.</p> |
