| 摘要 |
A personal computer failsafe protection device for disconnecting a computer system from a communications channel during power down periods. The personal computer failsafe protection device includes a voltage sensor (48) for sensing a voltage drawn by the computer system, input ports (18, 20, 22) for connecting to a communications channel, output ports (38, 40, 42) for connecting the communication channels to the computer systems and relays (50, 52, 54) connected between input ports and output ports. The relays selective disconnects the imput port and the output port when the sensor senses the voltage drawn is below a threshold value thereby indicating the computer system is in a powered down or sleep state. |
