| 摘要 |
PROBLEM TO BE SOLVED: To provide a peripheral device which can surely turn on and off the terminal resistance and also can set an ID number in a short time. SOLUTION: This peripheral device is connected to a computer via a bus and provided with a push button switch which inputs commands, a terminating resistance and a control part which connects the terminating resistance to the bus or opens the resistance in response to the command that is inputted from the push button switch.
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