問題：
Is there a way to keep the Digital-to-Analog (D/A) output signal on the KUSB-3102, KUSB-3108, or KUSB-3116 from floating when the module has no power applied to it from the host system?
答案：
Product(s):
USB Modules: KUSB-3100 Series: KUSB-3102, KUSB-3108, KUSB-3116
Question:Is there a way to keep the Digital-to-Analog (D/A) output signal on the KUSB-3102, KUSB-3108, or KUSB-3116 from floating when the module has no power to it from the host system?
Answer:You will need to have a DPDT Relay AROMAT TF2-5V connected to an available USB port on the same system.Also, when the host system has no power, both switches (one for the channel 0 line and the other for the channel 0 return) will be pulled to ground.
Copyright 2003, Keithley Instruments, Inc.
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常見問答集 ID 71571
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