Configure PL2303-based USB-to-RS232 adapter to stay awake when no active device is present

Posted by casualuser on Super User See other posts from Super User or by casualuser
Published on 2014-05-11T16:44:25Z Indexed on 2014/06/08 15:31 UTC
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I am resurrecting some X10 devices with the aid of a USB-to-RS232 adapter. The problem is, that the adapter only works with the Firecracker device when there is another serial device on the line (the Firecracker is a pass-through device that monitors the RTS and DTR lines to do its magic). Is the PL2303 going to sleep without a real device on the line? Is there an option or command to keep it awake? Is there a cable configuration that would make it work without a real serial device present?

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