"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in message
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"Peter Bennett" wrote in message
news.com...
On my computer, the USB/serial adaptor will appear as a different COM
port, depending on which of the three USB ports it is plugged into.

That is strange. Mine comes up the same no matter which of the 4 USB
ports I connect it to.

That depends on the implementation the manufacturer chose. If the device has
a unique serial number, it will appear with the same com port on any USB
port. If not (cheaper, no ROM chip needed) it will indeed change com port
number if you change USP port.

Meindert