[time-nuts] HP 58503A Com 4 conflict
rexa at sonic.net
Mon Jan 5 00:40:10 EST 2015
You left out a lot of details, like what OS your PC is running, Assuming
it is Windows XP or greater, you may be able to juggle the assigned com
If you are using a USB/serial adapter, be sure it is plugged in so it
shows on the devices list.
You need to open Device Manager. One way is Start/settings/Control
Panel. If it is Win 7+ Device Manager should be in the list. If XP,
select System, the Hardware tab at the top, then the Device Manager
button. -- I don't have a Win 8 machine; I assume it is the same as Win 7.
Find your serial device under 'Ports (Com & LPT)'. If you are not sure
which one and it is a USB adapter, you can unplug it and see which one
Double-click on the one you want to change. In the window that opens,
select the Port Settings tab at the top. You'll get a window with the
baud rate, etc. Select the Advanced button. Then in the lower left of
the window is the assigned Com Port. Click the pull-down triangle button
and you'll get a list where you can select a different Com Port number.
If all the ones you want are flagged with (In use), you may have to back
out and try to find a listing for the device that is using a low Com
port and select it to change its number higher to free the one you want
to use. I'm not sure what happens if you try to change to a port that is
(In use). Maybe it tries to work it out for you. I haven't tried it.
I'd suggest Com 4 or Com 2 as your best choices.
So I don't have an exact answer. It depends on what is using the lower
numbers now, Hopefully you can rearrange them using this method to find
something that works.
On 1/4/2015 7:50 AM, James Robbins wrote:
> My new old HP58503A wants to connect to my PC on Com 1-4. Other PC devices are already using those 4 Com ports.
> Is there any way to connect it to a Com port other than one of those 1 to 4?
> I currently use an Edgeport USB-to-Serial Converter which works very well to communicate with the PC and to assign Com ports to my various GPS units. But, as far as I know, the chosen Edgeport Com port must fall within the range of Com ports which for which the device is designed.
> If this has been answered, please point me to the discussion. Many thanks. And, Happy New Year to all, with wishes for a more peaceful (and timely - couldn't resist) year.
> Jim Robbins
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