COM Port Issue

Posted on 2005-03-09
Medium Priority
Last Modified: 2010-04-26
I have a device called a DataSafe2 which provides an interface to allow storing data from a radio control computer transmitter in a file on a PC.  The device has a serial port, and I plug it into an adapter that plugs into a UBC port.  The adapter is supposed to be on COM 4.  The system has worked in the past.

Currently, the computer cannot find the interface device.  When I look at the COM Ports in Device Manager, only COM1 and LPT1 show up as having anything on them.  

In addition to the DataSafe2 I have a WACOM (not currently plugged in) sketch pad, and a Palm cradle connected via USB.  

How do I get my computer to see the COM4 port so I can use the interface?

Question by:wllmd
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 31

Accepted Solution

rid earned 500 total points
ID: 13508324
I can't say I know what an UBC port is, but if it isn't a proper serial port, the COM 4 is very probably a virtual COM port, in which case this is very likely a software (driver) issue. Did the adapter come with some kind of installer software?
LVL 13

Expert Comment

ID: 13518091
the com port on the computer is probably disabled in the bios.  Enable it.  If it has to be on COM 4 (i am not sure why that would be) then add the port using the add remove hardware option in control panel (may need to add com3 as well)
LVL 88

Expert Comment

ID: 14717886

No comment has been added to this question in more than 21 days, so it is now classified as abandoned..
I will leave the following recommendation for this question in the Cleanup topic area:
Accept: rid

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

EE Cleanup Volunteer

Featured Post


Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Windows 7 does not have the best desktop search built in. This is something Windows 7 users have struggled with. You type something in, and your search results don’t always match what you are looking for, or it doesn’t actually work at all. There ar…
There are many software programs on offer that will claim to magically speed up your computer. The best advice I can give you is to avoid them like the plague, because they will often cause far more problems than they solve. Try some of these "do it…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question