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Usb Serial Port Adapter

Q: Usb Serial Port Adapter

i have a usb serial port adapter and i trying to figure out to set the usb jack on the desk top to be port1, port2, port3, or port4. if this is an easier process with xp i can change to the laptop

Preferred Solution: Usb Serial Port Adapter

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A: Usb Serial Port Adapter

hi,,, im not quite with you on this,,,, do you mean when you click on the "safely remove hardware" button on the notifacation area near the clock,,, where it says "safely remove mass storage device, D:E:F:G:" etc???

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I have 2 different adapters and neither one will work on my new computer with windows 8. Any fixes? Are there any adapters available that will work on windows 8?

A:USB to serial port adapter not working on Windows 8

Welcome to Tech Support Guy

What is the serial device you are trying to connect
What is the make of the USB to serial adapter

The problem is that the processor chip - YES they do have one, is not in many cases compatible with Windows 8, especially 64 bit, as of course the actual working of the adapter is achieved by connection to the USB port and then transmission of data from and to the USB hub.

Not knowing what you actually wish to connect your best first port of call is here to see what is on offer

scroll down for USB to serial or click USB on menu at top

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My PC doesnt have a parallel port. My printer is not USB-capable. So, I connected an adapter (9-pin plug in one end/25-pin plug other end) to the 9-pin serial port of the PC and plugged the printer cable in the adapter. On connecting, the PC communicated w/the printer because a paper came out with a single black square on top. But I could not get it to print again. I tried printing directly from CMD prompt to LPT1; then tried COM1 and COM2 - No luck. Any suggestions? The printer is a discontinued HP Laserjet 4000 - it may have a serial port, in which case I may go from serial to serial but, is that okay? Thanks for your help.

A:Serial Port Adapter for Parallel Printer Cable

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Need some advice a quick as possible.

Windows XP Pro
ofc had a built in serial port go bad, it was hooked to a charicter generator (don't no how to spell charicter) for a tv channel.
Installed a Controller Card with two serail ports PCI Multi I/O Controller Card, it didn't show up in the device manager was having problems getting the driver to work. says to load driver first then put in the pci card. Anyway it wouldn't work. The port that was built in (that went bad was on com 1) When the new card didn't work I used a usb with a serial adaptor and it went in fine and showed up in the divice manager and it said it was working and it started out on com 3, I no each time you plug the adaptor into a different usb port it goes to a different com port. That isn't a problem cause it would stay in the same port. Anyway device manager said it was working we changed the charicter generator to com 3 but it wouldn't work. We no the cables are good. I then got a PCI Card with one serial port instead of two and installed it and it show right up in the device manager and said it was working and I for get what comport it was on but changed it to com 1. that port didn't work either. Finally brought in another windows xp computer and hooked everhthing to it and it works. The xp computer I brought in had no serial port so used the same usb to serial adaptor that we had used and it work the first time. Show up in the device manager just like on the first comp... Read more

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I have an amateur radio program installed on my desktop Dell PC runnning Windows 7. The program is correctly installed but when I try to communicate using the Internet I hear no sound from my speakers. I am connected to the other station but still no sound.
I get a message saying "cannot open serial port COM1. I would like to know how to convert a USB port to a Serial port. Please advise.
Thank you

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Hi! There are some tablets I have my eye on, on ebay. But they've got connections that are made for a mac on them. I was wondering if there is an adapter out there that will let me connect these Wacom tablets to my PC. If they exist and someone can direct me to a place online that sells an adapter, that would be awesome! The sooner, the better please ! Thank you kindly!

A:Mac serial to PC serial adapter?

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On an Acer travelmate 518TX serial port I feed signals coming from a DSP. The signal is processed by a charting software that builds up the page line by line.
Happens that the image makes, at regular intervals a small jump to the left. So doing the final page is make up in stripes.
The software manufacturer states that some othe program is interrupting the incoming data stream from serial port, suggesting to disabling the Power Management System. I did it without any result.
My question is:
Can someone address me to what could be devices or software that commonly sample the serial port ? In order to investigate on how to stop this chopping activity.
Thanks for support

Manlio Laschena

mailto:[email protected]

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I have Palm VIIx. The hot sink was working ok before. But now it says "com1 port used by other programs and so it is not available. I am using windows xp.

A:Serial port

Go into add hardware scroll through to add another port, tell it hardware is there click next when you get to the applet that gives you the option to manually select click it then scroll trought list to find(CON & LPT) high light click next it will appear in the next section that is about all I can remember don't have an XP machine up right now.

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Hi to all, should I install a serial port on the PC Pavilion? you know some working product? thank youDamiano

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I have reviewed the other serial port malfunction thread, but it didn't seem to correct my problem. My computer will not recognize a device plugged into the serial port. I have confirmed the settings for the port which concur with COM 1, but I continue to receive a "device not connected" in the software.

A:Serial Port

Check to make sure the serial port is enabled in the bios. Sometimes, one will be disabled by default (to make us crazy), but it's easy to fix.

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could someone explain to me how to configure a serial port on the back of a laptop so i can connect a dds modem, always on ?

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Hi Support, I have just upadted my windows to 10 (x64) and I have found PCI serial posrt is missing can not updated via windows when i went through the details got that : PCI\VEN_8086&DEV_2E17&SUBSYS_3034103C&REV_03PCI\VEN_8086&DEV_2E17&SUBSYS_3034103CPCI\VEN_8086&DEV_2E17&CC_070002PCI\VEN_8086&DEV_2E17&CC_0700 under Hardwearids, could you help me please!

Lion Lover

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So im going to try to explain this as well as i can.
I am running a windows 7 and I have a radio I would like to program. The main issue is that the program needed to program it is for DOS. So I installed DOS 6.22 On my VMWare virtual machine (VMware Workstation 8.0.0) and ran the program. Now the radio connects with a serial cable. but since I am using my laptop (lenovo ideapad z575) It does not have a Serial port. So I am using a USB to Serial Adapter (Trendnet TU-S9). But DOS will not recognize it.

What I am wanting to do overall is to make my windows 7 computer assume that my USB adapter is a physical Serial port so that I can go into VMware and attach a "physical" serial port to my VM. any Ideas or other suggestion i could try? thanks and sorry for the read.

A:USB serial port help

Did the trendnet USB to serial adapter come with drivers? Usually devices like that will. If not you can find them on the website most of the times. You may have to just install the drivers on your machine, and within the VM.

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serial port disabled need to enable without using cmos (no password)

A:serial port

To enable the serial ports you are going to get the BIOS password or override it. What make and model PC is it? Also what BIOS and version is it? You can see them after powering on the PC while it is booting.

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I have a second older computer for my child, I do not have funds for purchasing new one for about a year. His mouse sucks. It's an old serial port mouse. There seems to be no PS2 port for a mouse. I bought an optical usb. I have a serial to ps2 connector, and a ps2 to usb, all plugged into one another lol. Have floppy for new optical. Reboot. No detection of a mouse. Go to run>A:/setup.exe, it goes to install but doesnt work as it does not detect a device. Do I need an additional driver for the serial to ps2? PLEASE tell me I can do this, I would really like to do this for my kid, if there is a way to config this, please help me? Thank you. He is on win98se. I sure hope I can do this! I would make him one happy kid for sure! ( I cannot stand that serial mouse either !! )

A:serial port to ps2 to usb please???

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I am trying to connect my fiancee's palm pilot via serial port to my computer running windows XP. I have tried both serial ports on the back of my computer (one has a picture of a monitor and one has a picture of what reminds me of a lego Oh, and these are 9-pin ports I believe). Anyway, I can't get the palm pilot to sync with the computer. After looking at the FAQ section on Palm's website, it sounds like the reason it isn't working is because of conflicting COM/IRQ addresses.

Can someone please tell me the best way to see if there are any COM ports available on my computer and, if there's not, how to free one up? Thanks in advance!

A:Serial Port Help

If the plug has a pic of a monitor on it, the socket is probably for the onboard Video. I'm guessing that you are not in the right area for the serial ports?

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i need the pci serial port driver for Elitebook 8460p -Windows 10 64bit

A:pci serial port

Hi: You need this driver for that device... This package provides the Intel Management Engine Interface (MEI) Driver for the supported notebook models and operating systems. The Intel Management Engine Interface enables communication between the host operating system and the Intel Management Engine firmware. ftp://ftp.hp.com/pub/softpaq/sp64001-64500/sp64098.exe

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Everytime I turn on computer its trying to install new hardware. "PCI SERIAL PORT" . Please help me to solve this problem.

A:Pci Serial Port

Give us as much computer info on your system as you can to enable us to help you.

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At work I was using a laptop with a serial port, which I used to communicate with an electronic device. The application used for the communication between the laptop and the device is designed to use a serial port.
The problem is I have now got a new laptop without a serial port (this seems to be the thing now!?) and I'm trying to use the USB port instead. My laptop doesn't like this at all!
Is there any way to configure the laptop to make the application think that it is talking to a serial port when it is in fact connected to the USB?
Any pointers anyone?

A:Serial port and USB

You can purchase a USB to Serial adaptor, I Googled it...

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Why are new systems frequently being made without RS-232 serial ports?

A:New RS-232 Serial Port?

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Hi - I am selling a sewing machine that has a serial port on the side but most people use USB sticks these days to transfer embroidery designs into their machines. The convertors I have seen have a male connection whereas I need a female connection. Does anyone know if there is a convertor that has a female connection? Thanks!

A:Help with serial to USB port

Hi judysue2, and welcome to TSG.

Are you talking about the USB connector or the 9 pin D-sub serial connector?

There are 9 pin serial cables that come in all combinations of male and female connectors on each end. There are also 9 pin D-sub "gender changer" blocks available.

EDIT: The serial port on your sewing machine is most likely designed to connect to a computer running specific downloading software for the machine. A general purpose serial-to-USB adapter would not have the built-in software needed to read the memory stick and send the data to the machine.

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I just installed Windows 7 and updated all my drivers. I am missing two drivers, and I don't know what they are:

PCI Serial Port
PCI Simple Communication Controller

What exactly are these? I own a Lenovo X200 Tablet. Any ideas where I can find the drivers for these two things?


A:PCI Serial Port?H

Hi Akimatsu,

Have a look here
Lenovo Support & downloads - ThinkPad X200 Tablet support

These are for your model, download and try all the Vista drivers that you dont have or you are not sure of

I hope this helps

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Hello ,im using elitebook hp8530p and i cant find driver PCI serial port for windows 10 64bit.Any solution ? Thanks

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Hello. I have a digital camera that must use a serial port. I can not get the comp. to recognize the camera. The software that came with the camera has been successfully installed (or so I'm told). I have two serial ports, one is 9 pin the other is larger.The camera requires the 9 pin connection. The 9 pin is on Com 1 and has the settings IRQ:4 Range:03F8-03FF. I am using a cable modem, and I do not have a dial up modem installed. I have checked the device manager and there are no exclaimation points or "X's" by Com 1. Device manager also reports no conflicts with Com 1. Any suggestions for resolving this problem would be appreciated.

A:serial port

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I need to turn on my serial port and I don't know how to access the controls in the BIOS...
I have a Compaq Presario 5108US desktop. I have disabled the Windows XP "welcome screen" during reboot so that now I see the commands when my computer boots up. I don't know the proper keys to push to allow me to access the BIOS controls.

Can anyone help?

A:Serial port

Sorry I didn't get back to you on the other post, been crazy around here...

Anyway, press F10 repeatedly when your computer boots up to enter the BIOS. After you reach the BIOS main menu, see if you can find a menu or setting for Serial Port. It is probably under the menu, Integrated Peripherals, or a menu similar to that. There should be an "Enable/Disable" option.

Let me know if this works for you

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How does a serial port look like?

A:Serial Port

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Whenever I try to access my serial port, my computer restarts. It does this for both com ports. OS is Win2k. Any ideas?

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I just purchased a Sony Digital8 Cam. The
digital I/O cable that came with the machine
plugs into the serial port. I loaded the
Picture Gear 3.2 Lite software that came with
the camera. But my computer does not recognize the connection. Does anyone have
any tips that I can try? I'm running Win95,
with a weak Pentium 233.

If there is a better way to hook up a Digital
8 cam I'm listining. Oh ya, I have 2 USB ports, but nothing will work in them unless I upgrade to WIN98.

A:Serial Port Problems!

I don't know about cameras, but let's see if it is a COM port problem.

Did you try both serial ports?

Are both serial ports recognized by WIN95? Open Control Panel and click on System.
Left click on the Device Manager tab and scroll down to "Ports (COM & LPT).
Double click.
Are there serial ports listed there?
Any exclamation points?

If one or no ports are listed you will first have to turn them on in your system BIOS. I have mine turned off to free up some IRQs.

You will find them in the BIOS usually on the page called "Integrated Peripherals".
Always write down your bios settings so that you can restore them if neccessary!

If you have both COM ports, and it still doesn't work, hopefully someone who knows a little more can help you further.

Good luck.
[This message has been edited by teejay (edited 04-09-2000).]

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LENOVO 6072BKU ThinkCentre M57
System Serial Number: LKRGBVB
Enclosure Type: Desktop
Processor a Main Circuit Board b
2.20 gigahertz Intel Core2 Duo
64 kilobyte primary memory cache
2048 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded Board: LENOVO LENOVO
Bus Clock: 200 megahertz
BIOS: LENOVO 2RKT64AUS 11/24/2011
Windows 7 Home Premium (x64) (build 7600)
Install Language: English (United States)
System Locale: English (United States)
Installed: 11/4/2012 10:09:09 PM LENOVO 6072BKU ThinkCentre M57
System Serial Number: LKRGBVB
Enclosure Type: Desktop

I'm showing two issues in "Device Manager" (Other Devices)
1. "PCI Serial Port"
2. "Pci Simple Communications"
Don't know whether this is a Bios setting issue or driver issue!
I did make changes to the bios during a fresh install of Win 7, and of course, I didn't write down the original settings!
Everything seems to function alright, but I would like to get the issue notice cleaned up.

Thanks for any help here!

A:PCI Serial Port issues

I suggest running this from Microsoft. Just to check things are okay.
Windows 7 Upgrade Advisor - Download - Microsoft Windows

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Can I install a serial port (9 pin 232) card into my chassis? I need it for machine code transfer to a CNC milling machine (older machine).thank youRickBnks

A:Adding Serial Port

Hi, I know there are few around such as:     https://www.startech.com/au/Cards-Adapters/Serial-Cards-Adapters/2-Port-Native-PCI-Express-RS232-Ser... But I have not tested any of them. I actually use something similar to the following one at least twice a year,      https://www.jaycar.com.au/usb-to-db9m-rs-232-converter-1-5m/p/XC4834 Regards.

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I have a Dell Inspiron 8100 with XP. I shut it down last night after
operating in with my netgear wireless adaptor on a network in a hampton hotel. I got home tonite and on power up it says it has detected new hardware "PCI serial port" and tries to install it. No PCI was installed that I know of. And now my ethernet port seems disabled.
I cannot get it to function here at home where it always has, but my wireless works. I have tried going into Hardware and taking the phantom PCI out and it just keeps coming back. ANY ideas will be greatly appreciated. Thanks

A:XP tries to instal PCI serial port that's not there

Have you tried restoring it to a day before you went away?

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I have just upgraded from Windows 7 to Windows 8.1 which is working fine except that I need to update the PCI Serial Port driver. When I click onto Device Manager under Other Devices it shows I am missing the PCI Serial Port driver as seen below."The drivers for this device are not installed. (Code 28)"Any help would be appreciated, Regards, RNPete

A:Missing PCI Serial Port

Hello RNPete, In device manager, right click on the missing device and select properties from the drop down box. In the window that is populated select the 'Details' tab at the top. Under Property Select 'Hardware Ids', and post the IDs that populate in the Value window here. This is will give me more access to exactly which driver is missing. Phil,   

I am an HP Employee

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I have a 9 pin female serial port loopback tester, but on the other end of it, it is also a 25 pin loopback tester. Whenever I run our serial test, it fails the handshake portion of the test consistently. I have other serial testers, and they work fine, but I need this one to work properly. Is the loopback pinned out differently, or can I jump some of the connections to make it work? Any help is appreciated!


A:Serial Port testing

daves01902 said:

I have a 9 pin female serial port loopback tester, but on the other end of it, it is also a 25 pin loopback tester.Click to expand...

Are you trying to loopback test on the same connector or between two different connectors? You may have a loopback adapter/tester for testing between one serial port with a 9 pin plug and one with a 25 pin plug. I found a description of such a cable in some Sun Microsystems documentation here:


That same documentation has information on wiring 9 pin and 25 pin plugs for loopback testing on the same port.

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I have a toughbook CF-27 that I'm having a problem using the serial port with. It is Pentium 266 mhz with 192 meg running Win98SE.

I am running a DOS program that communicates through the serial port to a RS-232 to RS-485 converter and my signal is not communicating properly. I know its not the converter cause it works on various other equipment. I've tried testing the com port with various com port testers and all test pass. I tried loading problem straight from a dos boot disk and have had no luck. Checked the BIOS settings and everything seems to be correct. The UART on this MOB is the same style as my other laptop.

Not sure where else to check.

Any thoughts?

Thanks in advance

A:Serial Port Problem

Just because an adapter will work on one computer doesn't mean that it will on another.

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i have upgraded to vista and did a clean install. Everything was ok until i was looking in system info. on problem devices it says this
PCI Serial Port
The drivers for this device are not installed.

on device manager there is a yellow box on pci serial port (other devices).on properties it says
manufactor unknown
location pci bus 6 , device 1 , funciton 0

The drivers for this device are not installed. (Code 28)

To reinstall the drivers for this device, click Reinstall Driver.

i did this it searches but cannot find the driver software. i dont have any of my original disks only vista and the drivers are not on there. even tryed on the web but no luck.

i have a emachines pc

OS Name Microsoft® Windows Vista™ Home Basic
Version 6.0.6000 Build 6000
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Manufacturer GATEWA
System Model D915GAG_
System Type X86-based PC
Processor Intel(R) Pentium(R) 4 CPU 2.66GHz, 2666 Mhz, 1 Core(s), 1 Logical Processor(s)
BIOS Version/Date Intel Corp. EV91510A.15A.0067.2004.0722.1717, 22/07/2004
SMBIOS Version 2.3
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United Kingdom
Hardware Abstraction Layer Version = "6.0.6000.16386"
User Name TonyRobbo-PC\TonyRobbo
Time Zone GMT Daylight Time
Total Physical Memory 2,294.18 MB
Availa... Read more

A:pci serial port code 28

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I have a Sony PCG-FRV28 without a serial port. I have tried (2) different USB to Serial cables and (1) PCMCIA to serial card. The computer (running Win Xp Home) seems to recognize the serial adaptor, but the device I am trying to connect to (a touch screen display RS 232 connection via serial port) does not respond. I have tried to assign different COM prots to the serial connection but with no luck. The same cable works on an older Sony running Win 2000. The older Sony has a native serial port built in! I have already tried downloading the latest drivers for the serial cables with no luck.Any suggestions?

A:Serial port problem

I'd look for a PCMCIA serial board, the USB to serial stuff has been problematic for me in several cases. I still have a couple of those adapters that wouldn't work in the application I was attempting to use them.

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Hi i was wondering if you can help me, i have been trying to source the serial port driver for one of the G2s i am working on in order to have everything fully functional, unfortunately i seem to have tried everything and looked everywhere on the site but cant seem to find it. Can you help?

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Hi i was wondering if you can help me, i have been trying to source the serial port driver for one of the G2s i am working on in order to have everything fully functional, unfortunately i seem to have tried everything and looked everywhere on the site but cant seem to find it. Can you help?

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I have an interface that connects to my computer's serial port. Until recently, it worked flawlessly. Last weeks it stopped responding. I thought it could be a cable or interface problem, so I plugged this interface into a Windows NT4 computer and it works fine! Of course, I tried to plug it to the second com port too.
Well, I looked in the device manager if there are any new conflicts- nil. Device Manager says "this device is working properly".
I tried to remove and reinstall the com ports- nada.

Is there any way to know if there is some service or program that perhaps ocupy the serial port so other devices cannot use it?
Any software that can "talk" to the serial port and see if it is functioning?


A:Serial (com) port problem with Win XP?

Hyperterminal will talk to them, and you can tie pins 2-3 together and they'll loopback and echo. There are also a number of serial port diagnostics around, do a search on www.tucows.com, I think you'll find quite a few.

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Please help!
All of the computers at my workplace run on Windows NT. Several people (including myself) have purchased PDA's (Sony Clies) that use a USB port. I have heard that Windows NT does not support USB. Is this true? We really need to be able to HotSync our PDA's at work. Are there any adaptors that would convert USB to a female serial connection? I couldn't find any. Can you think of any other way to get around this problem?

A:USB to serial port adaptor?

No: WinNT does not support USB, however, there are ways to get around it.

Start searching here: http://www.usbman.com/Win NT USB Guide.htm

Has information on the problem, and several solutions.

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I am attempting to download a file to an external device via null modem cable attached to the only serial port on my PC (COM1). When I execute the download command, I receive the following message... "Can't open serial port. Last Error: Access is denied." I am on the system with Admin rights and can access all the advanced features in Control Panel/System/Device Manager/Hardware. Windows XP Professional reports the device as working properly - there are no conflicts or other errors. I explored the TechGuys forum and found and updated my registry to permit access in Device Manager. What else can be done? Are there any tests that can be run from the command prompt to confirm access to COM1?
I am running on a home built system with Intel P4, 2.8GHz, and 1GB RAM.

A:Serial Port Access

Do you have a mode in your computer or any faxing software?

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Hi, I had a ProBook 650 G2 custom built with the internal "real" serial port because I have found USB serial converters to be unreliable. I work in Comms so use serial communications extensivley but have had problems with the ProBook not working when communicating with Alcatel Equipment. I have a number of laptops as some of the software I run was ported from CPM back in the 80s and won't play well with modern machines so I just use another laptop.  Now I am trying to identify the problem and it seems that the issue is the baud rate. The proBook seems to drop characters ( so "Customer login:" may be presented as "toer lo:" ) when running at 115200 N81. The equipment I work with cant be changed to work at a lower baud rate so that is not an option. Other speeds like 9600 N81 work without any problems. "Any" other laptop and a number of USB to serial converters work without issue. I have worked on this equipment at least weekly for the last 8 years so I know that is not the issue and the ProBook is the only common part of the problem. I was hoping that someone may have some ideas I could try before going the warranty route (with the obligitary rebuild of the laptop) as I am not farmiliar with how the PCI serial interface works.

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have a HD tuner card that uses the serial port for the IR receiver. It places a icon in the system tray and that is where the infomation for any timed recording is held. I manually put the system into hibernation and 2 minutes before the recording is scheduled to begin the system wakes up (comes out of hibernation) and the program loads and the recording starts. After the recording the program closes and it shuts down the system (or what ever optiuon you choose).

Problem is it's NOT bringing the system out of hibernation any more. It did orginally, but not now. To make a long story shorter, the problem seems to be in the serial port and/or the TCP/IP portion of it since that is how the communicatiuon is handled so I'm told by the vendor of the card. I tried two other programs that will bring the system out of hibernation and the system does respond.

I tried:
Changing O/S's, both 2k & XP
changing Bios versions
reloading the O/S
reloading the program
removing cards
stopping services
checking voltages on the PS
tried two different versions of the s/w for the tuner card

I have:
Expo 8-RDA mb nForce2 chipset w/ the latest bios
AMD 2100b
Antec True Power 330w
PowerColor 9600Pro
2k w/sp4
NO firewall (someone suggested that)
no viruses or spyware

Any ideas? The card in question is:


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Hi there. Got a question. I have a USB foot pedal but want to know if I can get an adapter to plug it into my 9 pin serial port? Any advice or help on this would be wonderful. I want to use my foot pedal and don't want to shuck out 70 bucks for a new serial port foot pedal...


A:USB Footpedal for serial port?

Why would you want a serial port over a USB connection? Does a game or something not support the USB connection?

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Does the HP Probook 650 G1 Notebook PC come with a built in RS232 serial port. If not is it an option. If it is not avaiable is there a model with the RS232 port built in or available with an option.

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Whenever I try to access my serial port, my computer restarts. It does this for both com ports. Operating system is WIN2k. Anyone have any ideas what the problem could be?

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