Question about Cables To Go USB to 4-Port DB9 Serial Adapter - 26479

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C2g trulink usb to db9 4 port adapter

Cannot connect with serial peripheral device

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I have sahara n1356 laptop which freezes mouse and keyboard when i start it. what could be a problem


Try following tips:
Try to connect your keyboard and mouse directly to your laptop's USB ports (instead of using the USB hub) and see if they still freeze.
OR
It sounds like you're using an unpowered hub, which in my experience tends to cause most common errors with USB peripherals. It's definitely not recommended to connect any USB devices which aren't supplied with a power adapter (for instance some 2.5" external HDs and those small photo printers). These sort of devices should be connected directly to your laptop at all times.
You could also consider buying a powered hub, i.e. an USB hub which draws its power from a separate power adapter (and not your single laptop USB port).

if it doesn't work you can try this..

Click Start, and type device manager in the Start Search box.
Click Device Manager in the Programs list.
If you are prompted for an administrator password or confirmation, type your password or click Continue.
In the Device Manager dialog box, expand Universal Serial Bus controllers.
Right-click USB Root Hub and then click Properties.
In the USB Root Hub Properties dialog box, click the Power Management tab.
Remove the check from the Allow the computer to turn off this device to save power check box. Repeat steps 1 through 4 for each USB Root Hub listed in the Device Manager.

Under Power settings, check the 'USB settings' -> 'USB selective suspend settings' and make sure it is disabled.
Check Thumbnail, highlighted: Open Device manager, Double click on Universal Serial Bus controller at the bottom, Double Click USB Root Hub, Click Power Management on top right, Uncheck Allow Power...
Hope it works for you.

Sep 20, 2011 | Dell Dimension 8300 PC Desktop

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Options for Adding Serial Ports The serial port is prevalent on PC's ...


Options for Adding Serial Ports
The serial port is prevalent on PC's as well as scores of industrial, scientific and consumer devices, making it a convenient starting point for communications. Since RS-232 itself is only suited to short connections (50 ft. max.) many applications require that it be adapted to fit requirements. RS-422, typically used for extending RS-232 communications, provides full duplex communications between two devices. It can also provide one way communications from one master to several slaves. RS-485 communications standard allows cable lengths up to 4000 feet. It also provides very high noise immunity. Multidrop connections up to 32 different nodes can be made over a single twisted pair cable along with a signal ground connection.
This article summarizes the choices a system designer has when adding a serial (RS-232, RS-422, or RS-485) communications device. There are many different ways to add additional serial ports to your Desktop PC, Palm, or Laptop PC. USB, PCMCIA, PCI and ISA are some of the methods that will be discussed.
The Universal Serial Bus (USB) provides a high data rate and Hot Swap connection for PCs, providing an easy connection to a wide variety of multimedia and network USB devices. Generally considered to be for home or office use, USB is finding its way into Industrial applications.
PCMCIA Serial Ports are yet another way to add serial ports to a PC that has PCMCIA Slots available. Most Laptops today offer only one (if any at all) DB9 type serial ports. A PCMCIA Serial Card is a good way to add a serial port (or ports) to any laptop that is low on available serial ports (RS-232, RS-422 or RS-485).
PCI Cards are becoming more popular as a way to add serial ports to desktop PC's. PCI type slots are becoming the "norm" in standard PC's today, and PCI Serial Cards are an excellent way to add serial ports. The standard Desktop PC may only come with one serial port standard (if any serial ports at all). PCI Serial Cards use Software Drivers to address the ports to the PC.
ISA Cards are yet another way to add serial ports to the older desktop PC's. ISA type slots are becoming scarce in standard PC's today, but are still an excellent way to add serial ports. The ISA Cards are typically addressed using dip switches and shunts or jumpers to set IRQ's for each port. No Software Drivers are required with ISA style serial cards.
Palm OS PDA's may be connected to RS-422 or RS-485 data circuits using Palm adapters. These adapters offer total portability for collecting data and field service chores. The Palm device and the adapter will usually slip into a shirt pocket. Some models use the PDA's connecting cable, some include a cable and some are cradles that allow the PDA to nest in place and connect directly to the Palm base socket. PalmTerm Freeware allows you to transmit and receive data from the Palm serial port.

on Sep 12, 2010 | Computers & Internet

1 Answer

I cannot install the above mentioned scanner since the driver is unspecified


IF IT IS USB BARCODE SCANNER, DO THESE:

1.

Locate the USB connector on the bar code scanner. Bar code scanners, like other computer peripherals, connect to the computer by way of a data cable. At the end of the data cable, most likely opposite the scanner itself, should be a small rectangle-shaped plastic and metal connector. This connector is the USB terminal that will plug in to the computer's USB port.
2.
Locate the USB port on the computer. The USB port, whether on the computer or a peripheral device, will be rectangular in shape and feature either the letters "U S B" or a small network diagram showing two circles, a square, and an arrow.
3.
Connect the USB cable to the computer or peripheral device. Once the USB connector and port have been identified, push the USB connector firmly but gently into the available USB port. USB connectors are keyed so that they can only be inserted the correct way; if you feel solid resistance while inserting the USB connector, remove the connector from the port, turn it over and plug it in.
4.
Install bar-code reading software. While the bar code scanner can scan the bar code into the machine, software must decipher the meaning of the code. Bar code scanners, if purchased new, should include a version of proprietary bar code software compatible with your scanner. If your scanner did not come with software, or if it is missing the installation disc, bar code software may be purchased on the Internet from sites like WaspBarcode.com.



TO INSTALL A SERIAL BAR CODE SCANNER, DO THESE:




1.

Locate the serial connector on the bar code scanner. Bar code scanners, like other peripherals, connect to the computer by way of a data cable. At the end of the serial cable should be a rectangular, typically male connector. The cable may be pinned with nine, sixteen, or more pins depending on the design of the scanner.
2.
Locate the serial port on the computer. Most computers have at least one serial port, usually found on the back of the machine. The port will be female, maybe blue in color, rectangular in shape, and should be approximately the same size (or slightly smaller) as the serial connector.
3.
Connect the serial cable to the computer or connected peripheral. When both the connector and port have been identified, push the serial connector firmly but gently into the port. Like USB connectors, serial connectors are keyed so that they can only be inserted the correct way; if you feel solid resistance while inserting the connector, remove the connector from the port, turn it over and plug it in. Do not use excessive force while pushing on the serial connector, as it is possible to bend the connecting pins and damage the connector.
4.
Install bar-code reading software. While the bar code scanner can scan the bar code into the machine, software must interpret the meaning of the code. Bar code scanners, if purchased new, should include a version of proprietary bar code software compatible with your specific scanner. If your scanner did not come with software, or if it is missing the installation disc, bar code software may be purchased on the Internet from sites like WaspBarcode.com.



THANKS AND WELCOME.

Apr 12, 2011 | Computers & Internet

1 Answer

Hai mr.igot problem when i install usb bf-810 iwas isntal driver but when i plug the port inthe PC it's show"USB devivice not recognice"can u solve my problem


Before you start installing the driver, please don’t plug your USB TO Serial Adapter into the USB port of your computer.  Follow the steps below to install Windows® 98 or Windows® ME driver 5.1 Turn on the power of computer and make sure the USB port is enabled and can working properly. 5.2 Insert the driver of USB-SERIAL ADAPTER into CD-ROM drive. Select “Install Products - USB-SERIAL ADAPTER - Install”. 5.3 Select the “Next” to install.
Before you start installing the driver, please don’t plug your USB TO Serial Adapter into the USB port of your computer.  Follow the steps below to install Windows® 2000 driver 6.1 Turn on the power of computer and make sure the USB port is enabled and can working properly. 6.2 Insert the driver of USB-SERIAL ADAPTER into CD-ROM drive. Select “Install Products - USB-SERIAL ADAPTER - Install”. 6.3 Select the “Next” to install.  Before you start installing the driver, please Don’t plug your USB TO Serial Adapter into the USB port of your computer.  Follow the steps below to install Windows® XP driver 7.1 Turn on the power of computer and make sure the USB port is enabled and can working properly. 7.2 Insert the driver of USB-SERIAL ADAPTER into CD-ROM drive. Select “Install Products - USB-SERIAL ADAPTER - Install”. 7.3 Select the “Next” to install.
.1 Driver Installation (MAC OS X) 8.1.1 Power on your computer and make sure that USB port is enabled and working properly. 8.1.2 Insert the USB adapter software driver into CD-ROM driver. 8.1.3 Click "USB-SERIAL ADAPTER\DRIVER\MAC\OS X " folder run on "PL2303_1.2.1r2.dmg", it will auto run the program and appear "PL2303 driver" folder in the desktop. 8.1.4 Click on "PL2303 driver" folder , execute "USBSerialOSX1.0.9b6.pkg" will auto install, you may change the driver directory that you want to install. 8.1.5 System will demand restart computer. 8.1.6 Plug in the USB-Serial adapter into USB port. 8.1.7 To make sure that your computer can use the device, you have check the "Apple System Profile"-"Device and Volumes". It will show the USB Device.It will show in USB port "USB-Serial Controller". 8.2 Driver Installation (MAC OS 8&9) 8.2.1 Power on your computer and make sure that USB port is enabled and working properly. 8.2.2 Insert the USB adapter software driver into CD-ROM driver. 8.2.3 Click "USB-SERIAL ADAPTER\DRIVER\MAC\OS_89" run on "PL2303_OS9_v136b1.hqx",it will auto run the program and appear "ProlificUSBSerial" file. 8.2.4 Copy "ProlificUSBSerial" file into "system folder"-"Extension". 8.2.5 Plug in the USB-Serial adapter into USB port. 8.2.6 To make sure that your computer can use the device, you have check the "Apple System Profile"-"Device and Volumes". It will show the USB Device.It will show in USB port "USB-Serial Controller". Follow the steps below to install driver of USB-Serial adapter:
hope that helps you

May 29, 2010 | BafoTech BAFO BF-810 Serial Adapter

1 Answer

Pci card doesint work


What you want is a USB hub.  That will allow you to connect more than two USB devices to your computer.  There are two types, USB 2.0 and USB 1.1.  USB 1.1 will work for most slow speed devices, USB 2.0 is better for cameras and hard disks that have the support.  You should confirm which version of USB your computer has, but you should be OK getting a USB 4-port hub, plugging that into your computer, then plugging your keyboard and mouse into the hub and using the other port for the new peripheral that you wish to install.  Old PCI cards are problematic because you need the correct drivers.  You also need to make sure you plug them into the proper PCI port.  It sounds like the device you got from e-bay might be bad, so you shouldn't continue to use it.  If you post the make / model of your computer we might be able to suggest a new PCI card that will work if you still want to add more ports to your computer.

Apr 21, 2009 | VIA Vectro VT6212 (A62124) Serial Adapter

1 Answer

I need a Vista driver for the USA-19QW Serial Adapter


I have an old 4-port Keyspan serial device that also doesn't work with Vista.  Unfortunately Keyspan didn't provide Vista drivers for some of the older USB to Serial devices before they were acquired by Tripp-Lite, so you will probably need to get a replacement (Keyspan usa-19hs has Vista support, that one works for me).  The support page for Keyspan USB devices is here: USB Connectivity & Device Servers

Apr 20, 2009 | Keyspan (USA-19QW) Serial Adapter

4 Answers

I need to connect a receiver to my computer's serial port, and it doesn't work


which serial port and where > sounds like ya need to do the updates on that computer..... and where or why havent you contacted the makers of that computer to see if they can issue support for that simple task ?

Jul 19, 2008 | Dell Dimension 4600 PC Desktop

1 Answer

Canon BJC 2000 question-1284 to usb


Normal 0 MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} USB to Parallel conversion requires translation by XP and Vista's 'hardware interleave' software as well as the USB device manufacturers driver. The software package just doesn't work well with older peripherals that use legacy parallel or serial com ports. Too many sloppy layers.

THE BEST WAY to add an LPT printer port to your laptop is to use a PCMCIA to Parallel adapter card.
The PC Card slot provides access to the laptop's data bus, and the PC Card adapter easily sets up as a native LPT port within almost any OS.

There is no delay, or connection problems as I've seen in so many complaints about USB to Parallel or Legacy Serial adapters. Printing is Instant.

PCMCIA is a mature standard, and works seamlessly with XP and Vista, and almost any other OS.

PARALLEL is the old standard fast data protocol. IEEE 1284 ECP mode up to 1.5 Mbps.
The BJC-80 and the BJC-85 have the same print speed. The BJC-85 just added USB.

INFRARED is ver 1.0 on the BJC-80, and printing is a bit slower at 115.2 kbps. Even the BJC-85 with its higher IRDA transfer rating and a laptop's built-in IR port, the XP print spooler has problems with it, and can hang if printing more than one page, and especially with more than one document. It will not scan.

I use IR for printing single pages only with either the BJC-80 or BJC-85.
USB to IRDA adapters work fine, and are less expensive $5-6 than
PCMCIA to Parallel adapters, $20-25.

I have tested and used several PCMCIA adapters from different manufacturers, and they all work perfectly as a hot-pluggable, instant LPT and/or Legacy Serial port for my laptops.
TIPS:
After installing the PC Card driver, check Device Manager for the LPT port number.
Install the printer manually from the list of printers, and select the proper LPT port.
Most laptops have two PCMCIA slots. If you change slots, the adapter card driver may reinstall, and assign the next available LPT port, LPT2.

To scan with the BJC-80, you must have an LPT port.
The PC Card adapter also allows the use of the IS-12 scanner cartridge within XP or Vista.
Within Vista, set the Canon ISScan software to run in Windows 98 compatibility mode, to allow use of the TWAIN driver.

Jun 05, 2008 | Canon BJC 80 InkJet Printer

1 Answer

USB-Serial Adapter


You have to setup the com prot for the serial connection to be recognized.
Go to the system ICON in the control settings.
Select hardware tab then device manager
you'll see the com ports select com port one
right click and select properties then the port settings tab.

Check you product adapter and make sure you have set the speed settings, data bits, flow control according to manufactures specs. save and this should solve you problem.
note: make sure there is no other peripheral operating on your system this may be utilizing your comports and restricing your connection.
good luck.

Oct 02, 2007 | Quatech SSU-100 Serial Adapter

1 Answer

Sync via bluetooth


Does your USB adapter provide serial port connections ? I had the same issue with an USB adapter with a dedicated-to-phone software. I changed to MSI bluetooth adapter and then made a serial port available to COM5, then connect activesync to COM5. (make sure on the ipaq you create a shortcut "activesync connection" and pair with the bluetooth adapter.

Sep 11, 2005 | HP iPAQ hx2410 Pocket PC

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