StarTech.com

4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add four RS232 serial ports to any PC using a single PCI Express expansion slot

Product ID: PEX4S952

  • Four high speed RS-232 serial ports with data transfer rate up to 460.8 Kbps
  • Includes low profile/half height mounting bracket
  • 128-byte deep FIFO per transmitter and receiver
View More
  • High Performance Oxford 16950 UART
  • Native single-chip, single lane PCI Express
  • Compliant with PCI Express base specifications revision 1.0a
  • Selectable power output on pin 9 for the serial port
  • Automated in-band software flow control using programmable Xon/Xoff in both directions
  • Automated out-of-band hardware flow control using Tx/Rx/RTS/CTS/DSR/DTR/DCD/RI/GND
£109.99 GBP exc VAT
£131.99 GBP inc VAT
215+ In stock

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Overview

The PEX4S952 4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART allows you to turn a PCI Express slot into 4 RS-232 (DB9) serial connections.

The four port serial card is based on a native single chip design, that harnesses the full capability of PCI Express (PCIe) - providing optimum reliability and speed, and reducing the load applied to the CPU by as much as 48% over conventional serial cards.

Offering compatibility with a broad range of operating systems including Windows®, Linux and Mac® OS for easy integration into mixed environments. Plus, an included optional low profile/half-height bracket that allows the card to be installed in virtually any computer case – making it that much easier to add serial ports to your PCI Express enabled computer, regardless of the case form factor.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

The StarTech.com Advantage

  • Native single-Chip, single lane PCI Express offers increased performance, for up to 48% less cpu load
  • Data transfer rates of up to 460 Kbps for efficient serial device performance
  • Pre-configured for standard profile systems but includes a low profile bracket for versatility

Applications

Self service automated machines and kiosks to control serial devices such as scales, touchscreens, magnetic card readers, bar code scanners, receipt printers, label printers

POS retail applications in grocery stores, and any other retail store to control keyboards, cash drawers, receipt printers, card readers / card swipes, scales, and elevated displays on poles

Bank teller workstations in either full profile or low profile versions to control their serial devices such as cash drawers, card readers / card swipes, printers, keypads / pinpads, pen pads

Standard ATM automated teller machines to control keypads, receipt printer, card readers / card swipes, touchscreen LCD's, camera control, etc.

Used to control multiple surveillance / security cameras in a parking structure, office building, etc.

Technical Specifications

Warranty Information
Warranty Lifetime
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID PLX/Oxford - OXPCIe954
Interface Serial
Port Style Integrated on Card
Ports 4
Performance
Data Bits 5, 6, 7, 8
FIFO 128 Bytes
Max Baud Rate 460.8 Kbps
MTBF 87,600 Hours
Serial Protocol RS-232
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 4 - DB-9 (9 pin, D-Sub) Male
Software
OS Compatibility Windows® CE 6.0/5.0/4.2, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 4.11.x LTS Versions only
Environmental
Humidity 5~85% RH
Operating Temperature -10°C to 80°C (14°F to 176°F)
Storage Temperature -20°C to 100°C (-4°F to 212°F)
Physical Characteristics
Product Height 20 mm [0.8 in]
Product Length 90 mm [3.5 in]
Product Weight 58 g [2 oz]
Product Width 65 mm [2.6 in]
Packaging Information
Shipping (Package) Weight 0.5 kg [1 lb]
What's in the Box
Included in Package 1 - 4 Port Serial Card
1 - 4 Port DB9 Break-out cable
2 - Low Profile Bracket
1 - Driver CD
1 - Instruction Manual

Compatibility

View full OS compatibility
Windows® CE 6.0/5.0/4.2, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 4.11.x LTS Versions only

Certifications

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8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
PEX8S952
8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add 8 RS232 serial ports to your computer via a single PCI Express slot

£212.99 exc VAT
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Accessories

Product Support

Drivers & Downloads

Driver(s):
Manual(s):
Data Sheet(s)

Frequently Asked Questions

Installation

Before you install the device, make sure that your operating system is current (for example, the most recent service pack is installed).

  1. Download the latest drivers from the StarTech.com website at http://www.startech.com/Support. The part number and product ID are on the product packaging.

Note: Windows usually saves the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. Press the Windows key + R, type devmgmt.msc, and press Enter to open the Device Manager.
  3. Right-click PCI Serial Port, which will have a “!” or “?” next to it to indicate a driver issue.
  4. Click Update Driver.
  5. Click Browse my computer for driver software.
  6. Select the Let me pick from a list of device drivers on my computer option.
  7. On the Select your device’s type from the list below screen, click Show All Devices, and click Next.

Note: The Select your device’s type from the list below screen does not appear on all systems. If you do not see this screen, skip this step.

  1. Select the Have Disk option.
  2. Browse to the Windows folder, select the folder for your operating system, and open the 32-bit or the 64-bit folder, depending on your system type.

Note: To view your system type, click Start. Right-click Computer, and then click Properties.

  1. Click the OxMf or OxPCIeMf file. Click OK, and then click Next.

Note: If you are using a serial card that uses the OxPCIeMf file and installation fails, repeat steps 4 to 9, then browse to the Windows folder. Browse to the Serial Port Driver folder and click the oxserleg file.  Click OK, and then click Next.

Before you install the device, make sure that your operating system is current (for example, the most recent service pack is installed).

  1. Download the latest drivers from the StarTech.com website at http://www.startech.com/Support. The part number and product ID are on the product packaging.

Note: Windows usually saves the files to the Downloads folder that is associated with your user account (for example, C:\Documents and Settings\your_name\My Documents\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. Press the Windows key + R, type devmgmt.msc, and press Enter to open the Device Manager.
  3. Right-click PCI Serial Port, which will have “!” or “?” next to it to indicate a driver issue.
  4. Click Update Driver.
  5. On the Hardware Update Wizard screen, click Install from a list or specific location (Advanced), and then click Next.
  6. Select the Don’t search, I will choose the driver to install option, and then click Next.
  7. On the Hardware Type screen, click Show All Devices, and then click Next.

Note: The Hardware Type screen does not appear on all systems. If you do not see this screen, skip this step.

  1. On the Select the Device Driver you want to install for this hardware screen, select the Have Disk option.
  2. In the Install from Disk dialog box, click Browse.
  3. Browse to the Windows folder, select the folder for your operating system, and open the 32-bit or the 64-bit folder, depending on your system type.

Note: To view your system type, click Start. Right-click Computer, and then click Properties.

  1. Click the OxMf or OxPCIeMf file. Click OK, and then click Next.

Note: If you are using a serial card that uses the OxPCIeMf file and installation fails, repeat steps 4 to 10, then browse to the Windows folder. Browse to the Serial Port Driver folder and click the oxserleg file.  Click OK, and then click Next.

How to

To confirm that Windows detects your expansion card, complete the following:

  1. Press the Windows key+R, type devmgmt.msc, and press Enter.
  2. In Device Manager, under the appropriate heading, confirm that your expansion card is listed and that there isn't an exclamation mark next to it.  For example, a USB controller card would be under Universal Serial Bus controllers.

Your expansion card is listed according to the name of the chipset. To determine the name of the chipset of your expansion card, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Troubleshooting

When you troubleshoot issues with a serial device, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Serial cables

  • Serial ports

  • Serial devices

To test your setup components, try the following:

  • Use the serial cable, serial port, and serial device in another setup to see if the problem is with the components or the setup.

  • Use a different serial cable, serial port, and serial device in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

When you test the serial ports and serial device, it is recommended that you do the following:

Note: Some serial devices work only if the COM port number is between a certain range. For example, COM1 to COM4.

To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following:

  1. If your serial port is not female, convert it by taking a female/female cable or gender changer and plugging it into the serial port.
  2. Take a metal paperclip or wire and cross pins 2 and 3. If you look closely at the female end, the pins should be numbered.
  3. Open a telnet session on the COM port number of the device that you are testing. To find out the COM port number, refer to the following FAQ: https://www.startech.com/faq/com-port-listing-windows.

Note: To open a telnet session on the COM port, you need a telnet client like PuTTY or Hyper Terminal. Windows XP comes with Hyper Terminal.

  1. When the session is open, anything you type into it you should see. The loopback test fails when you cannot see what you are typing.

If the loopback test fails, make sure that the serial cable or gender changer that you are using works and that the adapter is in the correct port. 

You can check multiple ports at the same time by opening multiple sessions, putting the loopback adapter on one port, and trying to type into each session.  When you can see what you are typing, you know that the COM port is working and you can see which port number the physical serial port is. Close the window for the port that you just tested to speed up the testing of the remaining serial ports.

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4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

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