Seriellt RS232 mini PCI express-kort med 16950 UART och 2 portar

Lägg till två RS232-serieportar till ett inbyggt system med en mini PCI-Express-kortplats

Produkt ID: MPEX2S952

  • Kompatibelt med PCI express-basspecifikation revision 1.1a
  • Dubbel Oxford-kanal 16950 UART med hög prestanda
  • Single lane PCI express med ursprungligt enkelchip

MPEX2S952 Seriellt Mini PCI Express-kort med 2 portar förvandlar en mini-PCIe-kortplats till två RS232 (DB9) seriella portar – en kostnadsbesparande lösning för att lägga till äldre seriell support till inbyggda system som i vanliga fall inte är kompatibla.

Kortadaptern har en ursprunglig PCI express enkelchip-design som låter dig utnyttja PCI express kapacitet till fullo och ger förbättrad hastighet och pålitlighet samtidigt som den reducerar CPU-belastningen med så mycket som 48 % jämfört med vanliga seriella kort som använder bridge-chip.

Mini PCI Express RS232-seriekortet med 2 portar är framtaget för att ge lång hållbarhet och stor pålitlighet samt täcks av vår livstidsgaranti och gratis livstidsgaranti på teknisk support.


MPEX2S952 Application Diagram 1

MPEX2S952 Application Diagram 2


  • Lägg till seriella portar till industriella inbyggda datorer och system
  • Lägg till seriell RS232-kontroll till en inbyggd eller ett smal mediacenter/en smal mediaserver
  • Extra portar till kompakta POS-system
  • Anslut till alla moderkort med en PCI Express-minkortplats

Fördelarna med StarTech.com

  • Ursprunglig enkelchip-design innebär upp till 48 % lägre belastning på din CPU vilket är mycket viktigt för små inbyggda datorer som använder mindre ström, låg MHz CPU:er
  • Den minsta tillgängliga formfaktorn för att lägga till serieportar till ett inbyggt system
  • Täcks av StarTech.coms gratis livstidsgaranti.


  • UPC 065030840019


  • Windows 8 logo
  • Windows Server 2012 logo
  • Linux logo
  • Windows 7 logo
  • Windows Server 2016 logo
Windows® CE 6.0 / 5.0, 95, 98SE, 2000, XP, XP Embedded, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 4.4.x LTS Versions only


Warranty Information Warranty Lifetime
Förpackning Package Length 21,2 cm [8,4 in]
Package Width 38 mm [1,5 in]
Package Height 15 cm [5,9 in]
Fraktvikt (förpackning) 140 g [4,9 oz]
Hårdvara Portar 2
Gränssnitt Seriell
Busstyp Mini PCI Express
Korttyp Inbyggd
Porttyp Dongel (medföljer)
Chipset-ID PLX/Oxford - OXPCIe952
Kontakt(er) 1 - Kontakttyp(er) Mini PCI Express x1 (52-stifts)
2 - Externa portar DB-9 (9-stifts, D-Sub)
Miljö Drifttemperatur -10°C to 80°C (14°F to 176°F)
Förvaringstemperatur -20°C to 100°C (-4°F to 212°F)
Luftfuktighet 5~85 % RH
Mjukvara OS-kompatibilitet Windows® CE 6.0 / 5.0, 95, 98SE, 2000, XP, XP Embedded, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 4.4.x LTS Versions only
Microsoft WHQL-certifierad Ja
Prestanda Seriellt protokoll RS-232
Maximal överföringshastighet 460.8 kbps
Databitar 4, 5, 6, 7, 8
FIFO 128 Bytes
Flödeskontroll Ingen, Xon/Xoff, RTS/CTS
Paritet None, Odd, Even, Space, Mark
Stoppbitar 1, 1.5, 2
Utseende Färg Grön
Produktlängd 50 mm [2,0 in]
Produktbredd 30 mm [1,2 in]
Produkthöjd 10 mm [0,4 in]
Produktvikt 6 g [0,2 oz]
Vad det är i lådan 1 - Ingår i paketet Mini-PCIe-seriellt kort med 2 portar
2 - Ingår i paketet DB9-bandkabel
1 - Ingår i paketet LP4 till 6 stifts-strömkabel
Drivrutin CD


Prata med en rådgivare.

Vi är alltid redo att hjälpa dig med alla dina frågor.

Direktchatt (opens in new window)




Prata med en rådgivare.

Vi är alltid redo att hjälpa dig med alla dina frågor.

Direktchatt (opens in new window)

Vanliga frågor


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.


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.

Hur man

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.

Before You Buy

Serial cards derive power from the PCI or PCI Express slot on the motherboard. When you power serial devices from the serial card ports, the power provided by the slot may not be enough to power all of the devices and you should connect additional sources of power from the power supply. When you troubleshoot issues, you should connect an additional source of power.

Some signs that you are experiencing power-related issues include certain devices not working correctly, not all of the devices working at the same time, and certain devices not working at all.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
* Produkters utseende och specifikationer kan komma att ändras utan förvarning.
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