StarTech.com

2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

Add 1 parallel port and 2 RS-232 serial ports to your standard or low-profile computer through a PCI Express expansion slot

Product ID: PEX2S5531P

  • Two high speed RS232 serial ports with data transfer rate up to 460.8 Kbps
  • One parallel port with data transfer rate up to 1.5 Mbps
  • Compliant with PCI Express base specifications revision 1.0a
View More
  • 128-byte deep FIFO per transmitter and receiver
  • Configurable in 5V, 12V, and RI (non-powered) modes
  • Selectable power output on pin 9 for the serial port
  • Native single-chip, single lane PCI Express
  • Automated out-of-band flow control using CTS/RTS and DSR/DTR
  • Automated in-band flow control using programmable Xon/Xoff in both directions
¥6,132 JPY exc tax
¥6,622 JPY inc tax

Overview

The PEX2S5531P 2S1P PCI Express Card turns a PCI Express slot into two RS232 (DB9) serial ports and one Parallel port. The adapter card features a native PCI Express single chip design that allows you to take advantage of full PCI Express capability, providing improved speed and reliability while reducing the load applied to the CPU by as much as 48% over conventional serial cards which use a bridge chip design.

Compatible with a broad range of operating systems including Windows® 2000/XP/2003/Vista™/Windows 7/Server 2008 R2 (32 and 64-bit), Linux Kernel 2.6.11 and up, and MAC OS 10.4, this 2 Port Serial 1 Port Parallel PCI-Express Card also features an optional low profile/half-height bracket that allows the card to be installed in virtually any computer case, regardless of the case form factor.

This product is a replacement for our PEX2S5521P card.

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

The StarTech.com Advantage

  • Native single-chip, single lane PCI Express chipset delivers true PCIe performance
  • Standard and low profile/half-height bracket included to ensure fitment in any system
  • Easy to install and use with full step-by-step instructions saving time and hassle

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 2 Years
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID ASIX - MCS9901CV-CC
Industry Standards IEEE 1284
PCI Express base specifications revision 1.0a
Interface Parallel
Serial
Port Style Integrated on Card
Ports 2
Performance
FIFO 128 Bytes
Max Baud Rate 460.8 Kbps
Maximum Data Transfer Rate RS-232 - 460.8Kbps
Parallel - 1.5Mbps
Serial Protocol RS-232
Supported Protocols EPP, ECP, SPP, PS/2
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 1 - DB-25 (25 pin, D-Sub) Female
2 - DB-9 (9 pin, D-Sub) Male
Internal Ports 1 - LP4 (4 pin, Molex Large Drive Power) Male
Software
OS Compatibility Windows® DOS, 95, 98SE, 2000, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, XP Embedded, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS X® 10.4 to 10.9
Linux 3.5.x to 4.11.x LTS Versions only
Special Notes / Requirements
Note Selectable power output on pin 9 of the serial port
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 0.8 in [20 mm]
Product Length 4.1 in [105 mm]
Product Weight 4.9 oz [140 g]
Product Width 4.7 in [120 mm]
Packaging Information
Shipping (Package) Weight 0.5 lb [0.2 kg]
What's in the Box
Included in Package 1 - 2 Port PCI-Express Serial Card
1 - Parallel port (with ribbon cable)
3 - Low Profile Brackets
1 - Driver CD
1 - Instruction Manual

Compatibility

View full OS compatibility
Windows® DOS, 95, 98SE, 2000, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, XP Embedded, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS X® 10.4 to 10.9
Linux 3.5.x to 4.11.x LTS Versions only

Certifications

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Product Support

Drivers & Downloads

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

Frequently Asked Questions

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.

Installation

Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

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

  1. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. Select the appropriate folder for your operating system.
  3. Right-click Setup.exe. 
  4. Click Run as Administrator.

Note: If the Run as Administrator option is not available, you might be attempting to run the installer from within the zipped file. Extract the files using the instructions in Step 2.

  1. Follow the on-screen prompts to install the device drivers and restart the computer when prompted.
  2. Your computer will automatically complete the driver installation and your device should be ready to use.

Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

Note: Windows will typically save 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. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. Select the appropriate folder for your operating system.
  3. Double-click Setup.exe.
  4. Follow the on-screen prompts to install the device drivers and restart the computer when prompted.
  5. Your computer will automatically complete the driver installation and your device should be ready to use.

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 Drivers folder and open the 32-bit or the 64-bit folder, depending on your system type.

Note: To view your system type, press Windows key + R, type control /name microsoft.system, and press Enter.

  1. Click the StnMF file or the NmXpMf file (only one of the file names is displayed). Click OK, and then click Next.
  2. The COM ports are listed in Device Manager under Ports (COM & LPT). Repeat steps 4 to 11 for each of the COM ports, selecting the StnPorts file or the NmPorts file in step 11.

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 Drivers folder and open the 32-bit or the 64-bit folder, depending on your system type.

Note: To view your system type, press Windows key + R, type control /name microsoft.system, and press Enter.

  1. Click the StnMF file or the NmXpMf file (only one of the file names is displayed). Click OK, and then click Next.
  2. The COM ports are listed in Device Manager under Ports (COM & LPT). Repeat steps 4 to 11 for each of the COM ports, selecting the StnPorts file or the NmPorts file in step 11.

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.

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

  1. Click the Apple icon.
  2. Click About This Mac.
  3. Click More Info or System Report.
  4. Under the appropriate heading, confirm that your expansion card is listed and that there isn't an error. For example, a network card would be under Ethernet Cards.

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

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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When you troubleshoot issues with a serial or parallel hybrid 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 or parallel cables

  • Serial or parallel ports

  • Serial or parallel devices

To test your setup components, try the following:

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

  • Use a different serial or parallel cable, serial or parallel port, and serial or parallel 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 or parallel ports and serial or parallel device, it is recommended that you do the following:

Note: Some serial devices work only if the COM or LPT port number is between a certain range. For example, COM1 to COM4 for serial and LPT1 and LPT2 for parallel.

Note: There is not an equivalent loopback test that can be performed for parallel devices.