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2 Port Low Profile RS-422/485 PCI Serial Card

Add 2 RS422/485 serial ports to your low profile/small form factor computer with a PCI expansion slot

Product ID: PCI2S485LP

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  • High Performance 16C950 UART with maximum data transfer rate up to 115.2kbps
  • Supports RS422 and RS485 serial interface ideal for industrial applications
  • Compatible with PCI and PCI-X slots

The PCI2S485LP 2 Port Low Profile RS-422/485 PCI Serial Card suits a broad range of environments, and is a perfect addition for connecting two-wire (with Auto Transceiver Turn Around feature, ATTATM) and four-wire configured serial devices to a host computer.

Compliant with PCI 2.2 standard specifications, the serial card offers a high performance 16C950 compliant UART and maximum data transfer rates of up to 115 Kbps.

This broadly compatible card can be installed in any available 3.3V or 5V PCI or PCI-X slot, and features a low profile mounting bracket that's suitable for installation in a small form factor case.

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

Applications

  • Ideal for commercial and industrial applications such as POS networks, ATMs, bank teller stations, and CNC based production lines
  • For use in industrial environments with serial networking devices, high speed modems, monitoring equipment, long distance communication devices and printers
  • Factory Automation

The StarTech.com Advantage

  • Data transfer rates of up to 115 Kbps for efficient serial device performance
  • The included breakout cable spreads out the 2 ports, to avoid crowded connections

Partner Numbers

  • UPC 065030826754

Compatibility

  • Windows 8 logo
  • Mac OS X Mavericks (10.9) logo
  • Linux logo
  • Windows 7 logo
  • Windows Server 2012 logo
Windows® 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64), XP Embedded, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, 2000, 98SE, 95, DOS
Windows® Server 2012, 2008 R2, 2003(32/64)
Mac OS® 10.4 and up (Tested up to 10.9)
Linux

Specifications

Warranty Information Warranty Lifetime
Connector(s) 1 - Connector Type(s) PCI / PCI-X (Universal 3.3 & 5V, 32-bit)
2 - External Ports DB-9 (9 pin, D-Sub)
Environmental Operating Temperature -10°C to 80°C (14°F to 176°F)
Storage Temperature -20°C to 100°C (-4°F to 212°F)
Humidity 5~85% RH
Hardware Ports 2
Interface Serial
Bus Type PCI / PCI-X (5 / 3.3V)
Card Type Low Profile
Port Style Dongle (Included)
Chipset ID ASIX - MCS9835CV
Packaging Information Package Length 8.3 in [21 cm]
Package Width 1.6 in [40 mm]
Package Height 5.6 in [14.3 cm]
Shipping (Package) Weight 9.2 oz [260 g]
Performance Serial Protocol RS-422/485
Max Baud Rate 115.2 Kbps
Data Bits 5, 6, 7, 8, 9
FIFO 128 Bytes
Physical Characteristics Product Length 4.7 in [12 cm]
Product Width 0.8 in [20 mm]
Weight of Product 4.9 oz [139 g]
Software OS Compatibility Windows® 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64), XP Embedded, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, 2000, 98SE, 95, DOS
Windows® Server 2012, 2008 R2, 2003(32/64)
Mac OS® 10.4 and up (Tested up to 10.9)
Linux
What's in the Box 1 - Included in Package Serial PCI Card
2 Port DB9 Break-out cable
Driver CD
Instruction Manual

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Driver(s):

Manual(s):

Datasheet

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Frequently Asked Questions

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:

  • Press the Windows key + R, type devmgmt.msc, and press Enter to open Device Manager. Check to see if your device is listed under Ports (COM & LPT).

  • Make sure that the COM port number is the correct number for the serial device and that the software being used to connect the computer to the serial device uses the correct COM port number. 

  • If the device is listed with an error, follow the instructions on the website to reinstall the drivers.

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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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.
*Product appearance and specifications are subject to change without notice.

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