2 Port ISA RS232 Serial Adapter Card with 16550 UART
Add 2 RS232 ports to legacy computer systems through an ISA slot
Product ID: ISA2S550
- Supports COM1-COM7 and IRQ 3,4,5,9,10,11,12,15 settings for each port
- Full jumper set to ensure compatibility with almost any PC system
- Supports the RS-232 interface
StarTech.com's ISA-based RS232 Serial Card (16550 UART) can be installed in an ISA motherboard slot to add two RS232 serial COM ports, with support for data transfer rates of up to 460.8Kbps for peak serial device performance.
The ISA Serial Adapter Card includes drivers for DOS®, Windows® and LInux, and offers a full built-in jumper set to ensure easy configuration and broad compatibility.
A cost-effective solution for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, to a system, the ISA serial card is backed by StarTech.com's Lifetime Warranty and free lifetime technical support.
- Manufacturing (CNC machinery, process control equipment, bar code scanners, serial printers)
- POS (credit/debit card readers, receipt printers, bar code scanners, cash registers, scales)
- Consumer (modems, PDAs, digital cameras, printers)
- Security (UPS control, access key panels, video cameras, card readers, modems)
- Casino (video lottery terminals, slot machines)
- Environmental Control (lighting, temperature, clocks)
- Healthcare (patient monitoring equipment, nurses' stations, modems)
- Hotel Front Desk (serial printers, bar code scanners, keyboard, mouse, receipt printer, credit/debit card reader)
- Hospitality/Restaurant (credit card/debit card reader, serial printers)
- ISDN Networking
The StarTech.com Advantage
- Built-in jumpers allow easy configuration to any free IRQ
- Data transfer rates of up to 460.8 Kbits/sec. for peak serial device performance
- Easy to install and use with full step-by-step instructions
|Card Type||Standard Profile|
|Chipset ID||ASIX - MCS9820CV|
|Port Style||Integrated on Card|
|Max Baud Rate||460.8 Kbps|
|Connector Type(s)||1 - ISA (16-bit) Male|
|External Ports||2 - DB-9 (9 pin, D-Sub) Male|
|OS Compatibility||DOS, Windows 95, 98, ME; Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit); Linux 2.4.x|
|Operating Temperature||-10°C to 80°C (14°F to 176°F)|
|Storage Temperature||-20°C to 100°C (-4°F to 212°F)|
|Package Height||14 cm [5.5 in]|
|Package Length||15.2 cm [6 in]|
|Package Width||24 mm [0.9 in]|
|Shipping (Package) Weight||0.1 kg [0.3 lb]|
|What's in the Box|
|Included in Package||1 - I/O CARD|
|1 - Instruction Sheet|
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Frequently Asked Questions
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:
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 you do not see the COM port number in Device Manager see this FAQ for PCI/PCIe expansion cards: https://www.startech.com/support/faqs/technical-support?topic=expansion-cards#pci-pcie-cannot-boot-os-or-detect-windows
or this FAQ for USB devices: https://www.startech.com/support/faqs/technical-support?topic=expansion-cards#usb-cannot-detect-windows
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.
Perform a serial loopback test. See this FAQ on how to perform a RS-232 serial loopback test: http://www.startech.com/faq/serial_loopback_test_rs232_windows
To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following:
- 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.
- 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.
- 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.
- 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
- 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.