USB Converters


Connect RS-232, RS-422, RS-485 devices to USB ports. Options include: rugged, isolated, multi or single port, inline/panel/DIN mount and more.

  • ADAM-4561


    ADAM-4561/4562 allows PC users to connect a serial device to a system that use a USB interface. To attach the ADAM-4561/4562 to a PC, you don’t need to open the chassis or power down your PC. Instantly get one or two extra high-speed RS-232/422/485 ports. The power is derived from the USB port, so there are no power adapters to deal with. Thismakes the ADAM-4561/4562 especially suitable for modems, printers, POS systems and industrial control devices.


  • ADAM-4562


    ADAM-4561/4562 allows PC users to connect a serial device to a system that use a USB interface. To attach the ADAM-4561/4562 to a PC, you don’t need to open the chassis or power down your PC. Instantly get one or two extra high-speed RS-232/422/485 ports. The power is derived from the USB port, so there are no power adapters to deal with. Thismakes the ADAM-4561/4562 especially suitable for modems, printers, POS systems and industrial control devices.<br>Compliant with USB V1.1, ADAM-4561/4562 features several powerful functions such as high-speed 115.2 kbps transmission, support for various operating systems, independentRS-232/422/485 ports and more. By simply plugging in a USB hub, ADAM-4561/4562 eliminates the configuration issues associated with high-priced, older card solutions. Youonly have to install the drivers, no need to set cards slots, IRQ addresses, DMA channels, or device addresses. This reduces programming effort.


  • BB-232USB9M


    Supports RS-232 communication. Easy to set up with DB9 M on the RS-232 side. A USB cable is included. Small form factor. USB Port Powered.


  • BB-232USB9M-LS


    Supports RS-232 communication. Easy to set up with DB9 M on the RS-232 side. A USB cable is included. Small form factor. USB Port Powered.


  • BB-485USB9F-2W


    Supports 2-Wire RS-485, long range and multi-drop communication. Easy to set up with DB9 F on the RS-485 side. A USB cable is included. USB Port Powered.


  • BB-485USB9F-2W-LS


    Supports 2-Wire RS-485, long range and multi-drop communication. Easy to set up with DB9 F on the RS-485 side a USB cable is included. USB Port Powered.


  • BB-485USB9F-4W


    Supports 4-Wire RS-485, long range and multi-drop communication. Easy to set up with DB9 F on the RS-485. A USB cable is included. USB Port Powered.


  • BB-485USB9F-4W-LS


    Supports 4-Wire RS-485, long range and multi-drop communication. Easy to set up with DB9 F on the RS-485. A USB cable is included. USB Port Powered.


  • BB-485USBTB-2W-A


    Supports 2-wire RS-485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-485 side and a high retention USB connector that works with a standard USB cable (included). Small form factor. USB Port Powered.


  • BB-485USBTB2WLS-A


    Supports 2-wire RS-485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-485 side and a high retention USB connector that works with a standard USB cable (included). Small form factor. USB Port Powered.


  • BB-485USBTB-4W-A


    Supports 4-wire RS-485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-485 side and a high retention USB connector that works with a standard USB cable (included). Small form factor. USB Port Powered.


  • BB-485USBTB4WLS-A


    Supports 4-wire RS-485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-485 side and a high retention USB connector that works with a standard USB cable (included). Small form factor. USB Port Powered.


  • BB-TTL3USB9M


    Universal Serial Bus (USB) has become the connectivity workhorse of today’s PCs, replacing the familiar serial ports. However, many commercial and industrial devices still use the TTL interface. To connect these devices to modern PCs, you need a simple and reliable conversion solution. Model TTL3USB9M, for 3.3V TTL, offers this solution in a space saving, USB port-powered package. Simply install the drivers supplied on CD ROM and plug the converter into an available USB port on your computer or USB hub. The device will show up as an additional COM port in the Windows Device Manager which is fully compatible with your Windows applications. A one meter USB cable is included.


  • BB-UC232A


    Model BB-UC232A, USB to Serial RS-232 Adapter, provides one RS-232 serial (DB9 male) connector via one standard USB port at a data transfer rate of up to 230Kbps. Instantly attain connectivity with modem, PDA, POS or other serial devices on your PC or Mac without the hassle of opening your computer case. This quick, simple and cost-effective solution is ideal for various communication and automation applications. The USB interface is transparent to serial peripherals, allowing them to easily interface with USB computers and eliminate the set-up hassle typical with traditional serial port connections. The device supports energy saving suspend and resume operations. No IRQ required.


  • BB-USO9ML2-2P


    Two RS-232 serial ports. Easy to set up with DB9 M RS-232 Connector and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. 10-30 VDC power input.


  • BB-USO9ML2-4P


    Four RS-232 serial ports. Easy to set up with DB9 M RS-232 Connector and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. 10-30 VDC power input.


  • BB-USO9ML2-A


    Supports serial RS-232. Easy to set up with a DB9 M on the RS-232 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. USB Port Powered.


  • BB-USO9ML2-LS-A


    Supports serial RS-232. Easy to set up with a DB9 M on the RS-232 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. USB Port Powered.


  • BB-USO9ML4


    Supports 2-wire RS-485 or 4-wire RS-422/485, long range and multi-drop communication. Easy to set up with DB9 Male and a high retention USB connector that works with a standard USB cable, which is included. LEDs indicate transmit and receive. USB Port Powered.


  • BB-USOPTL4


    Supports 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate Transmit and Receive. USB Port Powered.


  • BB-USOPTL4-2P


    Two serial ports, 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal blocks on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. 10-30 VDC Power input.


  • BB-USOPTL4-4P


    Four serial ports, 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal blocks on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. 10-30 VDC power input.


  • BB-USOPTL4DR-2


    Two serial ports, 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal blocks on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. USB Port Powered.


  • BB-USOPTL4-LS


    Supports 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. USB Port Powered.


  • BB-USPTL4


    Supports 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. USB Port Powered.


  • BB-USPTL4-LS


    Supports 2-wire RS-485 or 4-wire RS-422/485. Long range, multi-drop communications. Easy to set up with plug in terminal block on RS-422/485 side and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. USB Port Powered.


  • BB-USR604


    Four RS-232/422/485 serial ports. UL C1 D2 Rated. Easy to set up with DB9 M serial connectors and a high retention USB connector that works with a standard USB cable (included). LEDs indicate transmit and receive. 10-30 VDC inputs are a terminal block with a redundant jack.


  • USB-4604B


    USB-4604 series allows PC users to connect a serial device to a system that use a USB interface. To attach the USB-4604B/4604BM to a PC, you don’t need to open the chassis or power down your PC. Instantly get extra high-speed RS-232/422/485 ports. The power is derived from the USB port, so there are no power adapters to deal with. This makes the USB-4604B/4604BM especially suitable for modems, printers, POS systems and industrial control devices. Supporting USB2.0 high speed, USB-4604B/4604BM features several powerful functions such as high-speed 921.6 kbps transmission, support for various operating systems, independent RS-232/422/485 ports and more. By simply plugging in a USB hub, USB-4604B and USB-4604BM eliminates the configuration issues associated with high-priced, older card solutions. You only have to install the drivers, no need to set cards slots, IRQ addresses, DMA channels, or device addresses. This reduces programming effort


  • USB-4604BM


    USB-4604 series allows PC users to connect a serial device to a system that use a USB interface. To attach the USB-4604B/4604BM to a PC, you don’t need to open the chassis or power down your PC. Instantly get extra high-speed RS-232/422/485 ports. The power is derived from the USB port, so there are no power adapters to deal with. This makes the USB-4604B/4604BM especially suitable for modems, printers, POS systems and industrial control devices. Supporting USB2.0 high speed, USB-4604B/4604BM features several powerful functions such as high-speed 921.6 kbps transmission, support for various operating systems, independent RS-232/422/485 ports and more. By simply plugging in a USB hub, USB-4604B and USB-4604BM eliminates the configuration issues associated with high-priced, older card solutions. You only have to install the drivers, no need to set cards slots, IRQ addresses, DMA channels, or device addresses. This reduces programming effort


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