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USB to RS-232 Optically Isolated Industrial Adapter with DIN-Rail

USB to RS-232 Optically Isolated Industrial Adapter with DIN-Rail

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Manufacturer: USBGEAR
Barcode: 729440690731
Part Number: USB-COM-SI-M
Warranty: ONE YEAR
In Stock: Yes
Ship Weight: 1 lbs.
Size: 3ft. Cable

Item Works with Windows ME Item Works with Windows 2000

Our Price: $64.78
Quantity Discount(s)
12 or more: $63.66
24 or more: $59.99
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User Reviews by
Product Rating: Product User Rating provided by ReviewGear

Pros: Easy installation, Works with Vista and Windows 7.

Product Description

USB-to-Serial Industrial Adapter RS-232 DB9 Optical isolation & surge protection USB to RS-232 Adapter

USB-COM-SI-M USB to Serial Adapter Optically and Surge Protected (For Industrial Applications) Metal case with DIN-Rail.

The USB-COM-SI-M USB Serial Adapter is designed for industrial applications to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB Serial Adapter instantly adds a RS-232 serial communication port to your system.

By taking advantage of the USB bus, the USB Serial Adapter makes it easier than ever to add serial ports and serial devices to your system with easy plug-and-play and hot plug features. Plugging the USB Serial Adapter to the USB port, the adapter is automatically detected and installed.

There are no IRQ & COM port conflicts, since the port dont require any additional IRQ, DMA, memory as resources on the system. The adapter is powered by the USB port, and no external power adapter is required.

The adapter is with DIN rail bracket for industrial environment. The USB Serial Adapter provides instant connectivity with modems, ISDN TAs, PDAs, handheld & pocket PCs, digital cameras, POS, serial printers. It is suitable for remote access, retail and industrial applications, data collection and other applications requiring high speed RS-232 serial communication port.


Feature & Specification Model No.: USB-COM-SI-M

  • Adds one RS-232 serial port by connecting to USB port Installed as standard Windows COM port Full RS-232 modem control signals
  • RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • 2000V DC optical isolation
  • 25KV ESD surge protection
  • Serial port speed up to 230K bps
  • USB cable of 0.9 meter included
  • Powered by USB port. No external power adapter required.
  • FIFO: 128 byte transmit buffer 384 byte receive buffer
  • Easy plug & play installation and RS-232 device connection
  • Works with USB 1.1 & 2.0 host port
  • One DB9 male connector
  • LEDs of Power, RxD, TxD for monitoring port status & easy diagnostics
  • SECC sheet metal chassis with DIN rail bracket
  • Dimensions: 57mm x 76mm x 23mm
  • 82mm x 76mm x 23mm (with DIN rail bracket)
  • COM Port Number can be changed to COM1 to COM4 to support HyperTerminal, or any other COM port number required
  • Supports Windows 10, 8, 7, Vista, XP, 2003, 2000, ME, 98.

Full Details PDF File User Guide




Important Technical Information:
  • Features & Specifications:
  • Easy plug-and-play installation
  • Installed as a standard COM port
  • Full modem control signals & data signals supported
  • Serial port speed up to 230,400 bps or 921,600 bps depending on the model.
  • 384 byte receive / 128 byte transmit buffering.
  • USB cable included
  • The USB-COM series items support Windows 98, ME, 2000, XP, Apple MAC OS8 or higher, Linux 2.4.0 and later, OpenBSD 2.9 and later & FreeBSD 4.7 and later. Drivers for the Windows operating systems are included on a CD-ROM disc. The latest versions of the Windows drivers as well as the drivers for Apple OS8/OS9/OSX, & Windows CE.NET (version 4.2 or greater) can be downloaded from
  • Linux, OpenBSD and FreeBSD support the adapters directly, so no driver is necessary.

  • USB to RS-232 Optically Isolated Industrial Adapter with DIN-Rail

    USB to RS-232 Optically Isolated Industrial Adapter with DIN-Rail - Image A