- Description
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Details
USB to RS-232/422/485 Adapter
The USB to serial interface adapter offers an easy way to connect a DB9 serial device to a USB port. All configuration and electrical interface selections are handled through the driver, eliminating the need to open the enclosure to set jumpers or switches.
The serial port is software configurable for RS-232, RS-422, and RS-485 with the electrical interface settings maintained locally, allowing the host computer to be repaired or upgraded without reconfiguring the serial port.
Features and Specifications
- Full compliance with the USB Specification 2.0 & 1.1
- RS-232 / RS-422 / RS-485 (Echo mode / Bias resister / Terminal resister) set up by Windows application program
- Bus powered, no external power required
- Support 32 Node on the network
- High data rate up to 230 kbps (RS-232) ~ 3 M Baud (RS-422 or RS-485)
- ±15kV HBM ESD Protected
- DB-9 Male Pin Assignment
- RS-232 RS-422 RS-485
- Chip FTDI 1 DCD TX- D-
- Data Rate RS-232 230 Kbps 2 RXD TX+ D+
- RS-422 / RS-485 3 M Baud 3 TXD RX+
- LED 3 4 DTR RX-
- Connector Host USB Type A Male 5 GND GND GND
- Device DB-9 Male 6 DSR RTS-
- Compliant USB Spec. 2.0 / 1.1 7 RTS RTS+
- Housing Plastic 8 CTS CTS+
- Dimension ( L x W x H ) 66 x 39 x 20 mm 9 RI CTS-
OS Support
- Windows Windows 7, 8, & 10
- Linux and Mac OS 10.X
- Additional Information
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Additional Information
SKU CM-RSDB9-PRO UPC 736983900289 Color Black OS Compatibility Linux, OSX 10, Windows 10, Windows 8, Windows 7, Windows Vista Country of Origin China PCN Notice URL N/A Length (ft) No Downstream Port Count No Downstream Port Type No Serial Modes No Chip Model No - Reviews
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Customer Reviews 4 item(s)
- Nice product
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Works great. Driver is automately installed in Windows 10. The product can configured using the RS-232_422_485-AP in the shipped CD. When this converter is pulled on the computer, the Com Port No. can be detected by RS-232_422_485-AP. No need to check it in the Windows Device Manager.Only one comment on the Manual. Refer to the attached screenshot. It says "Click Prog EEPROM" in this step. Actuallly, there is no 'Prog EEPROM' button. Instead, you need to click "START" button to program the EEPROM of this converter. After then, you can verify the status by clicking the "Read Status" button. If it returns the protocal you wanted, you can close this RS-232_422_485-AP and do you work.Hardware: it would be perfect if the joint of the case were smaller.
Quality Value Price - Prompt service
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Replacement and refund handled promptly and cheerfully.
Quality Value Price - Review for Pro Grade FTDI USB to RS-232
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I liked this USB to Serial Adapter because it was easy to work with and move out of the way if needed. For its size, it really had almost no weight to it and the physical size was smaller in comparison to a wireless mouse you would use with your computer and obviously thinner. The LED’s were visually bright and noticeable.
I would certainly recommend using this adapter particularly when you are using it for a serial application that requires not only RS232 specifications but RS422 or RS485 signals as well. - Review for the Pro Grade FTDI USB to RS-232 / RS-422 / RS-485 Adapter Selectable via Software item #CM-RSDB9-PRO
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I chose this adapter because it seemed like it fulfill the need I had for a serial adapter that I could run from a USB port on my laptop.First Visual Observations:At first you might think this serial adapter was a toy, it’s not. The components are held within a tough, black, hard plastic casing with screw-locks to secure the cable connection between the male to female RS-232 DB-9 connectors, or whatever method is being used for the serial application.Packaging and Contents:+ USB 2.0 to Serial adapter+ USB Cable+ Disk with drivers and manualAll contents were shipped in a small box with the adapter itself wrapped in an anti-static bag; the cable was in a separate sealed package with the driver disk below them.Setup and Operation:I had received this small and light weight USB 2.0 to Serial Adapter and put it right to work with an older Cisco 2621 Modular Access Router I was using for terminal work.As I have said this handy little adapter isn’t a toy. I am running Windows Vista Ultimate which initially doesn’t support terminal applications, that feature was unfortunately removed from Windows. To use the adapter for my application I had to download a terminal emulation program called Putty.This was an easy process for me to get going once the terminal emulation software and driver for the adapter was installed. I was able to configure which COM port I wanted to use, in my case I chose COM 6 as my communication port.+ 1. Use the provided USB cable and connected it to the serial adapter.+ 2. Allow the installation of the driver for the device, in my case I had to used the provided driver disk +3. Check for the new installation in your device manager, your new serial adapter will be listed under the COM port section in the device list. You can chose your COM port via your software.+ 4. Connect your terminal to the serial adapter.When using the serial adapter I noticed it has a series of LED indicators on its side, these included Power, TxD, and RxD, all functioned properly, the power LED activated once the USB cable was plugged in and the serial adapter connected to it. The TxD LED activated once the connection was made to the Cisco Router. The signal once connected as far as I could tell was nearly instant; I saw very little if any delay between the terminal window and the device output.My Summation & Recommendation:I found no cons in using this device even in a system that had chosen to remove the application I wanted to use it with.I liked this USB to Serial Adapter because it was easy to work with and move out of the way if needed. For its size, it really had almost no weight to it and the physical size was smaller in comparison to a wireless mouse you would use with your computer and obviously thinner. The LED’s were visually bright and noticeable.I would certainly recommend using this adapter if you need to add a serial port to your PC or Laptop, particularly when you are using it for a serial application that requires not only RS232 specifications but RS422 or RS485 signals as well. The USB to Serial Adapter is self-powered via the USB port.Special note:This device was purchased/received from Amazon through the manufacturer’s Amazon store. The observations, usage, and opinions are of my own design and not solicited in any way.
Quality Value Price
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