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101-0019
USB to 2-Wire RS-485 Converter
Galvanically Isolated,
DIN Rail Mounted
Installation
Operation &
Specifications
Manual
General Description
The 101-0019 USB to RS-485 converter provides a simple, interface between
a PC or laptop computer with a USB port and 2-wire RS-485 devices. Virtual
serial port Universal Serial Bus (USB) drivers make this converter compatible
with most software developed for RS-232 communications serial port interfaces
because it appears as an RS-232 port to your software. Switching between
receive and transmit is automatically controlled, so RTS (Request To Send)
is not needed - maximizing software compatibility. Power for the converter is
taken from the USB port eliminating the need for an external converter power
supply. It includes high ESD protection (±15kV HBM) on transceiver, high com-
mon mode transient immunity (30kV/μs), plus 2500V
transformer isolation
RMS
between the line transceiver and USB logic. Ideal for systems where the ground
loop may be broken allowing for large common mode voltage variation.
DIN rail mounting allows the converter to be quickly installed in your equip-
ment rack, along with other DIN mounted equiment.
620-0019 R1 © Microfl ex 2016
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Summary of Contents for Microflex 101-0019
- Page 1 Specifications Manual General Description The 101-0019 USB to RS-485 converter provides a simple, interface between a PC or laptop computer with a USB port and 2-wire RS-485 devices. Virtual serial port Universal Serial Bus (USB) drivers make this converter compatible with most software developed for RS-232 communications serial port interfaces because it appears as an RS-232 port to your software.
- Page 2 Driver Pre-Installation If you are using Windows 10, 8, 7, Vista, XP, or 2000 - the USB drivers can be installed before the RS-485 converter is connected to the PC’s USB port. After the drivers are installed, Windows will automatically detect the converter when it is connected to a USB port and complete the setup.
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Page 3: Uninstalling The Usb Driver
Driver - Manually Installed To manually install the driver... Connect the Converter to the USB port. Open the Windows Device Manager. The new device wizard will have added the converter under Ports (COM & and will appear as . Right click the LPT) USB RS485 Serial Converter (COMx) device and select... -
Page 4: Changing The Com Port Number
Changing the COM Port Number The assigned serial COM port number can be changed to any available COM port by using the Device Manager. Open the Device Manager and select . Expand in the list to see which port View > Devices by Type Ports (COM &... -
Page 5: Software Setup
Software Setup Make sure your software is set to use the same serial COM port that the RS- 485 converter was assigned. Refer to Finding the Assigned COM Port Number and Changing the COM Port Number in this manual for details. There are no hardware settings required by the RS-485 Converter and power is provided by the USB port. -
Page 6: Safety Considerations
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by Microflex, LLC could void the user’s authority to operate this equipment. Emissions EN55022: 1998... -
Page 7: Specifications
Specifications Enclosure Polycarbonate plastic and Stainless Steel Cover Weight ....................5 ounces Connector ....................USB-B Compatibility ............USB 1.1, USB 2.0, USB 3 Active Current .................. 35mA Max Suspend Current ............Less than 600μA Typical RS-485 Termination ......... Plugable Screw Terminals, 26-12 AWG G = Isolated ground, A = Non-inverting, B = Inverting BUAD Rates ... -
Page 8: Limited Warranty
RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF MICROFLEX SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. MICROFLEX, LLC WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITIES THEREOF.
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