Installation
Operation &
Specifications
Manual
USB to 2-Wire RS-485 Converter
Galvanically Isolated,
DIN Rail Mounted
620-0019 R1 © Microfl ex 2016
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
RMS
transformer isolation
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.
101-0019
