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Industrial USB-RS485 Converter Guide

U-485 is a USB to RS485 converter that allows communication from USB to RS485. It is powered by the USB port and supports half duplex 2-wire communication modes at transmission distances up to 3km at 4800bps. The manual provides instructions on connecting the converter via various wiring configurations, installing the device driver software on Windows and Linux systems, and lists technical specifications including supported baud rates, data formats, and operating temperature range.

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Michel Faria
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2K views1 page

Industrial USB-RS485 Converter Guide

U-485 is a USB to RS485 converter that allows communication from USB to RS485. It is powered by the USB port and supports half duplex 2-wire communication modes at transmission distances up to 3km at 4800bps. The manual provides instructions on connecting the converter via various wiring configurations, installing the device driver software on Windows and Linux systems, and lists technical specifications including supported baud rates, data formats, and operating temperature range.

Uploaded by

Michel Faria
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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The manual of U-485 3.

Connectors 3) The wiring among U-485


USB-RS485 converter for industry Rs485 Output Signal RS485 signal
1 D- B- (TX-)
1. General 2 D+ A+ (TX+)
U-485 is USB to RS485 converter to realize 3 GND Shield
communication from USB to RS485. It is powered by Note: When the converter is wired by half duplex
USB port without external power. mode, to avoid signal reflex and signal interference,
It has the zero-delay automatic sending and we usually need connect a 120Ωterminal resistance.
receiving technique and baud rate adaptive technique.
It can be plug-and-play suitable for all software; It has 4. Wiring 5. Installation
a transceiver enable control; It supports the 1) Point to Point (2 wires half duplex); 1) Insert the USB port of converter to computer, then
communication among multi points. There is a built-in computer asks to install device driver.
anti-static circuit in it. 2) Insert min CD with converter to computer, run
. directly driver software \Driver\CH341SER.EXE.
2. Technical feature Then we will see the software as below.
1) PC system: Win98/2K/XP; MAC OS-9/X; Linux
2.40 and above.
2) Power supply: USB port powered, the current 2) Point to Multi points (2 wires half duplex).
<50mA.
3) Working mode: half duplex 2 wires.
4) Transmission media: twisted-pair cable or shielded
cable.
5) Communication distance: 3km (4800bps), 2km
(9600bps) and 1km (115.2Kbps).
6) Load capacity: 32 points on the same line.
7) Communication rate: 300BPS-115.2KBPS.
8) Data format: UART (data bits: 7-8; stop bit 1, 2; 3) Click “INSTALL” button, then wait for complete of
check-bit: odd / even / no parity. installation of driver.
10) The working temperature: -20 ~ 70C (Note: If you can not install driver in the way, you can
11) Dimensions: 800×30×15mm install driver with the driver file in \Driver\Driver_file\
oem14.inf)

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