USB to RS485 Compact PRO


Model: US485COM
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This is a compact version of the USB to RS485 converter. I has the converter circuitry built directly into the USB housing which makes it ideal for applications with limited space or if you like to have just the communication wires available without the converter part.

The processor chip is a FT232BL from FTDI so the reliability and performance of this converter is guaranteed with all newer operating systems. The USB housing which encloses the converter circuitry is made of half-transparent black plastic which makes it a strong and durable converter. Indication LED lights for power, TX, RX, COM status and 5V limit makes it easy to see when data is present and is an advantage when troubleshooting.
Power to the converter is drawn from the USB port so no external power supply is required.

The serial side of this USB to RS485 converter is terminated in a terminal header with 3 terminals, one each for TX, RX and GND. There is also an optional 5V power wire which can be used to power your serial device.

This USB to RS485 converter has built-in electrostatic protecting which provides effective protection against common static electricity and other high-voltage spikes however if you need protection against high voltage surges and ground loops or need a converter for industrial use we recommend an optical isolated USB to RS485 converter.

Overall features
  • USB port-powered
  • Compact rugged design
  • Compatible with most operating systems
  • Interface: Terminal header + stripped wires
  • Indication LED lights
  • 5VDC out

Model number US485COM
Recommended operating system
  • Windows 10 32/64, Windows 8 32/64, Windows 7 32/64, Vista 32/64, XP 32/64, Server 2003/8R2 32/64, 2000, ME, 98Se
  • Linux
  • Mac OS 8, OS 9, OS X
  • Windows CE.NET (Version 4.2 and greater)
  • Android
Processor FT232BL
Serial driver SP485
Baud rate 300-1Mbps, auto detection
Power Port powered from USB port
RS485 interface Stripped wires + detatchable screw terminal header
USB interface Male type A
Cable length 5 feet
Parity None, Odd, Even, Mark, Space
Data bits 7, 8
Stop Bits 1, 2
Indication LEDs TX, RX, Power, COM port and 5V current limit
Buffer size 128/385 Bytes
Serial signals RS485: D-, D+ GND (half duplex)
USB signals VCC, DATA+, DATA-, GND, FG
Flow control Automatic. No IRQ Conflicts, no IRQs, IO or DMA required
Current draw
Static less than 80mA, dynamic average consumption less than 150mA
ESD electrostatic protection 15KV / 600W/ms
Operating humidity 5% To 95% - No Condensation
Operating Temp. -40 to 85C
Dimensions 50 x 8 x 18mm (USB part only)
Certifications CE, FCC, RoHS
Warranty 1-year Limited Warranty
ECCN 4A994.a
Schedule B 8471.80.1000
HTS 8517.18.0050
Useful accessories
serial accessories

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