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USB-i485 RS485 to USB Converter

USB-i485 RS485 to USB Converter

Quick Overview

The USB-i485 module is a cost-effective way to convert RS485 or RS422 industrial buses to a USB interface. When connected to a PC USB port the USB-i485 module is automatically detected and is installed as a native COM port which is compatible with any existing serial communication application. Muliple modules can be installed when using USB hubs thus allowing a hassle-free configuration of a multi serial system without any IRQ or DMA configuration. 1500 vDC isolation between the USB port and RS485/RS422 protects the PC from spikes or possible misconnections in the communication bus.
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Details

Description

The USB-i485 module is a cost-effective way to add an industrial RS485 or RS422 serial port to your PC using a standard USB port. When connected to a PC USB port the USB-i485 module is automatically detected and installed as a native COM port compatible with ANY existing serial communication application. The USB-i485 converter can be configured for four-wire (full duplex) RS422 and RS485 or two-wire (half duplex) networks. When operating in two-wire RS485 the data transfer control is handled automatically (autogating) by the converter.

Two independent and isolated RS485 networks can be supported by one USB-i485 module thus doubling the number of remote devices that can be connected. Multiple modules can also be installed when using powered USB hubs, thus allowing a hassle-free configuration of a multi serial system without any IRQ or DMA configuration. 1500vDC isolation between the USB port and RS485/RS422 protects the PC from spikes and other possible transient voltages on the communication bus.

Software and USB connection lead included.

Specifications

  • Computer interface: USB V1.1 plug and play
  • Operating system virtual serial port driver
  • Supports Windows 98/ME/XP/2000/CE, MAC & Linux 2.4.20 or higher
  • Field interfaces: RS485 half duplex (dual buses), RS485 full duplex or RS422
  • RS485/RS422 selected on terminals
  • Automatic flow control (autogating) for RS485 half duplex
  • 120 Ohms internal resistor termination available
  • Transmission rate: from 300 bps to 1Mbps
  • Maximum RS485/RS422 cable length : 1200m
  • Maximum number of devices on the RS485 network:
    • Half duplex: 2 x 32 devices
    • Full duplex: 32 devices
  • Data Transmit and Receive LED indicators
  • Powered by the USB port
  • Consumption: <100mA
  • Isolation: 1500 Vdc from USB interface and the RS485/RS422 interface
  • RS485/422 bus protection: ±60vDC, 15 kV ESD
  • USB connection: mini-B connector
  • A suitable 1.5 m USB cable (type mini-B to A) is supplied with the module
  • RS485/422 connector: plug in screw terminal type accepting 1.5 mm² (16 AWG) wires
  • ABS enclosure: 70 x 60 x 18 mm
  • Operating environment: 0 to 70°C, 10 to 90% relative humidity, non-condensing

Availability: Stock Item

 

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

REF DESCRIPTION DOWNLOADS PRICE ORDER ITEM
8816001035
8816001035
USB-i485 USB Converter to dual RS485 Isolated ports
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£70.97
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