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USB to Quad RS-422/485 Adapter with Optical Isolation & Surge Protection

Special Price $278.98

Regular Price: $399.98

Quick Overview

USB to Quad RS-422/485 Adapter with Optical Isolation & Surge Protection

Availability: In stock



Manufacturer: SerialGear


USB-4COMi-SI-M USB to Quad RS-422/485 Adapter includes Optical Isolation & Surge Protection and is installed as a standard COM port. The adapter is designed with a four external 4-pin dip switches to set RS-422 or RS-485 mode conveniently, without the need to open the metal chassis. Each port can be independently set to RS-422 or to RS-485, depending on your application requirements. The adapter is self-powered, and one power supply adapter of 6V/2.1 Amp is included.

Easy plug-and-play features and hot plug compatibility lend to the adapter’s automatic detection when installed. The USB cable is Included with the USB-4COMi-SI-M Serial Adapter and is designed to make serial port expansion quick and simple. Utilization of an available USB port or USB hub expands the USB Serial Adapter instantly to add four RS-422, or RS-485 serial communication ports to your system.

The RS-422/485 adapter is equipped with a DIN rail bracket for industrial environment mounting with Termination and biasing options available for data transmission lines. The optical isolation protects your PC from spikes and surges on the RS-422/485 network, by converting the electrical pulse into an optical signal and then changing it back into an electrical pulse. The surges and spikes cannot cross the optical link.

USB to Quad RS-422/485 Adapter Features

  • Optical isolation and surge protection
  • RS-422/485 port is optically isolated with 2000 volt DC optical isolation
  • Built-in surge protector to withstand electrostatic discharge and power surges up to 25KV ESD
  • Instant connectivity to RS-422 or RS-485 communication devices for POS, factory automation equipment
  • Multi-drop data collection devices, bar code readers, time clocks, scales, data entry terminals, PC to PC
  • Long distance communications, ATMs and serial data communication in harsh environments
  • Provides industrial solution requiring single node or multi-drop communications over short and long distance
  • Full modem control signals & data signals supported
  • Serial port speed up to 230,400 bps or 921,600 bps depending on the model
  • 384 byte receive / 128 byte transmit buffering

Additional Information

Manufacturer SerialGear