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SP385A-R3: RS-232/V.24
Photo may vary from actual product
SP385A-R3: RS-232/V.24
SP385A-R3: RS-232/V.24
SP385A-R3: RS-232/V.24
SP390A-R3: RS-422/485
SP390A-R3: RS-422/485
SP390A-R3: RS-422/485
SP390A-R3: RS-422/485
SP390A-R3: RS-422/485
 

USB to RS232 Opto-Isolated Converter


Connect an RS-232 device to a USB port and gain isolation from voltage spikes and ground loops.


  • USB 1.0, USB 1.1, and USB 2.0 compatible (12 Mbps).
  • Holds connections tight with its high-retention USB connector.
  • Interface powered. No external power required.
  • LEDs indicate transmitting and receiving of data.
  • Great for linking older serial devices to computers or laptops with USB ports.
  • Also protects PCs and other connected devices from surges and spikes.
  • Provides 2000-volt RMS isolation against ground loops.
  • SP385A-R3 connects an RS-232 device to a PC's USB port.
  • SP385A-R3 Protect your computer and RS-232 devices from voltage spikes and ground loops.
  • SP390A-R3 allows 2-wire RS-485 or 4-wire RS-422/RS-485 operation.
  • SP390A-R3 is designed specifically for use in environments heavily susceptible to ground loops.
  • SP390A-R3: Get the range and multidrop capability of RS-422/-485 from your PC's USB port.
  • Warranty: 5 Year Double Diamond™ Warranty (Standard)
   
  Product       Code  
 
 
RS-232/V.24
  USB to RS232 Opto-Isolated Converter  
USB to RS232 Opto-Isolated Converter
  SP385A-R3  
 
RS-422/485
  USB to RS232 Opto-Isolated Converter  
USB to RS232 Opto-Isolated Converter
  SP390A-R3  

USB to RS-232 Opto-Isolator (SP385A-R3)
This compact opto-isolator enables you to attach an RS-232 device to a USB port and gain isolation from voltage spikes and ground loops. It doesn't require PCI or ISA slots, or IRQs. Using an optional USB Type A - Type B cable, simply plug the opto-isolator into the USB port and Windows will configure the device as an additional COM port.


USB to RS422/485 Converter with Opto-Isolation (SP390A-R3)
This compact device quickly converts USB port connections to RS-422/485 so you can connect legacy serial devices to a newer PC or laptop. Continue to use legacy commercial and industrial RS-422/485 devices without making any changes to the applications written for them.

Plus, because it features 2000-volt optical isolation, you can protect your PC and other equipment from dangerous spikes and surges on the RS-485/RS-422 network.

Simply plug it into your PC's USB port using the included USB cable (0.9m), then configure its DIP switches for 2- or 4-wire operation. The converter will show up as an additional COM port in your PC's Windows Device Manager. The serial terminal block can be removed for easy wiring.