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For worldwide shipping except to Americas.
Please visit https://us.connectiveperipherals.com/ for shipping to USA, Canada and Mexico only. For the rest of Americas, please send inquiries to sales@connectiveperipherals.com
For worldwide shipping except to Americas.
Please visit https://us.connectiveperipherals.com/ for shipping to USA, Canada and Mexico only. For the rest of Americas, please send inquiries to sales@connectiveperipherals.com

Frequently Asked Question (Wk3-Jul2025)

FAQ

Question : What is optical isolation and why is it important?

Answer :  Optical isolation is a technique used to electrically isolate different sections of a circuit while allowing data to be transmitted between them. It employs optocouplers which use light to transfer signals across an electrically non-conductive barrier. This isolation helps protect sensitive equipment from issues such as ground loops, voltage spikes, and electromagnetic interference (EMI). By preventing direct electrical connection, optical isolation protects communication lines from surges and harmful transients.

Question : How does ES-U-1101-MB differ from standard USB to RS232 adapter?

Answer : Functionally, the isolated adapter operates the same as a standard USB to RS232 adapter. However, the ES-U-1101-MB includes an optical isolation barrier between the USB (host) side and the RS232 (device) side. This design protects the host system—typically a computer—from electrical surges, spikes, and ground potential differences that may occur on the RS232 line, making it ideal for use in electrically noisy or industrial environments.

Question : What are the common applications for USB to RS232 Adapters with Optical Isolation (Full Speed)?

Answer: USB to RS232 adapters with optical isolation are commonly used in environments where electrical noise, ground loops, or transient voltages are a concern. Typical applications include:

  • Industrial automation and control systems
  • Medical equipment interfaces
  • Energy and utility monitoring systems
  • Laboratory instrumentation