Privacy and Cookie Information:
This website uses cookies for tracking visitor behavior, for linking to social media icons and displaying videos. More information on how we deal with your privacy, please check our Privacy & Cookies statement.
Please remember that if you do choose to disable cookies, you may find that certain sections of our website do not work properly.

MyAdvantech Registration

MyAdvantech is a personalized portal for Advantech customers. By becoming an Advantech member, you can receive latest product news, webinar invitations and special eStore offers.

Sign up today to get 24/7 quick access to your account information.

Isolated In-line Serial Converter – DB9F/Terminal Blocks

  • RS-232 to RS-422 or RS-485 (2 or 4 wire) serial conversion
  • 2,000V, two-way optical isolation
  • Data rate: 115.2 kbps
  • Quick, inline installation
  • Removable terminal blocks for RS-422/485
  • Automatic Send Data Control - no software drivers necessary
  • 10 to 48 VDC external power required (not included, sold separately)
Model 4WSD9OTB converts RS-232 to RS-422 or RS-485 (2 or 4-wire). 2,000 Volts two-way optical isolation protects devices from power surges, spikes and ground loops in harsh electrical environments. This in-line converter supports distances up to 1,200 m (4000 ft.) and data rates up to 115.2 kbps. Switchable modes support 2-wire RS-485, 4-wire RS-485, and full-duplex RS-422. DB9 female RS-232 input. Removable terminal blocks for RS-422/485 and external power make wiring easy. Accepts external power from 10-48 VDC from an industrial power source or plug in power supply (not included, sold separately).

Need more info? Talk to our Online Rep!

Related Materials

Contact Advantech

Automation (Toll-Free)


Embedded (Toll-Free)


Contact Advantech