Connection Clearance Center. Shop Now!
Connected: Bridge The Digital Divide

Subscribe to Our Emails


          Black Box Universal RS-232 to RS-422 485 Bidirectional Converter

          Black Box Universal RS-232 to RS-422 485 Bidirectional Converter
          More From: Black Box
          Item #: 14042640
          Mfr. Part#: IC820A
          Availability: Partial Quantity Available
          Est. Ship: Call for next available delivery

            Ordering Information

            Black Box is a leading worldwide provider of infrastructure services, communications equipment, and technical support. The company's success is firmly rooted in the original vision: to create a "central, reliable source for hard-to-find products and technical skill". Black Box is unique, distinguished by its superior technical and customer services. With plans to continue expanding its services, Black Box is poised for excellence well into the future.


            Selectable RS-422 operation with transmit and receive always enabled;

            Set operating mode with four switches;

            Automatic RS-485 driver control, so it works without any special programming for handshaking signals. Also enables transmitter from RS-232 TD signal and receiver when not transmitting;

            Built-in bridging switches for 2- or 4-wire operation with no external jumpers to set;

            Converts using either port power or power from an external 12-VDC power supply (not included). No external power is required if two RS-232 output handshake lines are available.
            Collapse & Return to Top
            Connectivity Technology Wired
            Returns Policy This product is subject to our return policy. Please see our complete return policy for details.
            UNSPSC 43201552
            Warranty - Labor 5 Years
            Warranty - Parts 5 Years
            Collapse & Return to Top

            Our Accessibility Policy

            We endeavor to make our website accessible to any and all users. Please contact us toll-free at 800-998-4388 if you need assistance with navigating our blog, website, or placing an order. We appreciate your business and are happy to answer any questions that you may have.