High-Reliability USB to Serial Supports Medical Test & Research


Biomedical Device Consultants and Laboratories (BDC Laboratories) is an industry-leader in the design and manufacturing of cardiovascular medical test equipment. They specialize in testing services, silicone vessels and test equipment for medical device manufacturers. BDC Laboratories offers custom-designed hardware and silicone vessels to simulate blood flow and their in-house capabilities include heart valve, heart catheter and blood vessel graft testing.

In early 2021, BDC Laboratories released the RWT-4600i Heart Valve Real-Time Wear System. The RWT-4600i tests the overall durability and longevity of artificial heart valves. As part of this system, they required high-reliability USB to serial interfaces.

The Sealevel Solution

BDC Laboratories shared their specific connectivity needs with the Sealevel team and we ultimately recommended two of our SeaLINK® USB to serial adapters. The 2107 and 2105R are now used in conjunction with the RWT-4600i to interface with multiple motor controllers.

The SeaLINK 2107 provides a single port USB to RS-485 asynchronous serial port and versatile interface for common RS-485 applications. A removable terminal block adapter simplifies field wiring and thumbscrews prevent accidental disconnection.

The SeaLINK 2105R is compatible with all standard PC baud rates and supports high-speed RS-232 communications up to 921.6Kbps. As with all SeaLINK devices, Sealevel’s SeaCOM USB software drivers and utilities make installation and operation easy.


USB to 1-Port RS-485 DB9 Serial Interface Adapter
SeaLINK 2107 USB to RS-485 DB9 Serial Interface Adapter

  • USB to RS-485 asynchronous serial port adapter
  • High-speed UART with 128-byte Tx FIFO and 384-byte Rx FIFO
  • Rugged, military-grade enclosure



USB to RS-232 DB9 Serial Adapter CableSeaLINK 2105R USB to RS-232 DB9 Serial Interface Adapter

  • Programmable baud rate and data formats with 128-byte transmit and 384-byte receive buffers
  • Powered by the USB port and status LEDs indicate activity and connection
  • Ruggedized, overmolded enclosure

Connect, Control and Monitor

Sealevel's industrial computers, USB to serial interfaces, and IoT hardware and software solutions enable continual connectivity and control. Real-time monitoring and response coupled with access to data for review ensure optimal operations and continued growth... in the right direction.