Serial to Fiber Optic Converter

Serial to fiber

Serial to Single-mode Fiber Optic Converters

Serial to Single-mode Fiber Optic Converters

Advantech ILinx™ fiber converters are designed with the functionality required for heavier industrial environments. These isolated converters change RS-232, RS-422 or RS-485 to single-mode fiber optics. Fiber optic connectors are SC or ST.BB-FOSTCDRi-Sx models extend serial data ranges up to 15 km (9 mi) and provide the most versatile connection possible between asynchronous full or half-duplex serial equipment.

In addition to direct point-to-point connectivity it is capable of operating in multi-drop mode. This allows one serial device to communicate with up to 31 others around a fiber optic ring.

Since it supports mixed serial standards, it can replace other converters and isolators and add the EMI/RFI immunity inherent to fiber optic communications.

The Automatic Send Data Control circuit controls the RS-422/485 driver chip, eliminating the need for special software. Easy to install and configure, it has a 12-position DIP switch to set up RS-422/485 parameters and removable terminal blocks to connect serial signals and power. In RS-232 mode, it supports Transmit Data and Receive Data. Handshaking signals are not passed through


  • Converts serial data signals to single-mode fiber, up to 15 km (9 mi) range
  • 2000V 3-way optical isolation (input, output, power); EMI/RFI protection
  • Data rates up to 115.2 kbps
  • Wide operating temperature: -40 to +80 °C
  • DIN mount, IP30 plastic case
  • UL 508 rated
  • 10–48 VDC external power source required (not included, sold separately)
  • Modbus ASCII/RTU compatible