RS232/422/485 to Fiber Converter single mode ST connectors w/terminal block The TCF-142 series serial to fiber converter is equipped with a multiple interface circuit that can handle conversion between either RS-232 or RS-422/485 serial interfaces, and multi-mode or single-mode optical fiber. TCF-142 converters are used to extend serial transmission distance up to 2 km (TCF-142-M multi-mode fiber) or up to 20 km (TCF-142-S single-mode fiber). PDF Data Sheet For Dealer/Quantity Pricing Click Here Availability: Usually ships the same business day. TCF-142-S-STList price: $580.00Sale price: $497.64 - Optional Accessories - DK-35ADIN-Rail Mounting Kit (35 mm) with 4 screws Availability: Usually ships the same business day. DK-35A$4.00