RS-232/422/485 to fiber slide-in modules for the NRack SystemThe TCF-142-RM series of serial-to-fiber converters are slide-in modules that work with the TRC-190 chassis. The modules convert from the RS-232, RS-422, or RS-485 signal to a fiber optic signal.Features:Extend RS-232/422/485 transmission up to:- 40 km with single mode;- 5 km with multi-mode.1K or 150K ohm adjustable pull high/low resistor.“Ring" and "Point-to-Point" transmission supported.