Express Systems will have an EARLY CLOSING Friday, May 28th, 2021 and will be CLOSED Monday, May 31st, 2021 in observance of Memorial Day. We will resume regular business hours Tuesday, June 1st, 2021 at 9:00am.
The TCF-142 media converters are equipped with a multiple interface circuit that can handle RS-232 or RS-422/485 serial interfaces and multi-mode or single-mode fiber. TCF-142 converters are used to extend serial transmission up to 5 km (TCF-142-M with multi-mode fiber) or up to 40 km (TCF-142-S with single-mode fiber). The TCF-142 converters can be configured to convert either RS-232 signals, or RS-422/485 signals, but not both at the same time.