RS-423 Point-to-Point
Fiber Optic Links
Electrically Compatible With RS-232


These products convert an RS-423 electrical signal into light signals for transmission over fiber optic cable. They provide fully transparent operation with data, clock, and common control signals automatically multiplexed.


  • Data Rates to 100Kbps Source Timing
  • Data Rates to 128Kbps Terminal Timing
  • Distances to 20km
  • Choice of multimode or singlemode
  • Standalone or rack-mount

2 Formats are available.

MicroModem - compact size, self-contained.
(RS-423 is electrically compatible with RS-232)

FOM II (Fiber Optic Modem) - circuit card
with chassis/enclosure.

(RS-423 is electrically compatible with RS-232)


NEW - Now ALL VERSITRON RS-423 MicroModems and RS-423 F280xD FOM II Series Modems are compatible with each other. Get Details



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