Black Box MD940A-F Async RS232 Extender Over Fiber - DB25 Female ST Multimode

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Black Box MD940A-F Async RS232 Extender Over Fiber - DB25 Female ST Multimode
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Only 2 left in stock - order soon! Inventory as of date 07/16/2026.
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Overview


Async RS232 Extender over Fiber - DB25 Female, ST Multimode

Extend Async RS232 data beyond the 50 ft limitation using multimode fiber at data rates up to 76.8 kbps and reach distances of 2.5 mi. (4 km).

Features

  • Autosensing 110-220-VAC power supply ensures reliability and continuous transmission.
  • A range select feature compensates for coupled power variations.
  • Switch-selectable DTE/DCE option. Set to perform like a DTE so it can communicate with another DCE device. No special cables are needed.
  • Support RS-232 async, bidirectional transmission.
  • Use with multimode fiber cable.
  • Transmit data at up to 76.8 kbps.
  • Reach distances of 2.5 miles (4 km) at any speed.

This product works with:

  • Multimode Distribution-Style, Fiber Optic Bulk Cable, Plenum, Custom Lengths, 12-Fiber (EXP3012A or EXP35012A)
  • Premium Ceramic, Multimode, 62.5-Micron Fiber Optic Patch Cables, ST-ST (EFN110 or EFP110)
  • Standard RS-232 Low-Noise Cable, 25-Conductor (ECM25T-0010).
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