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HMA-J Series connector

HMA-J Series connector

The OPTOKON HMA-J connector series, a medium size „Expanded Beam“ connector is designed for connection of the nodes of harsh environmental network by the help of cables with optical fibers. The used expanded beam technology preservers all advantages of signals transmission through the optical lines in field harsh environmental conditions. Additionally to ruggedized optical networks the HMA-J is suited for a vast array of applications, like heavy industry connections, petrochemical application, broadcasting temporary optical lines. The innovative designs ensure its ability for deployment in the toughest environments where high performance and total reliability are critical. Benefiting from expanded beam technology the precision optical alignment system creates immunity from water, mud, dust oil and other contaminants. The HMA-J Hermaphroditic coupling eliminates the need for adaptors and male and female mating halves. Hermaphroditic housings allow for rapid deployment, creating low loss Singlemode and Multimode daisy chained links in a variety of planforms ranging from simplex fiber to a four fibers. The OPTOKON HMA-J is ideally suited for environmental extremities where low maintenance and quick repairability is necessary.

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  • Advanced expanded beam technology
  • MIL-DTL-83526 specification
  • Hermaphroditic interconnection
  • 1 to 4 fiber channels Single mode or Multimode
  • Rugged field repairable connector design
  • Keyed boot for ‘Blind Mating’

Optical Loss

50/125 @ 850/1300 nm 0.7 dB typ., 9/125 @ 1310/1550 nm 1.0 dB typ.

Return Loss

9/125 @ 1310/1550 nm >32 dB


3000 matings minimum

Operating temperature

-55 to +85 °C

Storage temperature

-55 to +85 °C

Water immersion

2 m depth duration 24 Hours

Vibration Sinusoidal

10-500 Hz, 3 directions, 0.75 mm amplitude @ 10 G acceleration

Free fall resistance

500 falls from 1.2 m height

Bump resistance

4000 bumps @ 40 G acceleration

Tensile Strength

Tensile of 1500 N, cable dependent

Crush resistance

6.7 kN

Cable Variations

Compatible with tactical cable: Plug: 5.0-5.5 mm, Bulkhead: 2.8-5.5 mm o/d, Other cable sizes available on request

  • Broadcast
  • Harsh environmental communications
  • Industrial
  • Petrochemical

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