Project Description

GoldRush® Fiber Optic Connectors

Physical Contact Connectors – Hermaphroditic Connectors

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Amphenol Fiber Systems International (AFSI) has designed the next generation “longwall communications” deployable fiber optic connector. By responding to specific customer needs and leveraging the family of AFSI TFOCA-II® connectors, the GoldRush® series of fiber optic connectors was born. These innovative interconnect solutions have become an enabling technology for “digital mining.” AFSI’s GoldRush® connectors address specific mining requirements for the future of intelligent mining.

The GoldRush® connectors are the only Mining Safety and Health Administration (MSHA) certified fiber optic connectors for use in underground mines under Title 30 CFR, Part 18.

The heart of the GoldRush® family of deployable fiber optic connectors is the TFOCA-II® termini, featuring “sealed” free floating termini. This revolutionary design enables GoldRush® connectors to seal against high humidity and moisture conditions while allowing full axial and orbital movement of the mated termini, providing the lowest possible insertion loss.

Features

  • Hermaphroditic design for versatility enables the GoldRush® plug to be daisy-chained or unreeled from either end of a reel
  • Brass construction eliminates thermite concerns. Also available in stainless steel (for corrosive environments) and aluminum
  • 4-channel connector design provides system flexibility
  • Optional key positions – four key positions (1, 2, 3 and universal) available, enabling segregation of mated plug/receptacles or plug/plug, through mechanical interface
  • Improved cable retention strength is designed to meet 400 lb pull strength while protecting fibers from stress
  • Solid core alignment sleeves are more robust than split alignment sleeves
  • Removable end cap allows for easy field repair and cleaning
  • Commercial ceramic ferrule technology – enables GoldRush® connectors to provision multimode and single mode interconnect with a variety of polishes including SPC and UPC
  • Field repairable using existing parts – additional connector components (other than termini) are not required to perform field repair

Applications

  • Mining
  • Oil, gas and geoscience industries
  • Industrial

Certifications

  • Mining, safety and health administration certification no. 18-NXA050001-0

Specifications

Description Measurement/Detail
Insertion loss (multimode) Typical – 0.30dB, maximum – 0.75dB
Insertion loss  (single mode) Typical – 0.40dB, maximum – 0.75dB
Back reflection (single mode-PC polish) Typical – -50dB, maximum – -40dB
Back reflection (single mode-UPC polish) Typical – -50dB, maximum – -40dB
Operating temperature -46° C to + 71° C
Storage temperature -52° C to + 85° C
Mud Five minute immersion, clean with water
Water pressure One meter for 24 hours
Ice crush/freezing water Immersed and frozen in water for seven hours
Humidity immersion TIA/EIA-455-5, 5 cycles
Vibration (operational) TIA/EIA-455-11
Shock EIA/TIA-455-14, Condition A
Cable seal flexing 100 cycles per TIA/EIA-455-1
Twist 1,000 cycles per EIA/TIA-455-36
Cable retention 400 lb minimum per EIA/TIA-455-6 (applies to plug only)
Impact EIA/TIA-455-2
Crush resistance 450 lb minimum per EIA/TIA-455-26
EMI shielding effectiveness (receptacle only) > 60dB