ST to ST Multimode Duplex Metal Fiber Optic Adapter

ST to ST multimode duplex fiber optic adapter with metal housing. Durable bayonet coupler for LAN and industrial fiber networks.

SKU STSTSDM Category
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This ST to ST multimode duplex fiber optic adapter is designed for stable and low-loss optical connection between ST connectors in multimode fiber networks. It ensures precise alignment and reliable signal transmission, making it suitable for short-reach communication systems such as LAN, industrial networks, and legacy fiber infrastructures.

Built with a durable metal housing and precision alignment sleeves, this adapter provides strong mechanical protection and long-term stability in demanding environments. The ST bayonet-style interface ensures secure locking and easy installation, while the duplex configuration supports bidirectional fiber transmission in a compact and efficient form factor.
Adapter TypeST to ST
Fiber ModeMultimode
ChannelDuplex
Housing MaterialMetal
Alignment SleeveCeramic / Phosphor Bronze
Insertion Loss≤0.2 dB
Durability≥1000 mating cycles
Locking MechanismBayonet twist-lock
Operating Temperature-40°C to +80°C
  • ST to ST duplex adapter for multimode fiber systems
  • Durable metal housing for enhanced mechanical strength
  • Low insertion loss for stable optical performance
  • Precision alignment sleeves for accurate fiber coupling
  • Bayonet twist-lock design for secure connection
  • Supports repeated mating with consistent performance
  • Compact duplex design for structured cabling systems
  • RoHS compliant and industrial-grade construction
  • LAN and enterprise network systems
  • Industrial fiber optic communication networks
  • Data center short-reach interconnects
  • Optical distribution frames (ODF)
  • Legacy multimode fiber infrastructure

OEM and customization options are available, including connector type combinations, housing material, flange design, labeling, and packaging. Bulk production is supported for enterprise and telecom infrastructure projects.

  • What is an ST duplex adapter used for?
    It allows two fiber connections using ST connectors for bidirectional communication.
  • Why is metal housing used?
    Metal housing provides higher durability and better protection in industrial environments.
  • Is this adapter suitable for single-mode fiber?
    This version is designed for multimode fiber applications.
  • How does the alignment sleeve work?
    It precisely aligns fiber cores to reduce insertion loss and improve signal quality.
  • Where is this commonly used?
    It is commonly used in LAN, industrial networks, and legacy fiber systems.