ST/UPC 12-Core SM Pigtail | The Locked-In Connection

In environments where a secure, vibration-proof link is non-negotiable, the ST/UPC 12-core Single-Mode Fiber Pigtail delivers. Built around the robust, bayonet-style ST connector, this assembly guarantees a connection that won’t come loose. It’s the engineered solution for industrial networks, legacy backbones, and any setting demanding mechanical confidence alongside optical precision.

Description

The Locking Advantage

  • Positive Lock, Zero Doubt: The quick-twist, bayonet coupling mechanism provides an audible and tactile click, ensuring a secure mate that resists accidental disconnection from vibration, cable stress, or incidental contact.

  • Built for the Real World: With a durable ceramic ferrule and rugged housing, it withstands the demands of frequent reconfiguration in patch panels and the harsher conditions of factory floors or transportation networks.

  • Seamless Legacy Integration: Designed to plug directly into the vast installed base of ST-based infrastructure, making network upgrades, expansions, and repairs straightforward and cost-effective.

  • Performance You Can Trust: Featuring UPC polish for low insertion loss (< 0.3 dB), it ensures clean signal transmission for your critical single-mode applications, from data backbones to digital video.


Technical Specifications

Parameter Specification
Product Model ST/UPC-12core-SM
Fiber Type / Standard Single-Mode (SM), G.652.D
Connector Type ST/UPC (Bayonet Coupling)
Jacket Color Yellow (Standard for SM)
Operating Wavelength 1310 nm, 1490 nm, 1550 nm
Insertion Loss ≤ 0.3 dB
Return Loss ≥ 50 dB
Durability ≥ 500 mating cycles
Ferrule Material / Diameter Ceramic, Ø2.5 mm
Cable Jacket LSZH (Low Smoke Zero Halogen)
Operating Temperature -20°C to +75°C

Expert Q&A

Q: The market has moved to smaller connectors. Why still specify ST?
A: While LC dominates high-density data centers, the ST connector remains the de facto standard for ruggedness. Its locking mechanism is superior in environments with vibration (industrial, rail, utility) or where a positive, pull-resistant connection is critical for network integrity and safety. It’s a choice driven by mechanical requirements, not density.

Q: How does the ST’s durability compare to an SC connector?
A: The ST’s bayonet lock is inherently more resistant to accidental unplugging than the SC’s push-pull latch, especially under constant cable strain or vibration. The metal coupling nut on many ST connectors also offers greater physical resilience over thousands of mate/de-mate cycles compared to plastic SC housings.

Q: What’s the key to a proper ST installation?
A: Engage and twist until it clicks. Ensure the connector’s key is aligned with the adapter slot before applying rotational force to lock it. A proper installation results in a secure, wobble-free connection. Never force it if misaligned, as this can damage the ferrule end-face.

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