ST/UPC fiber optic pigtail with bayonet coupling mechanism
ST/UPC pigtail showing metal bayonet connector and bare fiber end
Fiber Optic Pigtail

ST/UPCFiber Optic Pigtail — Bayonet Mount, Single Mode & Multimode

ST/UPC fiber optic pigtail with bayonet twist-lock coupling mechanism for vibration-resistant splicing connections. Available in single mode 9/125μm and multimode 50/125μm or 62.5/125μm. 0.9mm tight buffer, factory polished. Designed for legacy network upgrades, industrial automation, and military fiber installations.

Connector TypeST/UPC
Fiber ModeSingle Mode, Multimode (OM1, OM2, OM3)
Insertion Loss≤0.2dB (SM), ≤0.3dB (MM)
Return Loss≥55dB
Operating Temperature-40°C to +85°C
Specifications

Technical Specifications

Connector Type
ST/UPC
Fiber Type
G.652D 9/125μm (SM), 50/125μm, 62.5/125μm (MM)
Fiber Mode
Single Mode, Multimode (OM1, OM2, OM3)
Cable Diameter
0.9mm tight buffer
Jacket Material
PVC, LSZH
Jacket Color
Yellow (SM), Orange (MM)
Length
1m, 1.5m, 2m, 3m (custom available)
Insertion Loss
≤0.2dB (SM), ≤0.3dB (MM)
Return Loss
≥55dB
Ferrule Diameter
2.5mm Zirconia Ceramic
Coupling Mechanism
Bayonet twist-lock (spring-loaded)
Operating Temperature
-40°C to +85°C
Standards
IEC 61754-2 · TIA-604-2 (FOCIS 2) · Telcordia GR-326
Key Features

Engineered For Performance

Bayonet Twist-Lock Coupling

Spring-loaded bayonet mechanism locks with a quarter-turn, providing vibration-resistant connections that stay secure in industrial equipment racks and field enclosures.

Rugged Metal Construction

Full-metal connector body and bayonet ring withstand mechanical stress, making ST pigtails the preferred choice for military, industrial, and harsh-environment fiber termination.

Single Mode & Multimode Support

Available in both single mode and multimode variants to support network upgrades, legacy 10BASE-FL/100BASE-FX installations, and new industrial deployments.

Wide Temperature Tolerance

Operating range of -40 to +85 degrees C ensures reliable splice performance in outdoor enclosures, factory floors, and temperature-extreme environments.

Typical Applications

01

Legacy Network Splicing

ST pigtails for splicing to existing 10BASE-FL and 100BASE-FX fiber infrastructure in buildings and campuses with established ST cabling plants.

02

Industrial Automation

Vibration-resistant fiber termination for SCADA, process control, and factory automation networks operating in high-vibration manufacturing environments.

03

Military & Defense Networks

Ruggedized ST pigtail splicing for shipboard, vehicular, and field-deployed tactical fiber communication systems requiring mechanical durability.

Interested in this ST/UPC Pigtail?

Tell us your quantity, cable length, and any custom requirements. Our engineering team will respond with a detailed quote within 24 hours.

TTI Fiber 12,000 sqm manufacturing facility in Shenzhen, China

Why TTI Fiber

Trusted Manufacturer Since 2013

TTI Fiber is a professional fiber optic manufacturer based in Shenzhen, China. We provide full OEM/ODM services with factory-direct pricing and dedicated engineering support.

12,000sqmManufacturing Base
15+yearsIndustry Experience
100+countriesProducts Exported
30+brandsGlobal Partners
ISO9001ISO14001CERoHSCPRREACH

Ready to discuss youroptical network project?

Tell us what you’re building — we’ll recommend the right fiber components and provide a fast, accurate quote.

Get Free Quote