3m (3ft) Fiber Patch Cable, 2 Fibers, ST UPC Duplex to ST UPC Duplex, Single Mode (OS2), Riser (OFNR), 2.0mm, Tight-Buffered, Yellow

ST/UPC-ST/UPC SM 9/125 G652D DX 3.0mm LSZH Yellow 3M

Fiber optical patch cord is It is used to make a jump wire from the device to the optical fiber wiring link. It has a thick protective layer, which is generally used in the connection between the optical end machine and the terminal box, and is applied in some fields such as optical fiber communication system, optical fiber access network, optical fiber data transmission and local area network.

Product Highlights
*G.657.A1 Bend Insensitive Fiber & 10mm Min. Bend Radius
*Precision Zirconia Ferrule Connectors Ensure Low Loss
*Riser (OFNR) Jacket for Vertical and Floor-to-floor Installations
*Color-Coded Cable Jacket for Easy Identification
*Zipcord Reinforced Fiber and Reduces Crimping Risk

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Fiber Patch Cable, ST UPC to ST UPC, Duplex, 2F, OS2, Riser (OFNR), 3.0mm

OS2 duplex ST to ST patch cord is engineered for carrier-grade telecommunications infrastructure. This ST to ST single mode patch cord features bayonet-style ST connectors, providing secure connections that withstand frequent handling. When you need reliable long-haul transmission, OS2 duplex ST to ST supports 1000BASE-LX and 10GBASE-LR standards.

This ST to ST single mode patch cord delivers consistent low-loss performance across extended distances. For backbone installations, OS2 duplex ST to ST ensures stable connectivity in central offices and field deployments. Choose this ST to ST single mode patch cord for telecommunications applications demanding rugged, field-proven reliability.

Find out more about fiber connector types in our guide.

Specifications

Product Name	Fiber Optical Patch Cord	Brand	Firstoptic
Connector A	ST UPC Duplex	Connector B	ST UPC Duplex
Fiber Count	2 Fibers	Fiber Grade	G.657.A1 (Compatible with G.652.D)
Fiber Mode	OS2 9/125μm	Wavelength	1310/1550nm
Polarity	A (Tx) to B (Rx)	Cable Type	Tight-Buffered
Cable Outside Diameter (OD)	3.0mm	Cable Jacket	Riser (OFNR)
Min. Bend Radius (Optical Fiber)	10mm	Min. Bend Radius (Fiber Cable)	10/5D (Dynamic/Static)
Connector Durability	1000 times	Tensile Strength (Long/Short Term)	90/150N
Insertion Loss	≤0.3dB	Return Loss	≥50dB
Attenuation at 850 nm	0.36dB/km	Attenuation at 1300 nm	0.22dB/km
Operating Temperature	-20 to 70°C (-4 to 158℉)	Storage Temperature	-40 to 80°C (-40 to 176℉)

The OS2 duplex ST to ST single-mode patch cord features a hybrid ST/STduplex interface, distinguished by the following core characteristics:

1. Secure Bayonet Coupling The ST connector's twist-lock design ensures quick, secure mating—ideal for applications requiring frequent reconfiguration. This makes the patch cord reliable in dynamic environments.

2. Reliable Field Operation Its quarter-turn mechanism allows rapid deployment while protecting ferrule integrity. This practical efficiency establishes it as a preferred choice for users in operational settings.

3. Low Insertion Loss Performance With precision ceramic ferrules and OS2 fiber, it ensures ≤0.3dB insertion loss and ≥40dB return loss—a stable foundation for single-mode connectivity in 10G/40G/100G links.

4. Clear Duplex Polarity Distinct channel labels prevent connection errors, ensuring optimal reliability in legacy and industrial networks.

1.Technical Standards & Compatibility

Compliant with legacy fiber optic standards including 10BASE-FL, 100BASE-FX, and 1000BASE-LX.
Supports industrial Ethernet protocols, campus networking, and surveillance system connectivity requirements.

2.Mission-Critical Application Scenarios

Campus & Enterprise Backbones: Direct connections between ST-port switches, media converters, and network equipment in educational institutions and corporate networks
Industrial & Security Systems: Deployed in factory automation, security surveillance, and building management networks where quick-connect ST interfaces facilitate maintenance
Medium-Distance Network Links: Serves as field-serviceable cabling for local backbone and distribution applications where bayonet-style connections support frequent reconfiguration

we offer high quality gigabit lc duplex single mode fiber that can provide customers with fast and reliable network transmission services.

Build a Stable and Robust Optical Fiber Network

High quality tightly buffered cables protect the fiber core and increase the strength and durability of the fiber.

Low insertion loss

high plug‑cycle durability; stable performance (<0.2 dB variation); seamless fiber alignment for reliable interchangeability.

Color-Coded Cable Sheathing for Easy Identification

The sheath color of fiber optical patch cord is usually defined by the fiber type and may vary depending on the mode and performance level.

Standardized Production

Multiple processes, strict screening, quality assurance.

Fine grinding
To ensure that the center of the optical fiber grinding offset, the surface of the optical fiber without defects, the size of the end curvature radius and other technologies meet the standard

Insertion/return loss detection
Insertion loss ≤0.3dB, return loss ≥30dB

End detection
End geometry test to ensure that the end curvature radius vertex offset, fiber height meets the standard

Meet the Various Installation Requirements

os2 fiber patch cords are used in optical fiber communication room, local area network (LAN), optical fiber data transmission, optical fiber into the home, and so on.

we offer high quality gigabit lc duplex single mode fiber that can provide customers with fast and reliable network transmission services.

Optical fiber communication room Local area network (LAN)

we offer high quality gigabit lc duplex single mode fiber that can provide customers with fast and reliable network transmission services.

Optical fiber data transmission Fiber to the home (FTTH)

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