SC/UPC to ST/APC OS2 Simplex Single-Mode Fiber Patch Cord, 2.0mm LSZH
Designed for links that require an SC/UPC interface on one side and ST/APC on the other, this OS2 simplex single-mode patch cord combines different connector types and polish types in one fixed cable. The current product specification lists OS2 9/125μm single-mode fiber, Corning ClearCurve® G.657.A1 fiber, a 2.0mm LSZH jacket, and ≤0.3 dB insertion loss.
This SC/UPC to ST/APC patch cord is the mixed-connector, mixed-polish configuration in the OS2 single-mode simplex range. It combines an SC/UPC connector on one end with an ST/APC connector on the other, so both the connector type and polish type differ between the two endpoints. The current page specifies OS2 9/125μm single-mode fiber, Corning ClearCurve® G.657.A1 fiber, a 2.0mm LSZH jacket, and ≤0.3 dB insertion loss.
| Connector A | SC UPC | Connector B | ST APC |
| Fiber type | OS2 9/125μm Single Mode | Wavelength | 1310/1550nm CWDM DWDM |
| Fiber Count | Simplex Single Core | Standard Length | Customizable 1m~30m |
| Glass Fiber | Corning ClearCurve® G.657.A1 | Cable Jacket | LSZH Low Smoke Zero Halogen |
| Insertion Loss | ≤0.3dB | Cable Outer Diameter | 2.0mm Yellow Outer |
Product Highlights
SC/UPC to ST/APC Mixed Connector + Mixed Polish
This SKU combines two differences at once: SC to ST connector conversion and UPC to APC polish conversion. Its page identity should therefore stay centered on the complete SC/UPC-to-ST/APC pairing rather than on generic OS2 wording.
Match Each End to the Required Port
The cable itself does not have a fixed transmission direction, but each physical end must still match the required interface: the SC/UPC end goes to the SC/UPC side of the link and the ST/APC end goes to the ST/APC side.
OS2 Simplex, 2.0mm LSZH, ≤0.3 dB
The current page specifies OS2 9/125μm single-mode fiber in a simplex construction, Corning ClearCurve® G.657.A1 fiber, a 2.0mm LSZH jacket, and insertion loss of ≤0.3 dB.



Strict Optical Cable Performance Inspection
Network fiber patch cords demand steady transmission performance and long service life. We select OS2 single-mode fiber, premium LSZH outer material and a mature production process to support stable connections for LAN and fiber network engineering projects.
![]() 3D Interferometer Test | ![]() End-Face Inspection | ![]() Insertion Loss and Return Loss Testing |
Strict Quality Control System
Consistent stable quality is our core competitiveness for fiber optic products. Our technical team has extensive experience in fiber optic communication. Our factory owns complete production and testing workshops, and supports customized OEM & ODM service for various network system suppliers.
Quality Certification
We control the quality of our products, including our strict qualification of manufacturers, quality control process and production technology, and compliance with certification and safety standards. At present, our products meet the industry standards and mainstream quality certification, such as ISO 9001, CE, RoHS, FCC, etc.

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