OM4 LC to ST Fiber Patch Cord — Duplex UPC Connection for LC and ST Ports
The OM4 LC to ST Fiber Patch Cord connects LC UPC and ST UPC terminations in duplex multimode fiber links. Its 50/125μm OM4 fiber and LSZH jacket suit indoor LAN patching between equipment and patch panels with the corresponding connector interfaces.
LC UPC to ST UPC Selection
The LC end and the two ST terminations serve different connector interfaces. Check the port type at each end before ordering, and maintain the required transmit-to-receive mapping across the two fibers. The extended connector boots provide strain relief; follow the installation bend-radius and handling requirements.
Standard length options are 1, 2, 3, 5 or 10 m. Choose an available option for your installation; other lengths require a separate availability check.
Match the Optical Link
40G/100G requires suitable duplex-multimode optics and a compatible channel; MPO SR4 ports cannot accept this two-fiber connector assembly directly. Verify the LC/ST termination path before selecting equipment.


| Connector A | LC UPC | Connector B | ST UPC |
| Fiber Type | OM4 Multimode | Fiber Core | 50/125μm |
| Cable Mode | Duplex | Standard Length Options | 1, 2, 3, 5, 10 m |
| Jacket Material | LSZH | Bandwidth Support | 40G/100G, subject to transceiver and channel compatibility |
| Polish Type | UPC | Application | LAN Network |


LC UPC connector construction is illustrated here; the connector types at each end are listed in the product specifications.
Strict Optical Cable Performance Inspection
| Fiber patch cords require stable transmission performance and long service life. We select high-standard OM4 multimode fiber core, premium LSZH outer material and mature production process to support stable optical transmission, reliable connector performance and long-term network deployment. |
![]() 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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