An ST-ST single-mode fiber optic patch cord is a fiber cable with ST connectors on both ends, designed for long-distance, high-performance single-mode network connections.

Overview

ST-ST single-mode fiber optic patch cords use single-mode OS2 fiber (9/125 µm), which allows for long-distance data transmission with minimal signal loss, typically up to 10 km at 1310 nm wavelength . The ST connectors are bayonet-style, providing secure and reliable connections, commonly used in telecommunications, data centers, and network equipment setups .

Key Features

• Connector Type: ST on both ends (ST-ST), ensuring compatibility with ST ports on patch panels, switches, or optical devices .
• Fiber Type: Single-mode (OS2), optimized for long-distance transmission with low attenuation .
• Cable Jacket: Available in OFNR (indoor riser), OFNP (plenum), or LSZH (low smoke zero halogen) for safety and environmental compliance .
• Polish Type: Typically PC, UPC, or APC, affecting return loss and signal reflection .
• Length Options: Available in standard lengths (1m, 3m, 5m, etc.) and custom lengths to suit network layouts .
• Performance: Low insertion loss and high reliability, with factory testing to ensure network uptime .

Applications

ST-ST single-mode patch cords are widely used for:

• Telecommunication networks connecting switches, routers, and optical equipment.
• Data centers for linking patch panels and optical distribution frames.
• Premise installations where long-distance single-mode connections are required.
• High-speed networks such as Gigabit Ethernet and beyond, where low attenuation and minimal signal reflection are critical .

Advantages

• Long-distance capability due to single-mode fiber.
• Secure and reliable connections with bayonet-style ST connectors.
• Versatile installation options with indoor/outdoor and plenum-rated jackets.
• Customizable lengths and connector combinations for specific network needs . In summary, an ST-ST single-mode fiber optic patch cord is an essential component for high-performance, long-distance optical networks, offering secure connections, low signal loss, and flexible installation options.