Patchcord ST/UPC – ST/UPC 62.5/125 Multimode OM1 Duplex Zip 2.0mm OFNR Orange

**Patchcord ST/UPC – ST/UPC 62.5/125 Multimode OM1 Duplex Zip 2.0mm OFNR Orange** from **Red Cable Technology (RCT)** is a **duplex** fiber patch cord with **ST/UPC** connectors on both ends, built on **62.5/125 multimode OM1** fiber inside a rugged orange **2.0mm OFNR** duplex zip cord jacket.

**Features & Specs:**

• Shaxon’s ST/UPC – ST/UPC 62.5/125 OM1 patch cords feature a rugged orange 2.0mm duplex zip cord jacket and high-quality ST connectors
• Rugged orange 2.0mm duplex zip cord OFNR jacket — orange is the typical jacket color for OM1; polarity clearly marked with yellow polarity labels
• ST connectors: spring-loaded, keyed “push in and twist” design with a bayonet mount and a long cylindrical 2.5mm ceramic or polymer ferrule; remains one of the most widely used connectors, especially in multimode networks such as college campuses and most buildings
• OM1 cable typically comes with an orange jacket and has a core size of 62.5 micrometers (µm); it can support 10 Gigabit Ethernet at lengths up to 33 meters and is most commonly utilized for 100 Megabit Ethernet applications

## Upgrading from Legacy OS1

When weighing on-premises versus access-network fiber replacement or a new installation, we recommend replacing legacy OS1 with a new bend-insensitive OS2 (ITU-T G.657A1) SMF cabling system to support longer reach with enhanced link performance.

## Single-Mode vs Multi-Mode on the Job

Multi-mode fiber is typically cost-effective inside buildings or corporate campuses, while single-mode is better suited to longer-distance runs. Single-mode fiber transmits over greater distances but typically requires more expensive equipment; multi-mode is the cost-effective choice for installations where lengths do not exceed a few hundred meters.

## Ultra-Long-Distance Note

For other ultra-long-distance transmissions that employ exclusively C-band and L-band with optical amplifiers, refer to the ITU-T recommendations for the most appropriate SMF types. The International Telecommunication Union (ITU) is the United Nations specialized agency for information and communication technologies – ICTs.