ACT 20 meter LSZH Multimode 62.5/125 OM1 fiber patch cable duplex with ST connectors

The ACT 20 meter LSZH Multimode 62.5/125 OM1 Duplex ST fiber patch cable provides a reliable optical link for 10/100 Mbps and legacy multimode network environments. Constructed with a 62.5/125 µm core/cladding multimode fiber (OM1) and terminated with ST connectors on both ends in a duplex configuration, this 20 m cable supports full-duplex communication and is suitable for connecting switches, patch panels, transceivers and equipment within buildings. The LSZH (Low Smoke Zero Halogen) jacket reduces toxic and corrosive gas emissions in the event of fire, improving safety in enclosed spaces.

Advantages

This ACT fiber patch cable combines multimode OM1 performance with ST connector compatibility for straightforward installation in existing multimode infrastructures. The 20 meter length balances reach and manageable cable routing for data centers, wiring closets and equipment rooms. The LSZH outer jacket minimizes smoke and halogen emissions, meeting safety requirements for indoor installations. Duplex termination ensures simultaneous transmit and receive channels with minimal insertion loss when proper mating adapters are used.

Suitable for

• Connecting multimode networking equipment (switches, hubs, transceivers) within buildings
• Patch panels and wiring closets requiring OM1 duplex links
• Short- to medium-reach LAN segments, campus connections, and equipment interconnect
• Environments with fire-safety requirements where low smoke and halogen-free materials are preferred

Key specifications

• Fiber type: Multimode 62.5/125 µm (OM1)
• Length: 20 meters
• Termination: Duplex ST connectors
• Jacket material: LSZH (Low Smoke Zero Halogen)
• Mode: Multimode full-duplex
• Typical usage: Indoor horizontal and equipment-level connections

How to use

Route the cable between devices, ensuring the duplex ST connectors align with the corresponding ST ports or adapters. Avoid tight bends and maintain the manufacturer’s minimum bend radius to prevent increased attenuation. Secure excess cable length with appropriate cable management to reduce strain on connectors. Verify proper mating by checking link status on connected devices and, if available, measure optical loss to confirm acceptable insertion loss values for the installation.

Recommendations

Store and handle the fiber cable carefully to avoid kinks or sharp bends. Use compatible ST adapters and follow workplace safety guidelines for LSZH materials when installing in enclosed or high-occupancy areas. For higher bandwidth requirements or longer distances, consider multimode OM3/OM4 or singlemode alternatives.