FTTH indoor singlemode fiber optic cable Allied Telesis DK-D3902-SC-W, SM 9/125 OS2 G.657.A1, SC connectors

Allied Telesis DK-D3902-SC-W is an indoor FTTH singlemode fiber optic cable designed for in-building distribution and fiber-to-the-home installations. It uses a 9/125 µm singlemode fiber meeting OS2 and G.657.A1 specifications to provide low attenuation and improved bend performance for indoor routing. Fitted with SC connectors for simplex connections, the cable supports standard singlemode transmission characteristics required for broadband access, IPTV, and residential or small business backbone links.

Advantages

The cable combines standard 9/125 µm singlemode performance with G.657.A1 bend-insensitive fibre characteristics, reducing signal loss in tight routing and conduit runs. SC connectors offer reliable, easy-to-install plug-and-play termination compatible with many indoor panels and ONTs. Its indoor-rated construction is intended to simplify deployment in apartments, corridors, risers and equipment rooms while maintaining singlemode transmission quality over typical access distances.

Suitable for

• FTTH drop and in-home distribution
• Indoor backbone links between equipment rooms and floor distribution panels
• Connection to optical network terminals (ONTs) and residential gateways
• Patching between wall outlets and patch panels with SC interfaces

Key specifications

• Fiber type: singlemode 9/125 µm
• Optical category: OS2
• Bend-insensitive standard: G.657.A1
• Connector type: SC (simplex)
• Application: indoor, FTTH and building backbone

How to use

Route the cable through indoor pathways, conduits or trunking avoiding sharp bends and excessive tension. Terminate or connect using the SC connectors directly into compatible sockets on ONTs, patch panels or wall outlets. Ensure connectors are clean before mating to minimise insertion loss. For longer runs, plan for intermediate patching at distribution panels to maintain manageable cable lengths and serviceability.

Usage recommendations

Store and handle the cable in accordance with standard fibre handling practices: avoid twisting, keep bend radii above recommended limits for G.657.A1, and protect connector endfaces with dust caps until installation. Use proper cleaning tools for SC connectors and perform optical loss testing after installation to verify link performance.