FOSCIE6 Inline Type Fiber Optic Splice Closure (FOSC)

Integrating FirstFiber's FOSCIE6 inline splice closure across our regional optical network simplified multi-diameter cable branching. The 6 inlet/outlet ports include 2 ports up to 13 mm, 2 ports up to 16 mm, and 2 ports up to 20 mm, offering field crews ample flexibility when transitioning main trunk lines into smaller distribution feeds. Its reusable mechanical sealing system with thermoplastic rubber grommets provides a reliable watertight seal without requiring heat guns or torches. Built from durable Polycarbonate (PC) and operating across -40°C to +65°C, the enclosure withstands harsh environments in aerial, pipeline, wall-mount, and manhole deployments. Internally, its 4 splice trays accommodate up to 96 bunchy fibers (24 per dual-layer tray) or 144 ribbon fibers.

At a reference baseline price of just $17 USD, FirstFiber's FOSCIE6 offers exceptional commercial value for municipal and B2B fiber builds. Measuring 430 (L) × 180 (W) × 125 (H) mm with a net weight ranging from 2.5 kg to 2.8 kg, the compact inline chassis is easy for technicians to maneuver during overhead aerial hanger or wall installations. The closure arrives as a complete turnkey package with standard hardware, including M8 and M10 wrenches, 2 aerial hanging hooks, sealing tape, insulation tape, nylon ties, a grounding wire, abrasive cloth, and fiber protective sleeves. Supporting up to 144 ribbon fibers with selectable capacities from 24 to 96 Cores, it is an extremely cost-effective choice for expanding municipal FTTx lines.

We standardized on the FOSCIE6 for underground duct, pipeline, and direct-buried splicing contracts due to its rigid Polycarbonate outer body. Joined by heavy-duty bolts and an internal sealing grommet, the housing withstands soil compression and environmental stress without leaking. We opted to equip our closures with the optional pressure testing valve and desiccant bag to perform air pressure integrity checks prior to trench backfilling. The central foundation plate firmly anchors cable strength members and buffer tubes, while the 6 port plugs maintain airtight seals on unused cable entries. It is a thoroughly dependable, reusable inline splice closure for long-term outdoor cable management.