FOSCIM6 Inline Type Fiber Optic Splice Closure (FOSC)

Deploying FirstFiber’s FOSCIM6 inline splice closure across our regional distribution network solved several multi-size cable transition challenges. The 6 entry ports are divided across three distinct cable diameters—2 ports up to 13 mm, 2 ports up to 20 mm, and 2 ports up to 23 mm—giving field technicians immense flexibility when branching main feeds into smaller distribution lines. The reusable mechanical sealing structure featuring thermoplastic rubber grommets forms a watertight seal without needing heat guns or torches. Housing up to 4 splice trays, the unit supports up to 96 bunchy fibers or 288 ribbon fibers. Built from Polycarbonate (PC) and operating across -40°C to +65°C, it provides dependable protection in manhole, pipeline, and aerial installations.

At a reference price starting at just $17 USD, FirstFiber's FOSCIM6 delivers remarkable commercial value for enterprise-grade fiber infrastructure. Measuring 450 (L) × 220 (W) × 110 (H) mm with a net weight between 2.75 kg and 3.2 kg, the inline housing has a slim profile that simplifies overhead mounting and duct placement. The kit arrives completely furnished with standard installation hardware, including M8, M6, and M10 wrenches, 2 aerial hanging hooks, sealing tape, insulation tape, grounding wire, abrasive cloth, and labeling paper. Managing up to 288 ribbon fibers, it is an incredibly cost-effective workhorse for expanding municipal FTTx lines.

We standardized on the FOSCIM6 for direct-buried and manhole fiber splicing contracts due to its rigid Polycarbonate outer shell. Secured by heavy-duty bolts and insertion plates, the housing withstands soil compression and environmental stress without leaking. The internal layout features a central foundation plate to anchor strength members and buffer tubes securely, alongside 4 dual-layer splice trays holding 24 bunchy fibers each. We opted to include the optional pressure testing valve and desiccant bag to test airtightness before final vault closing. It is a thoroughly dependable, reusable inline closure for long-term outdoor cable management.