Maximum capacity of optical distribution box

The highest-capacity optical distribution boxes currently available can accommodate up to 144 fiber cores.

High-Capacity Options

• 144-Core Distribution Box: The MDB FA 192 optical distribution box supports up to 144 optical splices and is suitable for both indoor and outdoor GPON network deployments . It can be extended with pole holders for flexible installation.
• 96-Core Distribution Box: The SJ-ODB-96-SMC box accommodates 96 fiber cores, featuring durable SMC construction, IP65 weatherproof rating, multiple cable entry points, and organized splice trays for efficient fiber management .
• 72-Core Distribution Box: The FDB-24Z supports 72 fiber splices, 24 SC adapters, and micro PLC splitters (1x8 or 1x16), making it ideal for FTTH/PON networks requiring robust connectivity .
• 24-Core Distribution Box: Smaller units, such as the CRXCONEC 24-core box, can splice up to 72 cores in total and are suitable for FTTH applications with horizontal mechanical sealing and flexible mounting options .
• 16-Core Distribution Box: Compact boxes like the FDB-16SCA-BS01 accommodate 16 cores, supporting SC adapters and 1:8 splitters, suitable for mid-span or branch connections in optical networks .

Key Features Across High-Capacity Boxes

• Durable Construction: Most high-capacity boxes use materials like SMC or ABS+ for UV resistance, anti-aging, and environmental protection .
• Weatherproof Design: IP65-rated enclosures ensure protection against dust and water ingress, suitable for outdoor installations .
• Flexible Cable Management: Equipped with splice trays, adapter holders, and splitter support for organized fiber routing and easy maintenance .
• Installation Versatility: Options for wall, pole, or aerial mounting allow deployment in diverse network environments .

Summary

For maximum fiber core capacity, the 144-core MDB FA 192 is currently the largest standard optical distribution box, followed by 96-core and 72-core solutions for medium to large-scale networks. Selection depends on network size, splicing requirements, and installation environment, with all high-capacity boxes offering robust protection and organized fiber management.