How many modules can be accommodated by the rack line box

Updated on Mon Aug 18 2025

Rack-mount fiber optic enclosures or line boxes are used to organize and manage fiber optic cables and connectors. They come in various sizes, with different capacity options to accommodate different numbers of modules. The number of modules that can be accommodated by a rack line box depends on the size and type of the enclosure.


There are two main types of rack-mount enclosures: sliding tray and fixed tray enclosures. Sliding tray enclosures can hold multiple sliding trays, each of which can accommodate a certain number of modules. Fixed tray enclosures, on the other hand, have a fixed number of modules that can be accommodated.


Sliding tray enclosures are more flexible and can accommodate a higher number of modules. They are designed with sliding trays that can be easily removed for maintenance or configuration purposes. The number of modules that can be accommodated by a sliding tray enclosure depends on the number of sliding trays it has and the number of modules each sliding tray can hold.


For example, a 1U sliding tray enclosure can accommodate up to 3 sliding trays, each of which can hold up to 4 modules. This means that the enclosure can accommodate up to 12 modules in total. A 2U sliding tray enclosure can hold up to 6 sliding trays, each of which can hold up to 8 modules, allowing for a total of 48 modules.


Fixed tray enclosures, on the other hand, have a fixed number of modules that can be accommodated. They are designed with a fixed number of trays that cannot be removed. The number of modules that can be accommodated by a fixed tray enclosure depends on the size of the enclosure and the number of modules each tray can hold.

fiber optic terminal box

For example, a 1U fixed tray enclosure can accommodate up to 12 modules, with each tray holding up to 6 modules. A 2U fixed tray enclosure can hold up to 24 modules, with each tray holding up to 12 modules.


It's important to note that the number of modules that can be accommodated by a rack-mount enclosure depends on the size and type of the enclosure. The capacity can vary greatly between different manufacturers and models. Before selecting a rack-mount enclosure, it's important to consider the number of modules that need to be accommodated and choose an enclosure with a suitable capacity.


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