21/02/2026

FDN 59 port B length IR closure with basket and 24 SE-IR MKI trays fitted with 2 x 3A splice bridges
Art.-No. 857-00503 | FDNIR-BXBCWX

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  • 56 drop ports and one oval port (for loop-through cable); ideal for FTTH access applications.
  • Oval-shaped body for installation where space is limited.
  • Fiber loop storage basket for loop-through installations.
  • Closure cover is environmentally sealed with a high-quality clamp and seal.
Color Black (BK)
Content FDN 59 Port IR Base
B-Length Cover (Dome)
Quick Release Clamp
Sealing O-Ring
Fiber Storage Basket
Fiber Optic Routing Module
Fiber Optic Storage Unit
Fiber Optic Storage Unit Lid
Fiber Slot Entry Module
Fiber Slot Retaining Block
Reusable Cable Ties
Tray Lid
Tray Tool
Anchor Fixing Kit (3)
Spiral Binding
Isopropyl Alcohol Wipes
Desiccant
Installation Guide
Marker Kit: Red Marker 1 - 48; Green Marker 1 - 48
Description The 59-port FDN is a medium-sized, oval, fiber-optic splice closure. Its high drop port count is particularly suited for use in FTTH access networks.
The Integrated Routing (IR) FDN closure has a modular fiber management system available in a range of lengths to suit the number of fibers and splices required. The IR system ensures positive fiber management; a 30 mm bend radius can be maintained from cable entry all the way up onto the splice trays.
Trays are supplied in packs of 12 (SC-B) or six (SE), available in multiple colors for color coding within the enclosure, can be easily installed onto the IR backplane as needed and can be configured to accommodate heat shrink fusion splice sleeves and/or a selection of fiber-optic splitters.
Closure has a maximum splice capacity of 864 fibers using SC-B trays and can be fitted with a flash test valve and/or grounding feed through. Its cover is environmentally sealed with a high-quality clamp and seal. Cable ports can be sealed using either Cablelok mechanical seals or heat-shrink sleeves.
PART DESCRIPTION FDNIR-BXBCWX
Packaging Type box
Part No. FDNIRBXBCWX
Port Type L, T, S, B, R
Product family FDN Integrated Routing Closures
Short Desc. IR FDN 59 Port Cover-B Basket with 24 SE trays (288 fibers), PP, Black, 1/pkg
Splice Capacity 288
Technical Description The FDN 59 Port Integrated Routing (IR) B Length closure with basket is supplied with a Polypropylene base. The base configuration of 58 round ports and 1 oval port covers a cable diameter range of 1.7 – 29.0mm when using Cablelok mechanical seals and 6.0 – 35.0mm when using heatshrink.
The mounting system is manufactured from Grade 304 stainless steel and the backplane is an aluminium extrusion which manages 24 SE-IR MKI trays fitted with 3A splice bridges. The position of the mounting system allows easy access for the routing of the fibre on to the trays and the basket provides storage space for the storage of fibre loops. The trays and fibre optic routing module are white which makes it easy to see the colour of the fibre elements as they are routed through the positive fibre management system. Fibre slot retaining blocks guide fibre elements in to the IR system, the foam pad on the retainer is partially cut through to accommodate a range of fibre counts.
All IR system cover plates are coloured blue identifying them as removable parts allowing access to the fibre, the fibre slot retaining block and tray retaining clips are coloured red to aid in identification if they are dropped.
Type FDNIR-BXBCWX
Closure Length (metric) 663mm
Closure Width (imperial) 12.3"
Closure Width (metric) 312mm
Closure Width 2 (imperial) 8.7"
Closure Width 2 (metric) 222mm
Length (imperial) 26.1"
Length (metric) 663mm
Port Count 1, 2, 4, 2, 52
Material PP
Material Polypropylene (PP)
REACH Conformity Yes
ROHS compliant Yes
Customs Number (Schedule B) 9030400000
Packaging 1 - Weight (kg) 7.2kg
Pkg. Qty. 1EA
Pkg. Qty. 1
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