Features and benefits
• The MDB-M48 is a wall box or module that allows splicing, patching, splitting or
storage of optical fibres.
• A MDB-M24 version is also available (see datasheet WM062-01 Modular
Distribution Box MDB-M24) with half the capacity, it can be stacked with the MDBM48 to create a modular system.
• The MDB-M48 module has a central area to organize the fibres, this area is
protected with a front door.
• The right hand side cover allows access to a common patch panel for up to 48SC
positions. In the area, the top and bottom walls are removable to provide
patching between the modules.
• The two covers are secured with a 8mm male triangular key, DIN3223.
• Two cable entry ports are available on the MDB-M48.
• The MDB-M48 module can be configured as :
ƒ A Patch Module: Suitable to receive up to four SC pre-terminated cables.
ƒ A Splice Module: Suitable to splice up to 48 fibres from one or two cables to
pigtails connected to the patch panel.
ƒ A Splitting Module: Suitable to mount twelve pre-terminated SC/APC 1×4 PLC
splitters or six pre-terminated SC/APC 1×8 PLC splitters connected to the patch
panel. The splitter input fibres can be spliced to the fibres of one or up to four
incoming cables.
ƒ A Storage Module: Suitable to store unused cable elements.
• The MDB-M48 is rated IP41 with a light grey color RAL 7035.
• A metallic wall support is available to align the modules on a wall.

Technical Data
• Number of cable entry: 4
• Maximum cable diameter(mm) : 15
• Number of splice tray : 1 for the splitting module 4 for the splicing module
• Splice capacity per splice tray 24 for the splitting module 12 for the splicing module
• Maximum splice capacity: 24 for the splitting module 48 for the splicing module
• Maximum capacity on the patch panel: 48 positions for SC type adaptors
• Maximum splitter holder capacity: 12 PLC splitters with 60mm maximum length and 4mm wide
• Required space envelope (mm): 450×150(depth)x180(height)
• Operating Temperature: -25oC to + 70oC (5 to 95% RH)
• Material: ABS-FR, color light grey RAL 7035
• Testing: Fully compliant with FT/RD/RESA/12/02/78 Orange’s specification

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