MJC Mechanical joint closure


  • Watertight splice closure for aerial, underground and direct buried splices in the unpressurized copper telecommunication network.
  • Robust construction with high mechanical strength.
  • Proven gel sealing system:
    • easy to handle at all temperatures.
    • easy to re-enter.
  • Innovative cable fixation system.
  • No special tools needed for installations or re-entry.
  • Closure uses overcentering ‘ski boot’ type latches.
  • Flexible branching plug system allowing installation of cables from 5pair .5 to 100pair .5.
  • Integrated mounting brackets for aerial and wall installation.
  • Reduced inventory as fewer size closures needed to cover a wide range of applications up to 100 pairs.
  • Both dome-ended and in-line closures are available.
  • Cable configuration changes possible with a minimum of extra accessories.
  • No shelf life.

Kit Content

  • Closure cap-ended or in-line
  • Cable clamps
  • Cleaning tissue
  • Gel tape
  • Installation Instruction
  • Measuring tape


  • Branching plugs
  • Blanking plug
  • Port reducer
Plug selection
Port Typical Cable
Port A 5 pr.5 mm
Port B/D 10 pr.5 mm
Port C/D 20 pr.5 mm
Port E/F 30 pr.5 mm
Port M 50 pr.5 mm
Port L 100 pr.5 mm cable
Blanking plug

Different types of branching plugs

Mechanical Joint Closure

Installation steps

Mechanical Joint Closure Diagram

Sizing/ordering information

(Dimensions in mm)
Cable diameter range: from Ø 7 mm till Ø 28 mm
Mechanical Joint Closure Table
For cable re-configuration an extra geltape kit MJC-PS-GEL is necessary.