N129 LANmark-OF Female MTP-LC Assemblies




  • International
    ISO/IEC 11801:2002/Amd 1:2008/Cor 1:2008

MTP*-LC harnesses allow the rapid deployment of high density patching in SAN and LAN environments in data centres. The I/O density of active devices is increasing. Blade chassis currently reach 48 optical ports (96 LC connectors) per blade with blade densities reaching eight to 18 per chassis. This creates a challenging optical cabling and connectivity management situation.

Nexans’ Optical Harness Assembly enables superb cabling management using staggered links optimised to grow as your system grows while maintaining flexibility and control.

A round cable with a diameter of 3,65 mm is terminated on one side with a female MTP-connector. The other side is terminated as a staggered fan-out with uniboot duplex LC connectors. The round fan-out legs contain 2 fibres.

The stagger between the uniboot connectors is set to minimize excess cable: The distances between the uniboot connectors is standard set at 15 mm+/-5mm.

For a left staggered fan-out the first uniboot connector is located at 600 mm from the fan-out point and is labelled as port “1”. The sixth uniboot connector is 675 mm from the fan-out point and has label “6”.
For a right staggered fan-out the first uniboot connector is located at 675 mm from the fan-out point and is labelled as port “1”. The sixth uniboot connector is 600 mm from the fan-out point and has label “6”.
For a straight fan-out all connectors are located 600 mm from the fan-out point.

The uniboot connector with label “1” is always connected to the most left port of the Plug&Play-module.

The length between the MTP-connector and the fan-out point is variable and can be increased in steps of 1 m.

Custom configurations are available on requests. They are designed to suit for the user’s component lay-out.

Features and benefits

  • Small bend raduis
  • Bend insensitive optical fibres
  • Available in OM3, OM4 and Singlemode mode (OS2)
  • Cable jacket aqua for OM3/OM4 and yellow for Singlemode

Performance and polarity
The MTP connector is a low loss connector. Typical value for the insertion loss for the low loss MTP-MTP connection is 0.2 dB. The limit value is 0.35 dB measured according to standard IEC 61300-3-45.

The polarity is optimised for following channel: Plug&Play-module + MTP/LC Harness. The female MTP-connector of MTP-LC harness fits with the male MTP connector of the Plug&Play module.

Bending radius of the cable is 40 mm.

Cable is flame non propagation (IEC 60332-1) and fire non propagation (IEC 60332-3)

Consistent quality


In order to produce high quality, reliable pre-terminated multi-fibre cables, there are a number of physical characteristics that must be addressed. Therefore, all LANmark-OF Pre-Terms are fully terminated and tested in a quality assured factory environment.   They are delivered with these test results. 

* MTP is a trade name of US Conec



Construction characteristics

Construction characteristics

Fiber optic type
OM3 50/125

Dimensional characteristics

Dimensional characteristics

Nominal outer diameter
3.65 mm

Mechanical characteristics

Mechanical characteristics

Crush resistance (IEC 60794-1-E3)
50 N/cm
Mechanical resistance to impacts
10 impacts of 1 N.m

Usage characteristics

Usage characteristics

Fire retardant
IEC 60332-3
Flame retardant
IEC 60332-1
Minimum static operating bending radius
40 mm
Operating temperature, range
0 - 60 °C
Storage temperature, range
-20 - 60 °C




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