Contact
11 Apr 2022

DROPTIC® LM040BK: building connection in 4 mm!

DropTIC LM040BK from Telenco: robustness and efficiency for fibre deployments.

The LM040BK building connection cable is one of the latest DROPTIC® products. Telenco networks' design office offers a 4 to 12 fibre, multi-purpose cable dedicated to building connections.


A cable adapted to all deployment configurations

The versatility of DROPTIC® LM040BK building connection cable is a real asset for installers as it can be used in different installation environments:

  • Overhead;
  • On a pole or façade;
  • For underground deployments by pulling;
  • For vertical distribution inside buildings.

With its LSZH sheath, the DROPTIC® LM040BK can be installed indoor and outdoor. Thanks to its small diameter of 4 mm, its resistance and its versatility, the LM040BK 12 FO is the ideal cable for building connections.


Resistance: the main asset of DROPTIC® LM040BK

The DROPTIC® LM040BK building connection cable has mechanical and thermal performances that makes it highly compatible with all the applications for which the cable is intended.

DROPTIC® LM040BK cable can be used in areas where the temperature can go from -40°C to +70°C. Installed with Telenco® 5/35 FTTH R or Arobase anchor clamps over spans of 50 metres, it can withstand permanent winds of 115 km/h. Its FRP and aramid reinforced structure also gives it a crush resistance of up to 200 kg and an impact resistance of up to 5 J, without any attenuation of the optical fibres, thus preventing any mechanical risk during installation, such as pedestrian traffic or stapling to walls.

Adaptable to the connection configuration

The LM040BK is a small size 4mm building connection cable that can hold 4, 6, 8 or 12 G.657A2 fibres. Available in black, it is packaged in 1500m reels. However, it is available on request in white, in short lengths and pre-connectorised or not.


Designed for high performance

The LM040BK building connection cable is designed with two FRPs embedded in the sheath, aramid reinforcements, and sealing elements. A 2 to 12 fibre G.657A2 micromodule is inserted into the cable.


Main characteristics

LM040BK branch cable with embedded FRP, aramid reinforcements, sealing elements and 2 to 12-fibre G.657A2 micromodule
  • 4.1mm diameter
  • Black LSZH sheath
  • 400N tensile strength for durable aerial installation
  • 700N tensile strength for underground deployments over distances of a few hundred metres
  • 200kg crush resistance
  • 5J impact strength
  • Fire performance: DCA S1D1A1 to not contribute to the spread of fire in the event of a fire

Also read

Busbar installation project in Spain by NeklanDC, recognised for safety and technical excellence

Data centre project in Spain: award-winning busbar installation for its safety

NeklanDC, a Telenco subsidiary, delivered in Spain an award-winning busbars installation for safety. A strategic project showcasing technical expertise, autonomy, and operational excellence for Europe’s growing datacentre sector.

Telenco’s composite telecom pole workshop in Moirans, France, reflecting a sustainable industrial approach

Responsible manufacturing of composite telecom poles

Telenco manufactures its telecom poles in Moirans through a local and responsible process: reused facility, reduced impacts, strict safety and strong CSR principles.

Telenco and NGIS presenting smart connectivity solutions at NetworkX 2025 in Paris

Smart connectivity solutions for critical environments on display at Network X

Telenco et NGIS exposent leurs solutions de connectivité pour environnements critiques au NetworkX 2025 à Paris. RDV stand D2 pour découvrir l’offre XG-RF et rencontrer nos spécialistes.

Installing EAE busbar trunking in a hyperscale data centre — Telenco / Neklan DC

Success story: implementation of a busbar trunking system in a hyperscale data centre

Telenco, via Neklan DC, installed an EAE busbar trunking power system in a hyperscale data centre: detailed design, coordinated installation with custom firestops, and full testing/commissioning for reliable, scalable, redundant power.

Telenco hybrid cabling solution for DAS indoor deployments in critical environments

Wireless Indoor Networks: Simplifying and Securing Critical Deployments

Telenco offers a complete hybrid solution to secure wireless indoor networks in critical environments. B2Ca-compliant, scalable (4G to 6G) and quick to install, it ensures performance, safety and end-to-end reliability.

Skypark Business Center, Luxembourg — Multi-Operator Active DAS deployment by NGIS (Telenco Group)

NGIS equips Skypark Luxembourg with developer-driven DAS

At Skypark Luxembourg, NGIS (Telenco Group) is deploying a developer-driven Multi-Operator Active DAS, engineered with a digital twin and MIMO to provide seamless 4G/5G coverage across this flagship smart-building project.

Rainford DCI rack deployed in a compact cable landing station near the coast

Enabling subsea connectivity with DCI network racks

Optimise data centre connectivity with Rainford’s DCI network rack: compact, robust and designed for high density deployments. A scalable, durable solution for tomorrow’s evolving interconnect architectures.

Telenco 2024 CSR Report – Sustainability in Action with Global Teams

2024 CSR Report: Telenco strengthens its sustainable commitments

Telenco releases its 2024 CSR Report, highlighting strong commitments to climate action, inclusion, workplace wellbeing, cybersecurity, and responsible industry.

apheon challenge 2025

Societal commitment: Telenco steps up for youth integration through sport

130 Telenco employees joined the APHEON 2025 challenge, raising €8,076 for Sport dans la Ville. A meaningful CSR action supporting youth inclusion through sport.

connected city, smart city ftth rollout

NE4 FTTH Solutions to optimise final connections in Germany

Telenco addresses Germany’s FTTH market challenges with standardised, subsidy-ready NE4 solutions. Designed for operators, they enable faster rollouts and help turn passed homes into active subscribers in a competitive digital landscape.

Breakdown of Telenco Group's carbon emissions by scopes – 2024 footprint

61,677 tCO₂e in 2024: Telenco reinforces its emission reduction strategy

Telenco publishes its 2024 carbon footprint: 61,677 tCO₂e. 97% of emissions fall under scope 3. Eco-design remains our main lever, with actions focused on materials, transport, waste, and energy.

eline preconnected extension boxes

Discreet deployment of optical fibre: eline® pre-connected Rolling-boxes

Telenco’s eline® Rolling-boxes enable discreet and high-performance fiber deployment. Pre-terminated, compact, and easy to install, they integrate seamlessly into any home without heavy work—ideal for FTTR and constrained environments.