Custom MTP-12 Armored Trunk Cable, 12-144 Fibers, OS2

New Zealand engineering teams can use the documented values below to compare the product with the intended channel and as-built requirements. This configured-to-order trunk cable builds 12 to 144 OS2 9/125µm G.657.A1 fibers into a double-jacketed armored item terminated with US Conec MTP Elite connectors. It brings the backbone-class 0.35dB maximum insertion loss of elite MTP terminations to routes that need real mechanical protection: between buildings, through industrial plant, or anywhere a trunk must survive the pathway instead of being protected by it.

Product Highlights

• Insertion loss ≤0.35dB, 0.15dB typical per MTP mated pair
• Double jacket with helical steel armor; OFNP or LSZH
• Polarity Type A, B or C to the link design
• 200N long-term, 660N short-term tensile rating
• 12 to 144 fibers, Base-12 OS2 9/125µm G.657.A1
• US Conec MTP Elite connectors, female or male, APC

Specifications

Armored trunk cabling for backbone links

Backbone trunks cross the most hostile pathways in a facility: riser shafts shared with power, inter-building conduits, plant rooms with moving machinery. The double-jacket armored design puts a helical steel tube around the fiber core; therefore, the relevant trunk carries the mechanical rating itself and the channel does not on its own depend on the condition of the conduit.

MTP Elite performance and the loss budget

Because parallel-optic links chain multiple mated pairs, per-connector loss decides whether the optical path closes. MTP Elite ferrules hold insertion loss to 0.35dB maximum with 0.15dB typical, roughly half the allowance of standard MTP terminations, which buys real headroom when the design stacks a trunk, two cassettes and patch patch leads end to end.

Polarity: Type A, Type B and Type C

MTP links must land transmit on receive, and the relevant trunk polarity is how that is engineered. Type An is straight-through, Type B is reversed, Type C is pair-flipped; the compatible alternative is established by the cassette and duplex cord plan at the two connection points. State the polarity method with the enquiry and the relevant trunk is built and labeled to match it.

Fiber counts from 12 to 144

Base-12 design scales the matching trunk design from a single 12-fiber tube to 144 fibers in a 14.2mm double-jacketed build. Breakout legs are 2.0mm at 0.84m as standard, with pulling eyes and alternative leg arrangements offered on specify for long or difficult pulls.

Pulling and installation practices

Armored trunks pull like a cable, not like a patch cord: respect the 200N long-term limit, use the pulling eye alternative on long or conduit routes, and feed the relevant trunk rather than dragging it around bends. The 10mm minimum bend radius of the G.657.A1 core is generous, but the practical limit on site is set by the relevant trunk OD; therefore, plan sweeps rather than right-angle turns at each direction change.

Length range and customization

Trunks are built to the channel: typical orders run from 1m (3ft) hardware-room links to 30m (98ft) and well beyond for inter-building pulls. Give the measured channel with allowance for vertical drops and service loops, and the factory confirms the build and packing for the stated length.

Optical testing and quality checks

Each MTP termination is interferometry-checked for end-face geometry, and every finished trunk is 100% insertion loss and return loss tested on all fibers, with results shipped against the serial number. The 0.35dB maximum and 65dB return figures are verified per mated pair, and the armor and jacket are inspected over the full trunk length.

How to Specify and Order

Send the fiber count, connector gender per end, polarity type, jacket rating, channel length and any breakout or pulling-eye criteria. The factory returns a design layout with the quotation, and production starts once the layout is approved. New Zealand project orders can include documentation and labeling requirements alongside the technical configuration.