Custom MTP-12 Armored Trunk Cable, 12-144 Fibers, OS2
For Tanzanian site work, correct product selection should be followed by careful transport, connector inspection and retention of the fiber records. This configured-to-order trunk cable builds 12 to 144 OS2 9/125µm G.657.A1 fibers into a double-jacketed armored unit 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
- US Conec MTP Elite connectors, female or male, APC
- 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
Specifications
| Connector A | US Conec MTP Elite, Female or Male |
|---|---|
| Connector B | US Conec MTP Elite, Female or Male |
| Polish Type | APC to APC |
| Fiber Mode | OS2 9/125µm |
| Wavelength | 1310/1550nm |
| Glass Fiber | G.657.A1 |
| Fiber Count | 12-144 Fibers (Base-12) |
| Polarity | Type A / Type B / Type C |
| Cable Jacket | Plenum (OFNP) / LSZH |
| Cable Structure | Double Jacket, Armored |
| Trunk OD | 4.5-14.2mm (by fiber count) |
| Breakout OD | 2.0mm |
| Breakout Length | 0.84m |
| Min. Bend Radius | 10mm |
| Insertion Loss | ≤0.35dB (0.15dB Typ.) |
| Return Loss | ≥65dB |
| Attenuation at 1310nm | ≤0.35dB/km |
| Attenuation at 1550nm | ≤0.21dB/km |
| Tensile Strength | 200N long-term / 660N short-term |
| Operating Temperature | OFNP: -10 to 60°C; LSZH: -10 to 70°C |
| Storage Temperature | OFNP: -10 to 70°C; LSZH: -20 to 70°C |
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. Because the double-jacket armored build puts a helical steel tube around the fiber core, the installed trunk carries the mechanical rating itself and the path does not automatically depend on the condition of the conduit.
MTP Elite performance and the loss budget
Parallel-optic links chain various mated pairs; thus, per-connector loss decides whether the link 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 cords end to end.
Polarity: Type A, Type B and Type C
MTP links must land transmit on receive, and the installed trunk polarity is how that is engineered. Type An is straight-through, Type B is reversed, Type C is pair-flipped; the correct option is dependent on the cassette and duplex cord plan at both connector ends. State the polarity method with the request and the installed trunk is built and labeled to match it.
Fiber counts from 12 to 144
Base-12 build scales the identical 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 supplied on order 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 choice on long or conduit routes, and feed the installed trunk rather than dragging it around bends. Because the 10mm minimum bend radius of the G.657.A1 core is generous, but the practical limit on site is set by the installed trunk OD, plan sweeps rather than right-angle turns at every direction change.
Standard lengths plus custom builds
Trunks are built to the path: typical orders run from 1m (3ft) equipment-room links to 30m (98ft) and well beyond for inter-building pulls. Give the measured path with allowance for vertical drops and service loops, and the factory confirms the build and packaging for the stated length.
Factory quality control and testing
Every MTP termination is interferometry-checked for end-face geometry, and each 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. For Tanzanian site work, keep this requirement with the field checklist and the delivered product records.
Purchase and Factory Support
Send the fiber count, connector gender per end, polarity type, jacket rating, path length and any breakout or pulling-eye needs. The factory returns a setup diagram with the quotation, and production starts once the diagram is approved. For Tanzanian deliveries, the order details should include any site identification needed by the installation team.
