
Malaysian upgrade projects can use this configuration where its interface and fiber map align with both the installed cabling and the new hardware. This configured-to-order assembly puts six OS2 9/125µm G.657.A1 fibers in a single armored 4.5mm round trunk, breaking out to six individual 3.0mm legs terminated with any mix of LC, SC, FC or ST connectors in UPC or APC polish. One pull replaces three independent duplex cords, and the helical stainless steel armor protects the whole group along routes where independent jumpers would every need protection.
| Connector Type | LC / SC / FC / ST, any leg combination |
|---|---|
| Polish Type | UPC or APC per leg |
| Fiber Mode | OS2 9/125µm |
| Wavelength | 1310/1550nm |
| Fiber Count | 6 Fibers |
| Flame Rating | Riser (OFCR) / LSZH / Plenum (OFNP) |
| Fiber Grade | G.657.A1 (Compatible with G.652.D) |
| Min. Bend Radius | 30D |
| Insertion Loss | ≤0.3dB |
| Return Loss | UPC ≥50dB, APC ≥60dB |
| Attenuation at 1310nm | ≤0.36dB/km |
| Attenuation at 1550nm | ≤0.22dB/km |
| Trunk OD | 4.5mm |
| Breakout OD | 3.0mm |
| Breakout Length | 0.3m / 0.5m |
| Polarity | A (Tx) to B (Rx) |
| Armor Layer | Stainless Steel Tube |
| Tensile Strength | 200/400N (Long/Short Term) |
| Operating Temperature | OFNP: 0 to 70°C; OFCR/LSZH: -20 to 70°C |
| Storage Temperature | -40 to 70°C (-40 to 158°F) |
Three duplex links usually mean three independent cords competing for space in the same tray. The finished assembly consolidates them into one 4.5mm armored trunk with six fibers, which pulls faster, dresses cleaner and presents only one cable to each pathway pinch point. At the far end this trunk assembly fans out into individual legs that land exactly where three independent cords would have.
The breakout assembly is available with 0.3m or 0.5m legs in 3.0mm armored sub-units, every terminated with LC, SC, FC or ST connectors as the job requires. Legs can generally be mixed, for example LC toward the switch and SC toward the mounted panel, and every branch leg is labeled so the three circuits stay identifiable once installation is complete.
Tray fill, sleeve capacity and bend space are the limits that actually stop retrofits. Replacing three cords with one trunk cuts the completed cable count by two thirds on that route, and the 200/400N tensile rating lets the single trunk tolerate the pull that three loose cords never would. For riser, LSZH or plenum zones the jacket is matched to the building section.
With six fibers in one trunk, identification is part of the build, not an afterthought. Legs are labeled at the two terminations, and the labelling scheme might follow the customer document: circuit numbers, room codes or port references. For phased rollouts the same scheme repeats on each batch, meaning that a technician picking up the fitting in month six reads the cords exactly as the first crew left them.
Inside the 4.5mm jacket the six tight-buffered fibers are stranded around a central strength member, wrapped in aramid yarn and then in the helical stainless tube, with the outer compound extruded over the armor. That layering is what makes it possible for a 200N long-term pull rating in a trunk this thin. The breakout point is potted and strain-relieved so the transition from trunk to legs carries no load into the ferrules.
Trunk lengths follow the standard stocked range: 1m (3ft), 2m (7ft), 3m (10ft), 5m (16ft), 10m (33ft), 15m (49ft), 20m (66ft) and 30m (98ft), with other lengths built to order. State the breakout length and leg labelling scheme with the inquiry so the breakout assembly lands correctly at the two terminations.
Each leg of each finished assembly is terminated with precision zirconia ferrules and measured for insertion loss and return loss before packing; the 0.3dB ceiling and polish-right return figures are verified per fiber, not per batch sample. The breakout assembly point is strain-relieved and the whole assembly is pull-tested to its rated load.
Send the leg connector mix and polish, the jacket rating, trunk length and breakout length. The factory confirms the configuration drawing with the quotation; marking requirements for the three circuits can generally be added to the same drawing. For Malaysian upgrades, our team can compare the requested build with the existing environment before production begins.