144-Fiber OS2 Single Mode MTP/MPO Trunk Cable, 12×MTP/MPO-12 APC Female to Female, Type B

• 144-fiber high-density OS2 single-mode MTP/MPO trunk cable
• Base-12 architecture with twelve 12-fiber sub-units
• 9/125μm single-mode fiber with G.657.A1 / G.652.D options
• Twelve MTP/MPO-12 APC female connectors at each end
• Non-pinned connector configuration for compatible male MTP/MPO interfaces
• MTP® Elite low-loss connectors with ≤0.35dB maximum insertion loss
• Typical insertion loss of ≤0.10dB
• 8° APC polish with ≥60dB return loss
• Type B polarity for inverted fiber mapping
• Compact high-density trunk construction for optimized cable routing
• 3.0mm sub-unit diameter
• Approx. 11.5mm overall cable diameter

• High-density data center backbone cabling
• Hyperscale and cloud data center infrastructure
• 400G and 800G parallel-optics networks
• 40G and 100G single-mode optical links
• AI clusters and high-performance computing systems
• Switch-to-switch and transceiver interconnects
• Main Distribution Area (MDA) and Equipment Distribution Area (EDA) cabling
• Optical Distribution Frame (ODF) and central office installations
• High-density fiber cross-connect systems
• Telecommunications backbone networks
• Structured single-mode fiber infrastructure

OEM and customized MTP/MPO trunk cable assemblies are available for data center, telecom, and high-density optical infrastructure projects. Customization options include cable length, fiber type, connector configuration, connector brand, polarity, jacket material, fan-out length, labeling, pulling eyes, and packaging.

The standard assembly uses 144 OS2 fibers in a 12 × 12-fiber configuration, but other fiber counts and MTP/MPO configurations can be manufactured for project-specific requirements. Alternative connector genders, polish types, and polarity schemes can also be supplied according to the requirements of the complete optical link.

Why are APC connectors used for this single-mode trunk cable?

APC connectors use an angled 8° end face to reduce optical back-reflection at the mating interface. This makes APC particularly useful in single-mode optical systems where return loss and reflected optical power can affect overall link performance. APC and UPC connectors should not be intermated unless the system is specifically designed to accommodate the combination.

Does Type B polarity mean that every fiber is simply reversed?

Type B polarity reverses the fiber sequence between the two ends of an MTP/MPO trunk. This provides the required channel mapping for certain parallel-optics architectures. The exact fiber mapping should be verified against the transceiver and patching architecture before deployment, as polarity requirements can vary between network designs.

What is the advantage of using a 144-fiber trunk instead of separate fiber cables?

A 144-fiber trunk consolidates a large number of optical channels into one organized cable assembly. This can significantly reduce cable congestion, improve routing efficiency, and simplify installation and maintenance in high-density racks and cable trays. It is particularly useful where large numbers of parallel optical connections need to be deployed in a limited physical space.

What is the difference between G.657.A1 and G.652.D fiber for this cable?

Both are single-mode fiber specifications, but G.657.A1 provides improved bend performance compared with conventional G.652.D fiber. G.657.A1 can therefore be advantageous in dense cabling environments where tighter routing or smaller bend radii may be encountered. The appropriate fiber should be selected based on the requirements of the optical network and connected equipment.

Is this cable itself an 800G optical cable?

The trunk cable is a passive fiber assembly and does not determine the Ethernet data rate by itself. It can form part of 800G infrastructure when used with compatible 800G transceivers, connector interfaces, polarity, and optical architecture. The actual reach and supported transmission standard depend on the complete link design.

What does the 3D interferometer inspection verify?

A 3D interferometer evaluates the physical geometry and condition of the MTP/MPO connector end face, including parameters such as fiber height, apex, radius, and end-face geometry. Combined with optical loss testing, this helps verify connector quality before the assembly is shipped and reduces the need for field troubleshooting.