Optical transmission hardware integration one-stop service provider
Views: 0 Author: Site Editor Publish Time: 2026-10-30 Origin: Site
As hyperscale cloud computing, AI foundation models, and high-performance computing (HPC) clusters rapidly advance, 200G, 400G, and 800G high-speed optical transmission infrastructure demands extreme front-panel density and optimized airflow management. The CS® Standard Duplex Very Small Form Factor (VSFF) Optical Connector has emerged as the definitive interconnect architecture, overcoming physical space limitations to deliver exceptional density and carrier-grade optical reliability.
Designed specifically for 200G/400G/800G optical transceivers, ultra-dense patching systems, and co-packaged/on-board optics (COBO/OBO), the CS connector incorporates two high-precision Φ1.25mmΦ1.25mm zirconia ceramic ferrules. It retains the proven optical precision of single-ferrule polishing while achieving extreme miniaturization.
While conventional LC Duplex connectors require a 6.25mm6.25mm ferrule pitch, the CS connector reduces pitch to 3.8mm3.8mm, shrinking overall connector volume by 40%. On standard 1U/2U racks and optical distribution frames (ODF), it doubles port density (100% increase), freeing critical cabinet cabling space and substantially improving thermal airflow and cooling efficiency.
With a compact footprint (8.0mm8.0mm width and 11.5mm11.5mm height), the CS connector enables ultra-narrow side-by-side arraying, resolving severe front-panel space constraints on blade servers and high-speed optical modules.
To solve the challenge of accessing latches in densely packed cabling fields, the CS connector features an integrated Push-Pull Tab. Available in 4 length variants (standard, medium, and extended lengths), it enables rapid, one-handed insertion, locking, and extraction without specialized tools.
Premium Low-Loss Singlemode: Typical insertion loss as low as 0.05 dB0.05 dB with maximum insertion loss ≤0.15 dB≤0.15 dB; return loss ≥65 dB≥65 dB (APC) and ≥55 dB≥55 dB (UPC).
Mechanical & Environmental Ruggedness: Complies with IEC 61753-1 Grade B random mating and Telcordia GR-326-CORE standards, supporting over 500 mating cycles (ΔIL<0.2 dBΔIL<0.2 dB) across a −40∘C∼+75∘C−40∘C∼+75∘C operating range.
Supports 900μm900μm tight-buffered fibers, Φ1.6mmΦ1.6mm, Φ2.0mmΦ2.0mm, and up to Φ3.0mmΦ3.0mm duplex round/zipcord cables with cable retention exceeding 70 N70 N, balancing flexible routing with robust mechanical protection.
The CS connector is officially standardized by the Telecommunications Industry Association (TIA) under ANSI/TIA-604-19, ensuring full international interoperability and intermateability.
The CS interface has been officially adopted by the QSFP-DD MSA, OSFP MSA, and COBO Consortium as the designated 2-channel optical interface for 2x100G, 2x200G, and 2x400G transceivers, supporting independent dual-branch optical breakouts.
Directly connects QSFP-DD and OSFP 2x400G transceivers across spine-leaf switching matrices and GPU cluster fabrics, delivering massive bandwidth density.
Enables up to 144–288 duplex ports per 1U patching unit, significantly reducing colocation footprint and operational expenditure.
Provides high-density chip-to-panel optical breakouts and ruggedized interconnects for 5G BBU/RRU base stations under challenging operating conditions.
Combining a 3.8mm compact pitch, 2x panel density increase, ultra-low 0.05dB insertion loss, and ergonomic Push-Pull tab operation, the CS duplex VSFF optical connector represents the definitive evolution beyond traditional LC Duplex for 200G/400G/800G infrastructures. It provides enterprise data centers with a future-ready foundation for superior density, thermal efficiency, and optical performance.
