We have some great news to share! Our testing lab has welcomed a very important new partner!

We have officially introduced the ZXCTN 6120H-SL. This is not simply adding a piece of hardware, but rather the launch of a completely new quality assurance capability.

Many partners ask: We already have testing equipment, so why did we specifically introduce the ZXCTN 6120H-SL?

Ⅰ.New Equipment Is Now in Place, Enabling the Immediate Implementation of Three Key Capabilities to Support the Delivery of High-Speed Optical Modules

Skill 1: Upfront Joint Testing to Eliminate Compatibility Risks Before Shipment

Breaking through the verification gap across the entire chain from "chip to optical module to bearer equipment" !

Ordinary data center switch SerDes interfaces typically only adapt to standard Ethernet mode , making it difficult to reproduce the chip interaction logic of real transmission equipment; while ZXCTN 6120H-SL, relying on its self-developed bearer chip, performs signal equalization, FEC negotiation, clock domain, and FlexE tunnel collaborative adaptation for 100G QSFP28 series modules with different DSP/CDR solutions on the market under SPN/IPRAN bearer modes, rather than just recognizing DDM.

Different manufacturers and different series of equipment have huge differences in their compatibility with 100G QSFP28 series module chips. Many compatibility issues are hidden in the interaction between the equipment and the chip.

Based on the ZXCTN 6120H-SL platform, we can conduct joint debugging and verification of 100G QSFP28 series modules and supporting chips in advance, identify hidden problems such as timing, signal, and wavelength matching in advance , and avoid compatibility anomalies and service fluctuation risks that are easily overlooked in ordinary environments.

Once customers receive the modules, they no longer need to repeatedly test and debug on the machine, significantly reducing the on-site debugging cycle and greatly improving the certainty of project delivery.

Skill 2: Reproducible Faults—No More “Bottlenecks” in Troublesome Issues.

The most difficult thing to handle is the occasional and irregular connection failures at the customer's site.

Now we can replicate field networking on the ZXCTN 6120H-SL, reproduce similar chip interoperability issues, quickly pinpoint the root cause, and output a closed-loop solution. This eliminates the need for repeated testing within the customer's business process, ensuring maximum uninterrupted service for the customer.

Skill 3: Multi-Rate Compatibility Verification for Seamless Network Upgrades

The ZXCTN 6120H-SL supports multi-rate service testing of 100G/50G/25G/10G/1G. In addition to the verification of the main 100G QSFP28 series modules , it can also cover mixed-rate networking and existing network transformation scenarios, adapting to customers' needs for phased bandwidth upgrades.

For example, the 100G QSFP28 LR4 is a mature and reliable high-speed single-mode long-distance interconnect solution, widely used in data center interconnection, metropolitan area aggregation, and backbone campus networks. Its LAN-WDM technology and universal LC interface have been proven in the market over a long period of time. However, even the best optical modules need a matching verification platform to translate the specifications on paper into a stable service experience on the live network.

Ⅱ.The ZXCTN 6120H-SL Serves As This Crucial "Validation Bridge."

The introduction of the ZXCTN 6120H-SL is a significant step in upgrading our product quality system. We are no longer satisfied with simply ensuring that our products are "qualified for shipment," but rather we are taking a step further to expand our chip compatibility list and accumulate scenario test cases for 100G QSFP28 series optical modules , with verification capabilities that closely match the existing network equipment .

The wave of network bandwidth upgrades continues to surge forward. Customers are no longer just looking for an optical module; they want a stable, low-risk, and consistently reliable high-speed link. In the future, this ZXCTN 6120H-SL dedicated verification platform will continue to safeguard our 100G QSFP28 series optical module products !