Dorelink
Dorelink
As the digital heart of France, Paris and the Ile-de-France region represent one of the world's most sophisticated telecommunications hubs. While the world chases Terabit speeds, the foundational stability of the 155M (Fast Ethernet/STM-1) and 622M (STM-4/OC-12) SFP modules remains critical for Paris’s industrial and urban infrastructure.
In the La Défense business district and within the complex Paris Metro (RATP) signaling systems, low-latency, high-reliability legacy interfaces are essential for maintaining safety-critical communications. Dorelink’s 155M and 622M modules are specifically engineered to interface with legacy SDH/SONET hardware while providing the durability required for modern "Smart City 2030" initiatives in the French capital.
Navigating the French telecommunications landscape requires more than just hardware; it requires a manufacturer that understands European standards. Dorelink provides:
Our 155M/622M SFP modules are not merely "legacy" products; they are modernized through advanced silicon photonics and automated assembly. For the Paris market, where Information Gain is prioritized in procurement, we highlight the following technical advantages:
Designed for mission-critical industrial control. Ideal for the Grand Paris Express project, where synchronized timing and jitter-free transmission are paramount for automated train control.
Bridging the gap between legacy core networks and high-capacity backhauls. Frequently utilized in French telecommunications for microwave backhaul and regional fiber rings where bandwidth efficiency is key.
Globally, the demand for 155M/622M SFPs is driven by the Industrial Internet of Things (IIoT) and the longevity of utility grids. In Paris, the market is unique due to the density of "Colocation" data centers. Large-scale operators like Equinix and Interxion often require legacy interface support for financial services clients who utilize time-tested protocols for secure, low-overhead data transmission.
Integrating 155M SFPs into street-level IoT gateways to manage energy consumption across the 20 arrondissements.
Supporting legacy imaging equipment in Parisian hospitals (AP-HP) with reliable fiber transceiver replacements.
Providing 622M STM-4 interfaces for secure, private fiber links between financial data centers in Pantin and Courbevoie.
Established in 2016, Dorelink Optical Communications Co., Ltd. has grown into a global powerhouse with a 12-year industry pedigree. Our commitment to the Paris market is backed by:
A: Yes, we provide specific EEPROM coding to ensure 100% compatibility with Alcatel-Lucent (Nokia), Cisco, and regional French brands.
A: Absolutely. Our modules meet the industrial-grade temperature and vibration standards required for French railway and tunnel infrastructure.
A: With our 18,500㎡ facility, we maintain significant stock of common 155M/622M modules, typically shipping within 3-5 business days to Paris.
A: We offer 24/7 remote engineering support and have specialized logistics partners to handle "door-to-door" delivery and local compliance issues in France.
