QSFP ER4
Products Description
This 100G QSFP28 ER4 optical transceiver is engineered for demanding, ultra-long-haul network connections, providing a robust solution for 100 Gigabit Ethernet transmission up to 40 kilometers over standard single-mode fiber. Designed for metro network aggregation and extended data center interconnects (DCI), it addresses the critical need for high-bandwidth, long-reach connectivity beyond the standard 10km LR4 limit, enabling seamless connectivity across wider geographical areas.
The QSFP ER4 transceiver achieves its exceptional performance by integrating a high-performance LAN WDM EML laser transmitter array and a sensitive APD receiver array. This advanced optical design ensures strong signal integrity and sufficient power budget for the challenging 40km distance. It features a duplex LC connector within a compact QSFP28 MSA-compliant package, operating from a single 3.3V supply with a maximum power consumption of 4.5W.
Built for reliability and manageability, The QSFP ER4 module fully complies with the 100G 4WDM-40 MSA specification, the IEEE 802.3-2018 CAUI-4 electrical interface, and relevant SFF standards. The integrated Two-Wire Serial Interface offers comprehensive Digital Diagnostic Monitoring (DDM) for real-time health checks. With a Class 1 laser safety rating, RoHS compliance, and a standard operating temperature range of 0 to 70°C, this transceiver provides a dependable, standards-based solution for future-proof network infrastructure.
FAQ
Q: What are the most critical steps when planning and installing a 40km link?
A: For a reliable 40km link, pre-deployment testing is crucial. Additionally, ensuring every fiber connector is impeccably clean is more important than for shorter links, as signal loss has a much greater impact over long distances.
Q: I see it uses "APD" receivers. What is the practical benefit of that?
A: An APD (Avalanche Photodiode) receiver is much more sensitive than a standard PIN receiver. In simple terms, it can "hear" a much fainter optical signal after it has traveled 40km through fiber. This high sensitivity is what enables the module to reliably recover data over such long distances without requiring an external optical amplifier in many cases, simplifying your link design.
After-Sales Service
The delivery of our products is just the beginning of our partnership. We ensure the ongoing stability of your network through our systematic after-sales support system:
- Rapid Response Mechanism: We provide technical support responses within 24 hours, with a dedicated channel for emergency faults to escalate directly to our engineers.
- Lifetime Maintenance Commitment: Beyond the standard warranty, we offer lifetime fault diagnosis and repair services (charging material cost only).
Macrochip Technology Co., Ltd.
Address: Quanzhou Digital Economy Industrial Park, Xiaxian Road No. 300, Xiamei Community, Beifeng Subdistrict, Fengze District, Quanzhou City, Fujian Province.
Telephone: +86 (595) 2901-6166
Email: sales@macrochip.com.cn
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