Description
The Juniper QSFP-40GE-ER4 is a high-performance optical transceiver designed for long-haul 40 Gigabit Ethernet connectivity over single-mode fiber. Housed in a compact QSFP+ form factor, it supports distances up to 40 kilometers using duplex LC connectors, making it ideal for data center interconnects and large-scale enterprise networking. This module operates over four wavelengths in the 1310 nm range using coarse wavelength division multiplexing (CWDM) technology, optimizing fiber utilization and minimizing infrastructure costs. Its robust design ensures compatibility with Juniper networking equipment, while also supporting MSA-compliant systems for broader interoperability.
Engineered with integrated digital diagnostics monitoring (DDM), the QSFP-40GE-ER4 provides real-time data on temperature, optical power, and voltage levels to aid in proactive network management. It supports a data rate of 41.25 Gbps and complies with the IEEE 802.3ba 40GBASE-ER4 standard, ensuring reliable and consistent performance across long distances. The transceiver features built-in forward error correction (FEC) to maintain signal integrity, especially in high-interference environments. Ideal for those seeking cost-effective, used networking solutions, this module offers enterprise-grade functionality and durability at a fraction of the price of new hardware.

