The QSFP-40G-ER4-AL is a QSFP+ optical transceiver built for long-distance 40G data transmission, enabling 40Gbps speeds over 40km of single-mode fiber at 1310nm via a duplex LC connector, ideal for data center interconnections and enterprise core networks. It features a hot-swappable QSFP+ form factor and 4-parallel lane design for flexible deployment, plus integrated DOM/DDM functionality to monitor operating parameters like temperature and optical power, simplifying maintenance. Compliant with IEEE 802.3ba/bm standards, it supports host FEC and operates reliably within commercial temperature ranges, meeting high-performance requirements for long-haul network links.
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The QSFP-40G-ER4-AL is a high-performance QSFP+ optical transceiver designed for long-distance 40G data transmission, compatible with mainstream network equipment. It enables 40Gbps data transmission over 9/125μm single-mode fiber (SMF) at a wavelength of 1310nm, supporting a maximum transmission distance of up to 40km via a duplex LC connector. Adopting a 4-parallel lane design and hot-swappable QSFP+ form factor, it suits scenarios like data center interconnections, enterprise core networks, and high-performance computing (HPC) networks. It also integrates real-time digital diagnostic monitoring (DOM/DDM) to track key parameters (temperature, voltage, optical power), simplifying network maintenance and troubleshooting.
Specification
| Form Factor | QSFP+ |
| Max Data Rate | 40Gbps total (4 parallel lanes, 11.2Gbps per lane max) |
| Wavelength | 1310nm |
| Transmission Distance | Up to 40km over 9/125μm single-mode fiber (SMF) |
| Connector Type | Duplex LC |
| Protocol Compliance | IEEE 802.3ba / 802.3bm (40GBASE-ER4), QSFP+ MSA, SFF-8436, OTU3 |
| Optical Components | Transmitter: DFB CWDM; Receiver: APD |
| Optical Performance | - Transmit power: -2.7 ~ 4.5dBm- Receive sensitivity: < -21.2dBm- Power budget: 18.5dB |
| Power Consumption | Maximum 3.5W (single +3.3V power supply) |
| Operating Temperature | Commercial range: 0°C ~ 70°C; Storage temperature: -40°C ~ 85°C |
| Diagnostic Function | Supports DOM/DDM (Digital Diagnostic Monitoring) |
| Key Features | Hot-swappable, RoHS compliant, supports host FEC |
| Error Rate | Bit Error Rate (BER) ≤ 1E-12 |
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