Huawei QSFP‑40G‑iSR4 40 Gbps Transceiver
The Huawei QSFP‑40G‑iSR4 is a 40 Gbps QSFP+ optical transceiver compliant with 40GBASE‑SR4/40GBASE‑iSR4 standards. Featuring a MPO multimode fiber interface, support for OM3/OM4 fiber, hot‑pluggable design, and DDM diagnostics, it enables high‑speed 40 GbE connectivity for data center uplinks, core/distribution links, and short‑reach fiber applications.
Description
Huawei QSFP‑40G‑iSR4 — 40GBASE‑SR4 QSFP+ Multimode Fiber Optical Transceiver
Key Features:
QSFP+ Form Factor
Supports 40 GbE interfaces on switches, routers, and servers.40GBASE‑SR4 / iSR4 Support
Complies with IEEE‑style 40GBASE‑SR4 and non‑standard iSR4 for short‑reach multimode fiber connectivity.Multimode Fiber (MMF) Support
Designed for use with OM3 and OM4 multimode fiber.MPO/PC Connector
MPO (multi‑fiber push‑on) connector for high‑density fiber optics.Hot‑Pluggable
Insert or remove without powering down the host device.Digital Diagnostic Monitoring (DDM/DOM)
Real‑time monitoring of optical signal parameters.Operating Temperature: 0 °C to 70 °C — typical for enterprise environments.
Technical Highlights:
Transmission Rate: 40 Gbps (aggregate).
Wavelength: ~850 nm (VCSEL).
Fiber Type: 50 µm multimode fiber (MMF) — OM3/OM4.
Typical Reach:
• OM3: ~100 m
• OM4: ~150 m
(Note: shorter than typical SR4 distances when labeled iSR4; check specific part number datasheet for exact reach values.)Connector Type: MPO/PC.
Module Power & Optical Characteristics:
• Tx power approx. –7.6 to +0.5 dBm
• Rx sensitivity approx. −9.5 dBm
• Overload power ~2.4 dBmSupport for Breakout (40G→4×10G): On some platforms, can support 4×10 GbE breakout via appropriate MPO to 4×LC fan‑out (if supported by the device).
