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- Description
- Specifications
The QSFP-40G-CSR4 is a 40GBASE-CSR4 QSFP module in the Cisco interface cards range. It runs four parallel lanes at a nominal wavelength of 850 nm, with an operating window of 840 to 860 nm, over 50 micrometre multimode fiber through an MPO-12 connector.
Reach depends on the fiber grade: 82 m over OM2, 300 m over OM3 and 400 m over OM4 or OM5, with a minimum cabling distance of 0.5 m. Each lane transmits between -7.3 dBm and 0 dBm and receives between -9.9 dBm and 0 dBm, at a bit error ratio better than 1E-12.
The module draws 1.5 W, carries an orange pull tab and is classified as a laser class 1M product. It also supports 4x10G mode when a parallel-to-duplex breakout cable connects it to 10GBASE-SR interfaces, and each lane follows the 10GBASE-SR electrical and optical definition.
The module operates from 0 to 70 C and is stored at -40 to 85 C, the commercial temperature class of the 40GBASE QSFP module family.
Related: Cisco Nexus 5000 and 5500 parts
Related part: QSFP-40G-SR4-S Cisco 40GBASE-SR4 QSFP Module, S-Class, MPO-12
| Part number | QSFP-40G-CSR4 |
| Standard | 40GBASE-CSR4 |
| Wavelength | 850 nm (840 to 860 nm) |
| Connector | MPO-12 |
| Fiber | 50 um multimode |
| Reach | 82 m OM2, 300 m OM3, 400 m OM4/OM5 |
| Power consumption | 1.5 W |
| Transmit power per lane | -7.3 to 0 dBm |
| Receive power per lane | -9.9 to 0 dBm |
| Pull tab colour | Orange |
| Operating temperature | 0 to 70 C |