The wavelength of the 40G QSFP+ SR4 optical module is 4x850nm, while the 40G QSFP+ LR4 optical module adopts CWDM coarse wavelength division multiplexing technology, with four wavelengths of 1271nm, 1291nm, 1311nm, and 1331nm. The fiber type and connector are different. The S-Class Cisco 40GBASE-SR4-S QSFP module supports link lengths of 100 and 150 meters, respectively, on laser-optimized OM3, and OM4/OM5 multimode fibers. QSFP-40G-SR4-S is aligned to IEEE 40GBASE-SR4 optical specifications which support high-bandwidth 40G optical links over 12-fiber parallel. The 40 Gbit/s QSFP+ optical modules can only be used with 40 GE interfaces. Transmission distances can be 0. Their operating temperatures comply with commercial grade (0-70 ℃) temperature standards and both have digital diagnostic and. 1, 40G SR4 QSFP + optical module: the center wavelength of 850nm, MPO / MTP interface, multi-mode, support for DDM, the operating temperature of 0 ° C ~ 70 ° C, transmit optical power of -7.
[PDF Version]