40GBASE-LR4 CWDM and PSM QSFP+ Transceiver Links
There are 40GBASE-SR4QSFP+ transceivers and 40GBASE-LR4 QSFP+ transceivers. Its known that 40GBASE-SR4 uses a parallel multimode fiber (MMF) link to achieve 40G. It offers 4 independent transmit and receive channels, each capable of 10G op...英国华人论坛