The FMC-4SFP+ is a FPGA Mezzanine Card (FMC - VITA 57.1) Low Pin Count board that allows for dual of quad channel fast SFP/SFP+ communication.
It offers up to four SFP/SFP+ module slots. All module pins are translated to the FMC carrier voltage VADJ that can be in the range 1.5V to 3.3V. With its low operation voltage it can be used on almost all carriers. The module is designed as an LPC but it is also compatible with HPC carriers.
The components are placed to be compatible also with carriers that have components under the FMC module. The SFP+ cage is placed to fit all carriers without front panel modifications.
The module feature and I2C-controlled LVDS (Low Voltage Differential Signaling) oscillator chip (adjustable via a DIP switch or I2C interface) that operates in a wide range of frequency: 10 to 280 MHz. Automatic configuration of clock oscillator and modules for stand-alone operation is also provided.
A dual-channel version - i.e. FMC-2SFP+ - with standard FMC bezel and a quad-channel version - i.e. FMC-4SFP+ - without front bezell are commercially available.