Panduit SFP+ Passive DAC cable assemblies may not be compatible

The connector has an integrated EEPROM with information populated in registers that is provided to the active equipment when queried through an I2C bus Most active equipment port allow for nterchangeable types of me to be plugged into its ports. The registers in the EEPROM provide a method for the connector to identify itself as an SFP+ Passive DAC to allow the active equipment to operate in the proper mode. Other information contained in the memory reg.The Panduit SFP+ 10 Gb/s Direct Attach Passive and Active Cable Assemblies are MSA, SFF-8431, SFF-8432 and SFF-8472 compliant, which means they are compatible with all active equipment with MSA compliant ports.
Unfortunately, Panduit SFP+ Passive DAC cable assemblies may not be compatible with equipment built with non-MSA compliant or non up-to-date ports. Additionally, some equipment vendors may utilize a lock-out mechanism by requiring vendor specific information on the EEPROM ocated on the SFP+ Passive DAC assembly connector. This was originally implemented to ensure authorized ptical transceivers were used with a particular vendor’s equipment, and now some equipment vendors have implemented similar requirements for SFP+ DAC cable assemblies as well.