VIAVI Solutions COSA-4055 Test Instrument Module is a COSA-4055 card designed for use in the JDSU/VIAVI T-BERD 2000 test platform. As a removable module, it plugs into the T-BERD 2000 chassis to provide the COSA-4055 testing capabilities within the system. It serves as part of VIAVI’s modular test architecture for expanding the capabilities of the T-BERD 2000 family.
