ADVA Optical Networking F8/NMCL/M/U. Part Number: 0091003610- Ensemble Controller Connection License for one compact shelf of FSP 3000 C (3HU or 4HU) UPGRADE. license shipped in paper form. applicable to ENC 11.3 and prior versions One license to upgrade an active FSP 3000 C 3HU or 4HU shelf from one major release to a different major release