Norstar NTBB06 6-port Fiber Expansion Card

This is the 6 port expansion card can be used inside of the Norstar MICS KSU/PBX business phone system. The expansion unit holds up to six expansion modules (Nortel M12X0 NTBB20 Module or NS0x16STMODFN) to be added to the control unit. By adding 2 of these cards to the MICS the control unit will be capable of maximum capacity. Please note that that the MICS must have eXtra Capacity Software - such as Norstar MICS XC 6.1 Software - Refurbished to add a second expansion. One port on this card can also be used for NAM voicemail modules to be added to the system.