Norstar NTBB25 6-port Fiber Expansion Card w/ T1 Clock

This is the 6 port fiber expansion card for the MICS. It allows the expansion of lines and/or stations via the M12X0 fiber trunk module or the M0x16 fiber station module. The MICS control unit will support up to 2 T-1 for Digital Trunk connection, and this card has the T-1 clock card built in. By adding this card you are gaining not only six ports of expansion but also hardware necessary for adding a T-1.