The Norstar 6 Port Fiber Combo Expansion Card is for the MICS. It allows the expansion of lines and/or stations via the 12X0 fiber trunk module, 0x8 or the 0x16 fiber station modules for Modular ICS systems.

The Modular ICS 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 the hardware necessary for adding a digital T-1/ PRI.