The ICE-CXD Module provides standard E1,  E2, and E3 communication interfaces for the ICE line of PCI card products. Prior to delivery a  factory modification can enable the T1 interface.  The ICE-CXD is a bi-directional interface that supports either input or output via the SMB ports.  Available via the online ICE software tree is special FPGA programming that can enable AMI, HDB3, BZ3S, or BZ8S encoding/decoding and E3 to E1 or E2 to E1 demultiplexing/multiplexing.