The Exfo IQ-206 Expansion Unit has six slots for modules, a Sequential Position Display, and connects to Exfo IQ-203 Control Unit via a SCSI cable, or to a standard PC using a IQ-206 PC expansion card (not supplied). 

 The IQ-200 Optical Test System includes top-of-the-line scalable hardware such as a modular platform, expansion units and a complete range of plug-in test modules.