Hi! I am the proud owner of a 3192G coax terminal. As I have recently learned, there is an expansion module for the terminal that allows you to attach a mouse and a IEEE-488 pen plotter to the terminal. Some information about it can be found at [1] and [2]. I am searching for people who are in possession of this expansion unit, out of interest how the PCB looks, etc. If you have one, please respond. -Alex [1] http://bitsavers.org/pdf/ibm/3192/GA18-2590-1_IBM_3192-G_Color_Graphics_Dis… [2] http://www.bitsavers.org/pdf/datapro/alphanumeric_terminals/Datapro_C25_IBM…