. D. A. Green . Astrophysics Group , Cavendish Laboratory , 19 J. J. Thomson Avenue, Cambridge CB3 0HE, UNITED KINGDOM . Archived here are older versions of my Supernova Remnant catalogue. 1993 (summary data only) . 1995 (summary data only) . 1996 . 1998 . 2000 . 2001 . 2004 . 2006 . 2009 . All of these have been superseded by the current, 2014 version. Dave Green/Cambridge, UK/ D.A.Green@mrao.cam.ac.uk

... The design employs a differential structure. ... The input is adapted to 100 differential, and the outputs use standard Low Voltage Differential Signaling (LVDS). ... T/H SINGLE T/H Single Input T/H Single Output 1.35 0.15 0.2 T/H DIFFERENTIAL Input T/H Output T/H 0.1 1.3 0.05 volts volts Figure 5: Digital part and digital gate 0 1.25 -0.05 -0.1 1.2 Integrated Test System A test system is integrated on chip to evaluate the transmission to the data acquisition card (fig: 7). ...