On Fri, Jun 3, 2022 at 5:41 AM Bill Gunshannon via cctalk <cctalk@classiccmp.org> wrote: > > Is there a schematic anywhere for the hockey puck mice?
Don't know if there is a VSXXX-AA mouse schematic anywhere. There is a DEPCA print set: http://www.bitsavers.org/pdf/dec/ethernet/depca/MP02421_DEPCA_sch_May87.pdf Page 33 of the PDF has the DEPCA side of the mouse interface. 7-pin connector: (1) Ground (2) RX Data to DEPCA (goes to 9639 Dual Line Receiver) (3) TX Data from DEPCA (comes from 9636 Dual Line Driver) (4) -12V (5) +5V (6) +12V (7) N/C http://www.bitsavers.org/pdf/dec/ethernet/depca/EK-DEPCA-PR-001_Apr89.pdf DEPCA Hardware Reference Manual, EK-DEPCA-PR-001 Chapter 3, Mouse Information details the mouse communication protocol
