Well I finally got the C62 board wired, configured and working last Saturday. I ended up configuring the inputs as 5V, Common=ground and I set up the SCHP with Port 2, Pin 17 enabled and the dip switches configured 1-off, 2-on, 3-off, 4-on to enable the SCHP and the Gecko 201's that I'm using. I used the C34G201 for connections from the RJ45 plug to the Gecko drivers. The jumpers on the C34G201's were set to "hard enable". All motors could be jogged, the home and limit switches worked and the emergency switch also worked except that it didn't trigger the Reset button on the Mach 3 screen (the limit switches do trigger it). I'm using the E-Stop terminal provided on the board. I thought maybe by running a jumper from the E-Stop common to the limit and home commons Mach 3 Reset might recognize when the E-Stop was enabled. When I did so however, the board went into fault mode with the LED error lights lit on the drivers and the LED Standby and SCHP also lit. I removed the jumper but since then I haven't been able to get rid of the error lights. The only thing I changed from when everything was working to now was to connect the E-Stop common to the other input (home and limit) commons. I tested the voltage on the E-Stop terminal and noticed it was 12V. Could I have burned something out by connecting it to the 5V inputs? I appreciate any ideas. Thanks.