Some of my modules take advantage of the CV and gate lines that are available in the 16-pin Eurorack power cable to eliminate some of the patching spaghetti that I don’t usually change.
Basically, modules that have either a gate input or a volt-per-octave pitch input will take that signal from the Eurorack bus when the input is unpatched. Patching a signal into the input jack overrides the signal from the bus.
If this feature is not wanted, it can be disabled by a jumper on the back of the module. The jumper’s “enabled” position is marked by an underline, as shown in the photo below.
To put gate and pitch CV signals onto the Eurorack bus, I use my Bus-Driver module. The CV and gate signals come from either a keyboard or an interface module.
disabled position.
