Micro ADSR

Module A-140-3 is the single version of module A-140-2. It contains an ADSR type voltage controlled envelope generators with exponential curve shapes (charge/discharge curves of a capacitor) with voltage control for the envelope parameters.
By means of internal jumpers one can select which time parameters are controlled by the CVT input (e.g. D only or D+R or A+D+R). Socket CVT can be normalled to an internal fixed voltage (i.e. the switching contact is then connected to an internal fixed voltage). That way it's possible to change e.g. all time parameters simultaneously by means of the CVT control.
Another jumper is used to set output 2 to normal or inverted envelope.
In the factory CVT is assigned to all time parameters (A,D,R) zugeordnet, socket CVT is normalled to a fixed voltage and output 2 is not inverted.
Changing the positions of the mentioned jumpers allows to modify the factory settings.

https://www.doepfer.de/a1403.htm