Plantronics + Polycom.
Now together as
I have registered because I need Circuits from the Remote Volume Control for an older Sound System Polycom C1PLY240.
Here you can find some Pictures from another User with the same System.
The Remote Control have only one Pot, 45,7k Ohms and connected with a RJ11 with four pins.
I tried to connect a 200k Ohm Pot (I have no other here at the moment), but I only can switch Off and On the Volume, but not control.
I hope someone here can help me.
Thank you and best Regards
I fixed the Problem, with a 100k Ohm Pot.
I have attached a Pic with the Pin Connection.