Videx 4838 Intelligent amplifier module
The 4838 model (in each version) has a dip-switch that allows for the adjustment of the following settings:
- To set one of 4 different call tones.
- To set the number of rings.
- To set the conversation time.
- To set the door opening time.
The 4838 speaker units provide a cost effective solution with more features and, at the same time simplifying the installation.