AKG
Accessory CS3-Base-Unit
- Conference Base Unit
 - For the CS3 Conference System
 - Up to 60 Microphone Stations
 - Frequency Response: 50Hz-20kHz
 - Multiple Inputs/Outpus
 - RS232 Interface
 - SMPS 100 to 240V
 - 320W Nominal Power Cons.
 
CS3-Base-Unit
The CS3 BU is the base unit for the CS3 conference system and provides all the necessary inputs and outputs to manage a conference for up to 60 microphone stations. It is the interface to all audio devices in a meeting room and offers a RS232 interface to connect an optional camera control system.
The CS3 BU can even work in a stand-alone mode in four selectable operating modes offering maximum flexibility in conference management. With the NOM limitation function, the maximum number of active stations can be programmed to 1, 2, 4 or 6 simultaneous open microphones.
Πηγή:  https://www.akg.com/Integrated_Systems/conference-system-components/CS3BU.html

                


